Merge branch 'main' into internal-async

README.md

@@ -2,17 +2,12 @@
 
 [![Build Status](https://circleci.com/gh/jasmine/jasmine.svg?style=shield)](https://circleci.com/gh/jasmine/jasmine)
 [![Open Source Helpers](https://www.codetriage.com/jasmine/jasmine/badges/users.svg)](https://www.codetriage.com/jasmine/jasmine)
-[![FOSSA Status](https://app.fossa.io/api/projects/git%2Bgithub.com%2Fjasmine%2Fjasmine.svg?type=shield)](https://app.fossa.io/projects/git%2Bgithub.com%2Fjasmine%2Fjasmine?ref=badge_shield)
 
 # A JavaScript Testing Framework
 
 Jasmine is a Behavior Driven Development testing framework for JavaScript. It does not rely on browsers, DOM, or any JavaScript framework. Thus it's suited for websites, [Node.js](http://nodejs.org) projects, or anywhere that JavaScript can run.
 
-Documentation & guides live here: [http://jasmine.github.io](http://jasmine.github.io/)
+Upgrading from Jasmine 3.x? Check out the [upgrade guide](https://jasmine.github.io/tutorials/upgrading_to_Jasmine_4.0).
-For a quick start guide of Jasmine, see the beginning of [http://jasmine.github.io/edge/introduction.html](http://jasmine.github.io/edge/introduction.html).
-
-Upgrading from Jasmine 3.x? Check out the 4.0 release notes for a list of
-what's new (including breaking changes). You can also read the [upgrade guide](https://jasmine.github.io/tutorials/upgrading_to_Jasmine_4.0).
 
 ## Contributing
 
@@ -28,7 +23,7 @@ for details.
 
 See the [documentation site](https://jasmine.github.io/pages/docs_home.html),
 particularly the [Your First Suite tutorial](https://jasmine.github.io/tutorials/your_first_suite)
-for information on writing specs.
+for information on writing specs, and [the FAQ](https://jasmine.github.io/pages/faq.html).
 
 ## Supported environments
 
@@ -47,15 +42,7 @@ For evergreen browsers, each version of Jasmine is tested against the version of
 at the time of release. Other browsers, as well as older & newer versions of some supported browsers, are likely to work.
 However, Jasmine isn't tested against them and they aren't actively supported. 
 
-See the [release notes](https://github.com/jasmine/jasmine/tree/main/release_notes)
+To find out what environments work with a particular Jasmine release, see the [release notes](https://github.com/jasmine/jasmine/tree/main/release_notes).
-for the supported environments for each Jasmine release.
-
-## Support
-
-* Search past discussions: [http://groups.google.com/group/jasmine-js](http://groups.google.com/group/jasmine-js).
-* Send an email to the list: [jasmine-js@googlegroups.com](mailto:jasmine-js@googlegroups.com).
-* View the project backlog at Pivotal Tracker: [http://www.pivotaltracker.com/projects/10606](http://www.pivotaltracker.com/projects/10606).
-* Follow us on Twitter: [@JasmineBDD](http://twitter.com/JasmineBDD).
 
 ## Maintainers
 
@@ -71,8 +58,4 @@ for the supported environments for each Jasmine release.
 * [Christian Williams](mailto:antixian666@gmail.com)
 * Sheel Choksi
 
-Copyright (c) 2008-2022 Jasmine Maintainers. This software is licensed under the MIT License.
+Copyright (c) 2008-2022 Jasmine Maintainers. This software is licensed under the [MIT License](https://github.com/jasmine/jasmine/blob/main/MIT.LICENSE).
-
-
-## License
-[![FOSSA Status](https://app.fossa.io/api/projects/git%2Bgithub.com%2Fjasmine%2Fjasmine.svg?type=large)](https://app.fossa.io/projects/git%2Bgithub.com%2Fjasmine%2Fjasmine?ref=badge_large)

RELEASE.md

@@ -35,11 +35,10 @@ When ready to release - specs are all green and the stories are done:
 
 ### Commit and push core changes
 
-1. Run the browser tests using `scripts/run-all-browsers`.
+1. Commit release notes and version changes (jasmine.js, package.json)
-2. Commit release notes and version changes (jasmine.js, package.json)
+2. Push
-3. Push
+3. Tag the release and push the tag.
-4. Tag the release and push the tag.
+4. Wait for Circle CI to go green
-5. Wait for Circle CI to go green
 
 ### Build standalone distribution
 
@@ -53,7 +52,9 @@ When ready to release - specs are all green and the stories are done:
 
 ### Release the docs
 
-Probably only need to do this when releasing a minor version, and not a patch version.
+Probably only need to do this when releasing a minor version, and not a patch
+version. See [the README file in the docs repo](https://github.com/jasmine/jasmine.github.io/blob/master/README.md)
+for instructions.
 
 1. `rake update_edge_jasmine`
 1. `npm run jsdoc`
@@ -68,7 +69,6 @@ Probably only need to do this when releasing a minor version, and not a patch ve
 1. In `package.json`, update both the package version and the jasmine-core dependency version
 1. Commit and push.
 1. Wait for Circle CI to go green again.
-1. Run the tests on Windows locally.
 1. `grunt release `. (Note: This will publish the package by running `npm publish`.)
 
 ### Finally

lib/jasmine-core/jasmine.js

@@ -2789,8 +2789,32 @@ getJasmineRequireObj().CallTracker = function(j$) {
 getJasmineRequireObj().clearStack = function(j$) {
   const maxInlineCallCount = 10;
 
-  function messageChannelImpl(global, setTimeout) {
+  function browserQueueMicrotaskImpl(global) {
-    const channel = new global.MessageChannel();
+    const { setTimeout, queueMicrotask } = global;
+    let currentCallCount = 0;
+    return function clearStack(fn) {
+      currentCallCount++;
+
+      if (currentCallCount < maxInlineCallCount) {
+        queueMicrotask(fn);
+      } else {
+        currentCallCount = 0;
+        setTimeout(fn);
+      }
+    };
+  }
+
+  function nodeQueueMicrotaskImpl(global) {
+    const { queueMicrotask } = global;
+
+    return function(fn) {
+      queueMicrotask(fn);
+    };
+  }
+
+  function messageChannelImpl(global) {
+    const { MessageChannel, setTimeout } = global;
+    const channel = new MessageChannel();
     let head = {};
     let tail = head;
 
@@ -2801,7 +2825,7 @@ getJasmineRequireObj().clearStack = function(j$) {
       delete head.task;
 
       if (taskRunning) {
-        global.setTimeout(task, 0);
+        setTimeout(task, 0);
       } else {
         try {
           taskRunning = true;
@@ -2827,29 +2851,31 @@ getJasmineRequireObj().clearStack = function(j$) {
   }
 
   function getClearStack(global) {
-    let currentCallCount = 0;
+    const NODE_JS =
-    const realSetTimeout = global.setTimeout;
+      global.process &&
-    const setTimeoutImpl = function clearStack(fn) {
+      global.process.versions &&
-      Function.prototype.apply.apply(realSetTimeout, [global, [fn, 0]]);
+      typeof global.process.versions.node === 'string';
-    };
 
-    if (j$.isFunction_(global.setImmediate)) {
+    const SAFARI =
-      const realSetImmediate = global.setImmediate;
+      global.navigator &&
-      return function(fn) {
+      /^((?!chrome|android).)*safari/i.test(global.navigator.userAgent);
-        currentCallCount++;
 
-        if (currentCallCount < maxInlineCallCount) {
+    if (NODE_JS) {
-          realSetImmediate(fn);
+      // Unlike browsers, Node doesn't require us to do a periodic setTimeout
-        } else {
+      // so we avoid the overhead.
-          currentCallCount = 0;
+      return nodeQueueMicrotaskImpl(global);
-
+    } else if (
-          setTimeoutImpl(fn);
+      SAFARI ||
-        }
+      j$.util.isUndefined(global.MessageChannel) /* tests */
-      };
+    ) {
-    } else if (!j$.util.isUndefined(global.MessageChannel)) {
+      // queueMicrotask is dramatically faster than MessageChannel in Safari.
-      return messageChannelImpl(global, setTimeoutImpl);
+      // Some of our own integration tests provide a mock queueMicrotask in all
+      // environments because it's simpler to mock than MessageChannel.
+      return browserQueueMicrotaskImpl(global);
     } else {
-      return setTimeoutImpl;
+      // MessageChannel is faster than queueMicrotask in supported browsers
+      // other than Safari.
+      return messageChannelImpl(global);
     }
   }
 
@@ -4055,21 +4081,14 @@ getJasmineRequireObj().GlobalErrors = function(j$) {
           }
         };
 
-        if (global.addEventListener) {
+        global.addEventListener('unhandledrejection', browserRejectionHandler);
-          global.addEventListener(
-            'unhandledrejection',
-            browserRejectionHandler
-          );
-        }
 
         this.uninstall = function uninstall() {
           global.onerror = originalHandler;
-          if (global.removeEventListener) {
+          global.removeEventListener(
-            global.removeEventListener(
+            'unhandledrejection',
-              'unhandledrejection',
+            browserRejectionHandler
-              browserRejectionHandler
+          );
-            );
-          }
         };
       }
     };
@@ -10424,5 +10443,5 @@ getJasmineRequireObj().UserContext = function(j$) {
 };
 
 getJasmineRequireObj().version = function() {
-  return '4.2.0';
+  return '4.3.0';
 };

package.json

@@ -1,7 +1,7 @@
 {
   "name": "jasmine-core",
   "license": "MIT",
-  "version": "4.2.0",
+  "version": "4.3.0",
   "repository": {
     "type": "git",
     "url": "https://github.com/jasmine/jasmine.git"

release_notes/4.3.0.md

@@ -0,0 +1,40 @@
+# Jasmine 4.3.0 Release Notes
+
+## New Features
+
+* Added [`jasmine.spyOnGlobalErrorsAsync`](https://jasmine.github.io/api/4.3/jasmine.html#.spyOnGlobalErrorsAsync), 
+  to better support testing code that's
+  expected to produce unhandled exceptions or unhandled promise rejections
+  * Fixes [#1843](https://github.com/jasmine/jasmine/issues/1843)
+  * Fixes [#1453](https://github.com/jasmine/jasmine/issues/1453)
+
+## Documentation updates
+
+* Updated the README to reduce redundancy and update support links
+
+## Internal improvements
+
+* Split `Env` into several smaller classes 
+* Replaced uses of `var` with `const`/`let`
+* Replaced most uses of `self = this` with arrow fns
+* Removed obsolete and unused utility fns
+* Separated reporter- and runable-specific queue runner configuration
+* Added more test coverage for default spy strategies
+* Converted integration specs to `async`/`await`
+
+## Supported environments
+
+jasmine-core 4.3.0 has been tested in the following environments.
+
+| Environment       | Supported versions |
+|-------------------|--------------------|
+| Node              | 12.17+, 14, 16, 18 |
+| Safari            | 14-15              |
+| Chrome            | 103                |
+| Firefox           | 91, 102            |
+| Edge              | 103                |
+
+
+------
+
+_Release Notes generated with _[Anchorman](http://github.com/infews/anchorman)_

scripts/run-all-browsers

@@ -25,6 +25,7 @@ passfile=`mktemp -t jasmine-results.XXXXXX` || exit 1
 failfile=`mktemp -t jasmine-results.XXXXXX` || exit 1
 run_browser chrome latest
 run_browser firefox latest
+run_browser firefox 102
 run_browser firefox 91
 run_browser safari 15
 run_browser safari 14

spec/core/ClearStackSpec.js

@@ -9,160 +9,216 @@ describe('ClearStack', function() {
     });
   });
 
-  it('uses setImmediate when available', function() {
+  describe('in Safari', function() {
-    const setImmediate = jasmine
+    usesQueueMicrotaskWithSetTimeout(function() {
-        .createSpy('setImmediate')
+      return {
-        .and.callFake(function(fn) {
+        navigator: {
-          fn();
+          userAgent:
-        }),
+            'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/605.0.8 (KHTML, like Gecko) Version/15.1 Safari/605.0.8'
-      global = { setImmediate: setImmediate },
+        },
-      clearStack = jasmineUnderTest.getClearStack(global);
+        // queueMicrotask should be used even though MessageChannel is present
-    let called = false;
+        MessageChannel: fakeMessageChannel
+      };
+    });
+  });
 
-    clearStack(function() {
+  describe('in browsers other than Safari', function() {
-      called = true;
+    usesMessageChannel(function() {
+      return {
+        navigator: {
+          // Chrome's user agent string contains "Safari" so it's a good test case
+          userAgent:
+            'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36'
+        }
+      };
     });
 
-    expect(called).toBe(true);
+    describe('when MessageChannel is unavailable', function() {
-    expect(setImmediate).toHaveBeenCalled();
+      usesQueueMicrotaskWithSetTimeout(function() {
+        return {
+          navigator: {
+            userAgent: 'CERN-LineMode/2.15 libwww/2.17b3',
+            MessageChannel: undefined
+          }
+        };
+      });
+    });
   });
 
-  it('uses setTimeout instead of setImmediate every 10 calls to make sure we release the CPU', function() {
+  describe('in Node', function() {
-    const setImmediate = jasmine.createSpy('setImmediate'),
+    usesQueueMicrotaskWithoutSetTimeout(function() {
-      setTimeout = jasmine.createSpy('setTimeout'),
+      return {
-      global = { setImmediate: setImmediate, setTimeout: setTimeout },
+        process: {
-      clearStack = jasmineUnderTest.getClearStack(global);
+          versions: {
-
+            node: '3.1415927'
-    clearStack(function() {});
-    clearStack(function() {});
-    clearStack(function() {});
-    clearStack(function() {});
-    clearStack(function() {});
-    clearStack(function() {});
-    clearStack(function() {});
-    clearStack(function() {});
-    clearStack(function() {});
-
-    expect(setImmediate).toHaveBeenCalled();
-    expect(setTimeout).not.toHaveBeenCalled();
-
-    clearStack(function() {});
-    expect(setImmediate.calls.count()).toEqual(9);
-    expect(setTimeout.calls.count()).toEqual(1);
-
-    clearStack(function() {});
-    expect(setImmediate.calls.count()).toEqual(10);
-    expect(setTimeout.calls.count()).toEqual(1);
-  });
-
-  it('uses MessageChannels when available', function() {
-    const fakeChannel = {
-        port1: {},
-        port2: {
-          postMessage: function() {
-            fakeChannel.port1.onmessage();
           }
         }
-      },
+      };
-      global = {
+    });
-        MessageChannel: function() {
+  });
-          return fakeChannel;
-        }
-      },
-      clearStack = jasmineUnderTest.getClearStack(global);
-    let called = false;
 
-    clearStack(function() {
+  function usesMessageChannel(makeGlobal) {
-      called = true;
+    it('uses MessageChannel', function() {
+      const global = {
+        ...makeGlobal(),
+        MessageChannel: fakeMessageChannel
+      };
+      const clearStack = jasmineUnderTest.getClearStack(global);
+      let called = false;
+
+      clearStack(function() {
+        called = true;
+      });
+
+      expect(called).toBe(true);
     });
 
-    expect(called).toBe(true);
+    it('uses setTimeout instead of MessageChannel every 10 calls to make sure we release the CPU', function() {
-  });
+      const fakeChannel = fakeMessageChannel();
-
+      spyOn(fakeChannel.port2, 'postMessage');
-  it('uses setTimeout instead of MessageChannel every 10 calls to make sure we release the CPU', function() {
+      const setTimeout = jasmine.createSpy('setTimeout');
-    const fakeChannel = {
+      const global = {
-        port1: {},
+        ...makeGlobal(),
-        port2: {
+        setTimeout,
-          postMessage: jasmine
-            .createSpy('postMessage')
-            .and.callFake(function() {
-              fakeChannel.port1.onmessage();
-            })
-        }
-      },
-      setTimeout = jasmine.createSpy('setTimeout'),
-      global = {
         MessageChannel: function() {
           return fakeChannel;
-        },
-        setTimeout: setTimeout
-      },
-      clearStack = jasmineUnderTest.getClearStack(global);
-
-    clearStack(function() {});
-    clearStack(function() {});
-    clearStack(function() {});
-    clearStack(function() {});
-    clearStack(function() {});
-    clearStack(function() {});
-    clearStack(function() {});
-    clearStack(function() {});
-    clearStack(function() {});
-
-    expect(fakeChannel.port2.postMessage).toHaveBeenCalled();
-    expect(setTimeout).not.toHaveBeenCalled();
-
-    clearStack(function() {});
-    expect(fakeChannel.port2.postMessage.calls.count()).toEqual(9);
-    expect(setTimeout.calls.count()).toEqual(1);
-
-    clearStack(function() {});
-    expect(fakeChannel.port2.postMessage.calls.count()).toEqual(10);
-    expect(setTimeout.calls.count()).toEqual(1);
-  });
-
-  it('calls setTimeout when onmessage is called recursively', function() {
-    const fakeChannel = {
-        port1: {},
-        port2: {
-          postMessage: function() {
-            fakeChannel.port1.onmessage();
-          }
         }
-      },
+      };
-      setTimeout = jasmine.createSpy('setTimeout'),
+      const clearStack = jasmineUnderTest.getClearStack(global);
-      global = {
-        MessageChannel: function() {
-          return fakeChannel;
-        },
-        setTimeout: setTimeout
-      },
-      clearStack = jasmineUnderTest.getClearStack(global),
-      fn = jasmine.createSpy('second clearStack function');
 
-    clearStack(function() {
+      for (let i = 0; i < 9; i++) {
-      clearStack(fn);
+        clearStack(function() {});
+      }
+
+      expect(fakeChannel.port2.postMessage).toHaveBeenCalled();
+      expect(setTimeout).not.toHaveBeenCalled();
+
+      clearStack(function() {});
+      expect(fakeChannel.port2.postMessage).toHaveBeenCalledTimes(9);
+      expect(setTimeout).toHaveBeenCalledTimes(1);
+
+      clearStack(function() {});
+      expect(fakeChannel.port2.postMessage).toHaveBeenCalledTimes(10);
+      expect(setTimeout).toHaveBeenCalledTimes(1);
     });
 
-    expect(fn).not.toHaveBeenCalled();
+    it('calls setTimeout when onmessage is called recursively', function() {
-    expect(setTimeout).toHaveBeenCalledWith(fn, 0);
+      const setTimeout = jasmine.createSpy('setTimeout');
-  });
+      const global = {
+        ...makeGlobal(),
+        setTimeout,
+        MessageChannel: fakeMessageChannel
+      };
+      const clearStack = jasmineUnderTest.getClearStack(global);
+      const fn = jasmine.createSpy('second clearStack function');
 
-  it('falls back to setTimeout', function() {
+      clearStack(function() {
-    const setTimeout = jasmine
+        clearStack(fn);
-        .createSpy('setTimeout')
+      });
-        .and.callFake(function(fn) {
+
+      expect(fn).not.toHaveBeenCalled();
+      expect(setTimeout).toHaveBeenCalledWith(fn, 0);
+    });
+  }
+
+  function usesQueueMicrotaskWithSetTimeout(makeGlobal) {
+    it('uses queueMicrotask', function() {
+      const global = {
+        ...makeGlobal(),
+        queueMicrotask: function(fn) {
           fn();
-        }),
+        }
-      global = { setTimeout: setTimeout },
+      };
-      clearStack = jasmineUnderTest.getClearStack(global);
+      const clearStack = jasmineUnderTest.getClearStack(global);
-    let called = false;
+      let called = false;
 
-    clearStack(function() {
+      clearStack(function() {
-      called = true;
+        called = true;
+      });
+
+      expect(called).toBe(true);
     });
 
-    expect(called).toBe(true);
+    it('uses setTimeout instead of queueMicrotask every 10 calls to make sure we release the CPU', function() {
-    expect(setTimeout).toHaveBeenCalledWith(jasmine.any(Function), 0);
+      const queueMicrotask = jasmine.createSpy('queueMicrotask');
-  });
+      const setTimeout = jasmine.createSpy('setTimeout');
+      const global = {
+        ...makeGlobal(),
+        queueMicrotask,
+        setTimeout
+      };
+      const clearStack = jasmineUnderTest.getClearStack(global);
+
+      for (let i = 0; i < 9; i++) {
+        clearStack(function() {});
+      }
+
+      expect(queueMicrotask).toHaveBeenCalled();
+      expect(setTimeout).not.toHaveBeenCalled();
+
+      clearStack(function() {});
+      expect(queueMicrotask).toHaveBeenCalledTimes(9);
+      expect(setTimeout).toHaveBeenCalledTimes(1);
+
+      clearStack(function() {});
+      expect(queueMicrotask).toHaveBeenCalledTimes(10);
+      expect(setTimeout).toHaveBeenCalledTimes(1);
+    });
+  }
+
+  function usesQueueMicrotaskWithoutSetTimeout(makeGlobal) {
+    it('uses queueMicrotask', function() {
+      const global = {
+        ...makeGlobal(),
+        queueMicrotask: function(fn) {
+          fn();
+        }
+      };
+      const clearStack = jasmineUnderTest.getClearStack(global);
+      let called = false;
+
+      clearStack(function() {
+        called = true;
+      });
+
+      expect(called).toBe(true);
+    });
+
+    it('does not use setTimeout', function() {
+      const queueMicrotask = jasmine.createSpy('queueMicrotask');
+      const setTimeout = jasmine.createSpy('setTimeout');
+      const global = {
+        ...makeGlobal(),
+        queueMicrotask,
+        setTimeout
+      };
+      const clearStack = jasmineUnderTest.getClearStack(global);
+
+      clearStack(function() {});
+      clearStack(function() {});
+      clearStack(function() {});
+      clearStack(function() {});
+      clearStack(function() {});
+      clearStack(function() {});
+      clearStack(function() {});
+      clearStack(function() {});
+      clearStack(function() {});
+      clearStack(function() {});
+
+      expect(queueMicrotask).toHaveBeenCalledTimes(10);
+      expect(setTimeout).not.toHaveBeenCalled();
+    });
+  }
+
+  function fakeMessageChannel() {
+    const channel = {
+      port1: {},
+      port2: {
+        postMessage: function() {
+          channel.port1.onmessage();
+        }
+      }
+    };
+    return channel;
+  }
 });

spec/core/GlobalErrorsSpec.js

@@ -1,8 +1,8 @@
 describe('GlobalErrors', function() {
   it('calls the added handler on error', function() {
-    const fakeGlobal = { onerror: null },
+    const fakeGlobal = minimalBrowserGlobal();
-      handler = jasmine.createSpy('errorHandler'),
+    const handler = jasmine.createSpy('errorHandler');
-      errors = new jasmineUnderTest.GlobalErrors(fakeGlobal);
+    const errors = new jasmineUnderTest.GlobalErrors(fakeGlobal);
 
     errors.install();
     errors.pushListener(handler);
@@ -13,10 +13,10 @@ describe('GlobalErrors', function() {
   });
 
   it('enables external interception of error by overriding global.onerror', function() {
-    const fakeGlobal = { onerror: null },
+    const fakeGlobal = minimalBrowserGlobal();
-      handler = jasmine.createSpy('errorHandler'),
+    const handler = jasmine.createSpy('errorHandler');
-      hijackHandler = jasmine.createSpy('hijackErrorHandler'),
+    const hijackHandler = jasmine.createSpy('hijackErrorHandler');
-      errors = new jasmineUnderTest.GlobalErrors(fakeGlobal);
+    const errors = new jasmineUnderTest.GlobalErrors(fakeGlobal);
 
     errors.install();
     errors.pushListener(handler);
@@ -30,10 +30,10 @@ describe('GlobalErrors', function() {
   });
 
   it('calls the global error handler with all parameters', function() {
-    const fakeGlobal = { onerror: null },
+    const fakeGlobal = minimalBrowserGlobal();
-      handler = jasmine.createSpy('errorHandler'),
+    const handler = jasmine.createSpy('errorHandler');
-      errors = new jasmineUnderTest.GlobalErrors(fakeGlobal),
+    const errors = new jasmineUnderTest.GlobalErrors(fakeGlobal);
-      fooError = new Error('foo');
+    const fooError = new Error('foo');
 
     errors.install();
     errors.pushListener(handler);
@@ -50,10 +50,10 @@ describe('GlobalErrors', function() {
   });
 
   it('only calls the most recent handler', function() {
-    const fakeGlobal = { onerror: null },
+    const fakeGlobal = minimalBrowserGlobal();
-      handler1 = jasmine.createSpy('errorHandler1'),
+    const handler1 = jasmine.createSpy('errorHandler1');
-      handler2 = jasmine.createSpy('errorHandler2'),
+    const handler2 = jasmine.createSpy('errorHandler2');
-      errors = new jasmineUnderTest.GlobalErrors(fakeGlobal);
+    const errors = new jasmineUnderTest.GlobalErrors(fakeGlobal);
 
     errors.install();
     errors.pushListener(handler1);
@@ -66,10 +66,10 @@ describe('GlobalErrors', function() {
   });
 
   it('calls previous handlers when one is removed', function() {
-    const fakeGlobal = { onerror: null },
+    const fakeGlobal = minimalBrowserGlobal();
-      handler1 = jasmine.createSpy('errorHandler1'),
+    const handler1 = jasmine.createSpy('errorHandler1');
-      handler2 = jasmine.createSpy('errorHandler2'),
+    const handler2 = jasmine.createSpy('errorHandler2');
-      errors = new jasmineUnderTest.GlobalErrors(fakeGlobal);
+    const errors = new jasmineUnderTest.GlobalErrors(fakeGlobal);
 
     errors.install();
     errors.pushListener(handler1);
@@ -91,9 +91,12 @@ describe('GlobalErrors', function() {
   });
 
   it('uninstalls itself, putting back a previous callback', function() {
-    const originalCallback = jasmine.createSpy('error'),
+    const originalCallback = jasmine.createSpy('error');
-      fakeGlobal = { onerror: originalCallback },
+    const fakeGlobal = {
-      errors = new jasmineUnderTest.GlobalErrors(fakeGlobal);
+      ...minimalBrowserGlobal(),
+      onerror: originalCallback
+    };
+    const errors = new jasmineUnderTest.GlobalErrors(fakeGlobal);
 
     expect(fakeGlobal.onerror).toBe(originalCallback);
 
@@ -107,9 +110,9 @@ describe('GlobalErrors', function() {
   });
 
   it('rethrows the original error when there is no handler', function() {
-    const fakeGlobal = {},
+    const fakeGlobal = minimalBrowserGlobal();
-      errors = new jasmineUnderTest.GlobalErrors(fakeGlobal),
+    const errors = new jasmineUnderTest.GlobalErrors(fakeGlobal);
-      originalError = new Error('nope');
+    const originalError = new Error('nope');
 
     errors.install();
 
@@ -407,7 +410,7 @@ describe('GlobalErrors', function() {
 
   describe('#setOverrideListener', function() {
     it('overrides the existing handlers in browsers until removed', function() {
-      const fakeGlobal = { onerror: null };
+      const fakeGlobal = minimalBrowserGlobal();
       const handler0 = jasmine.createSpy('handler0');
       const handler1 = jasmine.createSpy('handler1');
       const overrideHandler = jasmine.createSpy('overrideHandler');
@@ -529,8 +532,7 @@ describe('GlobalErrors', function() {
     });
 
     it('throws if there is already an override handler', function() {
-      const fakeGlobal = { onerror: null };
+      const errors = new jasmineUnderTest.GlobalErrors(minimalBrowserGlobal());
-      const errors = new jasmineUnderTest.GlobalErrors(fakeGlobal);
 
       errors.setOverrideListener(() => {}, () => {});
       expect(function() {
@@ -541,9 +543,8 @@ describe('GlobalErrors', function() {
 
   describe('#removeOverrideListener', function() {
     it("calls the handler's onRemove callback", function() {
-      const fakeGlobal = { onerror: null };
       const onRemove = jasmine.createSpy('onRemove');
-      const errors = new jasmineUnderTest.GlobalErrors(fakeGlobal);
+      const errors = new jasmineUnderTest.GlobalErrors(minimalBrowserGlobal());
 
       errors.setOverrideListener(() => {}, onRemove);
       errors.removeOverrideListener();
@@ -552,10 +553,17 @@ describe('GlobalErrors', function() {
     });
 
     it('does not throw if there is no handler', function() {
-      const fakeGlobal = { onerror: null };
+      const errors = new jasmineUnderTest.GlobalErrors(minimalBrowserGlobal());
-      const errors = new jasmineUnderTest.GlobalErrors(fakeGlobal);
 
       expect(() => errors.removeOverrideListener()).not.toThrow();
     });
   });
+
+  function minimalBrowserGlobal() {
+    return {
+      addEventListener() {},
+      removeEventListener() {},
+      onerror: null
+    };
+  }
 });

spec/core/integration/EnvSpec.js

@@ -431,11 +431,15 @@ describe('Env integration', function() {
   describe('Handling async errors', function() {
     it('routes async errors to a running spec', async function() {
       const global = {
+        ...browserEventMethods(),
         setTimeout: function(fn, delay) {
           return setTimeout(fn, delay);
         },
         clearTimeout: function(fn, delay) {
           clearTimeout(fn, delay);
+        },
+        queueMicrotask: function(fn) {
+          queueMicrotask(fn);
         }
       };
       spyOn(jasmineUnderTest, 'getGlobal').and.returnValue(global);
@@ -468,11 +472,15 @@ describe('Env integration', function() {
     describe('When the running spec has reported specDone', function() {
       it('routes async errors to an ancestor suite', async function() {
         const global = {
+          ...browserEventMethods(),
           setTimeout: function(fn, delay) {
             return setTimeout(fn, delay);
           },
           clearTimeout: function(fn) {
             clearTimeout(fn);
+          },
+          queueMicrotask: function(fn) {
+            queueMicrotask(fn);
           }
         };
         spyOn(jasmineUnderTest, 'getGlobal').and.returnValue(global);
@@ -524,11 +532,15 @@ describe('Env integration', function() {
 
     it('routes async errors to a running suite', async function() {
       const global = {
+        ...browserEventMethods(),
         setTimeout: function(fn, delay) {
           return setTimeout(fn, delay);
         },
         clearTimeout: function(fn, delay) {
           clearTimeout(fn, delay);
+        },
+        queueMicrotask: function(fn) {
+          queueMicrotask(fn);
         }
       };
       spyOn(jasmineUnderTest, 'getGlobal').and.returnValue(global);
@@ -545,8 +557,8 @@ describe('Env integration', function() {
         env.it('fails', function(specDone) {
           setTimeout(function() {
             specDone();
-            setTimeout(function() {
+            queueMicrotask(function() {
-              setTimeout(function() {
+              queueMicrotask(function() {
                 global.onerror('fail');
               });
             });
@@ -573,11 +585,15 @@ describe('Env integration', function() {
     describe('When the running suite has reported suiteDone', function() {
       it('routes async errors to an ancestor suite', async function() {
         const global = {
+          ...browserEventMethods(),
           setTimeout: function(fn, delay) {
             return setTimeout(fn, delay);
           },
           clearTimeout: function(fn, delay) {
             clearTimeout(fn, delay);
+          },
+          queueMicrotask: function(fn) {
+            queueMicrotask(fn);
           }
         };
         spyOn(jasmineUnderTest, 'getGlobal').and.returnValue(global);
@@ -633,11 +649,15 @@ describe('Env integration', function() {
     describe('When the env has started reporting jasmineDone', function() {
       it('logs the error to the console', async function() {
         const global = {
+          ...browserEventMethods(),
           setTimeout: function(fn, delay) {
             return setTimeout(fn, delay);
           },
           clearTimeout: function(fn, delay) {
             clearTimeout(fn, delay);
+          },
+          queueMicrotask: function(fn) {
+            queueMicrotask(fn);
           }
         };
         spyOn(jasmineUnderTest, 'getGlobal').and.returnValue(global);
@@ -672,11 +692,15 @@ describe('Env integration', function() {
 
     it('routes all errors that occur during stack clearing somewhere', async function() {
       const global = {
+        ...browserEventMethods(),
         setTimeout: function(fn, delay) {
           return setTimeout(fn, delay);
         },
         clearTimeout: function(fn) {
           clearTimeout(fn);
+        },
+        queueMicrotask: function(fn) {
+          queueMicrotask(fn);
         }
       };
       spyOn(jasmineUnderTest, 'getGlobal').and.returnValue(global);
@@ -1427,8 +1451,8 @@ describe('Env integration', function() {
       global: {
         setTimeout: globalSetTimeout,
         clearTimeout: clearTimeout,
-        setImmediate: function(cb) {
+        queueMicrotask: function(fn) {
-          return setTimeout(cb, 0);
+          queueMicrotask(fn);
         }
       }
     });
@@ -1501,8 +1525,8 @@ describe('Env integration', function() {
           clearTimeout: clearTimeout,
           setInterval: setInterval,
           clearInterval: clearInterval,
-          setImmediate: function(cb) {
+          queueMicrotask: function(fn) {
-            return realSetTimeout(cb, 0);
+            queueMicrotask(fn);
           }
         }
       });
@@ -2619,12 +2643,16 @@ describe('Env integration', function() {
 
   it('reports errors that occur during loading', async function() {
     const global = {
+      ...browserEventMethods(),
       setTimeout: function(fn, delay) {
         return setTimeout(fn, delay);
       },
       clearTimeout: function(fn, delay) {
         clearTimeout(fn, delay);
       },
+      queueMicrotask: function(fn) {
+        queueMicrotask(fn);
+      },
       onerror: function() {}
     };
     spyOn(jasmineUnderTest, 'getGlobal').and.returnValue(global);
@@ -2674,12 +2702,16 @@ describe('Env integration', function() {
     it('does not install a global error handler during loading', async function() {
       const originalOnerror = jasmine.createSpy('original onerror');
       const global = {
+        ...browserEventMethods(),
         setTimeout: function(fn, delay) {
           return setTimeout(fn, delay);
         },
         clearTimeout: function(fn, delay) {
           clearTimeout(fn, delay);
         },
+        queueMicrotask: function(fn) {
+          queueMicrotask(fn);
+        },
         onerror: originalOnerror
       };
       spyOn(jasmineUnderTest, 'getGlobal').and.returnValue(global);
@@ -2864,11 +2896,15 @@ describe('Env integration', function() {
     describe('When there are load errors', function() {
       it('is "failed"', async function() {
         const global = {
+          ...browserEventMethods(),
           setTimeout: function(fn, delay) {
             return setTimeout(fn, delay);
           },
           clearTimeout: function(fn, delay) {
             return clearTimeout(fn, delay);
+          },
+          queueMicrotask: function(fn) {
+            queueMicrotask(fn);
           }
         };
         spyOn(jasmineUnderTest, 'getGlobal').and.returnValue(global);
@@ -3906,4 +3942,11 @@ describe('Env integration', function() {
       );
     });
   });
+
+  function browserEventMethods() {
+    return {
+      addEventListener() {},
+      removeEventListener() {}
+    };
+  }
 });

src/core/ClearStack.js

@@ -1,8 +1,32 @@
 getJasmineRequireObj().clearStack = function(j$) {
   const maxInlineCallCount = 10;
 
-  function messageChannelImpl(global, setTimeout) {
+  function browserQueueMicrotaskImpl(global) {
-    const channel = new global.MessageChannel();
+    const { setTimeout, queueMicrotask } = global;
+    let currentCallCount = 0;
+    return function clearStack(fn) {
+      currentCallCount++;
+
+      if (currentCallCount < maxInlineCallCount) {
+        queueMicrotask(fn);
+      } else {
+        currentCallCount = 0;
+        setTimeout(fn);
+      }
+    };
+  }
+
+  function nodeQueueMicrotaskImpl(global) {
+    const { queueMicrotask } = global;
+
+    return function(fn) {
+      queueMicrotask(fn);
+    };
+  }
+
+  function messageChannelImpl(global) {
+    const { MessageChannel, setTimeout } = global;
+    const channel = new MessageChannel();
     let head = {};
     let tail = head;
 
@@ -13,7 +37,7 @@ getJasmineRequireObj().clearStack = function(j$) {
       delete head.task;
 
       if (taskRunning) {
-        global.setTimeout(task, 0);
+        setTimeout(task, 0);
       } else {
         try {
           taskRunning = true;
@@ -39,29 +63,31 @@ getJasmineRequireObj().clearStack = function(j$) {
   }
 
   function getClearStack(global) {
-    let currentCallCount = 0;
+    const NODE_JS =
-    const realSetTimeout = global.setTimeout;
+      global.process &&
-    const setTimeoutImpl = function clearStack(fn) {
+      global.process.versions &&
-      Function.prototype.apply.apply(realSetTimeout, [global, [fn, 0]]);
+      typeof global.process.versions.node === 'string';
-    };
 
-    if (j$.isFunction_(global.setImmediate)) {
+    const SAFARI =
-      const realSetImmediate = global.setImmediate;
+      global.navigator &&
-      return function(fn) {
+      /^((?!chrome|android).)*safari/i.test(global.navigator.userAgent);
-        currentCallCount++;
 
-        if (currentCallCount < maxInlineCallCount) {
+    if (NODE_JS) {
-          realSetImmediate(fn);
+      // Unlike browsers, Node doesn't require us to do a periodic setTimeout
-        } else {
+      // so we avoid the overhead.
-          currentCallCount = 0;
+      return nodeQueueMicrotaskImpl(global);
-
+    } else if (
-          setTimeoutImpl(fn);
+      SAFARI ||
-        }
+      j$.util.isUndefined(global.MessageChannel) /* tests */
-      };
+    ) {
-    } else if (!j$.util.isUndefined(global.MessageChannel)) {
+      // queueMicrotask is dramatically faster than MessageChannel in Safari.
-      return messageChannelImpl(global, setTimeoutImpl);
+      // Some of our own integration tests provide a mock queueMicrotask in all
+      // environments because it's simpler to mock than MessageChannel.
+      return browserQueueMicrotaskImpl(global);
     } else {
-      return setTimeoutImpl;
+      // MessageChannel is faster than queueMicrotask in supported browsers
+      // other than Safari.
+      return messageChannelImpl(global);
     }
   }
 

src/core/GlobalErrors.js

@@ -109,21 +109,14 @@ getJasmineRequireObj().GlobalErrors = function(j$) {
           }
         };
 
-        if (global.addEventListener) {
+        global.addEventListener('unhandledrejection', browserRejectionHandler);
-          global.addEventListener(
-            'unhandledrejection',
-            browserRejectionHandler
-          );
-        }
 
         this.uninstall = function uninstall() {
           global.onerror = originalHandler;
-          if (global.removeEventListener) {
+          global.removeEventListener(
-            global.removeEventListener(
+            'unhandledrejection',
-              'unhandledrejection',
+            browserRejectionHandler
-              browserRejectionHandler
+          );
-            );
-          }
         };
       }
     };