Stop running pub get at gclient sync time and fix build bugs

mojo/public/dart/third_party/test/lib/test.dart

+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+library test;
+
+import 'dart:async';
+
+import 'package:path/path.dart' as p;
+
+import 'src/backend/declarer.dart';
+import 'src/backend/test_platform.dart';
+import 'src/frontend/timeout.dart';
+import 'src/runner/engine.dart';
+import 'src/runner/reporter/expanded.dart';
+import 'src/runner/runner_suite.dart';
+import 'src/runner/vm/environment.dart';
+import 'src/utils.dart';
+
+export 'package:matcher/matcher.dart';
+
+export 'src/frontend/expect.dart';
+export 'src/frontend/expect_async.dart';
+export 'src/frontend/future_matchers.dart';
+export 'src/frontend/on_platform.dart';
+export 'src/frontend/prints_matcher.dart';
+export 'src/frontend/skip.dart';
+export 'src/frontend/test_on.dart';
+export 'src/frontend/throws_matcher.dart';
+export 'src/frontend/throws_matchers.dart';
+export 'src/frontend/timeout.dart';
+
+/// The global declarer.
+///
+/// This is used if a test file is run directly, rather than through the runner.
+Declarer _globalDeclarer;
+
+/// Gets the declarer for the current scope.
+///
+/// When using the runner, this returns the [Zone]-scoped declarer that's set by
+/// [IsolateListener] or [IframeListener]. If the test file is run directly,
+/// this returns [_globalDeclarer] (and sets it up on the first call).
+Declarer get _declarer {
+  var declarer = Zone.current[#test.declarer];
+  if (declarer != null) return declarer;
+  if (_globalDeclarer != null) return _globalDeclarer;
+
+  // Since there's no Zone-scoped declarer, the test file is being run directly.
+  // In order to run the tests, we set up our own Declarer via
+  // [_globalDeclarer], and schedule a microtask to run the tests once they're
+  // finished being defined.
+  _globalDeclarer = new Declarer();
+  scheduleMicrotask(() async {
+    var suite = new RunnerSuite(
+        // TODO(nweiz): Use a different environment if VM environment starts
+        // import dart:io before cross-platform libraries exist.
+        const VMEnvironment(),
+        _globalDeclarer.tests,
+        path: p.prettyUri(Uri.base),
+        platform: TestPlatform.vm,
+        os: currentOSGuess);
+
+    var engine = new Engine();
+    engine.suiteSink.add(suite);
+    engine.suiteSink.close();
+    ExpandedReporter.watch(engine,
+        color: true, printPath: false, printPlatform: false);
+
+    var success = await engine.run();
+    // TODO(nweiz): Set the exit code on the VM when issue 6943 is fixed.
+    if (success) return;
+    print('');
+    new Future.error("Dummy exception to set exit code.");
+  });
+  return _globalDeclarer;
+}
+
+// TODO(nweiz): This and other top-level functions should throw exceptions if
+// they're called after the declarer has finished declaring.
+/// Creates a new test case with the given description and body.
+///
+/// The description will be added to the descriptions of any surrounding
+/// [group]s. If [testOn] is passed, it's parsed as a [platform selector][]; the
+/// test will only be run on matching platforms.
+///
+/// [platform selector]: https://github.com/dart-lang/test/#platform-selector-syntax
+///
+/// If [timeout] is passed, it's used to modify or replace the default timeout
+/// of 30 seconds. Timeout modifications take precedence in suite-group-test
+/// order, so [timeout] will also modify any timeouts set on the group or suite.
+///
+/// If [skip] is a String or `true`, the test is skipped. If it's a String, it
+/// should explain why the test is skipped; this reason will be printed instead
+/// of running the test.
+///
+/// [onPlatform] allows tests to be configured on a platform-by-platform
+/// basis. It's a map from strings that are parsed as [PlatformSelector]s to
+/// annotation classes: [Timeout], [Skip], or lists of those. These
+/// annotations apply only on the given platforms. For example:
+///
+///     test("potentially slow test", () {
+///       // ...
+///     }, onPlatform: {
+///       // This test is especially slow on Windows.
+///       "windows": new Timeout.factor(2),
+///       "browser": [
+///         new Skip("TODO: add browser support"),
+///         // This will be slow on browsers once it works on them.
+///         new Timeout.factor(2)
+///       ]
+///     });
+///
+/// If multiple platforms match, the annotations apply in order as through
+/// they were in nested groups.
+void test(String description, body(), {String testOn, Timeout timeout,
+        skip, Map<String, dynamic> onPlatform}) =>
+    _declarer.test(description, body,
+        testOn: testOn, timeout: timeout, skip: skip, onPlatform: onPlatform);
+
+/// Creates a group of tests.
+///
+/// A group's description is included in the descriptions of any tests or
+/// sub-groups it contains. [setUp] and [tearDown] are also scoped to the
+/// containing group.
+///
+/// If [testOn] is passed, it's parsed as a [platform selector][]; the test will
+/// only be run on matching platforms.
+///
+/// [platform selector]: https://github.com/dart-lang/test/#platform-selector-syntax
+///
+/// If [timeout] is passed, it's used to modify or replace the default timeout
+/// of 30 seconds. Timeout modifications take precedence in suite-group-test
+/// order, so [timeout] will also modify any timeouts set on the suite, and will
+/// be modified by any timeouts set on individual tests.
+///
+/// If [skip] is a String or `true`, the group is skipped. If it's a String, it
+/// should explain why the group is skipped; this reason will be printed instead
+/// of running the group's tests.
+///
+/// [onPlatform] allows groups to be configured on a platform-by-platform
+/// basis. It's a map from strings that are parsed as [PlatformSelector]s to
+/// annotation classes: [Timeout], [Skip], or lists of those. These
+/// annotations apply only on the given platforms. For example:
+///
+///     group("potentially slow tests", () {
+///       // ...
+///     }, onPlatform: {
+///       // These tests are especially slow on Windows.
+///       "windows": new Timeout.factor(2),
+///       "browser": [
+///         new Skip("TODO: add browser support"),
+///         // They'll be slow on browsers once it works on them.
+///         new Timeout.factor(2)
+///       ]
+///     });
+///
+/// If multiple platforms match, the annotations apply in order as through
+/// they were in nested groups.
+void group(String description, void body(), {String testOn, Timeout timeout,
+        skip, Map<String, dynamic> onPlatform}) =>
+    _declarer.group(description, body,
+        testOn: testOn, timeout: timeout, skip: skip);
+
+/// Registers a function to be run before tests.
+///
+/// This function will be called before each test is run. [callback] may be
+/// asynchronous; if so, it must return a [Future].
+///
+/// If this is called within a test group, it applies only to tests in that
+/// group. [callback] will be run after any set-up callbacks in parent groups or
+/// at the top level.
+void setUp(callback()) => _declarer.setUp(callback);
+
+/// Registers a function to be run after tests.
+///
+/// This function will be called after each test is run. [callback] may be
+/// asynchronous; if so, it must return a [Future].
+///
+/// If this is called within a test group, it applies only to tests in that
+/// group. [callback] will be run before any tear-down callbacks in parent
+/// groups or at the top level.
+void tearDown(callback()) => _declarer.tearDown(callback);
+
+/// Registers an exception that was caught for the current test.
+void registerException(error, [StackTrace stackTrace]) {
+  // This will usually forward directly to [Invoker.current.handleError], but
+  // going through the zone API allows other zones to consistently see errors.
+  Zone.current.handleUncaughtError(error, stackTrace);
+}