Update CommandEvent tests to expect an uncomposed event

For whatwg/html#11255.

Author: lukewarlow

html/semantics/the-button-element/command-and-commandfor/button-event-dispatch.html

@@ -30,7 +30,7 @@
     assert_true(event instanceof CommandEvent, "event is CommandEvent");
     assert_equals(event.type, "command", "type");
     assert_equals(event.bubbles, false, "bubbles");
-    assert_equals(event.composed, true, "composed");
+    assert_equals(event.composed, false, "composed");
     assert_equals(event.isTrusted, true, "isTrusted");
     assert_equals(event.command, "--custom-command", "command");
     assert_equals(event.target, invokee, "target");
@@ -47,7 +47,7 @@
     assert_true(event instanceof CommandEvent, "event is CommandEvent");
     assert_equals(event.type, "command", "type");
     assert_equals(event.bubbles, false, "bubbles");
-    assert_equals(event.composed, true, "composed");
+    assert_equals(event.composed, false, "composed");
     assert_equals(event.isTrusted, true, "isTrusted");
     assert_equals(event.command, "--custom-command", "command");
     assert_equals(event.target, invokee, "target");
@@ -66,7 +66,7 @@
         assert_true(event instanceof CommandEvent, "event is CommandEvent");
         assert_equals(event.type, "command", "type");
         assert_equals(event.bubbles, false, "bubbles");
-        assert_equals(event.composed, true, "composed");
+        assert_equals(event.composed, false, "composed");
         assert_equals(event.isTrusted, true, "isTrusted");
         assert_equals(event.command, command, "command");
         assert_equals(event.target, invokee, "target");
@@ -82,7 +82,7 @@
         assert_true(event instanceof CommandEvent, "event is CommandEvent");
         assert_equals(event.type, "command", "type");
         assert_equals(event.bubbles, false, "bubbles");
-        assert_equals(event.composed, true, "composed");
+        assert_equals(event.composed, false, "composed");
         assert_equals(event.isTrusted, true, "isTrusted");
         assert_equals(event.command, command, "command");
         assert_equals(event.target, invokee, "target");
@@ -178,7 +178,7 @@
     assert_true(event instanceof CommandEvent, "event is CommandEvent");
     assert_equals(event.type, "command", "type");
     assert_equals(event.bubbles, false, "bubbles");
-    assert_equals(event.composed, true, "composed");
+    assert_equals(event.composed, false, "composed");
     assert_equals(event.isTrusted, true, "isTrusted");
     assert_equals(event.command, "--custom-command", "command");
     assert_equals(event.target, invokee, "target");

html/semantics/the-button-element/command-and-commandfor/event-dispatch-shadow.html

@@ -6,73 +6,7 @@
 <script src="/resources/testharnessreport.js"></script>
 <script src="resources/invoker-utils.js"></script>
 
-<div id="div"></div>
-<button id="button"></button>
-
 <script>
-  test(function () {
-    const host = document.createElement("div");
-    const child = host.appendChild(document.createElement("p"));
-    const shadow = host.attachShadow({ mode: "closed" });
-    const slot = shadow.appendChild(document.createElement("slot"));
-    let childEvent = null;
-    let childEventTarget = null;
-    let childEventSource = null;
-    let hostEvent = null;
-    let hostEventTarget = null;
-    let hostEventSource = null;
-    slot.addEventListener(
-      "command",
-      (e) => {
-        childEvent = e;
-        childEventTarget = e.target;
-        childEventSource = e.source;
-      },
-      { once: true },
-    );
-    host.addEventListener(
-      "command",
-      (e) => {
-        hostEvent = e;
-        hostEventTarget = e.target;
-        hostEventSource = e.source;
-      },
-      { once: true },
-    );
-    const event = new CommandEvent("command", {
-      bubbles: true,
-      source: slot,
-      composed: true,
-    });
-    slot.dispatchEvent(event);
-    assert_true(childEvent instanceof CommandEvent, "slot saw invoke event");
-    assert_equals(
-      childEventTarget,
-      slot,
-      "target is child inside shadow boundary",
-    );
-    assert_equals(
-      childEventSource,
-      slot,
-      "source is child inside shadow boundary",
-    );
-    assert_equals(
-      hostEvent,
-      childEvent,
-      "event dispatch propagates across shadow boundary",
-    );
-    assert_equals(
-      hostEventTarget,
-      host,
-      "target is retargeted to shadowroot host",
-    );
-    assert_equals(
-      hostEventSource,
-      host,
-      "source is retargeted to shadowroot host",
-    );
-  }, "CommandEvent propagates across shadow boundaries retargeting source");
-
   test(function (t) {
     const host = document.createElement("div");
     document.body.append(host);
@@ -96,6 +30,7 @@
     );
     button.click();
     assert_true(event instanceof CommandEvent);
+    assert_equals(event.composed, false, "composed is false");
     assert_equals(eventTarget, invokee, "target is invokee");
     assert_equals(eventSource, host, "source is host");
   }, "cross shadow CommandEvent retargets source to host element");