refactor(platform-browser): move platform-browser/animations to animations/browser (#15043)

packages/animations/browser/testing/src/mock_animation_driver.ts

@@ -0,0 +1,80 @@
+/**
+ * @license
+ * Copyright Google Inc. All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.io/license
+ */
+import {AUTO_STYLE, AnimationPlayer, NoopAnimationPlayer, ɵStyleData} from '@angular/animations';
+
+import {AnimationDriver} from '../src/render/animation_driver';
+
+/**
+ * @experimental Animation support is experimental.
+ */
+export class MockAnimationDriver implements AnimationDriver {
+  static log: AnimationPlayer[] = [];
+
+  animate(
+      element: any, keyframes: {[key: string]: string | number}[], duration: number, delay: number,
+      easing: string, previousPlayers: any[] = []): MockAnimationPlayer {
+    const player =
+        new MockAnimationPlayer(element, keyframes, duration, delay, easing, previousPlayers);
+    MockAnimationDriver.log.push(<AnimationPlayer>player);
+    return player;
+  }
+}
+
+/**
+ * @experimental Animation support is experimental.
+ */
+export class MockAnimationPlayer extends NoopAnimationPlayer {
+  private __finished = false;
+  public previousStyles: {[key: string]: string | number} = {};
+
+  constructor(
+      public element: any, public keyframes: {[key: string]: string | number}[],
+      public duration: number, public delay: number, public easing: string,
+      public previousPlayers: any[]) {
+    super();
+    previousPlayers.forEach(player => {
+      if (player instanceof MockAnimationPlayer) {
+        const styles = player._captureStyles();
+        Object.keys(styles).forEach(prop => { this.previousStyles[prop] = styles[prop]; });
+      }
+    });
+  }
+
+  finish(): void {
+    super.finish();
+    this.__finished = true;
+  }
+
+  destroy(): void {
+    super.destroy();
+    this.__finished = true;
+  }
+
+  private _captureStyles(): {[styleName: string]: string | number} {
+    const captures: ɵStyleData = {};
+
+    Object.keys(this.previousStyles).forEach(prop => {
+      captures[prop] = this.previousStyles[prop];
+    });
+
+    if (this.hasStarted()) {
+      // when assembling the captured styles, it's important that
+      // we build the keyframe styles in the following order:
+      // {other styles within keyframes, ... previousStyles }
+      this.keyframes.forEach(kf => {
+        Object.keys(kf).forEach(prop => {
+          if (prop != 'offset') {
+            captures[prop] = this.__finished ? kf[prop] : AUTO_STYLE;
+          }
+        });
+      });
+    }
+
+    return captures;
+  }
+}

packages/animations/browser/testing/src/testing.ts

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+/**
+ * @license
+ * Copyright Google Inc. All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.io/license
+ */
+export {MockAnimationDriver, MockAnimationPlayer} from './mock_animation_driver';