gecko-dev/dom/promise/tests/file_promise_retval_tests.js

59 строки
1.9 KiB
JavaScript

/*
* This file is meant to provide common infrastructure for several consumers.
* The consumer is expected to define the following things:
*
* 1) A verifyPromiseGlobal function which does whatever test the consumer
* wants. This function is passed a promise and the global whose
* TestFunctions was used to get the promise.
* 2) A expectedExceptionGlobal function which is handed the global whose
* TestFunctions was used to trigger the exception and should return the
* global the exception is expected to live in.
* 3) A subframe (frames[0]) which can be used as a second global for creating
* promises.
*/
/* global verifyPromiseGlobal, expectedExceptionGlobal */
var label = "parent";
function testThrownException(global) {
var p = global.TestFunctions.throwToRejectPromise();
verifyPromiseGlobal(p, global, "throwToRejectPromise return value");
return p
.then(() => {})
.catch(err => {
var expected = expectedExceptionGlobal(global);
is(
SpecialPowers.unwrap(SpecialPowers.Cu.getGlobalForObject(err)),
expected,
"Should have an exception object from the right global too"
);
ok(
err instanceof expected.DOMException,
"Should have a DOMException here"
);
is(
Object.getPrototypeOf(err),
expected.DOMException.prototype,
"Should have a DOMException from the right global"
);
is(err.name, "InvalidStateError", "Should have the right DOMException");
});
}
function runPromiseRetvalTests(finishFunc) {
Promise.resolve()
.then(testThrownException.bind(undefined, window))
.then(testThrownException.bind(undefined, frames[0]))
.then(finishFunc)
.catch(function(e) {
ok(
false,
`Exception thrown: ${e}@${location.pathname}:${e.lineNumber}:${
e.columnNumber
}`
);
finishFunc();
});
}