Migrate all remaining fixtures to jest expect

packages/babel-plugin-proposal-async-generator-functions/test/fixtures/async-generators/declaration-exec/exec.js

@@ -20,5 +20,5 @@ async function main() {
 }
 
 return main().then(() => {
-  assert.deepEqual(actual, expected);
+  expect(actual).toEqual(expected);
 });

packages/babel-plugin-proposal-async-generator-functions/test/fixtures/async-generators/yield-exec/exec.js

@@ -20,5 +20,5 @@ async function main() {
 }
 
 return main().then(() => {
-  assert.deepEqual(actual, expected);
+  expect(actual).toEqual(expected);
 });

packages/babel-plugin-proposal-class-properties/test/fixtures/general/computed-initialization-order/exec.js

@@ -24,15 +24,15 @@ class MyClass {
 const inst = new MyClass();
 
 const expectedOrder = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15];
-assert.deepEqual(actualOrder, expectedOrder);
+expect(actualOrder).toEqual(expectedOrder);
 
-assert.equal(MyClass[1], 10);
-assert.equal(inst[2], 13);
-assert.equal(inst[3], "foo");
+expect(MyClass[1]).toBe(10);
+expect(inst[2]).toBe(13);
+expect(inst[3]).toBe("foo");
 inst[4] = "baz";
-assert.equal(inst.bar, "baz");
-assert.equal(inst[5], 14);
-assert.equal(MyClass[6], 11);
-assert.equal(MyClass[7], 12);
-assert.ok(typeof inst[8] === "function");
-assert.equal(inst[9], 15);
+expect(inst.bar).toBe("baz");
+expect(inst[5]).toBe(14);
+expect(MyClass[6]).toBe(11);
+expect(MyClass[7]).toBe(12);
+expect(typeof inst[8]).toBe("function");
+expect(inst[9]).toBe(15);

packages/babel-plugin-proposal-class-properties/test/fixtures/general/instance-computed/exec.js

@@ -5,9 +5,9 @@ function test(x) {
   }
 
   x = 'deadbeef';
-  assert.strictEqual(new F().foo, 1);
+  expect(new F().foo).toBe(1);
   x = 'wrong';
-  assert.strictEqual(new F().foo, 1);
+  expect(new F().foo).toBe(1);
 }
 
 test('foo');

packages/babel-plugin-proposal-class-properties/test/fixtures/general/instance-computed/input.js

@@ -5,9 +5,9 @@ function test(x) {
   }
 
   x = 'deadbeef';
-  assert.strictEqual(new F().foo, 1);
+  expect(new F().foo).toBe(1);
   x = 'wrong';
-  assert.strictEqual(new F().foo, 1);
+  expect(new F().foo).toBe(1);
 }
 
 test('foo');

packages/babel-plugin-proposal-class-properties/test/fixtures/general/instance-computed/output.js

@@ -12,9 +12,9 @@ function test(x) {
   };
 
   x = 'deadbeef';
-  assert.strictEqual(new F().foo, 1);
+  expect(new F().foo).toBe(1);
   x = 'wrong';
-  assert.strictEqual(new F().foo, 1);
+  expect(new F().foo).toBe(1);
 }
 
 test('foo');

packages/babel-plugin-proposal-class-properties/test/fixtures/general/static-infer-name/exec.js

@@ -2,6 +2,6 @@ var Foo = class {
   static num = 0;
 }
 
-assert.equal(Foo.num, 0);
-assert.equal(Foo.num = 1, 1);
-assert.equal(Foo.name, "Foo");
+expect(Foo.num).toBe(0);
+expect(Foo.num = 1).toBe(1);
+expect(Foo.name).toBe("Foo");

packages/babel-plugin-proposal-class-properties/test/fixtures/general/static-undefined/exec.js

@@ -2,5 +2,5 @@ class Foo {
   static num;
 }
 
-assert.equal("num" in Foo, true);
-assert.equal(Foo.num, undefined);
+expect("num" in Foo).toBe(true);
+expect(Foo.num).toBeUndefined();

packages/babel-plugin-proposal-class-properties/test/fixtures/general/static/exec.js

@@ -3,7 +3,7 @@ class Foo {
   static str = "foo";
 }
 
-assert.equal(Foo.num, 0);
-assert.equal(Foo.num = 1, 1);
-assert.equal(Foo.str, "foo");
-assert.equal(Foo.str = "bar", "bar");
+expect(Foo.num).toBe(0);
+expect(Foo.num = 1).toBe(1);
+expect(Foo.str).toBe("foo");
+expect(Foo.str = "bar").toBe("bar");

packages/babel-plugin-proposal-class-properties/test/fixtures/loose/instance-computed/exec.js

@@ -5,9 +5,9 @@ function test(x) {
   }
 
   x = 'deadbeef';
-  assert.strictEqual(new F().foo, 1);
+  expect(new F().foo).toBe(1);
   x = 'wrong';
-  assert.strictEqual(new F().foo, 1);
+  expect(new F().foo).toBe(1);
 }
 
 test('foo');

packages/babel-plugin-proposal-class-properties/test/fixtures/loose/instance-computed/input.js

@@ -5,9 +5,9 @@ function test(x) {
   }
 
   x = 'deadbeef';
-  assert.strictEqual(new F().foo, 1);
+  expect(new F().foo).toBe(1);
   x = 'wrong';
-  assert.strictEqual(new F().foo, 1);
+  expect(new F().foo).toBe(1);
 }
 
 test('foo');

packages/babel-plugin-proposal-class-properties/test/fixtures/loose/instance-computed/output.js

@@ -7,9 +7,9 @@ function test(x) {
   };
 
   x = 'deadbeef';
-  assert.strictEqual(new F().foo, 1);
+  expect(new F().foo).toBe(1);
   x = 'wrong';
-  assert.strictEqual(new F().foo, 1);
+  expect(new F().foo).toBe(1);
 }
 
 test('foo');

packages/babel-plugin-proposal-class-properties/test/fixtures/loose/static-infer-name/exec.js

@@ -2,6 +2,6 @@ var Foo = class {
   static num = 0;
 }
 
-assert.equal(Foo.num, 0);
-assert.equal(Foo.num = 1, 1);
-assert.equal(Foo.name, "Foo");
+expect(Foo.num).toBe(0);
+expect(Foo.num = 1).toBe(1);
+expect(Foo.name).toBe("Foo");

packages/babel-plugin-proposal-class-properties/test/fixtures/loose/static-undefined/exec.js

@@ -2,5 +2,5 @@ class Foo {
   static num;
 }
 
-assert.equal("num" in Foo, true);
-assert.equal(Foo.num, undefined);
+expect("num" in Foo).toBe(true);
+expect(Foo.num).toBeUndefined();

packages/babel-plugin-proposal-class-properties/test/fixtures/loose/static/exec.js

@@ -3,7 +3,7 @@ class Foo {
   static str = "foo";
 }
 
-assert.equal(Foo.num, 0);
-assert.equal(Foo.num = 1, 1);
-assert.equal(Foo.str, "foo");
-assert.equal(Foo.str = "bar", "bar");
+expect(Foo.num).toBe(0);
+expect(Foo.num = 1).toBe(1);
+expect(Foo.str).toBe("foo");
+expect(Foo.str = "bar").toBe("bar");

packages/babel-plugin-proposal-decorators/test/fixtures/class-constructors/mutate-existing-constructor/exec.js

@@ -7,4 +7,4 @@ class Parent {
   parent() {};
 }
 
-assert.equal(Parent.staticProp, "prop");
+expect(Parent.staticProp).toBe("prop");

packages/babel-plugin-proposal-decorators/test/fixtures/class-constructors/return-new-constructor/exec.js

@@ -9,5 +9,5 @@ class Parent {
   parent(){}
 }
 
-assert.equal(typeof Parent.prototype.parent, "function")
-assert.equal(typeof Parent.prototype.child, "function")
+expect(typeof Parent.prototype.parent).toBe("function");
+expect(typeof Parent.prototype.child).toBe("function");

packages/babel-plugin-proposal-decorators/test/fixtures/class-export-default/exec.mjs

@@ -11,4 +11,4 @@ export default class Foo {
   }
 }
 
-assert.deepEqual(calls, ["Foo"]);
+expect(calls).toEqual(["Foo"]);

packages/babel-plugin-proposal-decorators/test/fixtures/class-ordering/order/exec.js

@@ -25,4 +25,4 @@ class Example {
   prop2 = 2;
 }
 
-assert.deepEqual(calls, [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]);
+expect(calls).toEqual([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]);

packages/babel-plugin-proposal-decorators/test/fixtures/class-ordering/reverse-order/exec.js

@@ -26,4 +26,4 @@ class Example2 {
   prop2 = 2;
 }
 
-assert.deepEqual(calls, [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]);
+expect(calls).toEqual([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]);

packages/babel-plugin-proposal-decorators/test/fixtures/class-prototype-methods/mutate-descriptor/exec.js

@@ -1,7 +1,7 @@
 function dec(target, name, descriptor) {
-  assert(target);
-  assert.equal(typeof name, "string");
-  assert.equal(typeof descriptor, "object");
+  expect(target).toBeTruthy();
+  expect(typeof name).toBe("string");
+  expect(typeof descriptor).toBe("object");
 
   target.decoratedProps = (target.decoratedProps || []).concat([name]);
 
@@ -58,8 +58,8 @@ class Example {
   }
 }
 
-assert(Example.prototype.hasOwnProperty('decoratedProps'));
-assert.deepEqual(Example.prototype.decoratedProps, [
+expect(Example.prototype.hasOwnProperty('decoratedProps'));
+expect(Example.prototype.decoratedProps).toEqual([
   "enumconfwrite",
   "enumconf",
   "enumwrite",
@@ -74,42 +74,42 @@ const inst = new Example();
 
 const descs = Object.getOwnPropertyDescriptors(Example.prototype);
 
-assert(descs.enumconfwrite.enumerable);
-assert(descs.enumconfwrite.writable);
-assert(descs.enumconfwrite.configurable);
-assert.equal(inst.enumconfwrite(), "__1__");
+expect(descs.enumconfwrite.enumerable).toBeTruthy();
+expect(descs.enumconfwrite.writable).toBeTruthy();
+expect(descs.enumconfwrite.configurable).toBeTruthy();
+expect(inst.enumconfwrite()).toBe("__1__");
 
-assert(descs.enumconf.enumerable);
-assert.equal(descs.enumconf.writable, false);
-assert(descs.enumconf.configurable);
-assert.equal(inst.enumconf(), "__2__");
+expect(descs.enumconf.enumerable).toBeTruthy();
+expect(descs.enumconf.writable).toBe(false);
+expect(descs.enumconf.configurable).toBeTruthy();
+expect(inst.enumconf()).toBe("__2__");
 
-assert(descs.enumwrite.enumerable);
-assert(descs.enumwrite.writable);
-assert.equal(descs.enumwrite.configurable, false);
-assert.equal(inst.enumwrite(), "__3__");
+expect(descs.enumwrite.enumerable).toBeTruthy();
+expect(descs.enumwrite.writable).toBeTruthy();
+expect(descs.enumwrite.configurable).toBe(false);
+expect(inst.enumwrite()).toBe("__3__");
 
-assert(descs.enum.enumerable);
-assert.equal(descs.enum.writable, false);
-assert.equal(descs.enum.configurable, false);
-assert.equal(inst.enum(), "__4__");
+expect(descs.enum.enumerable).toBeTruthy();
+expect(descs.enum.writable).toBe(false);
+expect(descs.enum.configurable).toBe(false);
+expect(inst.enum()).toBe("__4__");
 
-assert.equal(descs.confwrite.enumerable, false);
-assert(descs.confwrite.writable);
-assert(descs.confwrite.configurable);
-assert.equal(inst.confwrite(), "__5__");
+expect(descs.confwrite.enumerable).toBe(false);
+expect(descs.confwrite.writable).toBeTruthy();
+expect(descs.confwrite.configurable).toBeTruthy();
+expect(inst.confwrite()).toBe("__5__");
 
-assert.equal(descs.conf.enumerable, false);
-assert.equal(descs.conf.writable, false);
-assert(descs.conf.configurable);
-assert.equal(inst.conf(), "__6__");
+expect(descs.conf.enumerable).toBe(false);
+expect(descs.conf.writable).toBe(false);
+expect(descs.conf.configurable).toBeTruthy();
+expect(inst.conf()).toBe("__6__");
 
-assert.equal(descs.write.enumerable, false);
-assert(descs.write.writable);
-assert.equal(descs.write.configurable, false);
-assert.equal(inst.write(), "__7__");
+expect(descs.write.enumerable).toBe(false);
+expect(descs.write.writable).toBeTruthy();
+expect(descs.write.configurable).toBe(false);
+expect(inst.write()).toBe("__7__");
 
-assert.equal(descs._.enumerable, false);
-assert.equal(descs._.writable, false);
-assert.equal(descs._.configurable, false);
-assert.equal(inst._(), "__8__");
+expect(descs._.enumerable).toBe(false);
+expect(descs._.writable).toBe(false);
+expect(descs._.configurable).toBe(false);
+expect(inst._()).toBe("__8__");

packages/babel-plugin-proposal-decorators/test/fixtures/class-prototype-methods/numeric-props/exec.js

@@ -1,7 +1,7 @@
 function dec(target, name, descriptor) {
-  assert(target);
-  assert.equal(name, 4);
-  assert.equal(typeof descriptor, "object");
+  expect(target).toBeTruthy();
+  expect(name).toBe(4);
+  expect(typeof descriptor).toBe("object");
 }
 
 class Example {

packages/babel-plugin-proposal-decorators/test/fixtures/class-prototype-methods/return-descriptor/exec.js

@@ -1,7 +1,7 @@
 function dec(target, name, descriptor) {
-  assert(target);
-  assert.equal(typeof name, "string");
-  assert.equal(typeof descriptor, "object");
+  expect(target).toBeTruthy();
+  expect(typeof name).toBe("string");
+  expect(typeof descriptor).toBe("object");
 
   target.decoratedProps = (target.decoratedProps || []).concat([name]);
 
@@ -59,8 +59,8 @@ class Example {
 }
 
 
-assert(Example.prototype.hasOwnProperty('decoratedProps'));
-assert.deepEqual(Example.prototype.decoratedProps, [
+expect(Example.prototype.hasOwnProperty('decoratedProps'));
+expect(Example.prototype.decoratedProps).toEqual([
   "enumconfwrite",
   "enumconf",
   "enumwrite",
@@ -76,42 +76,42 @@ const inst = new Example();
 
 const descs = Object.getOwnPropertyDescriptors(Example.prototype);
 
-assert(descs.enumconfwrite.enumerable);
-assert(descs.enumconfwrite.writable);
-assert(descs.enumconfwrite.configurable);
-assert.equal(inst.enumconfwrite(), "__1__");
+expect(descs.enumconfwrite.enumerable).toBeTruthy();
+expect(descs.enumconfwrite.writable).toBeTruthy();
+expect(descs.enumconfwrite.configurable).toBeTruthy();
+expect(inst.enumconfwrite()).toBe("__1__");
 
-assert(descs.enumconf.enumerable);
-assert.equal(descs.enumconf.writable, false);
-assert(descs.enumconf.configurable);
-assert.equal(inst.enumconf(), "__2__");
+expect(descs.enumconf.enumerable).toBeTruthy();
+expect(descs.enumconf.writable).toBe(false);
+expect(descs.enumconf.configurable).toBeTruthy();
+expect(inst.enumconf()).toBe("__2__");
 
-assert(descs.enumwrite.enumerable);
-assert(descs.enumwrite.writable);
-assert.equal(descs.enumwrite.configurable, false);
-assert.equal(inst.enumwrite(), "__3__");
+expect(descs.enumwrite.enumerable).toBeTruthy();
+expect(descs.enumwrite.writable).toBeTruthy();
+expect(descs.enumwrite.configurable).toBe(false);
+expect(inst.enumwrite()).toBe("__3__");
 
-assert(descs.enum.enumerable);
-assert.equal(descs.enum.writable, false);
-assert.equal(descs.enum.configurable, false);
-assert.equal(inst.enum(), "__4__");
+expect(descs.enum.enumerable).toBeTruthy();
+expect(descs.enum.writable).toBe(false);
+expect(descs.enum.configurable).toBe(false);
+expect(inst.enum()).toBe("__4__");
 
-assert.equal(descs.confwrite.enumerable, false);
-assert(descs.confwrite.writable);
-assert(descs.confwrite.configurable);
-assert.equal(inst.confwrite(), "__5__");
+expect(descs.confwrite.enumerable).toBe(false);
+expect(descs.confwrite.writable).toBeTruthy();
+expect(descs.confwrite.configurable).toBeTruthy();
+expect(inst.confwrite()).toBe("__5__");
 
-assert.equal(descs.conf.enumerable, false);
-assert.equal(descs.conf.writable, false);
-assert(descs.conf.configurable);
-assert.equal(inst.conf(), "__6__");
+expect(descs.conf.enumerable).toBe(false);
+expect(descs.conf.writable).toBe(false);
+expect(descs.conf.configurable).toBeTruthy();
+expect(inst.conf()).toBe("__6__");
 
-assert.equal(descs.write.enumerable, false);
-assert(descs.write.writable);
-assert.equal(descs.write.configurable, false);
-assert.equal(inst.write(), "__7__");
+expect(descs.write.enumerable).toBe(false);
+expect(descs.write.writable).toBeTruthy();
+expect(descs.write.configurable).toBe(false);
+expect(inst.write()).toBe("__7__");
 
-assert.equal(descs._.enumerable, false);
-assert.equal(descs._.writable, false);
-assert.equal(descs._.configurable, false);
-assert.equal(inst._(), "__8__");
+expect(descs._.enumerable).toBe(false);
+expect(descs._.writable).toBe(false);
+expect(descs._.configurable).toBe(false);
+expect(inst._()).toBe("__8__");

packages/babel-plugin-proposal-decorators/test/fixtures/class-prototype-methods/string-props/exec.js

@@ -1,7 +1,7 @@
 function dec(target, name, descriptor) {
-  assert(target);
-  assert.equal(name, "str");
-  assert.equal(typeof descriptor, "object");
+  expect(target).toBeTruthy();
+  expect(name).toBe("str");
+  expect(typeof descriptor).toBe("object");
 }
 
 class Example {

packages/babel-plugin-proposal-decorators/test/fixtures/class-prototype-properties/child-classes-properties/exec.js

@@ -1,7 +1,7 @@
 function dec(target, name, descriptor){
-  assert(target);
-  assert.equal(typeof name, "string");
-  assert.equal(typeof descriptor, "object");
+  expect(target).toBeTruthy();
+  expect(typeof name).toBe("string");
+  expect(typeof descriptor).toBe("object");
 
   target.decoratedProps = (target.decoratedProps || []).concat([name]);
 
@@ -23,5 +23,5 @@ class Example extends Base {
 
 let inst = new Example();
 
-assert.equal(inst.prop, "__3__");
-assert.equal(inst.prop2, "__4__");
+expect(inst.prop).toBe("__3__");
+expect(inst.prop2).toBe("__4__");

packages/babel-plugin-proposal-decorators/test/fixtures/class-prototype-properties/mutate-descriptor/exec.js

@@ -1,7 +1,7 @@
 function dec(target, name, descriptor) {
-  assert(target);
-  assert.equal(typeof name, "string");
-  assert.equal(typeof descriptor, "object");
+  expect(target).toBeTruthy();
+  expect(typeof name).toBe("string");
+  expect(typeof descriptor).toBe("object");
 
   target.decoratedProps = (target.decoratedProps || []).concat([name]);
 
@@ -44,8 +44,8 @@ class Example {
 
 const inst = new Example();
 
-assert(Example.prototype.hasOwnProperty("decoratedProps"));
-assert.deepEqual(inst.decoratedProps, [
+expect(Example.prototype.hasOwnProperty("decoratedProps")).toBeTruthy();
+expect(inst.decoratedProps).toEqual([
   "enumconfwrite",
   "enumconf",
   "enumwrite",
@@ -58,42 +58,42 @@ assert.deepEqual(inst.decoratedProps, [
 
 const descs = Object.getOwnPropertyDescriptors(inst);
 
-assert(descs.enumconfwrite.enumerable);
-assert(descs.enumconfwrite.writable);
-assert(descs.enumconfwrite.configurable);
-assert.equal(inst.enumconfwrite, "__1__");
+expect(descs.enumconfwrite.enumerable).toBeTruthy();
+expect(descs.enumconfwrite.writable).toBeTruthy();
+expect(descs.enumconfwrite.configurable).toBeTruthy();
+expect(inst.enumconfwrite).toBe("__1__");
 
-assert(descs.enumconf.enumerable);
-assert.equal(descs.enumconf.writable, false);
-assert(descs.enumconf.configurable);
-assert.equal(inst.enumconf, "__2__");
+expect(descs.enumconf.enumerable).toBeTruthy();
+expect(descs.enumconf.writable).toBe(false);
+expect(descs.enumconf.configurable).toBeTruthy();
+expect(inst.enumconf).toBe("__2__");
 
-assert(descs.enumwrite.enumerable);
-assert(descs.enumwrite.writable);
-assert.equal(descs.enumwrite.configurable, false);
-assert.equal(inst.enumwrite, "__3__");
+expect(descs.enumwrite.enumerable).toBeTruthy();
+expect(descs.enumwrite.writable).toBeTruthy();
+expect(descs.enumwrite.configurable).toBe(false);
+expect(inst.enumwrite).toBe("__3__");
 
-assert(descs.enum.enumerable);
-assert.equal(descs.enum.writable, false);
-assert.equal(descs.enum.configurable, false);
-assert.equal(inst.enum, "__4__");
+expect(descs.enum.enumerable).toBeTruthy();
+expect(descs.enum.writable).toBe(false);
+expect(descs.enum.configurable).toBe(false);
+expect(inst.enum).toBe("__4__");
 
-assert.equal(descs.confwrite.enumerable, false);
-assert(descs.confwrite.writable);
-assert(descs.confwrite.configurable);
-assert.equal(inst.confwrite, "__5__");
+expect(descs.confwrite.enumerable).toBe(false);
+expect(descs.confwrite.writable).toBeTruthy();
+expect(descs.confwrite.configurable).toBeTruthy();
+expect(inst.confwrite).toBe("__5__");
 
-assert.equal(descs.conf.enumerable, false);
-assert.equal(descs.conf.writable, false);
-assert(descs.conf.configurable);
-assert.equal(inst.conf, "__6__");
+expect(descs.conf.enumerable).toBe(false);
+expect(descs.conf.writable).toBe(false);
+expect(descs.conf.configurable).toBeTruthy();
+expect(inst.conf).toBe("__6__");
 
-assert.equal(descs.write.enumerable, false);
-assert(descs.write.writable);
-assert.equal(descs.write.configurable, false);
-assert.equal(inst.write, "__7__");
+expect(descs.write.enumerable).toBe(false);
+expect(descs.write.writable).toBeTruthy();
+expect(descs.write.configurable).toBe(false);
+expect(inst.write).toBe("__7__");
 
-assert.equal(descs._.enumerable, false);
-assert.equal(descs._.writable, false);
-assert.equal(descs._.configurable, false);
-assert.equal(inst._, "__8__");
+expect(descs._.enumerable).toBe(false);
+expect(descs._.writable).toBe(false);
+expect(descs._.configurable).toBe(false);
+expect(inst._).toBe("__8__");

packages/babel-plugin-proposal-decorators/test/fixtures/class-prototype-properties/mutate-initialzer/exec.js

@@ -1,7 +1,7 @@
 function dec(target, name, descriptor){
-  assert(target);
-  assert.equal(name, "prop");
-  assert.equal(typeof descriptor, "object");
+  expect(target).toBeTruthy();
+  expect(name).toBe("prop");
+  expect(typeof descriptor).toBe("object");
 
   let {initializer} = descriptor;
   delete descriptor.initializer;
@@ -24,4 +24,4 @@ class Example {
 
 let inst = new Example();
 
-assert.equal(inst.prop, "__3__");
+expect(inst.prop).toBe("__3__");

packages/babel-plugin-proposal-decorators/test/fixtures/class-prototype-properties/properties-without-initializer/exec.js

@@ -7,5 +7,5 @@ class Example {
 }
 
 let inst = new Example();
-assert(inst.hasOwnProperty("prop"));
-assert.equal(inst.prop, undefined);
+expect(inst.hasOwnProperty("prop")).toBe(true);
+expect(inst.prop).toBeUndefined();

packages/babel-plugin-proposal-decorators/test/fixtures/class-prototype-properties/return-descriptor/exec.js

@@ -1,7 +1,7 @@
 function dec(target, name, descriptor) {
-  assert(target);
-  assert.equal(typeof name, "string");
-  assert.equal(typeof descriptor, "object");
+  expect(target).toBeTruthy();
+  expect(typeof name).toBe("string");
+  expect(typeof descriptor).toBe("object");
 
   target.decoratedProps = (target.decoratedProps || []).concat([name]);
 
@@ -44,8 +44,8 @@ class Example {
 
 const inst = new Example();
 
-assert(Example.prototype.hasOwnProperty("decoratedProps"));
-assert.deepEqual(inst.decoratedProps, [
+expect(Example.prototype.hasOwnProperty("decoratedProps")).toBeTruthy();
+expect(inst.decoratedProps).toEqual([
   "enumconfwrite",
   "enumconf",
   "enumwrite",
@@ -58,42 +58,42 @@ assert.deepEqual(inst.decoratedProps, [
 
 const descs = Object.getOwnPropertyDescriptors(inst);
 
-assert(descs.enumconfwrite.enumerable);
-assert(descs.enumconfwrite.writable);
-assert(descs.enumconfwrite.configurable);
-assert.equal(inst.enumconfwrite, "__1__");
+expect(descs.enumconfwrite.enumerable).toBeTruthy();
+expect(descs.enumconfwrite.writable).toBeTruthy();
+expect(descs.enumconfwrite.configurable).toBeTruthy();
+expect(inst.enumconfwrite).toBe("__1__");
 
-assert(descs.enumconf.enumerable);
-assert.equal(descs.enumconf.writable, false);
-assert(descs.enumconf.configurable);
-assert.equal(inst.enumconf, "__2__");
+expect(descs.enumconf.enumerable).toBeTruthy();
+expect(descs.enumconf.writable).toBe(false);
+expect(descs.enumconf.configurable).toBeTruthy();
+expect(inst.enumconf).toBe("__2__");
 
-assert(descs.enumwrite.enumerable);
-assert(descs.enumwrite.writable);
-assert.equal(descs.enumwrite.configurable, false);
-assert.equal(inst.enumwrite, "__3__");
+expect(descs.enumwrite.enumerable).toBeTruthy();
+expect(descs.enumwrite.writable).toBeTruthy();
+expect(descs.enumwrite.configurable).toBe(false);
+expect(inst.enumwrite).toBe("__3__");
 
-assert(descs.enum.enumerable);
-assert.equal(descs.enum.writable, false);
-assert.equal(descs.enum.configurable, false);
-assert.equal(inst.enum, "__4__");
+expect(descs.enum.enumerable).toBeTruthy();
+expect(descs.enum.writable).toBe(false);
+expect(descs.enum.configurable).toBe(false);
+expect(inst.enum).toBe("__4__");
 
-assert.equal(descs.confwrite.enumerable, false);
-assert(descs.confwrite.writable);
-assert(descs.confwrite.configurable);
-assert.equal(inst.confwrite, "__5__");
+expect(descs.confwrite.enumerable).toBe(false);
+expect(descs.confwrite.writable).toBeTruthy();
+expect(descs.confwrite.configurable).toBeTruthy();
+expect(inst.confwrite).toBe("__5__");
 
-assert.equal(descs.conf.enumerable, false);
-assert.equal(descs.conf.writable, false);
-assert(descs.conf.configurable);
-assert.equal(inst.conf, "__6__");
+expect(descs.conf.enumerable).toBe(false);
+expect(descs.conf.writable).toBe(false);
+expect(descs.conf.configurable).toBeTruthy();
+expect(inst.conf).toBe("__6__");
 
-assert.equal(descs.write.enumerable, false);
-assert(descs.write.writable);
-assert.equal(descs.write.configurable, false);
-assert.equal(inst.write, "__7__");
+expect(descs.write.enumerable).toBe(false);
+expect(descs.write.writable).toBeTruthy();
+expect(descs.write.configurable).toBe(false);
+expect(inst.write).toBe("__7__");
 
-assert.equal(descs._.enumerable, false);
-assert.equal(descs._.writable, false);
-assert.equal(descs._.configurable, false);
-assert.equal(inst._, "__8__");
+expect(descs._.enumerable).toBe(false);
+expect(descs._.writable).toBe(false);
+expect(descs._.configurable).toBe(false);
+expect(inst._).toBe("__8__");

packages/babel-plugin-proposal-decorators/test/fixtures/class-static-methods/mutate-descriptor/exec.js

@@ -1,7 +1,7 @@
 function dec(target, name, descriptor) {
-  assert(target);
-  assert.equal(typeof name, "string");
-  assert.equal(typeof descriptor, "object");
+  expect(target).toBeTruthy();
+  expect(typeof name).toBe("string");
+  expect(typeof descriptor).toBe("object");
 
   target.decoratedProps = (target.decoratedProps || []).concat([name]);
 
@@ -58,8 +58,8 @@ class Example {
   }
 }
 
-assert(Example.hasOwnProperty("decoratedProps"));
-assert.deepEqual(Example.decoratedProps, [
+expect(Example.hasOwnProperty("decoratedProps")).toBeTruthy();
+expect(Example.decoratedProps).toEqual([
   "enumconfwrite",
   "enumconf",
   "enumwrite",
@@ -72,42 +72,42 @@ assert.deepEqual(Example.decoratedProps, [
 
 const descs = Object.getOwnPropertyDescriptors(Example);
 
-assert(descs.enumconfwrite.enumerable);
-assert(descs.enumconfwrite.writable);
-assert(descs.enumconfwrite.configurable);
-assert.equal(Example.enumconfwrite(), "__1__");
+expect(descs.enumconfwrite.enumerable).toBeTruthy();
+expect(descs.enumconfwrite.writable).toBeTruthy();
+expect(descs.enumconfwrite.configurable).toBeTruthy();
+expect(Example.enumconfwrite()).toBe("__1__");
 
-assert(descs.enumconf.enumerable);
-assert.equal(descs.enumconf.writable, false);
-assert(descs.enumconf.configurable);
-assert.equal(Example.enumconf(), "__2__");
+expect(descs.enumconf.enumerable).toBeTruthy();
+expect(descs.enumconf.writable).toBe(false);
+expect(descs.enumconf.configurable).toBeTruthy();
+expect(Example.enumconf()).toBe("__2__");
 
-assert(descs.enumwrite.enumerable);
-assert(descs.enumwrite.writable);
-assert.equal(descs.enumwrite.configurable, false);
-assert.equal(Example.enumwrite(), "__3__");
+expect(descs.enumwrite.enumerable).toBeTruthy();
+expect(descs.enumwrite.writable).toBeTruthy();
+expect(descs.enumwrite.configurable).toBe(false);
+expect(Example.enumwrite()).toBe("__3__");
 
-assert(descs.enum.enumerable);
-assert.equal(descs.enum.writable, false);
-assert.equal(descs.enum.configurable, false);
-assert.equal(Example.enum(), "__4__");
+expect(descs.enum.enumerable).toBeTruthy();
+expect(descs.enum.writable).toBe(false);
+expect(descs.enum.configurable).toBe(false);
+expect(Example.enum()).toBe("__4__");
 
-assert.equal(descs.confwrite.enumerable, false);
-assert(descs.confwrite.writable);
-assert(descs.confwrite.configurable);
-assert.equal(Example.confwrite(), "__5__");
+expect(descs.confwrite.enumerable).toBe(false);
+expect(descs.confwrite.writable).toBeTruthy();
+expect(descs.confwrite.configurable).toBeTruthy();
+expect(Example.confwrite()).toBe("__5__");
 
-assert.equal(descs.conf.enumerable, false);
-assert.equal(descs.conf.writable, false);
-assert(descs.conf.configurable);
-assert.equal(Example.conf(), "__6__");
+expect(descs.conf.enumerable).toBe(false);
+expect(descs.conf.writable).toBe(false);
+expect(descs.conf.configurable).toBeTruthy();
+expect(Example.conf()).toBe("__6__");
 
-assert.equal(descs.write.enumerable, false);
-assert(descs.write.writable);
-assert.equal(descs.write.configurable, false);
-assert.equal(Example.write(), "__7__");
+expect(descs.write.enumerable).toBe(false);
+expect(descs.write.writable).toBeTruthy();
+expect(descs.write.configurable).toBe(false);
+expect(Example.write()).toBe("__7__");
 
-assert.equal(descs._.enumerable, false);
-assert.equal(descs._.writable, false);
-assert.equal(descs._.configurable, false);
-assert.equal(Example._(), "__8__");
+expect(descs._.enumerable).toBe(false);
+expect(descs._.writable).toBe(false);
+expect(descs._.configurable).toBe(false);
+expect(Example._()).toBe("__8__");

packages/babel-plugin-proposal-decorators/test/fixtures/class-static-methods/numeric-props/exec.js

@@ -1,7 +1,7 @@
 function dec(target, name, descriptor){
-  assert(target);
-  assert.equal(name, 4);
-  assert.equal(typeof descriptor, "object");
+  expect(target).toBeTruthy();
+  expect(name).toBe(4);
+  expect(typeof descriptor).toBe("object");
 }
 
 class Example {

packages/babel-plugin-proposal-decorators/test/fixtures/class-static-methods/return-descriptor/exec.js

@@ -1,7 +1,7 @@
 function dec(target, name, descriptor) {
-  assert(target);
-  assert.equal(typeof name, "string");
-  assert.equal(typeof descriptor, "object");
+  expect(target).toBeTruthy();
+  expect(typeof name).toBe("string");
+  expect(typeof descriptor).toBe("object");
 
   target.decoratedProps = (target.decoratedProps || []).concat([name]);
 
@@ -59,8 +59,8 @@ class Example {
 }
 
 
-assert(Example.hasOwnProperty("decoratedProps"));
-assert.deepEqual(Example.decoratedProps, [
+expect(Example.hasOwnProperty("decoratedProps"));
+expect(Example.decoratedProps).toEqual([
   "enumconfwrite",
   "enumconf",
   "enumwrite",
@@ -73,42 +73,42 @@ assert.deepEqual(Example.decoratedProps, [
 
 const descs = Object.getOwnPropertyDescriptors(Example);
 
-assert(descs.enumconfwrite.enumerable);
-assert(descs.enumconfwrite.writable);
-assert(descs.enumconfwrite.configurable);
-assert.equal(Example.enumconfwrite(), "__1__");
+expect(descs.enumconfwrite.enumerable).toBeTruthy();
+expect(descs.enumconfwrite.writable).toBeTruthy();
+expect(descs.enumconfwrite.configurable).toBeTruthy();
+expect(Example.enumconfwrite()).toBe("__1__");
 
-assert(descs.enumconf.enumerable);
-assert.equal(descs.enumconf.writable, false);
-assert(descs.enumconf.configurable);
-assert.equal(Example.enumconf(), "__2__");
+expect(descs.enumconf.enumerable).toBeTruthy();
+expect(descs.enumconf.writable).toBe(false);
+expect(descs.enumconf.configurable).toBeTruthy();
+expect(Example.enumconf()).toBe("__2__");
 
-assert(descs.enumwrite.enumerable);
-assert(descs.enumwrite.writable);
-assert.equal(descs.enumwrite.configurable, false);
-assert.equal(Example.enumwrite(), "__3__");
+expect(descs.enumwrite.enumerable).toBeTruthy();
+expect(descs.enumwrite.writable).toBeTruthy();
+expect(descs.enumwrite.configurable).toBe(false);
+expect(Example.enumwrite()).toBe("__3__");
 
-assert(descs.enum.enumerable);
-assert.equal(descs.enum.writable, false);
-assert.equal(descs.enum.configurable, false);
-assert.equal(Example.enum(), "__4__");
+expect(descs.enum.enumerable).toBeTruthy();
+expect(descs.enum.writable).toBe(false);
+expect(descs.enum.configurable).toBe(false);
+expect(Example.enum()).toBe("__4__");
 
-assert.equal(descs.confwrite.enumerable, false);
-assert(descs.confwrite.writable);
-assert(descs.confwrite.configurable);
-assert.equal(Example.confwrite(), "__5__");
+expect(descs.confwrite.enumerable).toBe(false);
+expect(descs.confwrite.writable).toBeTruthy();
+expect(descs.confwrite.configurable);
+expect(Example.confwrite()).toBe("__5__");
 
-assert.equal(descs.conf.enumerable, false);
-assert.equal(descs.conf.writable, false);
-assert(descs.conf.configurable);
-assert.equal(Example.conf(), "__6__");
+expect(descs.conf.enumerable).toBe(false);
+expect(descs.conf.writable).toBe(false);
+expect(descs.conf.configurable).toBeTruthy();
+expect(Example.conf()).toBe("__6__");
 
-assert.equal(descs.write.enumerable, false);
-assert(descs.write.writable);
-assert.equal(descs.write.configurable, false);
-assert.equal(Example.write(), "__7__");
+expect(descs.write.enumerable).toBe(false);
+expect(descs.write.writable).toBeTruthy();
+expect(descs.write.configurable).toBe(false);
+expect(Example.write()).toBe("__7__");
 
-assert.equal(descs._.enumerable, false);
-assert.equal(descs._.writable, false);
-assert.equal(descs._.configurable, false);
-assert.equal(Example._(), "__8__");
+expect(descs._.enumerable).toBe(false);
+expect(descs._.writable).toBe(false);
+expect(descs._.configurable).toBe(false);
+expect(Example._()).toBe("__8__");

packages/babel-plugin-proposal-decorators/test/fixtures/class-static-methods/string-props/exec.js

@@ -1,7 +1,7 @@
 function dec(target, name, descriptor) {
-  assert(target);
-  assert.equal(name, "str");
-  assert.equal(typeof descriptor, "object");
+  expect(target).toBeTruthy();
+  expect(name).toBe("str");
+  expect(typeof descriptor).toBe("object");
 }
 
 class Example {

packages/babel-plugin-proposal-decorators/test/fixtures/class-static-properties/mutate-descriptor/exec.js

@@ -1,7 +1,7 @@
 function dec(target, name, descriptor) {
-  assert(target);
-  assert.equal(typeof name, "string");
-  assert.equal(typeof descriptor, "object");
+  expect(target).toBeTruthy();
+  expect(typeof name).toBe("string");
+  expect(typeof descriptor).toBe("object");
 
   target.decoratedProps = (target.decoratedProps || []).concat([name]);
 
@@ -44,8 +44,8 @@ class Example {
 
 const inst = new Example();
 
-assert(Example.hasOwnProperty("decoratedProps"));
-assert.deepEqual(Example.decoratedProps, [
+expect(Example.hasOwnProperty("decoratedProps")).toBeTruthy();
+expect(Example.decoratedProps).toEqual([
   "enumconfwrite",
   "enumconf",
   "enumwrite",
@@ -58,42 +58,42 @@ assert.deepEqual(Example.decoratedProps, [
 
 const descs = Object.getOwnPropertyDescriptors(Example);
 
-assert(descs.enumconfwrite.enumerable);
-assert(descs.enumconfwrite.writable);
-assert(descs.enumconfwrite.configurable);
-assert.equal(Example.enumconfwrite, "__1__");
+expect(descs.enumconfwrite.enumerable).toBeTruthy();
+expect(descs.enumconfwrite.writable).toBeTruthy();
+expect(descs.enumconfwrite.configurable).toBeTruthy();
+expect(Example.enumconfwrite).toBe("__1__");
 
-assert(descs.enumconf.enumerable);
-assert.equal(descs.enumconf.writable, false);
-assert(descs.enumconf.configurable);
-assert.equal(Example.enumconf, "__2__");
+expect(descs.enumconf.enumerable).toBeTruthy();
+expect(descs.enumconf.writable).toBe(false);
+expect(descs.enumconf.configurable).toBeTruthy();
+expect(Example.enumconf).toBe("__2__");
 
-assert(descs.enumwrite.enumerable);
-assert(descs.enumwrite.writable);
-assert.equal(descs.enumwrite.configurable, false);
-assert.equal(Example.enumwrite, "__3__");
+expect(descs.enumwrite.enumerable).toBeTruthy();
+expect(descs.enumwrite.writable).toBeTruthy();
+expect(descs.enumwrite.configurable).toBe(false);
+expect(Example.enumwrite).toBe("__3__");
 
-assert(descs.enum.enumerable);
-assert.equal(descs.enum.writable, false);
-assert.equal(descs.enum.configurable, false);
-assert.equal(Example.enum, "__4__");
+expect(descs.enum.enumerable).toBeTruthy();
+expect(descs.enum.writable).toBe(false);
+expect(descs.enum.configurable).toBe(false);
+expect(Example.enum).toBe("__4__");
 
-assert.equal(descs.confwrite.enumerable, false);
-assert(descs.confwrite.writable);
-assert(descs.confwrite.configurable);
-assert.equal(Example.confwrite, "__5__");
+expect(descs.confwrite.enumerable).toBe(false);
+expect(descs.confwrite.writable).toBeTruthy();
+expect(descs.confwrite.configurable).toBeTruthy();
+expect(Example.confwrite).toBe("__5__");
 
-assert.equal(descs.conf.enumerable, false);
-assert.equal(descs.conf.writable, false);
-assert(descs.conf.configurable);
-assert.equal(Example.conf, "__6__");
+expect(descs.conf.enumerable).toBe(false);
+expect(descs.conf.writable).toBe(false);
+expect(descs.conf.configurable).toBeTruthy();
+expect(Example.conf).toBe("__6__");
 
-assert.equal(descs.write.enumerable, false);
-assert(descs.write.writable);
-assert.equal(descs.write.configurable, false);
-assert.equal(Example.write, "__7__");
+expect(descs.write.enumerable).toBe(false);
+expect(descs.write.writable).toBeTruthy();
+expect(descs.write.configurable).toBe(false);
+expect(Example.write).toBe("__7__");
 
-assert.equal(descs._.enumerable, false);
-assert.equal(descs._.writable, false);
-assert.equal(descs._.configurable, false);
-assert.equal(Example._, "__8__");
+expect(descs._.enumerable).toBe(false);
+expect(descs._.writable).toBe(false);
+expect(descs._.configurable).toBe(false);
+expect(Example._).toBe("__8__");

packages/babel-plugin-proposal-decorators/test/fixtures/class-static-properties/mutate-initialzer/exec.js

@@ -1,7 +1,7 @@
 function dec(target, name, descriptor){
-  assert(target);
-  assert.equal(name, "prop");
-  assert.equal(typeof descriptor, "object");
+  expect(target).toBeTruthy();
+  expect(name).toBe("prop");
+  expect(typeof descriptor).toBe("object");
 
   let {initializer} = descriptor;
   delete descriptor.initializer;
@@ -22,4 +22,4 @@ class Example {
   static prop = 3;
 }
 
-assert.equal(Example.prop, "__3__");
+expect(Example.prop).toBe("__3__");

packages/babel-plugin-proposal-decorators/test/fixtures/class-static-properties/properties-without-initializer/exec.js

@@ -6,5 +6,5 @@ class Example {
   @dec static prop;
 }
 
-assert(Example.hasOwnProperty("prop"));
-assert.equal(Example.prop, undefined);
+expect(Example.hasOwnProperty("prop")).toBeTruthy();
+expect(Example.prop).toBe(undefined);

packages/babel-plugin-proposal-decorators/test/fixtures/class-static-properties/return-descriptor/exec.js

@@ -1,7 +1,7 @@
 function dec(target, name, descriptor) {
-  assert(target);
-  assert.equal(typeof name, "string");
-  assert.equal(typeof descriptor, "object");
+  expect(target).toBeTruthy();
+  expect(typeof name).toBe("string");
+  expect(typeof descriptor).toBe("object");
 
   target.decoratedProps = (target.decoratedProps || []).concat([name]);
 
@@ -44,8 +44,8 @@ class Example {
 
 const inst = new Example();
 
-assert(Example.hasOwnProperty("decoratedProps"));
-assert.deepEqual(Example.decoratedProps, [
+expect(Example.hasOwnProperty("decoratedProps")).toBeTruthy();
+expect(Example.decoratedProps).toEqual([
   "enumconfwrite",
   "enumconf",
   "enumwrite",
@@ -58,42 +58,42 @@ assert.deepEqual(Example.decoratedProps, [
 
 const descs = Object.getOwnPropertyDescriptors(Example);
 
-assert(descs.enumconfwrite.enumerable);
-assert(descs.enumconfwrite.writable);
-assert(descs.enumconfwrite.configurable);
-assert.equal(Example.enumconfwrite, "__1__");
+expect(descs.enumconfwrite.enumerable).toBeTruthy();
+expect(descs.enumconfwrite.writable).toBeTruthy();
+expect(descs.enumconfwrite.configurable).toBeTruthy();
+expect(Example.enumconfwrite).toBe("__1__");
 
-assert(descs.enumconf.enumerable);
-assert.equal(descs.enumconf.writable, false);
-assert(descs.enumconf.configurable);
-assert.equal(Example.enumconf, "__2__");
+expect(descs.enumconf.enumerable).toBeTruthy();
+expect(descs.enumconf.writable).toBe(false);
+expect(descs.enumconf.configurable).toBeTruthy();
+expect(Example.enumconf).toBe("__2__");
 
-assert(descs.enumwrite.enumerable);
-assert(descs.enumwrite.writable);
-assert.equal(descs.enumwrite.configurable, false);
-assert.equal(Example.enumwrite, "__3__");
+expect(descs.enumwrite.enumerable).toBeTruthy();
+expect(descs.enumwrite.writable).toBeTruthy();
+expect(descs.enumwrite.configurable).toBe(false);
+expect(Example.enumwrite).toBe("__3__");
 
-assert(descs.enum.enumerable);
-assert.equal(descs.enum.writable, false);
-assert.equal(descs.enum.configurable, false);
-assert.equal(Example.enum, "__4__");
+expect(descs.enum.enumerable).toBeTruthy();
+expect(descs.enum.writable).toBe(false);
+expect(descs.enum.configurable).toBe(false);
+expect(Example.enum).toBe("__4__");
 
-assert.equal(descs.confwrite.enumerable, false);
-assert(descs.confwrite.writable);
-assert(descs.confwrite.configurable);
-assert.equal(Example.confwrite, "__5__");
+expect(descs.confwrite.enumerable).toBe(false);
+expect(descs.confwrite.writable).toBeTruthy();
+expect(descs.confwrite.configurable).toBeTruthy();
+expect(Example.confwrite).toBe("__5__");
 
-assert.equal(descs.conf.enumerable, false);
-assert.equal(descs.conf.writable, false);
-assert(descs.conf.configurable);
-assert.equal(Example.conf, "__6__");
+expect(descs.conf.enumerable).toBe(false);
+expect(descs.conf.writable).toBe(false);
+expect(descs.conf.configurable);
+expect(Example.conf).toBe("__6__");
 
-assert.equal(descs.write.enumerable, false);
-assert(descs.write.writable);
-assert.equal(descs.write.configurable, false);
-assert.equal(Example.write, "__7__");
+expect(descs.write.enumerable).toBe(false);
+expect(descs.write.writable).toBeTruthy();
+expect(descs.write.configurable).toBe(false);
+expect(Example.write).toBe("__7__");
 
-assert.equal(descs._.enumerable, false);
-assert.equal(descs._.writable, false);
-assert.equal(descs._.configurable, false);
-assert.equal(Example._, "__8__");
+expect(descs._.enumerable).toBe(false);
+expect(descs._.writable).toBe(false);
+expect(descs._.configurable).toBe(false);
+expect(Example._).toBe("__8__");

packages/babel-plugin-proposal-decorators/test/fixtures/object-methods/mutate-descriptor/exec.js

@@ -1,7 +1,7 @@
 function dec(target, name, descriptor) {
-  assert(target);
-  assert.equal(typeof name, "string");
-  assert.equal(typeof descriptor, "object");
+  expect(target).toBeTruthy();
+  expect(typeof name).toBe("string");
+  expect(typeof descriptor).toBe("object");
 
   target.decoratedProps = (target.decoratedProps || []).concat([name]);
 
@@ -58,8 +58,8 @@ const inst = {
   },
 }
 
-assert(inst.hasOwnProperty('decoratedProps'));
-assert.deepEqual(inst.decoratedProps, [
+expect(inst.hasOwnProperty('decoratedProps')).toBeTruthy();
+expect(inst.decoratedProps).toEqual([
   "enumconfwrite",
   "enumconf",
   "enumwrite",
@@ -72,42 +72,42 @@ assert.deepEqual(inst.decoratedProps, [
 
 const descs = Object.getOwnPropertyDescriptors(inst);
 
-assert(descs.enumconfwrite.enumerable);
-assert(descs.enumconfwrite.writable);
-assert(descs.enumconfwrite.configurable);
-assert.equal(inst.enumconfwrite(), "__1__");
+expect(descs.enumconfwrite.enumerable).toBeTruthy();
+expect(descs.enumconfwrite.writable).toBeTruthy();
+expect(descs.enumconfwrite.configurable).toBeTruthy();
+expect(inst.enumconfwrite()).toBe("__1__");
 
-assert(descs.enumconf.enumerable);
-assert.equal(descs.enumconf.writable, false);
-assert(descs.enumconf.configurable);
-assert.equal(inst.enumconf(), "__2__");
+expect(descs.enumconf.enumerable).toBeTruthy();
+expect(descs.enumconf.writable).toBe(false);
+expect(descs.enumconf.configurable).toBeTruthy();
+expect(inst.enumconf()).toBe("__2__");
 
-assert(descs.enumwrite.enumerable);
-assert(descs.enumwrite.writable);
-assert.equal(descs.enumwrite.configurable, false);
-assert.equal(inst.enumwrite(), "__3__");
+expect(descs.enumwrite.enumerable).toBeTruthy();
+expect(descs.enumwrite.writable).toBeTruthy();
+expect(descs.enumwrite.configurable).toBe(false);
+expect(inst.enumwrite()).toBe("__3__");
 
-assert(descs.enum.enumerable);
-assert.equal(descs.enum.writable, false);
-assert.equal(descs.enum.configurable, false);
-assert.equal(inst.enum(), "__4__");
+expect(descs.enum.enumerable).toBeTruthy();
+expect(descs.enum.writable).toBe(false);
+expect(descs.enum.configurable).toBe(false);
+expect(inst.enum()).toBe("__4__");
 
-assert.equal(descs.confwrite.enumerable, false);
-assert(descs.confwrite.writable);
-assert(descs.confwrite.configurable);
-assert.equal(inst.confwrite(), "__5__");
+expect(descs.confwrite.enumerable).toBe(false);
+expect(descs.confwrite.writable).toBeTruthy();
+expect(descs.confwrite.configurable);
+expect(inst.confwrite()).toBe("__5__");
 
-assert.equal(descs.conf.enumerable, false);
-assert.equal(descs.conf.writable, false);
-assert(descs.conf.configurable);
-assert.equal(inst.conf(), "__6__");
+expect(descs.conf.enumerable).toBe(false);
+expect(descs.conf.writable).toBe(false);
+expect(descs.conf.configurable).toBeTruthy();
+expect(inst.conf()).toBe("__6__");
 
-assert.equal(descs.write.enumerable, false);
-assert(descs.write.writable);
-assert.equal(descs.write.configurable, false);
-assert.equal(inst.write(), "__7__");
+expect(descs.write.enumerable).toBe(false);
+expect(descs.write.writable).toBeTruthy();
+expect(descs.write.configurable).toBe(false);
+expect(inst.write()).toBe("__7__");
 
-assert.equal(descs._.enumerable, false);
-assert.equal(descs._.writable, false);
-assert.equal(descs._.configurable, false);
-assert.equal(inst._(), "__8__");
+expect(descs._.enumerable).toBe(false);
+expect(descs._.writable).toBe(false);
+expect(descs._.configurable).toBe(false);
+expect(inst._()).toBe("__8__");

packages/babel-plugin-proposal-decorators/test/fixtures/object-methods/numeric-props/exec.js

@@ -1,7 +1,7 @@
 function dec(target, name, descriptor){
-  assert(target);
-  assert.equal(name, 4);
-  assert.equal(typeof descriptor, "object");
+  expect(target).toBeTruthy();
+  expect(name).toBe(4);
+  expect(typeof descriptor).toBe("object");
 }
 
 const inst = {

packages/babel-plugin-proposal-decorators/test/fixtures/object-methods/return-descriptor/exec.js

@@ -1,7 +1,7 @@
 function dec(target, name, descriptor) {
-  assert(target);
-  assert.equal(typeof name, "string");
-  assert.equal(typeof descriptor, "object");
+  expect(target).toBeTruthy();
+  expect(typeof name).toBe("string");
+  expect(typeof descriptor).toBe("object");
 
   target.decoratedProps = (target.decoratedProps || []).concat([name]);
 
@@ -58,8 +58,8 @@ const inst = {
   },
 }
 
-assert(inst.hasOwnProperty('decoratedProps'));
-assert.deepEqual(inst.decoratedProps, [
+expect(inst.hasOwnProperty('decoratedProps')).toBeTruthy();
+expect(inst.decoratedProps).toEqual([
   "enumconfwrite",
   "enumconf",
   "enumwrite",
@@ -72,42 +72,42 @@ assert.deepEqual(inst.decoratedProps, [
 
 const descs = Object.getOwnPropertyDescriptors(inst);
 
-assert(descs.enumconfwrite.enumerable);
-assert(descs.enumconfwrite.writable);
-assert(descs.enumconfwrite.configurable);
-assert.equal(inst.enumconfwrite(), "__1__");
+expect(descs.enumconfwrite.enumerable).toBeTruthy();
+expect(descs.enumconfwrite.writable).toBeTruthy();
+expect(descs.enumconfwrite.configurable).toBeTruthy();
+expect(inst.enumconfwrite()).toBe("__1__");
 
-assert(descs.enumconf.enumerable);
-assert.equal(descs.enumconf.writable, false);
-assert(descs.enumconf.configurable);
-assert.equal(inst.enumconf(), "__2__");
+expect(descs.enumconf.enumerable).toBeTruthy();
+expect(descs.enumconf.writable).toBe(false);
+expect(descs.enumconf.configurable).toBeTruthy();
+expect(inst.enumconf()).toBe("__2__");
 
-assert(descs.enumwrite.enumerable);
-assert(descs.enumwrite.writable);
-assert.equal(descs.enumwrite.configurable, false);
-assert.equal(inst.enumwrite(), "__3__");
+expect(descs.enumwrite.enumerable).toBeTruthy();
+expect(descs.enumwrite.writable).toBeTruthy();
+expect(descs.enumwrite.configurable).toBe(false);
+expect(inst.enumwrite()).toBe("__3__");
 
-assert(descs.enum.enumerable);
-assert.equal(descs.enum.writable, false);
-assert.equal(descs.enum.configurable, false);
-assert.equal(inst.enum(), "__4__");
+expect(descs.enum.enumerable).toBeTruthy();
+expect(descs.enum.writable).toBe(false);
+expect(descs.enum.configurable).toBe(false);
+expect(inst.enum()).toBe("__4__");
 
-assert.equal(descs.confwrite.enumerable, false);
-assert(descs.confwrite.writable);
-assert(descs.confwrite.configurable);
-assert.equal(inst.confwrite(), "__5__");
+expect(descs.confwrite.enumerable).toBe(false);
+expect(descs.confwrite.writable).toBeTruthy();
+expect(descs.confwrite.configurable).toBeTruthy();
+expect(inst.confwrite()).toBe("__5__");
 
-assert.equal(descs.conf.enumerable, false);
-assert.equal(descs.conf.writable, false);
-assert(descs.conf.configurable);
-assert.equal(inst.conf(), "__6__");
+expect(descs.conf.enumerable).toBe(false);
+expect(descs.conf.writable).toBe(false);
+expect(descs.conf.configurable).toBeTruthy();
+expect(inst.conf()).toBe("__6__");
 
-assert.equal(descs.write.enumerable, false);
-assert(descs.write.writable);
-assert.equal(descs.write.configurable, false);
-assert.equal(inst.write(), "__7__");
+expect(descs.write.enumerable).toBe(false);
+expect(descs.write.writable).toBeTruthy();
+expect(descs.write.configurable).toBe(false);
+expect(inst.write()).toBe("__7__");
 
-assert.equal(descs._.enumerable, false);
-assert.equal(descs._.writable, false);
-assert.equal(descs._.configurable, false);
-assert.equal(inst._(), "__8__");
+expect(descs._.enumerable).toBe(false);
+expect(descs._.writable).toBe(false);
+expect(descs._.configurable).toBe(false);
+expect(inst._()).toBe("__8__");

packages/babel-plugin-proposal-decorators/test/fixtures/object-methods/string-props/exec.js

@@ -1,7 +1,7 @@
 function dec(target, name, descriptor){
-  assert(target);
-  assert.equal(name, "str");
-  assert.equal(typeof descriptor, "object");
+  expect(target).toBeTruthy();
+  expect(name).toBe("str");
+  expect(typeof descriptor).toBe("object");
 }
 
 const inst = {

packages/babel-plugin-proposal-decorators/test/fixtures/object-ordering/order/exec.js

@@ -22,4 +22,4 @@ const obj = {
   prop2: 2,
 }
 
-assert.deepEqual(calls, [1, 2, 3, 4, 5, 6, 7, 8]);
+expect(calls).toEqual([1, 2, 3, 4, 5, 6, 7, 8]);

packages/babel-plugin-proposal-decorators/test/fixtures/object-ordering/reverse-order/exec.js

@@ -23,4 +23,4 @@ const obj = {
   prop2: 2,
 }
 
-assert.deepEqual(calls, [1, 2, 3, 4, 5, 6, 7, 8]);
+expect(calls).toEqual([1, 2, 3, 4, 5, 6, 7, 8]);

packages/babel-plugin-proposal-decorators/test/fixtures/object-properties/mutate-descriptor/exec.js

@@ -1,7 +1,7 @@
 function dec(target, name, descriptor) {
-  assert(target);
-  assert.equal(typeof name, "string");
-  assert.equal(typeof descriptor, "object");
+  expect(target).toBeTruthy();
+  expect(typeof name).toBe("string");
+  expect(typeof descriptor).toBe("object");
 
   target.decoratedProps = (target.decoratedProps || []).concat([name]);
 
@@ -43,8 +43,8 @@ const inst = {
 };
 
 
-assert(inst.hasOwnProperty("decoratedProps"));
-assert.deepEqual(inst.decoratedProps, [
+expect(inst.hasOwnProperty("decoratedProps")).toBeTruthy();
+expect(inst.decoratedProps).toEqual([
   "enumconfwrite",
   "enumconf",
   "enumwrite",
@@ -57,42 +57,42 @@ assert.deepEqual(inst.decoratedProps, [
 
 const descs = Object.getOwnPropertyDescriptors(inst);
 
-assert(descs.enumconfwrite.enumerable);
-assert(descs.enumconfwrite.writable);
-assert(descs.enumconfwrite.configurable);
-assert.equal(inst.enumconfwrite, "__1__");
+expect(descs.enumconfwrite.enumerable).toBeTruthy();
+expect(descs.enumconfwrite.writable).toBeTruthy();
+expect(descs.enumconfwrite.configurable).toBeTruthy();
+expect(inst.enumconfwrite).toBe("__1__");
 
-assert(descs.enumconf.enumerable);
-assert.equal(descs.enumconf.writable, false);
-assert(descs.enumconf.configurable);
-assert.equal(inst.enumconf, "__2__");
+expect(descs.enumconf.enumerable).toBeTruthy();
+expect(descs.enumconf.writable).toBe(false);
+expect(descs.enumconf.configurable).toBeTruthy();
+expect(inst.enumconf).toBe("__2__");
 
-assert(descs.enumwrite.enumerable);
-assert(descs.enumwrite.writable);
-assert.equal(descs.enumwrite.configurable, false);
-assert.equal(inst.enumwrite, "__3__");
+expect(descs.enumwrite.enumerable).toBeTruthy();
+expect(descs.enumwrite.writable).toBeTruthy();
+expect(descs.enumwrite.configurable).toBe(false);
+expect(inst.enumwrite).toBe("__3__");
 
-assert(descs.enum.enumerable);
-assert.equal(descs.enum.writable, false);
-assert.equal(descs.enum.configurable, false);
-assert.equal(inst.enum, "__4__");
+expect(descs.enum.enumerable).toBeTruthy();
+expect(descs.enum.writable).toBe(false);
+expect(descs.enum.configurable).toBe(false);
+expect(inst.enum).toBe("__4__");
 
-assert.equal(descs.confwrite.enumerable, false);
-assert(descs.confwrite.writable);
-assert(descs.confwrite.configurable);
-assert.equal(inst.confwrite, "__5__");
+expect(descs.confwrite.enumerable).toBe(false);
+expect(descs.confwrite.writable).toBeTruthy();
+expect(descs.confwrite.configurable).toBeTruthy();
+expect(inst.confwrite).toBe("__5__");
 
-assert.equal(descs.conf.enumerable, false);
-assert.equal(descs.conf.writable, false);
-assert(descs.conf.configurable);
-assert.equal(inst.conf, "__6__");
+expect(descs.conf.enumerable).toBe(false);
+expect(descs.conf.writable).toBe(false);
+expect(descs.conf.configurable).toBeTruthy();
+expect(inst.conf).toBe("__6__");
 
-assert.equal(descs.write.enumerable, false);
-assert(descs.write.writable);
-assert.equal(descs.write.configurable, false);
-assert.equal(inst.write, "__7__");
+expect(descs.write.enumerable).toBe(false);
+expect(descs.write.writable).toBeTruthy();
+expect(descs.write.configurable).toBe(false);
+expect(inst.write).toBe("__7__");
 
-assert.equal(descs._.enumerable, false);
-assert.equal(descs._.writable, false);
-assert.equal(descs._.configurable, false);
-assert.equal(inst._, "__8__");
+expect(descs._.enumerable).toBe(false);
+expect(descs._.writable).toBe(false);
+expect(descs._.configurable).toBe(false);
+expect(inst._).toBe("__8__");

packages/babel-plugin-proposal-decorators/test/fixtures/object-properties/mutate-initialzer/exec.js

@@ -1,7 +1,7 @@
 function dec(target, name, descriptor){
-  assert(target);
-  assert.equal(name, "prop");
-  assert.equal(typeof descriptor, "object");
+  expect(target).toBeTruthy();
+  expect(name).toBe("prop");
+  expect(typeof descriptor).toBe("object");
 
   let {initializer} = descriptor;
   delete descriptor.initializer;
@@ -22,4 +22,4 @@ let inst = {
   prop: 3
 };
 
-assert.equal(inst.prop, "__3__");
+expect(inst.prop).toBe("__3__");

packages/babel-plugin-proposal-decorators/test/fixtures/object-properties/numeric-props/exec.js

@@ -1,7 +1,7 @@
 function dec(target, name, descriptor){
-  assert(target);
-  assert.equal(name, 4);
-  assert.equal(typeof descriptor, "object");
+  expect(target).toBeTruthy();
+  expect(name).toBe(4);
+  expect(typeof descriptor).toBe("object");
 }
 
 const inst = {

packages/babel-plugin-proposal-decorators/test/fixtures/object-properties/return-descriptor/exec.js

@@ -1,7 +1,7 @@
 function dec(target, name, descriptor) {
-  assert(target);
-  assert.equal(typeof name, "string");
-  assert.equal(typeof descriptor, "object");
+  expect(target).toBeTruthy();
+  expect(typeof name).toBe("string");
+  expect(typeof descriptor).toBe("object");
 
   target.decoratedProps = (target.decoratedProps || []).concat([name]);
 
@@ -42,8 +42,8 @@ const inst = {
   _: 8,
 };
 
-assert(inst.hasOwnProperty("decoratedProps"));
-assert.deepEqual(inst.decoratedProps, [
+expect(inst.hasOwnProperty("decoratedProps")).toBeTruthy();
+expect(inst.decoratedProps).toEqual([
   "enumconfwrite",
   "enumconf",
   "enumwrite",
@@ -56,42 +56,42 @@ assert.deepEqual(inst.decoratedProps, [
 
 const descs = Object.getOwnPropertyDescriptors(inst);
 
-assert(descs.enumconfwrite.enumerable);
-assert(descs.enumconfwrite.writable);
-assert(descs.enumconfwrite.configurable);
-assert.equal(inst.enumconfwrite, "__1__");
+expect(descs.enumconfwrite.enumerable).toBeTruthy();
+expect(descs.enumconfwrite.writable).toBeTruthy();
+expect(descs.enumconfwrite.configurable).toBeTruthy();
+expect(inst.enumconfwrite).toBe("__1__");
 
-assert(descs.enumconf.enumerable);
-assert.equal(descs.enumconf.writable, false);
-assert(descs.enumconf.configurable);
-assert.equal(inst.enumconf, "__2__");
+expect(descs.enumconf.enumerable).toBeTruthy();
+expect(descs.enumconf.writable).toBe(false);
+expect(descs.enumconf.configurable).toBeTruthy();
+expect(inst.enumconf).toBe("__2__");
 
-assert(descs.enumwrite.enumerable);
-assert(descs.enumwrite.writable);
-assert.equal(descs.enumwrite.configurable, false);
-assert.equal(inst.enumwrite, "__3__");
+expect(descs.enumwrite.enumerable).toBeTruthy();
+expect(descs.enumwrite.writable).toBeTruthy();
+expect(descs.enumwrite.configurable).toBe(false);
+expect(inst.enumwrite).toBe("__3__");
 
-assert(descs.enum.enumerable);
-assert.equal(descs.enum.writable, false);
-assert.equal(descs.enum.configurable, false);
-assert.equal(inst.enum, "__4__");
+expect(descs.enum.enumerable).toBeTruthy();
+expect(descs.enum.writable).toBe(false);
+expect(descs.enum.configurable).toBe(false);
+expect(inst.enum).toBe("__4__");
 
-assert.equal(descs.confwrite.enumerable, false);
-assert(descs.confwrite.writable);
-assert(descs.confwrite.configurable);
-assert.equal(inst.confwrite, "__5__");
+expect(descs.confwrite.enumerable).toBe(false);
+expect(descs.confwrite.writable).toBeTruthy();
+expect(descs.confwrite.configurable).toBeTruthy();
+expect(inst.confwrite).toBe("__5__");
 
-assert.equal(descs.conf.enumerable, false);
-assert.equal(descs.conf.writable, false);
-assert(descs.conf.configurable);
-assert.equal(inst.conf, "__6__");
+expect(descs.conf.enumerable).toBe(false);
+expect(descs.conf.writable).toBe(false);
+expect(descs.conf.configurable).toBeTruthy();
+expect(inst.conf).toBe("__6__");
 
-assert.equal(descs.write.enumerable, false);
-assert(descs.write.writable);
-assert.equal(descs.write.configurable, false);
-assert.equal(inst.write, "__7__");
+expect(descs.write.enumerable).toBe(false);
+expect(descs.write.writable).toBeTruthy();
+expect(descs.write.configurable).toBe(false);
+expect(inst.write).toBe("__7__");
 
-assert.equal(descs._.enumerable, false);
-assert.equal(descs._.writable, false);
-assert.equal(descs._.configurable, false);
-assert.equal(inst._, "__8__");
+expect(descs._.enumerable).toBe(false);
+expect(descs._.writable).toBe(false);
+expect(descs._.configurable).toBe(false);
+expect(inst._).toBe("__8__");

packages/babel-plugin-proposal-decorators/test/fixtures/object-properties/string-props/exec.js

@@ -1,7 +1,7 @@
 function dec(target, name, descriptor){
-  assert(target);
-  assert.equal(name, "str");
-  assert.equal(typeof descriptor, "object");
+  expect(target).toBeTruthy();
+  expect(name).toBe("str");
+  expect(typeof descriptor).toBe("object");
 }
 
 const inst = {

packages/babel-plugin-proposal-function-bind/test/fixtures/function-bind/complex-call/exec.js

@@ -19,7 +19,7 @@ var lib = {};
 ::lib.g()
 ::lib.h();
 
-assert.deepEqual(operations, [
+expect(operations).toEqual([
   'get lib.f',
   'lib.f()',
   'get lib.g',

packages/babel-plugin-proposal-function-sent/test/fixtures/function-sent/basic/exec.js

@@ -9,5 +9,5 @@ const it = gen();
 it.next(1);
 it.next(2);
 
-assert.equal(sent, 1);
-assert.equal(yielded, 2);
+expect(sent).toBe(1);
+expect(yielded).toBe(2);

packages/babel-plugin-proposal-function-sent/test/fixtures/function-sent/multiple/exec.js

@@ -11,13 +11,13 @@ function* gen() {
 }
 
 const it = gen();
-assert.deepEqual(values, []);
+expect(values).toEqual([]);
 
-assert.equal(it.next(1).value, "foo");
-assert.deepEqual(values, [ 1, 1 ]);
+expect(it.next(1).value).toBe("foo");
+expect(values).toEqual([ 1, 1 ]);
 
-assert.equal(it.next(2).value, undefined);
-assert.deepEqual(values, [ 1, 1, 2, 2 ]);
+expect(it.next(2).value).toBeUndefined();
+expect(values).toEqual([ 1, 1, 2, 2 ]);
 
-assert.equal(it.next(3).done, true);
-assert.deepEqual(values, [ 1, 1, 2, 2, 3, 3, 3 ]);
+expect(it.next(3).done).toBe(true);
+expect(values).toEqual([ 1, 1, 2, 2, 3, 3, 3 ]);

packages/babel-plugin-proposal-logical-assignment-operators/test/fixtures/logical-assignment/general-semantics/exec.js

@@ -1,72 +0,0 @@
-var x = 0;
-var sets = 0;
-var obj = {
-  get x() {
-    return x;
-  },
-
-  set x(value) {
-    sets++;
-    x = value;
-  },
-};
-
-assert.equal(obj.x ||= 1, 1);
-assert.equal(sets, 1);
-assert.equal(obj.x ||= 2, 1);
-assert.equal(sets, 1);
-
-assert.equal(obj.x &&= 0, 0);
-assert.equal(sets, 2);
-assert.equal(obj.x &&= 3, 0);
-assert.equal(sets, 2);
-
-var gets = 0;
-var deep = {
-  get obj() {
-    gets++;
-    return obj;
-  },
-};
-
-assert.equal(deep.obj.x ||= 1, 1);
-assert.equal(gets, 1);
-assert.equal(deep.obj.x ||= 2, 1);
-assert.equal(gets, 2);
-
-assert.equal(deep.obj.x &&= 0, 0);
-assert.equal(gets, 3);
-assert.equal(deep.obj.x &&= 3, 0);
-assert.equal(gets, 4);
-
-var key = 0;
-assert.equal(obj[++key] ||= 1, 1);
-assert.equal(key, 1);
-key = 0;
-assert.equal(obj[++key] ||= 2, 1);
-assert.equal(key, 1);
-
-key = 0;
-assert.equal(obj[++key] &&= 0, 0);
-assert.equal(key, 1);
-key = 0;
-assert.equal(obj[++key] &&= 3, 0);
-assert.equal(key, 1);
-
-key = 0;
-assert.equal(deep.obj[++key] ||= 1, 1);
-assert.equal(gets, 5);
-assert.equal(key, 1);
-key = 0;
-assert.equal(deep.obj[++key] ||= 2, 1);
-assert.equal(gets, 6);
-assert.equal(key, 1);
-
-key = 0;
-assert.equal(deep.obj[++key] &&= 0, 0);
-assert.equal(gets, 7);
-assert.equal(key, 1);
-key = 0;
-assert.equal(deep.obj[++key] &&= 3, 0);
-assert.equal(gets, 8);
-assert.equal(key, 1);

packages/babel-plugin-proposal-logical-assignment-operators/test/fixtures/logical-assignment/general-semantics/input.js

@@ -11,15 +11,15 @@ var obj = {
   },
 };
 
-assert.equal(obj.x ||= 1, 1);
-assert.equal(sets, 1);
-assert.equal(obj.x ||= 2, 1);
-assert.equal(sets, 1);
+expect(obj.x ||= 1).toBe(1);
+expect(sets).toBe(1);
+expect(obj.x ||= 2).toBe(1);
+expect(sets).toBe(1);
 
-assert.equal(obj.x &&= 0, 0);
-assert.equal(sets, 2);
-assert.equal(obj.x &&= 3, 0);
-assert.equal(sets, 2);
+expect(obj.x &&= 0).toBe(0);
+expect(sets).toBe(2);
+expect(obj.x &&= 3).toBe(0);
+expect(sets).toBe(2);
 
 var gets = 0;
 var deep = {
@@ -29,44 +29,44 @@ var deep = {
   },
 };
 
-assert.equal(deep.obj.x ||= 1, 1);
-assert.equal(gets, 1);
-assert.equal(deep.obj.x ||= 2, 1);
-assert.equal(gets, 2);
+expect(deep.obj.x ||= 1).toBe(1);
+expect(gets).toBe(1);
+expect(deep.obj.x ||= 2).toBe(1);
+expect(gets).toBe(2);
 
-assert.equal(deep.obj.x &&= 0, 0);
-assert.equal(gets, 3);
-assert.equal(deep.obj.x &&= 3, 0);
-assert.equal(gets, 4);
+expect(deep.obj.x &&= 0).toBe(0);
+expect(gets).toBe(3);
+expect(deep.obj.x &&= 3).toBe(0);
+expect(gets).toBe(4);
 
 var key = 0;
-assert.equal(obj[++key] ||= 1, 1);
-assert.equal(key, 1);
+expect(obj[++key] ||= 1).toBe(1);
+expect(key).toBe(1);
 key = 0;
-assert.equal(obj[++key] ||= 2, 1);
-assert.equal(key, 1);
+expect(obj[++key] ||= 2).toBe(1);
+expect(key).toBe(1);
 
 key = 0;
-assert.equal(obj[++key] &&= 0, 0);
-assert.equal(key, 1);
+expect(obj[++key] &&= 0).toBe(0);
+expect(key).toBe(1);
 key = 0;
-assert.equal(obj[++key] &&= 3, 0);
-assert.equal(key, 1);
+expect(obj[++key] &&= 3).toBe(0);
+expect(key).toBe(1);
 
 key = 0;
-assert.equal(deep.obj[++key] ||= 1, 1);
-assert.equal(gets, 5);
-assert.equal(key, 1);
+expect(deep.obj[++key] ||= 1).toBe(1);
+expect(gets).toBe(5);
+expect(key).toBe(1);
 key = 0;
-assert.equal(deep.obj[++key] ||= 2, 1);
-assert.equal(gets, 6);
-assert.equal(key, 1);
+expect(deep.obj[++key] ||= 2).toBe(1);
+expect(gets).toBe(6);
+expect(key).toBe(1);
 
 key = 0;
-assert.equal(deep.obj[++key] &&= 0, 0);
-assert.equal(gets, 7);
-assert.equal(key, 1);
+expect(deep.obj[++key] &&= 0).toBe(0);
+expect(gets).toBe(7);
+expect(key).toBe(1);
 key = 0;
-assert.equal(deep.obj[++key] &&= 3, 0);
-assert.equal(gets, 8);
-assert.equal(key, 1);
+expect(deep.obj[++key] &&= 3).toBe(0);
+expect(gets).toBe(8);
+expect(key).toBe(1);

packages/babel-plugin-proposal-logical-assignment-operators/test/fixtures/logical-assignment/general-semantics/output.js

@@ -13,14 +13,14 @@ var obj = {
   }
 
 };
-assert.equal(obj.x || (obj.x = 1), 1);
-assert.equal(sets, 1);
-assert.equal(obj.x || (obj.x = 2), 1);
-assert.equal(sets, 1);
-assert.equal(obj.x && (obj.x = 0), 0);
-assert.equal(sets, 2);
-assert.equal(obj.x && (obj.x = 3), 0);
-assert.equal(sets, 2);
+expect(obj.x || (obj.x = 1)).toBe(1);
+expect(sets).toBe(1);
+expect(obj.x || (obj.x = 2)).toBe(1);
+expect(sets).toBe(1);
+expect(obj.x && (obj.x = 0)).toBe(0);
+expect(sets).toBe(2);
+expect(obj.x && (obj.x = 3)).toBe(0);
+expect(sets).toBe(2);
 var gets = 0;
 var deep = {
   get obj() {
@@ -29,39 +29,39 @@ var deep = {
   }
 
 };
-assert.equal((_deep$obj = deep.obj).x || (_deep$obj.x = 1), 1);
-assert.equal(gets, 1);
-assert.equal((_deep$obj2 = deep.obj).x || (_deep$obj2.x = 2), 1);
-assert.equal(gets, 2);
-assert.equal((_deep$obj3 = deep.obj).x && (_deep$obj3.x = 0), 0);
-assert.equal(gets, 3);
-assert.equal((_deep$obj4 = deep.obj).x && (_deep$obj4.x = 3), 0);
-assert.equal(gets, 4);
+expect((_deep$obj = deep.obj).x || (_deep$obj.x = 1)).toBe(1);
+expect(gets).toBe(1);
+expect((_deep$obj2 = deep.obj).x || (_deep$obj2.x = 2)).toBe(1);
+expect(gets).toBe(2);
+expect((_deep$obj3 = deep.obj).x && (_deep$obj3.x = 0)).toBe(0);
+expect(gets).toBe(3);
+expect((_deep$obj4 = deep.obj).x && (_deep$obj4.x = 3)).toBe(0);
+expect(gets).toBe(4);
 var key = 0;
-assert.equal(obj[_ref = ++key] || (obj[_ref] = 1), 1);
-assert.equal(key, 1);
+expect(obj[_ref = ++key] || (obj[_ref] = 1)).toBe(1);
+expect(key).toBe(1);
 key = 0;
-assert.equal(obj[_ref2 = ++key] || (obj[_ref2] = 2), 1);
-assert.equal(key, 1);
+expect(obj[_ref2 = ++key] || (obj[_ref2] = 2)).toBe(1);
+expect(key).toBe(1);
 key = 0;
-assert.equal(obj[_ref3 = ++key] && (obj[_ref3] = 0), 0);
-assert.equal(key, 1);
+expect(obj[_ref3 = ++key] && (obj[_ref3] = 0)).toBe(0);
+expect(key).toBe(1);
 key = 0;
-assert.equal(obj[_ref4 = ++key] && (obj[_ref4] = 3), 0);
-assert.equal(key, 1);
+expect(obj[_ref4 = ++key] && (obj[_ref4] = 3)).toBe(0);
+expect(key).toBe(1);
 key = 0;
-assert.equal((_deep$obj5 = deep.obj)[_ref5 = ++key] || (_deep$obj5[_ref5] = 1), 1);
-assert.equal(gets, 5);
-assert.equal(key, 1);
+expect((_deep$obj5 = deep.obj)[_ref5 = ++key] || (_deep$obj5[_ref5] = 1)).toBe(1);
+expect(gets).toBe(5);
+expect(key).toBe(1);
 key = 0;
-assert.equal((_deep$obj6 = deep.obj)[_ref6 = ++key] || (_deep$obj6[_ref6] = 2), 1);
-assert.equal(gets, 6);
-assert.equal(key, 1);
+expect((_deep$obj6 = deep.obj)[_ref6 = ++key] || (_deep$obj6[_ref6] = 2)).toBe(1);
+expect(gets).toBe(6);
+expect(key).toBe(1);
 key = 0;
-assert.equal((_deep$obj7 = deep.obj)[_ref7 = ++key] && (_deep$obj7[_ref7] = 0), 0);
-assert.equal(gets, 7);
-assert.equal(key, 1);
+expect((_deep$obj7 = deep.obj)[_ref7 = ++key] && (_deep$obj7[_ref7] = 0)).toBe(0);
+expect(gets).toBe(7);
+expect(key).toBe(1);
 key = 0;
-assert.equal((_deep$obj8 = deep.obj)[_ref8 = ++key] && (_deep$obj8[_ref8] = 3), 0);
-assert.equal(gets, 8);
-assert.equal(key, 1);
+expect((_deep$obj8 = deep.obj)[_ref8 = ++key] && (_deep$obj8[_ref8] = 3)).toBe(0);
+expect(gets).toBe(8);
+expect(key).toBe(1);

packages/babel-plugin-proposal-nullish-coalescing-operator/test/fixtures/nullish-coalescing/runtime-semantics/exec.js

@@ -1,19 +1,19 @@
-assert.equal(null ?? undefined, undefined);
-assert.equal(undefined ?? null, null);
-assert.equal(false ?? true, false);
-assert.equal(0 ?? 1, 0);
-assert.equal("" ?? "foo", "");
+expect(null ?? undefined).toBeUndefined(undefined);
+expect(undefined ?? null).toBeNull();
+expect(false ?? true).toBe(false);
+expect(0 ?? 1).toBe(0);
+expect("" ?? "foo").toBe("");
 
 var obj = { exists: true };
-assert.equal(obj.exists ?? false, true);
-assert.equal(obj.doesNotExist ?? "foo", "foo");
+expect(obj.exists ?? false).toBe(true);
+expect(obj.doesNotExist ?? "foo").toBe("foo");
 
 var counter = 0;
 function sideEffect() { return counter++; }
-assert.equal(sideEffect() ?? -1, 0);
+expect(sideEffect() ?? -1).toBe(0);
 
 var counter2 = 0;
 var obj2 = {
     get foo() { return counter2++; }
 };
-assert.equal(obj2.foo ?? -1, 0);
+expect(obj2.foo ?? -1).toBe(0);

packages/babel-plugin-proposal-numeric-separator/test/fixtures/number/exec.js

@@ -1,19 +1,19 @@
-assert.equal(Number("1_000"), Number("1000"));
-assert.equal(Number("0xAE_BE_CE"), Number("0xAEBECE"));
-assert.equal(Number("0b1010_0001_1000_0101"), Number("0b1010000110000101"));
-assert.equal(Number("0o0_6_6_6"), Number("0o0666"));
+expect(Number("1_000")).toBe(Number("1000"));
+expect(Number("0xAE_BE_CE")).toBe(Number("0xAEBECE"));
+expect(Number("0b1010_0001_1000_0101")).toBe(Number("0b1010000110000101"));
+expect(Number("0o0_6_6_6")).toBe(Number("0o0666"));
 
-assert.equal(new Number("1_000").valueOf(), new Number("1000").valueOf());
-assert.equal(new Number("0xAE_BE_CE").valueOf(), new Number("0xAEBECE").valueOf());
-assert.equal(new Number("0b1010_0001_1000_0101").valueOf(), new Number("0b1010000110000101").valueOf());
-assert.equal(new Number("0o0_6_6_6").valueOf(), new Number("0o0666").valueOf());
+expect(new Number("1_000").valueOf()).toBe(new Number("1000").valueOf());
+expect(new Number("0xAE_BE_CE").valueOf()).toBe(new Number("0xAEBECE").valueOf());
+expect(new Number("0b1010_0001_1000_0101").valueOf()).toBe(new Number("0b1010000110000101").valueOf());
+expect(new Number("0o0_6_6_6").valueOf()).toBe(new Number("0o0666").valueOf());
 
-assert.equal(Number(1_000), Number("1000"));
-assert.equal(Number(0xAE_BE_CE), Number("0xAEBECE"));
-assert.equal(Number(0b1010_0001_1000_0101), Number("0b1010000110000101"));
-assert.equal(Number(0o0_6_6_6), Number("0o0666"));
+expect(Number(1_000)).toBe(Number("1000"));
+expect(Number(0xAE_BE_CE)).toBe(Number("0xAEBECE"));
+expect(Number(0b1010_0001_1000_0101)).toBe(Number("0b1010000110000101"));
+expect(Number(0o0_6_6_6)).toBe(Number("0o0666"));
 
-assert.equal(new Number(1_000).valueOf(), new Number("1000").valueOf());
-assert.equal(new Number(0xAE_BE_CE).valueOf(), new Number("0xAEBECE").valueOf());
-assert.equal(new Number(0b1010_0001_1000_0101).valueOf(), new Number("0b1010000110000101").valueOf());
-assert.equal(new Number(0o0_6_6_6).valueOf(), new Number("0o0666").valueOf());
+expect(new Number(1_000).valueOf()).toBe(new Number("1000").valueOf());
+expect(new Number(0xAE_BE_CE).valueOf()).toBe(new Number("0xAEBECE").valueOf());
+expect(new Number(0b1010_0001_1000_0101).valueOf()).toBe(new Number("0b1010000110000101").valueOf());
+expect(new Number(0o0_6_6_6).valueOf()).toBe(new Number("0o0666").valueOf());

packages/babel-plugin-proposal-numeric-separator/test/fixtures/removal/exec.js

@@ -1,4 +1,4 @@
-assert.equal(1_000, 1000);
-assert.equal(0xAE_BE_CE, 0xAEBECE);
-assert.equal(0b1010_0001_1000_0101, 0b1010000110000101);
-assert.equal(0o0_6_6_6, 0o0666);
+expect(1_000).toBe(1000);
+expect(0xAE_BE_CE).toBe(0xAEBECE);
+expect(0b1010_0001_1000_0101).toBe(0b1010000110000101);
+expect(0o0_6_6_6).toBe(0o0666);

packages/babel-plugin-proposal-numeric-separator/test/fixtures/used-with-transform-es2015-literals/exec.js

@@ -1,4 +1,4 @@
-assert.equal(1_000, 1000);
-assert.equal(0xAE_BE_CE, 11452110);
-assert.equal(0b1010_0001_1000_0101, 41349);
-assert.equal(0o0_6_6_6, 438);
+expect(1_000).toBe(1000);
+expect(0xAE_BE_CE).toBe(11452110);
+expect(0b1010_0001_1000_0101).toBe(41349);
+expect(0o0_6_6_6).toBe(438);

packages/babel-plugin-proposal-object-rest-spread/test/fixtures/object-rest/impure-computed-exec/exec.js

@@ -2,20 +2,20 @@ var key, x, y, z;
 // impure
 key = 1;
 var { [key++]: y, ...x } = { 1: 1, a: 1 };
-assert.deepEqual({ a: 1 }, x);
-assert.equal(key, 2);
-assert.equal(1, y);
+expect(x).toEqual({ a: 1 });
+expect(key).toBe(2);
+expect(1).toBe(y);
 
 // takes care of the order
 
 key = 1;
 var { [++key]: y, [++key]: z, ...rest} = {2: 2, 3: 3};
-assert.equal(y, 2);
-assert.equal(z, 3);
+expect(y).toBe(2);
+expect(z).toBe(3);
 
 // pure, computed property should remain as-is
 key = 2;
 ({ [key]: y, z, ...x } = {2: "two", z: "zee"});
-assert.equal(y, "two");
-assert.deepEqual(x, {});
-assert.equal(z, "zee");
+expect(y).toBe("two");
+expect(x).toEqual({});
+expect(z).toBe("zee");

packages/babel-plugin-proposal-object-rest-spread/test/fixtures/object-rest/impure-computed/input.js

@@ -2,20 +2,20 @@ var key, x, y, z;
 // impure
 key = 1;
 var { [key++]: y, ...x } = { 1: 1, a: 1 };
-assert.deepEqual({ a: 1 }, x);
-assert.equal(key, 2);
-assert.equal(1, y);
+expect(x).toEqual({ a: 1 });
+expect(key).toBe(2);
+expect(y).toBe(1);
 
 // takes care of the order
 
 key = 1;
 var { [++key]: y, [++key]: z, ...rest} = {2: 2, 3: 3};
-assert.equal(y, 2);
-assert.equal(z, 3);
+expect(y).toBe(2);
+expect(z).toBe(3);
 
 // pure, computed property should remain as-is
 key = 2;
 ({ [key]: y, z, ...x } = {2: "two", z: "zee"});
-assert.equal(y, "two");
-assert.deepEqual(x, {});
-assert.equal(z, "zee");
+expect(y).toBe("two");
+expect(x).toEqual({});
+expect(z).toBe("zee");

packages/babel-plugin-proposal-object-rest-spread/test/fixtures/object-rest/impure-computed/output.js

@@ -12,11 +12,11 @@ var _$a = {
 } = _$a,
     x = babelHelpers.objectWithoutProperties(_$a, [_ref].map(babelHelpers.toPropertyKey));
 
-assert.deepEqual({
+expect(x).toEqual({
   a: 1
-}, x);
-assert.equal(key, 2);
-assert.equal(1, y); // takes care of the order
+});
+expect(key).toBe(2);
+expect(y).toBe(1); // takes care of the order
 
 key = 1;
 
@@ -32,8 +32,8 @@ var _$ = {
 } = _$,
     rest = babelHelpers.objectWithoutProperties(_$, [_ref2, _ref3].map(babelHelpers.toPropertyKey));
 
-assert.equal(y, 2);
-assert.equal(z, 3); // pure, computed property should remain as-is
+expect(y).toBe(2);
+expect(z).toBe(3); // pure, computed property should remain as-is
 
 key = 2;
 var _$z = {
@@ -46,6 +46,6 @@ var _$z = {
 } = _$z);
 x = babelHelpers.objectWithoutProperties(_$z, [key, "z"].map(babelHelpers.toPropertyKey));
 _$z;
-assert.equal(y, "two");
-assert.deepEqual(x, {});
-assert.equal(z, "zee");
+expect(y).toBe("two");
+expect(x).toEqual({});
+expect(z).toBe("zee");

packages/babel-plugin-proposal-object-rest-spread/test/fixtures/object-rest/nested-order/exec.js

@@ -18,4 +18,4 @@ var obj = {
 
 var { a: { ...bar }, b: { ...baz }, ...foo } = obj;
 
-assert.strictEqual(result, "barbazfoo");
+expect(result).toBe("barbazfoo");

packages/babel-plugin-proposal-object-rest-spread/test/fixtures/object-rest/non-string-computed-exec/exec.js

@@ -8,8 +8,8 @@ const {
   ...rest
 } = a;
 
-assert.deepEqual(rest, {"foo": "bar"});
-assert.equal(omit, "three");
+expect(rest).toEqual({"foo": "bar"});
+expect(omit).toBe("three");
 
 const [k1, k2, k3, k4, k5] = [null, undefined, true, false, {toString() { return "warrior"; }}];
 const c = {
@@ -29,12 +29,12 @@ const {
   ...vrest
 } = c;
 
-assert.equal(v1, "1");
-assert.equal(v2, "2");
-assert.equal(v3, "3");
-assert.equal(v4, "4");
-assert.equal(v5, "5");
-assert.deepEqual(vrest, {});
+expect(v1).toBe("1");
+expect(v2).toBe("2");
+expect(v3).toBe("3");
+expect(v4).toBe("4");
+expect(v5).toBe("5");
+expect(vrest).toEqual({});
 
 // shouldn't convert symbols to strings
 const sx = Symbol();
@@ -50,5 +50,5 @@ const {
   [sy]: dy
 } = d;
 
-assert.equal(dx, "sx");
-assert.equal(dy, "sy");
+expect(dx).toBe("sx");
+expect(dy).toBe("sy");

packages/babel-plugin-proposal-object-rest-spread/test/fixtures/object-rest/non-string-computed/input.js

@@ -8,8 +8,8 @@ const {
   ...rest
 } = a;
 
-assert.deepEqual(rest, {"foo": "bar"});
-assert.equal(omit, "three");
+expect(rest).toEqual({"foo": "bar"});
+expect(omit).toBe("three");
 
 const [k1, k2, k3, k4, k5] = [null, undefined, true, false, {toString() { return "warrior"; }}];
 const c = {
@@ -29,12 +29,12 @@ const {
   ...vrest
 } = c;
 
-assert.equal(v1, "1");
-assert.equal(v2, "2");
-assert.equal(v3, "3");
-assert.equal(v4, "4");
-assert.equal(v5, "5");
-assert.deepEqual(vrest, {});
+expect(v1).toBe("1");
+expect(v2).toBe("2");
+expect(v3).toBe("3");
+expect(v4).toBe("4");
+expect(v5).toBe("5");
+expect(vrest).toEqual({});
 
 // shouldn't convert symbols to strings
 const sx = Symbol();
@@ -50,5 +50,5 @@ const {
   [sy]: dy
 } = d;
 
-assert.equal(dx, "sx");
-assert.equal(dy, "sy");
+expect(dx).toBe("sx");
+expect(dy).toBe("sy");

packages/babel-plugin-proposal-object-rest-spread/test/fixtures/object-rest/non-string-computed/output.js

@@ -6,10 +6,10 @@ const {
   [3]: omit
 } = a,
       rest = babelHelpers.objectWithoutProperties(a, ["3"]);
-assert.deepEqual(rest, {
+expect(rest).toEqual({
   "foo": "bar"
 });
-assert.equal(omit, "three");
+expect(omit).toBe("three");
 const [k1, k2, k3, k4, k5] = [null, undefined, true, false, {
   toString() {
     return "warrior";
@@ -31,12 +31,12 @@ const {
   [k5]: v5
 } = c,
       vrest = babelHelpers.objectWithoutProperties(c, [k1, k2, k3, k4, k5].map(babelHelpers.toPropertyKey));
-assert.equal(v1, "1");
-assert.equal(v2, "2");
-assert.equal(v3, "3");
-assert.equal(v4, "4");
-assert.equal(v5, "5");
-assert.deepEqual(vrest, {}); // shouldn't convert symbols to strings
+expect(v1).toBe("1");
+expect(v2).toBe("2");
+expect(v3).toBe("3");
+expect(v4).toBe("4");
+expect(v5).toBe("5");
+expect(vrest).toEqual({}); // shouldn't convert symbols to strings
 
 const sx = Symbol();
 const sy = Symbol();
@@ -48,5 +48,5 @@ const {
   [sx]: dx,
   [sy]: dy
 } = d;
-assert.equal(dx, "sx");
-assert.equal(dy, "sy");
+expect(dx).toBe("sx");
+expect(dy).toBe("sy");

packages/babel-plugin-proposal-object-rest-spread/test/fixtures/object-rest/symbol-exec/exec.js

@@ -8,13 +8,13 @@ Object.defineProperty(src, sym2, { value: "not enumerable" });
 
 const {...rest} = src;
 
-assert.strictEqual(rest[sym], "symbol");
-assert.strictEqual(rest.a, "string");
-assert.deepEqual(Object.getOwnPropertyNames(rest), ["a"]);
-assert.deepEqual(Object.getOwnPropertySymbols(rest), [sym]);
+expect(rest[sym]).toBe("symbol");
+expect(rest.a).toBe("string");
+expect(Object.getOwnPropertyNames(rest)).toEqual(["a"]);
+expect(Object.getOwnPropertySymbols(rest)).toEqual([sym]);
 
 const { [sym]: dst, ...noSym } = src;
 
-assert.strictEqual(dst, "symbol");
-assert.strictEqual(noSym.a, "string");
-assert.deepEqual(Object.getOwnPropertySymbols(noSym), []);
+expect(dst).toBe("symbol");
+expect(noSym.a).toBe("string");
+expect(Object.getOwnPropertySymbols(noSym)).toEqual([]);

packages/babel-plugin-proposal-object-rest-spread/test/fixtures/object-spread/no-object-assign-exec/exec.js

@@ -20,21 +20,21 @@ const obj2 = { NOSET: 123, NOWRITE: 456 };
 // (spread defines them)
 const obj2Spread = { ...obj2 };
 
-assert.deepEqual(obj, objSpread);
-assert.deepEqual(obj2, obj2Spread);
+expect(objSpread).toEqual(obj);
+expect(obj2Spread).toEqual(obj2);
 
 const KEY = Symbol('key');
 const obj3Spread = { ...{ get foo () { return 'bar' } }, [KEY]: 'symbol' };
-assert.equal(Object.getOwnPropertyDescriptor(obj3Spread, 'foo').value, 'bar');
-assert.equal(Object.getOwnPropertyDescriptor(obj3Spread, KEY).value, 'symbol');
+expect(Object.getOwnPropertyDescriptor(obj3Spread, 'foo').value).toBe('bar');
+expect(Object.getOwnPropertyDescriptor(obj3Spread, KEY).value).toBe('symbol');
 
 const obj4Spread = { ...Object.prototype };
-assert.isUndefined(Object.getOwnPropertyDescriptor(obj4Spread, 'hasOwnProperty'));
+expect(Object.getOwnPropertyDescriptor(obj4Spread, 'hasOwnProperty')).toBeUndefined();
 
-assert.doesNotThrow(() => ({ ...null, ...undefined }));
+expect(() => ({ ...null, ...undefined })).not.toThrow();
 
 const o = Object.create(null);
 o.a = 'foo';
 o.__proto__ = [];
 const o2 = { ...o };
-assert.equal(false, Array.isArray(Object.getPrototypeOf(o2)));
+expect(Array.isArray(Object.getPrototypeOf(o2))).toBe(false);

packages/babel-plugin-proposal-optional-chaining/test/fixtures/general/assignment/exec.js

@@ -11,18 +11,18 @@ const obj = {
 };
 
 const a = obj?.a;
-assert.equal(a, obj.a);
+expect(a).toBe(obj.a);
 
 const b = obj?.a?.b;
-assert.equal(b, obj.a.b);
+expect(b).toBe(obj.a.b);
 
 const bad = obj?.b?.b;
-assert.equal(bad, undefined);
+expect(bad).toBeUndefined();
 
 let val;
 val = obj?.a?.b;
-assert.equal(val, obj.a.b);
+expect(val).toBe(obj.a.b);
 
-assert.throws(() => {
+expect(() => {
   const bad = obj?.b.b;
-});
+}).toThrow();

packages/babel-plugin-proposal-optional-chaining/test/fixtures/general/delete/exec.js

@@ -7,16 +7,16 @@ const obj = {
 };
 
 let test = delete obj?.a?.b;
-assert.equal(obj.a.b, undefined);
-assert.equal(test, true);
+expect(obj.a.b).toBeUndefined();
+expect(test).toBe(true);
 
 test = delete obj?.a.b;
-assert.equal(obj.a.b, undefined);
-assert.equal(test, true);
+expect(obj.a.b).toBeUndefined();
+expect(test).toBe(true);
 
 test = delete obj?.b?.b;
-assert.equal(obj.b, undefined);
-assert.equal(test, undefined);
+expect(obj.b).toBeUndefined();
+expect(test).toBeUndefined();
 
 delete obj?.a;
-assert.equal(obj.a, undefined);
+expect(obj.a).toBeUndefined();

packages/babel-plugin-proposal-optional-chaining/test/fixtures/general/unary/exec.js

@@ -7,13 +7,13 @@ const obj = {
 };
 
 let test = +obj?.a?.b;
-assert.equal(test, 0);
+expect(test).toBe(0);
 
 test = +obj?.a.b;
-assert.equal(test, 0);
+expect(test).toBe(0);
 
 test = +obj?.b?.b;
-assert.isNaN(test);
+expect(test).toBe(NaN);
 
 test = +obj?.b?.b;
-assert.isNaN(test);
+expect(test).toBe(NaN);

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/pipeline-operator/arrow-functions/exec.js

@@ -3,7 +3,7 @@ var result = [5,10]
   |> _ => _.reduce( (a,b) => a + b )
   |> sum => sum + 1
 
-assert.equal(result, 31)
+expect(result).toBe(31);
 
 
 var inc = (x) => x + 1;
@@ -11,4 +11,4 @@ var double = (x) => x * 2;
 
 var result2 = [4, 9].map( x => x |> inc |> double )
 
-assert.deepEqual(result2, [10, 20])
+expect(result2).toEqual([10, 20]);

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/pipeline-operator/arrow-functions/input.js

@@ -3,7 +3,7 @@ var result = [5,10]
   |> _ => _.reduce( (a,b) => a + b )
   |> sum => sum + 1
 
-assert.equal(result, 31)
+expect(result).toBe(31);
 
 
 var inc = (x) => x + 1;
@@ -11,4 +11,4 @@ var double = (x) => x * 2;
 
 var result2 = [4, 9].map( x => x |> inc |> double )
 
-assert.deepEqual(result2, [10, 20])
+expect(result2).toEqual([10, 20]);

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/pipeline-operator/arrow-functions/output.js

@@ -1,7 +1,7 @@
 var _ref, _ref2, _sum;
 
 var result = (_ref = [5, 10], (_ref2 = _ref.map(x => x * 2), (_sum = _ref2.reduce((a, b) => a + b), _sum + 1)));
-assert.equal(result, 31);
+expect(result).toBe(31);
 
 var inc = x => x + 1;
 
@@ -12,4 +12,4 @@ var result2 = [4, 9].map(x => {
 
   return _ref3 = (_x = x, inc(_x)), double(_ref3);
 });
-assert.deepEqual(result2, [10, 20]);
+expect(result2).toEqual([10, 20]);

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/pipeline-operator/async-arrow/exec.js

@@ -9,5 +9,5 @@ var result = 1
   |> then((x) => x + 1);
 
 result.then(val => {
-  assert.equal(val, 3);
+  expect(val).toBe(3);
 });

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/pipeline-operator/async-arrow/input.js

@@ -9,5 +9,5 @@ var result = 1
   |> then((x) => x + 1);
 
 result.then(val => {
-  assert.equal(val, 3);
+  expect(val).toBe(3);
 });

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/pipeline-operator/async-arrow/output.js

@@ -8,5 +8,5 @@ function then(fn) {
 
 var result = (_ref = (_ = 1, (async x => (await x) + 1)(_)), then(x => x + 1)(_ref));
 result.then(val => {
-  assert.equal(val, 3);
+  expect(val).toBe(3);
 });

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/pipeline-operator/basic/exec.js

@@ -1,3 +1,3 @@
 var inc = (x) => x + 1
 
-assert.equal(10 |> inc, 11);
+expect(10 |> inc).toBe(11);

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/pipeline-operator/basic/input.js

@@ -1,3 +1,3 @@
 var inc = (x) => x + 1
 
-assert.equal(10 |> inc, 11);
+expect(10 |> inc).toBe(11);

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/pipeline-operator/basic/output.js

@@ -2,4 +2,4 @@ var _;
 
 var inc = x => x + 1;
 
-assert.equal((_ = 10, inc(_)), 11);
+expect((_ = 10, inc(_))).toBe(11);

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/pipeline-operator/chaining/exec.js

@@ -1,4 +1,4 @@
 var inc = (x) => x + 1;
 var double = (x) => x * 2;
 
-assert.equal(10 |> inc |> double, 22);
+expect(10 |> inc |> double).toBe(22);

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/pipeline-operator/chaining/input.js

@@ -1,4 +1,4 @@
 var inc = (x) => x + 1;
 var double = (x) => x * 2;
 
-assert.equal(10 |> inc |> double, 22);
+expect(10 |> inc |> double).toBe(22);

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/pipeline-operator/chaining/output.js

@@ -4,4 +4,4 @@ var inc = x => x + 1;
 
 var double = x => x * 2;
 
-assert.equal((_ref = (_ = 10, inc(_)), double(_ref)), 22);
+expect((_ref = (_ = 10, inc(_)), double(_ref))).toBe(22);

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/pipeline-operator/currying/exec.js

@@ -3,4 +3,4 @@ var map = (fn) => (array) => array.map(fn);
 
 var result = [10,20] |> map(x => x * 20);
 
-assert.deepEqual(result, [200, 400])
+expect(result).toEqual([200, 400]);

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/pipeline-operator/currying/input.js

@@ -3,4 +3,4 @@ var map = (fn) => (array) => array.map(fn);
 
 var result = [10,20] |> map(x => x * 20);
 
-assert.deepEqual(result, [200, 400])
+expect(result).toEqual([200, 400]);

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/pipeline-operator/currying/output.js

@@ -3,4 +3,4 @@ var _ref;
 var map = fn => array => array.map(fn);
 
 var result = (_ref = [10, 20], map(x => x * 20)(_ref));
-assert.deepEqual(result, [200, 400]);
+expect(result).toEqual([200, 400]);

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/pipeline-operator/deoptimize-multi-param-arrow/exec.js

@@ -5,4 +5,4 @@ var result = a
   |> (a, b) => b
   |> (a, b) => c;
 
-assert.equal(result, c)
+expect(result).toBe(c);

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/pipeline-operator/deoptimize-multi-param-arrow/input.js

@@ -5,4 +5,4 @@ var result = a
   |> (a, b) => b
   |> (a, b) => c;
 
-assert.equal(result, c)
+expect(result).toBe(c);

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/pipeline-operator/deoptimize-multi-param-arrow/output.js

@@ -8,4 +8,4 @@ var result = (_a = a, ((a, b) => {
 
   return _b = b, ((a, b) => c)(_b);
 })(_a));
-assert.equal(result, c);
+expect(result).toBe(c);

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/pipeline-operator/destructure-arrow-param/exec.js

@@ -1,7 +1,7 @@
 // Array destructing
 const result = [0] |> ([x]) => x;
-assert.equal(result, 0);
+expect(result).toBe(0);
 
 // Object destructuring
 const result2 = { y: 1, z: 2 } |> ({ y, z }) => y + z;
-assert.equal(result2, 3);
+expect(result2).toBe(3);

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/pipeline-operator/destructure-arrow-param/input.js

@@ -1,7 +1,7 @@
 // Array destructing
 const result = [0] |> ([x]) => x;
-assert.equal(result, 0);
+expect(result).toBe(0);
 
 // Object destructuring
 const result2 = { y: 1, z: 2 } |> ({ y, z }) => y + z;
-assert.equal(result, 3);
+expect(result).toBe(3);

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/pipeline-operator/destructure-arrow-param/output.js

@@ -2,7 +2,7 @@ var _ref, _y$z;
 
 // Array destructing
 const result = (_ref = [0], (([x]) => x)(_ref));
-assert.equal(result, 0); // Object destructuring
+expect(result).toBe(0); // Object destructuring
 
 const result2 = (_y$z = {
   y: 1,
@@ -11,4 +11,4 @@ const result2 = (_y$z = {
   y,
   z
 }) => y + z)(_y$z));
-assert.equal(result, 3);
+expect(result).toBe(3);

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/pipeline-operator/evaluation/exec.js

@@ -10,4 +10,4 @@ var obj = {
 }
 
 var result = obj.prop |> obj.method;
-assert.equal(result, 1);
+expect(result).toBe(1);

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/pipeline-operator/evaluation/input.js

@@ -10,4 +10,4 @@ var obj = {
 }
 
 var result = obj.prop |> obj.method;
-assert.equal(result, 1);
+expect(result).toBe(1);

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/pipeline-operator/evaluation/output.js

@@ -12,4 +12,4 @@ var obj = {
 
 };
 var result = (_obj$prop = obj.prop, obj.method(_obj$prop));
-assert.equal(result, 1);
+expect(result).toBe(1);

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/pipeline-operator/indirect-eval/exec.js

@@ -3,5 +3,5 @@
   var result = '(function() { return this; })()'
     |> eval;
 
-  assert.notEqual(result, undefined);
+  expect(result).not.toBeUndefined();
 })();

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/pipeline-operator/indirect-eval/input.js

@@ -3,5 +3,5 @@
   var result = '(function() { return this; })()'
     |> eval;
 
-  assert.notEqual(result, undefined);
+  expect(result).not.toBeUndefined();
 })();

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/pipeline-operator/indirect-eval/output.js

@@ -4,5 +4,5 @@
   var _functionReturn;
 
   var result = (_functionReturn = '(function() { return this; })()', (0, eval)(_functionReturn));
-  assert.notEqual(result, undefined);
+  expect(result).not.toBeUndefined();
 })();

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/pipeline-operator/multiple-argument-use/exec.js

@@ -2,4 +2,4 @@ var array = [10,20,30];
 
 var last = array |> a => a[a.length-1];
 
-assert.equal(last, 30);
+expect(last).toBe(30);

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/pipeline-operator/multiple-argument-use/input.js

@@ -2,4 +2,4 @@ var array = [10,20,30];
 
 var last = array |> a => a[a.length-1];
 
-assert.equal(last, 30);
+expect(last).toBe(30);

packages/babel-plugin-proposal-pipeline-operator/test/fixtures/pipeline-operator/multiple-argument-use/output.js

@@ -2,4 +2,4 @@ var _a;
 
 var array = [10, 20, 30];
 var last = (_a = array, _a[_a.length - 1]);
-assert.equal(last, 30);
+expect(last).toBe(30);