[wdspec] Add a test for "script.realmCreated" event for window.open.

Differential Revision: https://phabricator.services.mozilla.com/D274415

bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=2002721
gecko-commit: f1daec7ab2cd2b99f0edfd1dd4ca9fa0f15025d3
gecko-reviewers: jdescottes

Author: lutien

webdriver/tests/bidi/script/realm_created/window_open.py

@@ -0,0 +1,83 @@
+import pytest
+from webdriver.bidi.modules.script import ContextTarget
+
+from tests.bidi import wait_for_bidi_events
+
+
+pytestmark = pytest.mark.asyncio
+
+CONTEXT_CREATED_EVENT = "browsingContext.contextCreated"
+REALM_CREATED_EVENT = "script.realmCreated"
+
+
+@pytest.mark.parametrize("window_url", ["", "about:blank", "inline"])
+async def test_window_open(
+    bidi_session, subscribe_events, top_context, inline, window_url
+):
+    await subscribe_events(events=[REALM_CREATED_EVENT])
+
+    events = []
+
+    async def on_event(method, data):
+        events.append(data)
+
+    remove_listener = bidi_session.add_event_listener(REALM_CREATED_EVENT, on_event)
+
+    if window_url == "inline":
+        window_url = inline("<div>in window</div>")
+
+    await bidi_session.script.evaluate(
+        expression=f"window.open('{window_url}')",
+        await_promise=False,
+        target=ContextTarget(top_context["context"]),
+    )
+
+    await wait_for_bidi_events(bidi_session, events, 1, equal_check=True)
+
+    realms = await bidi_session.script.get_realms()
+    window_realm = None
+    for realm in realms:
+        if realm["context"] != top_context["context"]:
+            window_realm = realm
+
+    assert events[-1] == window_realm
+
+    remove_listener()
+
+
+@pytest.mark.parametrize("window_url", ["", "about:blank", "inline"])
+async def test_event_order(
+    bidi_session, subscribe_events, new_tab, inline, window_url
+):
+    await subscribe_events(events=[CONTEXT_CREATED_EVENT, REALM_CREATED_EVENT])
+
+    events = []
+
+    async def on_event(method, data):
+        events.append(method)
+
+    remove_listener_for_context_created = bidi_session.add_event_listener(
+        CONTEXT_CREATED_EVENT, on_event
+    )
+    remove_listener_for_realm_created = bidi_session.add_event_listener(
+        REALM_CREATED_EVENT, on_event
+    )
+
+    if window_url == "inline":
+        window_url = inline("<div>in window</div>")
+
+    events = []
+
+    await bidi_session.script.evaluate(
+        expression=f"window.open('{window_url}')",
+        await_promise=False,
+        target=ContextTarget(new_tab["context"]),
+    )
+
+    await wait_for_bidi_events(bidi_session, events, 2, equal_check=True)
+
+    assert events[0] == CONTEXT_CREATED_EVENT
+    assert events[1] == REALM_CREATED_EVENT
+
+    remove_listener_for_context_created()
+    remove_listener_for_realm_created()