1 files changed, 68 insertions, 0 deletions
diff --git a/devtools/server/tests/unit/test_animation_type.js b/devtools/server/tests/unit/test_animation_type.js
new file mode 100644
index 000000000..0f37755a4
--- /dev/null
+++ b/devtools/server/tests/unit/test_animation_type.js
@@ -0,0 +1,68 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+// Test the output of AnimationPlayerActor.getType().
+
+const { ANIMATION_TYPES, AnimationPlayerActor } =
+  require("devtools/server/actors/animation");
+
+function run_test() {
+  // Mock a window with just the properties the AnimationPlayerActor uses.
+  let window = {
+    MutationObserver: function () {
+      this.observe = () => {};
+    },
+    Animation: function () {
+      this.effect = {target: getMockNode()};
+    },
+    CSSAnimation: function () {
+      this.effect = {target: getMockNode()};
+    },
+    CSSTransition: function () {
+      this.effect = {target: getMockNode()};
+    }
+  };
+
+  window.CSSAnimation.prototype = Object.create(window.Animation.prototype);
+  window.CSSTransition.prototype = Object.create(window.Animation.prototype);
+
+  // Helper to get a mock DOM node.
+  function getMockNode() {
+    return {
+      ownerDocument: {
+        defaultView: window
+      }
+    };
+  }
+
+  // Objects in this array should contain the following properties:
+  // - desc {String} For logging
+  // - animation {Object} An animation object instantiated from one of the mock
+  //   window animation constructors.
+  // - expectedType {String} The expected type returned by
+  //   AnimationPlayerActor.getType.
+  const TEST_DATA = [{
+    desc: "Test CSSAnimation type",
+    animation: new window.CSSAnimation(),
+    expectedType: ANIMATION_TYPES.CSS_ANIMATION
+  }, {
+    desc: "Test CSSTransition type",
+    animation: new window.CSSTransition(),
+    expectedType: ANIMATION_TYPES.CSS_TRANSITION
+  }, {
+    desc: "Test ScriptAnimation type",
+    animation: new window.Animation(),
+    expectedType: ANIMATION_TYPES.SCRIPT_ANIMATION
+  }, {
+    desc: "Test unknown type",
+    animation: {effect: {target: getMockNode()}},
+    expectedType: ANIMATION_TYPES.UNKNOWN
+  }];
+
+  for (let { desc, animation, expectedType } of TEST_DATA) {
+    do_print(desc);
+    let actor = AnimationPlayerActor({}, animation);
+    do_check_eq(actor.getType(), expectedType);
+  }
+}