Update web-platform-tests to revision 346d5b51a122f7bb1c7747064499ef281a0200f7

tests/wpt/web-platform-tests/webdriver/contexts.py

@@ -0,0 +1,27 @@
+def test_resize(session):
+    # setting the window size by webdriver is synchronous
+    # so we should see the results immediately
+
+    session.window.size = (200, 100)
+    assert session.window.size == {"width": 100, "height": 200}
+
+    session.window.size = (100, 200)
+    assert session.window.size == {"width": 200, "height": 100}
+
+def test_resize_by_script(session):
+    # setting the window size by JS is asynchronous
+    # so we poll waiting for the results
+
+    size0 = session.window.size
+
+    session.execute_script("window.resizeTo(100, 200)")
+    size1 = session.window.size
+    while size0 == size1:
+        size1 = session.window.size
+    assert size1 == {"width": 100, "height": 200}
+
+    session.execute_script("window.resizeTo(200, 100)")
+    size2 = session.window.size
+    while size1 == size2:
+        size2 = session.window.size
+    assert size2 == {"width": 200, "height": 100}