diff --git a/packages/babel-plugin-transform-class-properties/test/fixtures/spec/super-call/expected.js b/packages/babel-plugin-transform-class-properties/test/fixtures/spec/super-call/expected.js
index fa4db4fa64..8ed2311f3d 100644
--- a/packages/babel-plugin-transform-class-properties/test/fixtures/spec/super-call/expected.js
+++ b/packages/babel-plugin-transform-class-properties/test/fixtures/spec/super-call/expected.js
@@ -4,9 +4,9 @@ var A = function () {
   }
 
   babelHelpers.createClass(A, [{
-    key: 'foo',
+    key: "foo",
     value: function foo() {
-      return 'bar';
+      return "bar";
     }
   }]);
   return A;
@@ -19,12 +19,12 @@ var B = function (_A) {
     var _temp, _this, _ret;
 
     babelHelpers.classCallCheck(this, B);
-    return _ret = (_temp = (_this = babelHelpers.possibleConstructorReturn(this, (B.__proto__ || Object.getPrototypeOf(B)).call(this, ...args)), _this), Object.defineProperty(_this, 'foo', {
+    return _ret = (_temp = (_this = babelHelpers.possibleConstructorReturn(this, (B.__proto__ || Object.getPrototypeOf(B)).call(this, ...args)), _this), Object.defineProperty(_this, "foo", {
       enumerable: true,
       writable: true,
-      value: babelHelpers.get(B.prototype.__proto__ || Object.getPrototypeOf(B.prototype), 'foo', _this).call(_this)
+      value: babelHelpers.get(B.prototype.__proto__ || Object.getPrototypeOf(B.prototype), "foo", _this).call(_this)
     }), _temp), babelHelpers.possibleConstructorReturn(_this, _ret);
   }
 
   return B;
-}(A);
+}(A);
\ No newline at end of file
diff --git a/packages/babel-plugin-transform-export-extensions/test/fixtures/export-extensions/namespace-default/actual.js b/packages/babel-plugin-transform-export-extensions/test/fixtures/export-extensions/namespace-default/actual.js
new file mode 100644
index 0000000000..871cd28fa8
--- /dev/null
+++ b/packages/babel-plugin-transform-export-extensions/test/fixtures/export-extensions/namespace-default/actual.js
@@ -0,0 +1 @@
+export * as default from "foo";
diff --git a/packages/babel-plugin-transform-export-extensions/test/fixtures/export-extensions/namespace-default/expected.js b/packages/babel-plugin-transform-export-extensions/test/fixtures/export-extensions/namespace-default/expected.js
new file mode 100644
index 0000000000..f5334b455c
--- /dev/null
+++ b/packages/babel-plugin-transform-export-extensions/test/fixtures/export-extensions/namespace-default/expected.js
@@ -0,0 +1,2 @@
+import * as _default from "foo";
+export { _default as default };
\ No newline at end of file
diff --git a/packages/babel-plugin-transform-export-extensions/test/fixtures/export-extensions/namespace-default/options.json b/packages/babel-plugin-transform-export-extensions/test/fixtures/export-extensions/namespace-default/options.json
new file mode 100644
index 0000000000..26dfe134f4
--- /dev/null
+++ b/packages/babel-plugin-transform-export-extensions/test/fixtures/export-extensions/namespace-default/options.json
@@ -0,0 +1,3 @@
+{
+  "plugins": ["external-helpers", "transform-export-extensions"]
+}