Bug 1534117 [wpt PR 15705] - Screen Orientation: active lock orientation algorithm tests, a=testonly

Automatic update from web-platform-tests Active lock orientation algorithm tests -- Fragment navigation test -- Refactoring -- Suggested edits -- Add element that represents the actual fragment -- wpt-commits: 6b4f997ddf44dfa8de0ebc32efce8bf96c87ba8c, 2efa6123606550ceb0d42151640efa8a80b3533b, 186650ff075e14ffdc8b6be4c5fa9156add7e243, de041de96601e556b6788815511fc60f8b220745, e9cad1bbdac87dc162fb662d5dca0f2cf734b831 wpt-pr: 15705
2019-04-18 11:17:12 +00:00 · 2019-04-18 11:17:12 +00:00 · b8467f8865
--- a/testing/web-platform/tests/screen-orientation/active-lock.html
+++ b/testing/web-platform/tests/screen-orientation/active-lock.html
@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+<p id="#fragment"></p>
+<script>
+  promise_test(async t => {
+    await test_driver.bless("request full screen", () => {
+      return document.documentElement.requestFullscreen();
+    });
+    const fragment = document.createElement("p");
+    fragment.id = "fragment";
+    document.body.appendChild(fragment);
+    const { type: preType } = screen.orientation;
+    const isPortrait = preType.startsWith("portrait");
+    const newType = `${isPortrait ? "landscape" : "portrait"}-primary`;
+    const p = screen.orientation.lock(newType);
+    screen.orientation.onchange = t.unreached_func(
+      "change event must not fire"
+    );
+    window.location.href = "#fragment";
+    await p;
+  }, "When performing a fragment navigation, the orientation must not change or unlock");
+</script>