| <!DOCTYPE html> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script> |
| test(() => { |
| screen.orientation.unlock(); |
| }, "Test that screen.orientation.unlock() doesn't throw when there is no lock"); |
| |
| test(() => { |
| const value = screen.orientation.unlock(); |
| assert_equals(value, undefined); |
| }, "Test that screen.orientation.unlock() returns a void value"); |
| |
| promise_test(async t => { |
| const value = await screen.orientation.lock('any'); |
| assert_equals(value, undefined); |
| }, "Test that screen.orientation.lock returns a promise which will be fulfilled with a void value."); |
| |
| promise_test(async t => { |
| const orientations = [ |
| 'any', |
| 'natural', |
| 'portrait', |
| 'landscape', |
| 'portrait-secondary', |
| 'landscape-primary', |
| 'landscape-secondary', |
| 'portrait-primary', |
| ]; |
| for (const orientation of orientations) { |
| const promiseToChange = screen.orientation.lock(orientation); |
| assert_true(promiseToChange instanceof Promise, "Expected an instance of Promise"); |
| await promiseToChange; |
| const type = screen.orientation.type; |
| switch (orientation) { |
| case 'any': |
| break; |
| case 'natural': |
| assert_true(type == "portrait-primary" || type == "landscape-primary"); |
| break; |
| case 'portrait': |
| assert_true(type == "portrait-primary" || type == "portrait-secondary"); |
| break; |
| case 'landscape': |
| assert_true(type == "landscape-primary" || type == "landscape-secondary"); |
| break; |
| default: |
| assert_equals(type, orientation, "Expected orientation to change"); |
| break; |
| } |
| } |
| screen.orientation.unlock(); |
| }, "Test that screen.orientation.lock returns a pending promise."); |
| |
| promise_test(async t => { |
| const preType = screen.orientation.type; |
| const isPortrait = preType.includes("portrait"); |
| const newType = `${ isPortrait ? "landscape" : "portrait" }-primary`; |
| const p = screen.orientation.lock(newType); |
| assert_equals(screen.orientation.type, preType, "Must not change orientation until next spin of event loop"); |
| await p; |
| assert_equals(screen.orientation.type, newType); |
| }, "Test that screen.orientation.lock() is actually async"); |
| </script> |
