diff --git a/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/block-scope.js b/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/block-scope.js
index 44cc8e4eb1..572c7cf0ac 100644
--- a/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/block-scope.js
+++ b/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/block-scope.js
@@ -4,7 +4,7 @@ let a = 1;
 
 (do {
   let a = 2;
-  assert.equal(a, 2);
+  expect(a).toBe(2);
 });
-assert.equal(a, 1);
+expect(a).toBe(1);
 
diff --git a/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/do-while.js b/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/do-while.js
index e53fac45bb..ee47f0b55c 100644
--- a/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/do-while.js
+++ b/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/do-while.js
@@ -1,5 +1,5 @@
-assert.equal(do {
+expect(do {
   var i = 5;
   do { i--; } while(i > 3);
   i;
-}, 3);
+}).toBe(3);
diff --git a/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/empty.js b/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/empty.js
index 906776c43b..d8e1688047 100644
--- a/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/empty.js
+++ b/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/empty.js
@@ -1 +1 @@
-assert.equal(do {}, undefined);
+expect(do {}).toBeUndefined();
diff --git a/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/for-in.js b/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/for-in.js
index 9945600d55..6fa5693006 100644
--- a/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/for-in.js
+++ b/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/for-in.js
@@ -1,6 +1,6 @@
-assert.equal(do {
+expect(do {
   var obj = { foo: "bar", bar: "foo" };
   for (var key in obj) {
     obj[key];
   }
-}, "foo");
+}).toBe("foo");
diff --git a/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/for.js b/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/for.js
index 2dd68d55fe..f40232d8b8 100644
--- a/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/for.js
+++ b/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/for.js
@@ -1,5 +1,5 @@
-assert.equal(do {
+expect(do {
   for (var i = 0; i < 5; i++) {
     i;
   }
-}, 4);
+}).toBe(4);
diff --git a/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/if-else-if.js b/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/if-else-if.js
index ce324555ac..60e660b9bc 100644
--- a/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/if-else-if.js
+++ b/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/if-else-if.js
@@ -1,7 +1,7 @@
-assert.equal(do {
+expect(do {
   if (false) {
     "foo";
   } else if (true) {
     "bar";
   }
-}, "bar");
+}).toBe("bar");
diff --git a/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/if-else.js b/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/if-else.js
index 7f29ff878a..e0cf01c362 100644
--- a/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/if-else.js
+++ b/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/if-else.js
@@ -1,7 +1,7 @@
-assert.equal(do {
+expect(do {
   if (false) {
     "foo";
   } else {
     "bar";
   }
-}, "bar");
+}).toBe("bar");
diff --git a/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/if.js b/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/if.js
index 1db4e45884..fb2c1eda70 100644
--- a/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/if.js
+++ b/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/if.js
@@ -1,5 +1,5 @@
-assert.equal(do {
+expect(do {
   if (true) {
     "bar";
   }
-}, "bar");
+}).toBe("bar");
diff --git a/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/single-expression.js b/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/single-expression.js
index c528da6f0f..028f3ecee1 100644
--- a/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/single-expression.js
+++ b/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/single-expression.js
@@ -1,3 +1,3 @@
-assert.equal(do {
+expect(do {
   "foo";
-}, "foo");
+}).toBe("foo");
diff --git a/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/variable-declaration-end.js b/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/variable-declaration-end.js
index 8001c7af88..6a01245434 100644
--- a/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/variable-declaration-end.js
+++ b/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/variable-declaration-end.js
@@ -1,3 +1,3 @@
-assert.equal(do {
+expect(do {
   var bar = "foo";
-}, undefined);
+}).toBeUndefined();
diff --git a/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/variable-declaration-start.js b/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/variable-declaration-start.js
index 2dad90a410..5e5027c56c 100644
--- a/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/variable-declaration-start.js
+++ b/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/variable-declaration-start.js
@@ -1,4 +1,4 @@
-assert.equal(do {
+expect(do {
   var bar = "foo";
   bar;
-}, "foo");
+}).toBe("foo");
diff --git a/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/while.js b/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/while.js
index f902109ca4..d6250c8713 100644
--- a/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/while.js
+++ b/packages/babel-plugin-proposal-do-expressions/test/fixtures/do-expressions/while.js
@@ -1,5 +1,5 @@
-assert.equal(do {
+expect(do {
   var i = 5;
   while (i > 3) i--;
   i;
-}, 3);
+}).toBe(3);