servo/tests/wpt/web-platform-tests/streams/resources/test-utils.js

43 lines
1.4 KiB
JavaScript

'use strict';
self.getterRejects = (t, obj, getterName, target) => {
const getter = Object.getOwnPropertyDescriptor(obj, getterName).get;
return promise_rejects(t, new TypeError(), getter.call(target));
};
self.methodRejects = (t, obj, methodName, target) => {
const method = obj[methodName];
return promise_rejects(t, new TypeError(), method.call(target));
};
self.getterThrows = (obj, getterName, target) => {
const getter = Object.getOwnPropertyDescriptor(obj, getterName).get;
assert_throws(new TypeError(), () => getter.call(target), getterName + ' should throw a TypeError');
};
self.methodThrows = (obj, methodName, target, args) => {
const method = obj[methodName];
assert_throws(new TypeError(), () => method.apply(target, args), methodName + ' should throw a TypeError');
};
self.garbageCollect = () => {
if (self.gc) {
// Use --expose_gc for V8 (and Node.js)
// Exposed in SpiderMonkey shell as well
self.gc();
} else if (self.GCController) {
// Present in some WebKit development environments
GCController.collect();
} else {
/* eslint-disable no-console */
console.warn('Tests are running without the ability to do manual garbage collection. They will still work, but ' +
'coverage will be suboptimal.');
/* eslint-enable no-console */
}
};
self.delay = ms => new Promise(resolve => step_timeout(resolve, ms));