Adding Angular and dependent packages for testing

third_party/pkg/angular/test/mock/zone_spec.dart

+library angular.mock.zone_spec;
+
+import '../_specs.dart';
+import 'dart:async';
+
+main() => describe('mock zones', () {
+  describe('sync', () {
+    it('should throw an error on scheduleMicrotask', () {
+      expect(sync(() {
+        scheduleMicrotask(() => dump("i never run"));
+      })).toThrow('scheduleMicrotask called from sync function');
+    });
+
+
+    it('should throw an error on timer', () {
+      expect(sync(() {
+        Timer.run(() => dump("i never run"));
+      })).toThrow('Timer created from sync function');
+    });
+
+
+    it('should throw an error on periodic timer', () {
+      expect(sync(() {
+        new Timer.periodic(new Duration(milliseconds: 10),
+            (_) => dump("i never run"));
+      })).toThrow('periodic Timer created from sync function');
+    });
+  });
+
+  describe('async', () {
+    it('should run synchronous code', () {
+      var ran = false;
+      async(() { ran = true; })();
+      expect(ran).toBe(true);
+    });
+
+
+    it('should run async code', () {
+      var ran = false;
+      var thenRan = false;
+      async(() {
+        new Future.value('s').then((_) { thenRan = true; });
+        expect(thenRan).toBe(false);
+        microLeap();
+        expect(thenRan).toBe(true);
+        ran = true;
+      })();
+      expect(ran).toBe(true);
+    });
+
+
+    it('should run async code with scheduleMicrotask', () {
+      var ran = false;
+      var thenRan = false;
+      async(() {
+        scheduleMicrotask(() { thenRan = true; });
+        expect(thenRan).toBe(false);
+        microLeap();
+        expect(thenRan).toBe(true);
+        ran = true;
+      })();
+      expect(ran).toBe(true);
+    });
+
+
+    it('should run chained thens', () {
+      var log = [];
+      async(() {
+        new Future.value('s')
+        .then((_) { log.add('firstThen'); })
+        .then((_) { log.add('2ndThen'); });
+        expect(log.join(' ')).toEqual('');
+        microLeap();
+        expect(log.join(' ')).toEqual('firstThen 2ndThen');
+      })();
+    });
+
+
+    it('shold run futures created in futures', () {
+      var log = [];
+      async(() {
+        new Future.value('s')
+        .then((_) {
+          log.add('firstThen');
+          new Future.value('t').then((_) {
+            log.add('2ndThen');
+          });
+        });
+        expect(log.join(' ')).toEqual('');
+        microLeap();
+        expect(log.join(' ')).toEqual('firstThen 2ndThen');
+      })();
+    });
+
+    it('should run all the async calls if asked', () {
+      var log = [];
+      async(() {
+        new Future.value('s')
+        .then((_) {
+          log.add('firstThen');
+          new Future.value('t').then((_) {
+            log.add('2ndThen');
+          });
+        });
+        expect(log.join(' ')).toEqual('');
+        microLeap();
+        expect(log.join(' ')).toEqual('firstThen 2ndThen');
+      })();
+    });
+
+
+    it('should not complain if you dangle callbacks', () {
+      async(() {
+        new Future.value("s").then((_) {});
+      })();
+    });
+
+
+    it('should complain if you dangle exceptions', () {
+      expect(() {
+        async(() {
+          new Future.value("s").then((_) {
+            throw ["dangling"];
+          });
+        })();
+      }).toThrow("dangling");
+    });
+
+
+    it('should complain if the test throws an exception', () {
+      expect(() {
+        async(() {
+          throw "blah";
+        })();
+      }).toThrow("blah");
+    });
+
+
+    it('should complain if the test throws an exception during async calls', () {
+      expect(async(() {
+        new Future.value('s').then((_) { throw "blah then"; });
+        microLeap();
+      })).toThrow("blah then");
+    });
+
+    it('should throw errors from the microLeap call', async(() {
+      new Future.value('s').then((_) { throw "blah then 2"; });
+      expect(() {
+        microLeap();
+      }).toThrow("blah then 2");
+    }));
+
+    describe('timers', () {
+      it('should not run queued timer on insufficient clock tick', async(() {
+        bool timerRan = false;
+        var timer = new Timer(new Duration(milliseconds: 10),
+            () => timerRan = true);
+
+        clockTick(milliseconds: 9);
+        expect(timerRan).toBeFalsy();
+
+        timer.cancel();
+      }));
+
+
+      it('should run queued zero duration timer on zero tick', async(() {
+        bool timerRan = false;
+        Timer.run(() => timerRan = true);
+
+        clockTick();
+        expect(timerRan).toBeTruthy();
+      }));
+
+
+      it('should run queued timer after sufficient clock ticks', async(() {
+        bool timerRan = false;
+        new Timer(new Duration(milliseconds: 10), () => timerRan = true);
+
+        clockTick(milliseconds: 9);
+        expect(timerRan).toBeFalsy();
+        clockTick(milliseconds: 1);
+        expect(timerRan).toBeTruthy();
+      }));
+
+
+      it('should run queued timer only once', async(() {
+        int timerRan = 0;
+        new Timer(new Duration(milliseconds: 10), () => timerRan++);
+
+        clockTick(milliseconds: 10);
+        expect(timerRan).toBe(1);
+        clockTick(milliseconds: 10);
+        expect(timerRan).toBe(1);
+        clockTick(minutes: 10);
+        expect(timerRan).toBe(1);
+      }));
+
+
+      it('should run periodic timer', async(() {
+        int timerRan = 0;
+        var timer = new Timer.periodic(new Duration(milliseconds: 10),
+            (_) => timerRan++);
+
+        clockTick(milliseconds: 9);
+        expect(timerRan).toBe(0);
+        clockTick(milliseconds: 1);
+        expect(timerRan).toBe(1);
+        clockTick(milliseconds: 30);
+        expect(timerRan).toBe(4);
+
+        timer.cancel();
+      }));
+
+
+      it('should not run cancelled timer', async(() {
+        bool timerRan = false;
+        var timer = new Timer(new Duration(milliseconds: 10),
+            () => timerRan = true);
+
+        timer.cancel();
+
+        clockTick(milliseconds: 10);
+        expect(timerRan).toBeFalsy();
+      }));
+
+
+      it('should not run cancelled periodic timer', async(() {
+        bool timerRan = false;
+        var timer = new Timer.periodic(new Duration(milliseconds: 10),
+            (_) => timerRan = true);
+
+        timer.cancel();
+
+        clockTick(milliseconds: 10);
+        expect(timerRan).toBeFalsy();
+      }));
+
+
+      it('should be able to cancel periodic timer from callback', async(() {
+        int timerRan = 0;
+        var timer = new Timer.periodic(new Duration(milliseconds: 10),
+            (t) {
+              timerRan++;
+              t.cancel();
+            });
+
+        clockTick(milliseconds: 10);
+        expect(timerRan).toBe(1);
+
+        clockTick(milliseconds: 10);
+        expect(timerRan).toBe(1);
+
+        timer.cancel();
+      }));
+
+
+      it('should process micro-tasks before timers', async(() {
+        var log = [];
+
+        scheduleMicrotask(() => log.add('scheduleMicrotask'));
+        new Timer(new Duration(milliseconds: 10),
+            () => log.add('timer'));
+        var timer = new Timer.periodic(new Duration(milliseconds: 10),
+            (_) => log.add('periodic_timer'));
+
+        expect(log.join(' ')).toEqual('');
+
+        clockTick(milliseconds: 10);
+
+        expect(log.join(' ')).toEqual('scheduleMicrotask timer periodic_timer');
+
+        timer.cancel();
+      }));
+
+
+      it('should process micro-tasks created in timers before next timers', async(() {
+        var log = [];
+
+        scheduleMicrotask(() => log.add('scheduleMicrotask'));
+        new Timer(new Duration(milliseconds: 10),
+            () {
+              log.add('timer');
+              scheduleMicrotask(() => log.add('timer_scheduleMicrotask'));
+            });
+        var timer = new Timer.periodic(new Duration(milliseconds: 10),
+            (_) {
+              log.add('periodic_timer');
+              scheduleMicrotask(() => log.add('periodic_timer_scheduleMicrotask'));
+            });
+
+        expect(log.join(' ')).toEqual('');
+
+        clockTick(milliseconds: 10);
+        expect(log.join(' ')).toEqual('scheduleMicrotask timer timer_scheduleMicrotask periodic_timer');
+
+        clockTick();
+        expect(log.join(' ')).toEqual('scheduleMicrotask timer timer_scheduleMicrotask periodic_timer');
+
+        clockTick(milliseconds: 10);
+        expect(log.join(' ')).toEqual('scheduleMicrotask timer timer_scheduleMicrotask periodic_timer periodic_timer_scheduleMicrotask periodic_timer');
+
+        timer.cancel();
+      }));
+
+
+      it('should not leak timers between asyncs', () {
+        var log = [];
+
+        async(() {
+          var timer = new Timer.periodic(new Duration(milliseconds: 10),
+              (_) => log.add('periodic_timer'));
+          new Timer(new Duration(milliseconds: 10),
+              () => log.add('timer'));
+          clockTick(milliseconds: 10);
+          timer.cancel();
+        })();
+        expect(log.join(' ')).toEqual('periodic_timer timer');
+
+        async(() {
+          clockTick(milliseconds: 10);
+        })();
+        expect(log.join(' ')).toEqual('periodic_timer timer');
+      });
+
+
+      it('should throw an error on dangling timers', () {
+        expect(async(() {
+          new Timer.periodic(new Duration(milliseconds: 10),
+              (_) => dump("i never run"));
+        })).toThrow('1 active timer(s) are still in the queue.');
+      });
+    });
+  });
+});