Bug 1636105 [wpt PR 23456] - [WebDriver] Add test for triple click, a=testonly

Automatic update from web-platform-tests
[WebDriver] Add test for triple click (#23456)

This test does a triple-click and then checks that the entire paragraph
has been selected.

This currently fails in all drivers.

--

wpt-commits: 3b5a990d7cbbb6fc196282a3f99c2c1bf9f04915
wpt-pr: 23456

testing/web-platform/tests/webdriver/tests/perform_actions/pointer_tripleclick.py

@@ -0,0 +1,34 @@
+from tests.perform_actions.support.refine import filter_dict, get_events
+from tests.support.asserts import assert_move_to_coordinates
+from tests.support.inline import inline
+
+lots_of_text = "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor "\
+               "incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud "\
+               " exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat."
+
+
+def test_tripleclick_at_coordinates(session, mouse_chain):
+    """
+        This test does a triple click on a coordinate. On desktop platforms
+        this will select a paragraph. On mobile this will not have the same
+        desired outcome as taps are handled differently on mobile.
+    """
+    session.url = inline("""<div>
+          {}
+        </div>""".format(lots_of_text))
+    div = session.find.css("div", all=False)
+    div_rect = div.rect
+    div_centre = {
+        "x": div_rect["x"] + div_rect["width"]/2,
+        "y": div_rect["y"] + div_rect["height"]/2
+    }
+    mouse_chain \
+        .pointer_move(div_centre["x"], div_centre["y"]) \
+        .click() \
+        .click() \
+        .click() \
+        .perform()
+
+    actual_text = session.execute_script("return document.getSelection().toString();")
+
+    assert lots_of_text == actual_text