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// Test that constructor for the node with name |nodeName| handles the
// various possible values for channelCount, channelCountMode, and
// channelInterpretation.
// The |should| parameter is the test function from new |Audit|.
function testAudioNodeOptions(should, context, nodeName, expectedNodeOptions) {
if (expectedNodeOptions === undefined)
expectedNodeOptions = {};
let node;
// Test that we can set channelCount and that errors are thrown for
// invalid values
let testChannelCount = 17;
if (expectedNodeOptions.channelCount) {
testChannelCount = expectedNodeOptions.channelCount.value;
}
should(
() => {
node = new window[nodeName](
context, Object.assign({}, expectedNodeOptions.additionalOptions, {
channelCount: testChannelCount
}));
},
'new ' + nodeName + '(c, {channelCount: ' + testChannelCount + '})')
.notThrow();
should(node.channelCount, 'node.channelCount').beEqualTo(testChannelCount);
if (expectedNodeOptions.channelCount &&
expectedNodeOptions.channelCount.isFixed) {
// The channel count is fixed. Verify that we throw an error if
// we try to change it. Arbitrarily set the count to be one more
// than the expected value.
testChannelCount = expectedNodeOptions.channelCount.value + 1;
should(
() => {
node = new window[nodeName](
context,
Object.assign(
{}, expectedNodeOptions.additionalOptions,
{channelCount: testChannelCount}));
},
'new ' + nodeName + '(c, {channelCount: ' + testChannelCount + '})')
.throw(DOMException,
expectedNodeOptions.channelCount.exceptionType);
// And test that setting it to the fixed value does not throw.
testChannelCount = expectedNodeOptions.channelCount.value;
should(
() => {
node = new window[nodeName](
context,
Object.assign(
{}, expectedNodeOptions.additionalOptions,
{channelCount: testChannelCount}));
node.channelCount = testChannelCount;
},
'(new ' + nodeName + '(c, {channelCount: ' + testChannelCount + '})).channelCount = ' + testChannelCount)
.notThrow();
} else {
// The channel count is not fixed. Try to set the count to invalid
// values and make sure an error is thrown.
[0, 99].forEach(testValue => {
should(() => {
node = new window[nodeName](
context, Object.assign({}, expectedNodeOptions.additionalOptions, {
channelCount: testValue
}));
}, `new ${nodeName}(c, {channelCount: ${testValue}})`)
.throw(DOMException, 'NotSupportedError');
});
}
// Test channelCountMode
let testChannelCountMode = 'max';
if (expectedNodeOptions.channelCountMode) {
testChannelCountMode = expectedNodeOptions.channelCountMode.value;
}
should(
() => {
node = new window[nodeName](
context, Object.assign({}, expectedNodeOptions.additionalOptions, {
channelCountMode: testChannelCountMode
}));
},
'new ' + nodeName + '(c, {channelCountMode: "' + testChannelCountMode +
'"}')
.notThrow();
should(node.channelCountMode, 'node.channelCountMode')
.beEqualTo(testChannelCountMode);
if (expectedNodeOptions.channelCountMode &&
expectedNodeOptions.channelCountMode.isFixed) {
// Channel count mode is fixed. Test setting to something else throws.
['max', 'clamped-max', 'explicit'].forEach(testValue => {
if (testValue !== expectedNodeOptions.channelCountMode.value) {
should(
() => {
node = new window[nodeName](
context,
Object.assign(
{}, expectedNodeOptions.additionalOptions,
{channelCountMode: testValue}));
},
`new ${nodeName}(c, {channelCountMode: "${testValue}"})`)
.throw(DOMException,
expectedNodeOptions.channelCountMode.exceptionType);
} else {
// Test that explicitly setting the the fixed value is allowed.
should(
() => {
node = new window[nodeName](
context,
Object.assign(
{}, expectedNodeOptions.additionalOptions,
{channelCountMode: testValue}));
node.channelCountMode = testValue;
},
`(new ${nodeName}(c, {channelCountMode: "${testValue}"})).channelCountMode = "${testValue}"`)
.notThrow();
}
});
} else {
// Mode is not fixed. Verify that we can set the mode to all valid
// values, and that we throw for invalid values.
let testValues = ['max', 'clamped-max', 'explicit'];
testValues.forEach(testValue => {
should(() => {
node = new window[nodeName](
context, Object.assign({}, expectedNodeOptions.additionalOptions, {
channelCountMode: testValue
}));
}, `new ${nodeName}(c, {channelCountMode: "${testValue}"})`).notThrow();
should(
node.channelCountMode, 'node.channelCountMode after valid setter')
.beEqualTo(testValue);
});
should(
() => {
node = new window[nodeName](
context,
Object.assign(
{}, expectedNodeOptions.additionalOptions,
{channelCountMode: 'foobar'}));
},
'new ' + nodeName + '(c, {channelCountMode: "foobar"}')
.throw(TypeError);
should(node.channelCountMode, 'node.channelCountMode after invalid setter')
.beEqualTo(testValues[testValues.length - 1]);
}
// Test channelInterpretation
if (expectedNodeOptions.channelInterpretation &&
expectedNodeOptions.channelInterpretation.isFixed) {
// The channel interpretation is fixed. Verify that we throw an
// error if we try to change it.
['speakers', 'discrete'].forEach(testValue => {
if (testValue !== expectedNodeOptions.channelInterpretation.value) {
should(
() => {
node = new window[nodeName](
context,
Object.assign(
{}, expectedNodeOptions.additionOptions,
{channelInterpretation: testValue}));
},
`new ${nodeName}(c, {channelInterpretation: "${testValue}"})`)
.throw(DOMException,
expectedNodeOptions.channelCountMode.exceptionType);
} else {
// Check that assigning the fixed value is OK.
should(
() => {
node = new window[nodeName](
context,
Object.assign(
{}, expectedNodeOptions.additionOptions,
{channelInterpretation: testValue}));
node.channelInterpretation = testValue;
},
`(new ${nodeName}(c, {channelInterpretation: "${testValue}"})).channelInterpretation = "${testValue}"`)
.notThrow();
}
});
} else {
// Channel interpretation is not fixed. Verify that we can set it
// to all possible values.
should(
() => {
node = new window[nodeName](
context,
Object.assign(
{}, expectedNodeOptions.additionalOptions,
{channelInterpretation: 'speakers'}));
},
'new ' + nodeName + '(c, {channelInterpretation: "speakers"})')
.notThrow();
should(node.channelInterpretation, 'node.channelInterpretation')
.beEqualTo('speakers');
should(
() => {
node = new window[nodeName](
context,
Object.assign(
{}, expectedNodeOptions.additionalOptions,
{channelInterpretation: 'discrete'}));
},
'new ' + nodeName + '(c, {channelInterpretation: "discrete"})')
.notThrow();
should(node.channelInterpretation, 'node.channelInterpretation')
.beEqualTo('discrete');
should(
() => {
node = new window[nodeName](
context,
Object.assign(
{}, expectedNodeOptions.additionalOptions,
{channelInterpretation: 'foobar'}));
},
'new ' + nodeName + '(c, {channelInterpretation: "foobar"})')
.throw(TypeError);
should(
node.channelInterpretation,
'node.channelInterpretation after invalid setter')
.beEqualTo('discrete');
}
}
function initializeContext(should) {
let c;
should(() => {
c = new OfflineAudioContext(1, 1, 48000);
}, 'context = new OfflineAudioContext(...)').notThrow();
return c;
}
function testInvalidConstructor(should, name, context) {
should(() => {
new window[name]();
}, 'new ' + name + '()').throw(TypeError);
should(() => {
new window[name](1);
}, 'new ' + name + '(1)').throw(TypeError);
should(() => {
new window[name](context, 42);
}, 'new ' + name + '(context, 42)').throw(TypeError);
}
function testDefaultConstructor(should, name, context, options) {
let node;
let message = options.prefix + ' = new ' + name + '(context';
if (options.constructorOptions)
message += ', ' + JSON.stringify(options.constructorOptions);
message += ')'
should(() => {
node = new window[name](context, options.constructorOptions);
}, message).notThrow();
should(node instanceof window[name], options.prefix + ' instanceof ' + name)
.beEqualTo(true);
should(node.numberOfInputs, options.prefix + '.numberOfInputs')
.beEqualTo(options.numberOfInputs);
should(node.numberOfOutputs, options.prefix + '.numberOfOutputs')
.beEqualTo(options.numberOfOutputs);
should(node.channelCount, options.prefix + '.channelCount')
.beEqualTo(options.channelCount);
should(node.channelCountMode, options.prefix + '.channelCountMode')
.beEqualTo(options.channelCountMode);
should(node.channelInterpretation, options.prefix + '.channelInterpretation')
.beEqualTo(options.channelInterpretation);
return node;
}
function testDefaultAttributes(should, node, prefix, items) {
items.forEach((item) => {
let attr = node[item.name];
if (attr instanceof AudioParam) {
should(attr.value, prefix + '.' + item.name + '.value')
.beEqualTo(item.value);
} else {
should(attr, prefix + '.' + item.name).beEqualTo(item.value);
}
});
}