1 files changed, 72 insertions, 0 deletions
diff --git a/devtools/server/tests/xpcshell/test_animation_type.js b/devtools/server/tests/xpcshell/test_animation_type.js
new file mode 100644
index 0000000000..261b5ef2ac
--- /dev/null
+++ b/devtools/server/tests/xpcshell/test_animation_type.js
@@ -0,0 +1,72 @@
+/* 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("resource://devtools/server/actors/animation.js");
+
+function run_test() {
+  // Mock a window with just the properties the AnimationPlayerActor uses.
+  const window = {};
+  window.MutationObserver = class {
+    constructor() {
+      this.observe = () => {};
+    }
+  };
+  window.Animation = class {
+    constructor() {
+      this.effect = { target: getMockNode() };
+    }
+  };
+
+  window.CSSAnimation = class extends window.Animation {};
+  window.CSSTransition = class extends window.Animation {};
+
+  // 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 (const { desc, animation, expectedType } of TEST_DATA) {
+    info(desc);
+    const actor = new AnimationPlayerActor({}, animation);
+    Assert.equal(actor.getType(), expectedType);
+  }
+}