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third_party/pkg/angular/test/animate/animation_optimizer_spec.dart

Index: third_party/pkg/angular/test/animate/animation_optimizer_spec.dart
diff --git a/third_party/pkg/angular/test/animate/animation_optimizer_spec.dart b/third_party/pkg/angular/test/animate/animation_optimizer_spec.dart
new file mode 100644
index 0000000000000000000000000000000000000000..d1be072c051c2aa06e458dbe727015feb4f2cd36
--- /dev/null
+++ b/third_party/pkg/angular/test/animate/animation_optimizer_spec.dart
@@ -0,0 +1,154 @@
+library animation_optimizer_spec;
+
+import '../_specs.dart';
+
+main() {
+  describe('AnimationLoop', () {
+    TestBed _;
+    AnimationOptimizer optimizer;
+    beforeEach(inject((TestBed tb, Expando expand) {
+      _ = tb;
+      optimizer = new AnimationOptimizer(expand);
+    }));
+    
+    it('should prevent animations on child elements', () {
+      var animation = new NoOpAnimation();
+      _.compile('<div><div></div></div>');
+      
+
+      expect(optimizer.shouldAnimate(_.rootElement.children[0])).toBeTruthy();
+      optimizer.track(animation, _.rootElement);
+      expect(optimizer.shouldAnimate(_.rootElement.children[0])).toBeFalsy();
+      optimizer.forget(animation);
+      expect(optimizer.shouldAnimate(_.rootElement.children[0])).toBeTruthy();
+    });
+    
+    it('should allow multiple animations on the same element', () {
+      var animation1 = new NoOpAnimation();
+      var animation2 = new NoOpAnimation();
+      _.compile('<div><div></div></div>');
+      
+      expect(optimizer.shouldAnimate(_.rootElement)).toBeTruthy();
+      optimizer.track(animation1, _.rootElement);
+      expect(optimizer.shouldAnimate(_.rootElement)).toBeTruthy();
+      optimizer.track(animation2, _.rootElement);
+      expect(optimizer.shouldAnimate(_.rootElement)).toBeTruthy();
+      expect(optimizer.shouldAnimate(_.rootElement.children[0])).toBeFalsy();
+      optimizer.forget(animation1);
+      expect(optimizer.shouldAnimate(_.rootElement.children[0])).toBeFalsy();
+      optimizer.forget(animation2);
+      expect(optimizer.shouldAnimate(_.rootElement.children[0])).toBeTruthy();
+    });
+
+    it('should always animate an element', () {
+      _.compile('<div><div></div></div>');
+      optimizer.alwaysAnimate(_.rootElement.children[0], "never");
+      expect(optimizer.shouldAnimate(_.rootElement.children[0])).toBeFalsy();
+      optimizer.alwaysAnimate(_.rootElement.children[0], "always");
+      expect(optimizer.shouldAnimate(_.rootElement.children[0])).toBeTruthy();
+      optimizer.alwaysAnimate(_.rootElement.children[0], "auto");
+      expect(optimizer.shouldAnimate(_.rootElement.children[0])).toBeTruthy();
+    });
+
+    it('alwaysAnimate should not affect children', () {
+      _.compile('<div><div></div></div>');
+      optimizer.alwaysAnimate(_.rootElement, "never");
+      expect(optimizer.shouldAnimate(_.rootElement)).toBeFalsy();
+      expect(optimizer.shouldAnimate(_.rootElement.children[0])).toBeTruthy();
+      optimizer.alwaysAnimate(_.rootElement, "always");
+      expect(optimizer.shouldAnimate(_.rootElement)).toBeTruthy();
+      expect(optimizer.shouldAnimate(_.rootElement.children[0])).toBeTruthy();
+      optimizer.alwaysAnimate(_.rootElement, "auto");
+      expect(optimizer.shouldAnimate(_.rootElement)).toBeTruthy();
+      expect(optimizer.shouldAnimate(_.rootElement.children[0])).toBeTruthy();
+    });
+
+
+    it('alwaysAnimateChildren should not affect element', () {
+      _.compile('<div><div></div></div>');
+
+      optimizer.alwaysAnimateChildren(_.rootElement, "never");
+      expect(optimizer.shouldAnimate(_.rootElement)).toBeTruthy();
+      expect(optimizer.shouldAnimate(_.rootElement.children[0])).toBeFalsy();
+
+      optimizer.alwaysAnimateChildren(_.rootElement, "always");
+      expect(optimizer.shouldAnimate(_.rootElement)).toBeTruthy();
+      expect(optimizer.shouldAnimate(_.rootElement.children[0])).toBeTruthy();
+
+      optimizer.alwaysAnimateChildren(_.rootElement, "auto");
+      expect(optimizer.shouldAnimate(_.rootElement)).toBeTruthy();
+      expect(optimizer.shouldAnimate(_.rootElement.children[0])).toBeTruthy();
+    });
+
+    it('alwaysAnimate should take priority over alwaysAnimateChildren', () {
+      _.compile('<div><div></div></div>');
+
+      optimizer.alwaysAnimateChildren(_.rootElement, "never");
+      optimizer.alwaysAnimate(_.rootElement.children[0], "always");
+      expect(optimizer.shouldAnimate(_.rootElement.children[0])).toBeTruthy();
+
+      optimizer.alwaysAnimateChildren(_.rootElement, "always");
+      optimizer.alwaysAnimate(_.rootElement.children[0], "never");
+      expect(optimizer.shouldAnimate(_.rootElement.children[0])).toBeFalsy();
+    });
+
+    it('alwaysAnimate should take priority over running animations', () {
+      _.compile('<div><div></div></div>');
+      var animation = new NoOpAnimation();
+
+      optimizer.track(animation, _.rootElement);
+      expect(optimizer.shouldAnimate(_.rootElement.children[0])).toBeFalsy();
+
+      optimizer.alwaysAnimate(_.rootElement.children[0], "always");
+      expect(optimizer.shouldAnimate(_.rootElement.children[0])).toBeTruthy();
+
+      optimizer.alwaysAnimate(_.rootElement.children[0], "auto");
+      expect(optimizer.shouldAnimate(_.rootElement.children[0])).toBeFalsy();
+
+      optimizer.forget(animation);
+      expect(optimizer.shouldAnimate(_.rootElement.children[0])).toBeTruthy();
+    });
+
+    it('alwaysAnimateChildren should take priority over running animations',
+        () {
+      _.compile('<div><div></div></div>');
+      var animation = new NoOpAnimation();
+
+      optimizer.track(animation, _.rootElement);
+      expect(optimizer.shouldAnimate(_.rootElement.children[0])).toBeFalsy();
+
+      optimizer.alwaysAnimateChildren(_.rootElement, "always");
+      expect(optimizer.shouldAnimate(_.rootElement.children[0])).toBeTruthy();
+
+      optimizer.alwaysAnimateChildren(_.rootElement, "auto");
+      expect(optimizer.shouldAnimate(_.rootElement.children[0])).toBeFalsy();
+
+      optimizer.forget(animation);
+      expect(optimizer.shouldAnimate(_.rootElement.children[0])).toBeTruthy();
+
+      optimizer.alwaysAnimateChildren(_.rootElement, "never");
+      expect(optimizer.shouldAnimate(_.rootElement.children[0])).toBeFalsy();
+    });
+
+
+    it('alwaysAnimateChildren when nested should prioritize the closest'
+    +'element up the tree.',
+        () {
+      _.compile('<div><div><div></div></div></div>');
+
+      optimizer.alwaysAnimateChildren(_.rootElement, "always");
+      expect(optimizer.shouldAnimate(_.rootElement.children[0].children[0]))
+        .toBeTruthy();
+
+      optimizer.alwaysAnimateChildren(_.rootElement.children[0], "never");
+      expect(optimizer.shouldAnimate(_.rootElement.children[0].children[0]))
+        .toBeFalsy();
+
+
+      optimizer.alwaysAnimateChildren(_.rootElement, "never");
+      optimizer.alwaysAnimateChildren(_.rootElement.children[0], "always");
+      expect(optimizer.shouldAnimate(_.rootElement.children[0].children[0]))
+        .toBeTruthy();
+    });
+  });
+}