1 files changed, 44 insertions, 0 deletions
diff --git a/testing/web-platform/tests/remote-playback/cancel-watch-availability.html b/testing/web-platform/tests/remote-playback/cancel-watch-availability.html
new file mode 100644
index 0000000000..d83c8cecb0
--- /dev/null
+++ b/testing/web-platform/tests/remote-playback/cancel-watch-availability.html
@@ -0,0 +1,44 @@
+<!DOCTYPE html>
+<html>
+<title>Tests various ways to call cancelWatchAvailability()</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/common/media.js"></script>
+<script>
+async_test(t => {
+  var v = document.createElement('video');
+  v.src = getVideoURI('/media/movie_5');
+
+  v.remote.watchAvailability(function() {})
+    .then(t.step_func(id => {
+      v.remote.cancelWatchAvailability(id).then(t.step_func(function() {
+        v.remote.cancelWatchAvailability(id).then(
+          t.unreached_func(), t.step_func_done(e => {
+            assert_equals(e.name, 'NotFoundError');
+          })
+        );
+      }), t.unreached_func());
+    }), t.unreached_func());
+}, 'Test that calling cancelWatchAvailability() with an id does remove the callback.');
+
+async_test(t => {
+  var v = document.createElement('video');
+  v.src = getVideoURI('/media/movie_5');
+
+  Promise.all([
+      v.remote.watchAvailability(function() {}),
+      v.remote.watchAvailability(function() {})
+  ]).then(t.step_func(ids => {
+    v.remote.cancelWatchAvailability().then(t.step_func(function() {
+      v.remote.cancelWatchAvailability(ids[0]).then(t.unreached_func(), t.step_func(function(e) {
+        assert_equals(e.name, 'NotFoundError');
+        v.remote.cancelWatchAvailability(ids[1])
+          .then(t.unreached_func(), t.step_func_done(function(e) {
+            assert_equals(e.name, 'NotFoundError');
+          }));
+      }));
+    }), t.unreached_func());
+  }), t.unreached_func());
+}, 'Test that calling cancelWatchAvailability() without an id removes all the callbacks.');
+</script>
+</html>