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<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
var testScenarios = [
{testDescription: "Test default context creation attributes",
canvasContextAttributes: {},
expectedContextAttributes: {alpha: true, desynchronized: false, willReadFrequently: false}},
{testDescription: "Test context creation attributes alpha: true",
canvasContextAttributes: {alpha: true},
expectedContextAttributes: {alpha: true}},
{testDescription: "Test context creation attributes alpha: false",
canvasContextAttributes: {alpha: false},
expectedContextAttributes: {alpha: false}},
{testDescription: "Test context creation attributes desynchronized: false",
canvasContextAttributes: {desynchronized: false},
expectedContextAttributes: {desynchronized: false}},
{testDescription: "Test context creation attributes willReadFrequently: true",
canvasContextAttributes: {willReadFrequently: true},
expectedContextAttributes: {willReadFrequently: true}},
];
function runTestScenario(testScenario) {
var t = test(function() {
var canvas = document. createElement('canvas');
var ctx = canvas.getContext('2d', testScenario.canvasContextAttributes);
var contextAttributes = ctx.getContextAttributes();
if (testScenario.expectedContextAttributes.alpha !== undefined) {
assert_equals(contextAttributes.alpha,
testScenario.expectedContextAttributes.alpha);
}
if (testScenario.expectedContextAttributes.desynchronized !== undefined) {
assert_equals(contextAttributes.desynchronized,
testScenario.expectedContextAttributes.desynchronized);
}
}, testScenario.testDescription);
}
function runAllTests() {
for (var i = 0; i < testScenarios.length; i++)
runTestScenario(testScenarios[i]);
}
runAllTests();
</script>
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