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<!doctype html>
<title>MediaStreamTrack and InputDeviceInfo GetCapabilities</title>
<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 src=permission-helper.js></script>
<script>
const audioProperties = [
{name: "sampleRate", type: "number"},
{name: "sampleSize", type: "number"},
{name: "echoCancellation", type: "boolean"},
{name: "autoGainControl", type: "boolean"},
{name: "noiseSuppression", type: "boolean"},
{name: "latency", type: "number"},
{name: "channelCount", type: "number"},
{name: "deviceId", type: "string"},
{name: "groupId", type: "string"}
];
const videoProperties = [
{name: "width", type: "number"},
{name: "height", type: "number"},
{name: "aspectRatio", type: "number"},
{name: "frameRate", type: "number"},
{name: "facingMode", type: "enum-any", validValues: ["user", "environment", "left", "right"]},
{name: "resizeMode", type: "enum-all", validValues: ["none", "crop-and-scale"]},
{name: "deviceId", type: "string"},
{name: "groupId", type: "string"},
];
function verifyBooleanCapability(capability) {
assert_less_than_equal(capability.length, 2);
capability.forEach(c => assert_equals(typeof c, "boolean"));
}
function verifyNumberCapability(capability) {
assert_equals(typeof capability, "object");
assert_equals(Object.keys(capability).length, 2);
assert_true(capability.hasOwnProperty('min'));
assert_true(capability.hasOwnProperty('max'));
assert_less_than_equal(capability.min, capability.max);
}
// Verify that any value provided by an enum capability is in the set of valid
// values.
function verifyEnumAnyCapability(capability, enumMembers) {
capability.forEach(c => {
assert_equals(typeof c, "string");
assert_in_array(c, enumMembers);
});
}
// Verify that all required values are supported by a capability.
function verifyEnumAllCapability(capability, enumMembers, testNamePrefix) {
enumMembers.forEach(member => {
test(() => {
assert_in_array(member, capability);
}, testNamePrefix + " Value: " + member);
});
}
function testCapabilities(capabilities, property, testNamePrefix) {
let testName = testNamePrefix + " " + property.name;
test(() => {
assert_true(capabilities.hasOwnProperty(property.name));
}, testName + " property present.");
const capability = capabilities[property.name];
testName += " properly supported.";
if (property.type == "string") {
test(() => {
assert_equals(typeof capability, "string");
}, testName);
}
if (property.type == "boolean") {
test(() => {
verifyBooleanCapability(capability);
}, testName);
}
if (property.type == "number") {
test(() => {
verifyNumberCapability(capability);
}, testName);
}
if (property.type.startsWith("enum")) {
test(() => {
verifyEnumAnyCapability(capability, property.validValues);
}, testName);
if (property.type == "enum-all") {
verifyEnumAllCapability(capability, property.validValues, testName);
}
}
}
{
audioProperties.forEach((property, i) => {
promise_test(async t => {
if (i === 0) await setMediaPermission("granted", ["microphone"]);
const stream = await navigator.mediaDevices.getUserMedia({audio: true});
t.add_cleanup(() => stream.getAudioTracks()[0].stop());
const audioCapabilities = stream.getAudioTracks()[0].getCapabilities();
testCapabilities(audioCapabilities, property, "Audio track getCapabilities()");
}, "Setup audio MediaStreamTrack getCapabilities() test for " + property.name);
});
videoProperties.forEach(property => {
promise_test(async t => {
const stream = await navigator.mediaDevices.getUserMedia({video: true});
t.add_cleanup(() => stream.getVideoTracks()[0].stop());
const audioCapabilities = stream.getVideoTracks()[0].getCapabilities();
testCapabilities(audioCapabilities, property, "Video track getCapabilities()");
}, "Setup video MediaStreamTrack getCapabilities() test for " + property.name);
});
}
{
audioProperties.forEach(property => {
promise_test(async t => {
const devices = await navigator.mediaDevices.enumerateDevices();
for (const device of devices) {
// Test only one device.
if (device.kind == "audioinput") {
assert_inherits(device, "getCapabilities");
const capabilities = device.getCapabilities();
testCapabilities(capabilities, property, "Audio device getCapabilities()");
break;
}
}
}, "Setup audio InputDeviceInfo getCapabilities() test for " + property.name);
});
videoProperties.forEach(property => {
promise_test(async t => {
const devices = await navigator.mediaDevices.enumerateDevices();
for (const device of devices) {
// Test only one device.
if (device.kind == "videoinput") {
assert_inherits(device, "getCapabilities");
const capabilities = device.getCapabilities();
testCapabilities(capabilities, property, "Video device getCapabilities()");
break;
}
}
}, "Setup video InputDeviceInfo getCapabilities() test for " + property.name);
});
}
</script>
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