mozilla-central/testing/web-platform/tests/screen-orientation/orientation-reading.html

Source code

Revision control

Copy as Markdown

Other Tools

Test Info: Warnings

<!DOCTYPE html>
<meta charset="utf-8" />
<meta viewport="width=device-width, initial-scale=1" />
<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>
<script type="module">
"use strict";
import {
makeCleanup,
getOppositeOrientation,
} from "./resources/orientation-utils.js";
test(() => {
assert_true("type" in screen.orientation, ".type must be present");
assert_true("angle" in screen.orientation, ".angle must be present");
}, "screen.orientation attributes are present");
async function testExpectedOrientationAngles(expectedAngles) {
for (const [orientation, expectedAngle] of Object.entries(expectedAngles)) {
try {
if (screen.orientation.type !== orientation) {
await screen.orientation.lock(orientation);
}
assert_equals(
screen.orientation.angle,
expectedAngle,
`Orientation angle for '${orientation}' must be ${expectedAngle} degrees`
);
} catch (err) {
// implementation might not support locking to this orientation
}
}
}
promise_test(async (t) => {
t.add_cleanup(makeCleanup());
await test_driver.bless("request full screen");
await document.documentElement.requestFullscreen();
const expectedAnglesPortrait = {
"portrait-primary": 0,
"landscape-primary": 90,
"portrait-secondary": 180,
"landscape-secondary": 270,
};
await testExpectedOrientationAngles(expectedAnglesPortrait);
}, "Test the orientations and associated angles when the natural orientation is 'portrait'");
promise_test(async (t) => {
t.add_cleanup(makeCleanup());
await test_driver.bless("request full screen");
await document.documentElement.requestFullscreen();
const expectedAnglesLandscape = {
"landscape-primary": 0,
"portrait-primary": 90,
"landscape-secondary": 180,
"portrait-secondary": 270,
};
await testExpectedOrientationAngles(expectedAnglesLandscape);
}, "Test the orientations and associated angles when the natural orientation is 'landscape'");
test(() => {
const { angle, type } = screen.orientation;
assert_throws_js(
TypeError,
() => {
screen.orientation.type = "foo";
},
"throws when setting ScreenOrientation.type to a string in strict mode"
);
assert_throws_js(
TypeError,
() => {
screen.orientation.angle = 42;
},
"throws when setting ScreenOrientation.angle to a number in strict mode"
);
assert_equals(screen.orientation.type, type);
assert_equals(screen.orientation.angle, angle);
}, "Test that ScreenOrientation properties are not writable");
test(() => {
assert_equals(screen.orientation, screen.orientation);
}, "Test that ScreenOrientation is always the same object");
promise_test(async (t) => {
t.add_cleanup(makeCleanup());
await test_driver.bless("request full screen");
await document.documentElement.requestFullscreen();
const initialType = screen.orientation.type;
const initialAngle = screen.orientation.angle;
const orientationWatcher = new EventWatcher(t, screen.orientation, "change");
const newOrientationType = getOppositeOrientation();
// change event is fired before resolving promise by lock.
const event = await Promise.race([
orientationWatcher.wait_for("change"),
screen.orientation.lock(newOrientationType),
]);
assert_true(event instanceof Event, "expected event");
assert_not_equals(
screen.orientation.type,
initialType,
".type must change"
);
assert_not_equals(
screen.orientation.angle,
initialAngle,
".angle must change"
);
}, "Test that ScreenOrientation's attribute values change after 'change' event fires");
</script>