Add fake chalk in browser builds in order to support IE10

package.json

@@ -2,7 +2,7 @@
   "private": true,
   "devDependencies": {
     "ansi-regex": "^3.0.0",
-    "ansi-styles": "^3.0.0",
+    "ansi-styles": "^3.2.0",
     "babel-core": "^6.23.1",
     "babel-eslint": "^7.2.3",
     "babel-plugin-external-helpers": "^6.22.0",

packages/expect/package.json

@@ -9,6 +9,7 @@
   "main": "build/index.js",
   "browser": "build-es5/index.js",
   "dependencies": {
+    "ansi-styles": "^3.2.0",
     "jest-diff": "^20.0.3",
     "jest-get-type": "^20.0.3",
     "jest-matcher-utils": "^20.0.3",

packages/expect/src/__tests__/fake_chalk.test.js

@@ -0,0 +1,20 @@
+/**
+ * Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+'use strict';
+
+const fakeChalk = require.requireActual('../fake_chalk');
+
+describe('Fake Chalk', () => {
+  it('returns input when invoked', () => {
+    expect(fakeChalk.red('yo')).toEqual('yo');
+  });
+
+  it('supports chaining', () => {
+    expect(fakeChalk.red.blue('yo')).toEqual('yo');
+  });
+});

packages/expect/src/fake_chalk.js

@@ -0,0 +1,25 @@
+/**
+ * Copyright (c) 2014, Facebook, Inc. All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ * @flow
+ */
+
+import ansiStyles from 'ansi-styles';
+
+const returnInput = str => str;
+
+const allColorsAsFunc = Object.keys(ansiStyles)
+  .map(style => ({[style]: returnInput}))
+  .reduce((acc, cur) => Object.assign(acc, cur));
+
+Object.keys(allColorsAsFunc)
+  .map(color => allColorsAsFunc[color])
+  .forEach(style => {
+    Object.assign(style, allColorsAsFunc);
+    Object.assign(returnInput, style);
+  });
+
+module.exports = allColorsAsFunc;

packages/pretty-format/package.json

@@ -12,6 +12,6 @@
   "author": "James Kyle <me@thejameskyle.com>",
   "dependencies": {
     "ansi-regex": "^3.0.0",
-    "ansi-styles": "^3.0.0"
+    "ansi-styles": "^3.2.0"
   }
 }

scripts/browserBuild.js

@@ -7,6 +7,7 @@
  */
 'use strict';
 
+const path = require('path');
 const rollup = require('rollup').rollup;
 const rollupResolve = require('rollup-plugin-node-resolve');
 const rollupCommonjs = require('rollup-plugin-commonjs');
@@ -48,6 +49,13 @@ function browserBuild(pkgName, entryPath, destination) {
     entry: entryPath,
     onwarn: () => {},
     plugins: [
+      {
+        resolveId(id) {
+          return id === 'chalk'
+            ? path.resolve(__dirname, '../packages/expect/build/fake_chalk.js')
+            : undefined;
+        },
+      },
       rollupFlow(),
       rollupJson(),
       rollupCommonjs(),

yarn.lock

@@ -114,11 +114,11 @@ ansi-styles@^2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-2.2.1.tgz#b432dd3358b634cf75e1e4664368240533c1ddbe"
 
-ansi-styles@^3.0.0, ansi-styles@^3.1.0:
-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-3.1.0.tgz#09c202d5c917ec23188caa5c9cb9179cd9547750"
+ansi-styles@^3.1.0, ansi-styles@^3.2.0:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-3.2.0.tgz#c159b8d5be0f9e5a6f346dab94f16ce022161b88"
   dependencies:
-    color-convert "^1.0.0"
+    color-convert "^1.9.0"
 
 anymatch@^1.3.0:
   version "1.3.0"
@@ -1556,7 +1556,7 @@ collapse-white-space@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/collapse-white-space/-/collapse-white-space-1.0.2.tgz#9c463fb9c6d190d2dcae21a356a01bcae9eeef6d"
 
-color-convert@^1.0.0:
+color-convert@^1.9.0:
   version "1.9.0"
   resolved "https://registry.yarnpkg.com/color-convert/-/color-convert-1.9.0.tgz#1accf97dd739b983bf994d56fec8f95853641b7a"
   dependencies: