diff --git a/packages/babel-helper-call-delegate/src/index.js b/packages/babel-helper-call-delegate/src/index.js
index 4acee88b9afa..7843584620e4 100644
--- a/packages/babel-helper-call-delegate/src/index.js
+++ b/packages/babel-helper-call-delegate/src/index.js
@@ -35,7 +35,6 @@ export default function(
   let callee = container;
   let args = [];
 
-  // todo: only hoist if necessary
   if (shouldHoistVariables) {
     hoistVariables(path, id => scope.push({ id }));
   }
diff --git a/packages/babel-plugin-transform-parameters/test/fixtures/parameters/var-same-as-param-closure/input.js b/packages/babel-plugin-transform-parameters/test/fixtures/parameters/var-same-as-param-closure/exec.js
similarity index 66%
rename from packages/babel-plugin-transform-parameters/test/fixtures/parameters/var-same-as-param-closure/input.js
rename to packages/babel-plugin-transform-parameters/test/fixtures/parameters/var-same-as-param-closure/exec.js
index 21b6653d47b0..1f35e3dd4526 100644
--- a/packages/babel-plugin-transform-parameters/test/fixtures/parameters/var-same-as-param-closure/input.js
+++ b/packages/babel-plugin-transform-parameters/test/fixtures/parameters/var-same-as-param-closure/exec.js
@@ -2,7 +2,7 @@ var x = 1
 function foo(x, y = function () { x = 2 }) {
   var x = 3
   y()
-  console.log(x);
+  expect(x).toBe(3);
 }
 foo()
-console.log(x);
+expect(x).toBe(1);
diff --git a/packages/babel-plugin-transform-parameters/test/fixtures/parameters/var-same-as-param-closure/output.js b/packages/babel-plugin-transform-parameters/test/fixtures/parameters/var-same-as-param-closure/output.js
deleted file mode 100644
index 050d71564b0b..000000000000
--- a/packages/babel-plugin-transform-parameters/test/fixtures/parameters/var-same-as-param-closure/output.js
+++ /dev/null
@@ -1,15 +0,0 @@
-var x = 1;
-
-function foo(x) {
-  var y = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : function () {
-    x = 2;
-  };
-  return function () {
-    var x = 3;
-    y();
-    console.log(x);
-  }();
-}
-
-foo();
-console.log(x);