1 files changed, 60 insertions, 0 deletions
diff --git a/testing/web-platform/tests/screen-capture/capture-controller-event-target.https.window.js b/testing/web-platform/tests/screen-capture/capture-controller-event-target.https.window.js
new file mode 100644
index 0000000000..379f359568
--- /dev/null
+++ b/testing/web-platform/tests/screen-capture/capture-controller-event-target.https.window.js
@@ -0,0 +1,60 @@
+'use strict';
+
+const controller = new CaptureController();
+const type = 'my-event-type';
+const listeners = {};
+const listener_count = 10;
+for (let i = 0; i < listener_count; i++) {
+  listeners[i] = {
+    callback: (event) => {
+      assert_equals(event.type, type, `Event type sent to listener ${i}`);
+      listeners[i].execution_count++;
+    }
+  };
+}
+
+test(() => {
+  for (const i in listeners) {
+    listeners[i].execution_count = 0;
+    controller.addEventListener(type, listeners[i].callback);
+  }
+  controller.dispatchEvent(new Event(type));
+  for (const i in listeners) {
+    assert_equals(
+        listeners[i].execution_count, 1,
+        `Callback execution count for listener ${i}`);
+  }
+}, 'Registering listeners on CaptureController and dispatching an event.');
+
+test(() => {
+  for (const i in listeners) {
+    listeners[i].execution_count = 0;
+  }
+  controller.dispatchEvent(new Event(type));
+  controller.dispatchEvent(new Event(type));
+  controller.dispatchEvent(new Event(type));
+  for (const i in listeners) {
+    assert_equals(
+        listeners[i].execution_count, 3,
+        `Callback execution count for listener ${i}`);
+  }
+}, 'Dispatching an multiple events to CaptureController.');
+
+test(() => {
+  for (const i in listeners) {
+    listeners[i].execution_count = 0;
+    if (i % 3) {
+      listeners[i].removed = false;
+    } else {
+      listeners[i].removed = true;
+      controller.removeEventListener(type, listeners[i].callback);
+    };
+  }
+  controller.dispatchEvent(new Event(type));
+  controller.dispatchEvent(new Event(type));
+  for (const i in listeners) {
+    assert_equals(
+        listeners[i].execution_count, listeners[i].removed ? 0 : 2,
+        `Callback execution count for listener ${i}`);
+  }
+}, 'Unregistering listeners from CaptureController and dispatching an event.');