2016-07-27 06:37:49 +00:00
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<!DOCTYPE html>
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<script src='../resources/testharness.js'></script>
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<script src='../resources/testharnessreport.js'></script>
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<script>
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function printMethodError(method, target)
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{
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try {
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method.call(target);
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assert_unreached();
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} catch(e) {
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console.log(e);
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}
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}
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function printPromiseMethodError(method, target)
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{
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return method.call(target).then(assert_unreached, (e) => {
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console.log(e);
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});
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}
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function printGetterError(object, getterName, target)
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{
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const getter = Object.getOwnPropertyDescriptor(Object.getPrototypeOf(object), getterName).get;
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printMethodError(getter, target);
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}
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function printPromiseGetterError(object, getterName, target)
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{
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const getter = Object.getOwnPropertyDescriptor(Object.getPrototypeOf(object), getterName).get;
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printPromiseMethodError(getter, target);
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}
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promise_test(function(test) {
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// This test prints exceptions to check the format of their messages.
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var controller;
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var stream = new ReadableStream({
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start: (c) => {
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controller = c;
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}
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});
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var reader = stream.getReader();
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var results = [];
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results.push(printPromiseMethodError(stream.cancel, controller));
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results.push(printMethodError(stream.getReader, controller));
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results.push(printMethodError(stream.tee, controller));
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results.push(printGetterError(stream, "locked", controller));
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results.push(printMethodError(controller.enqueue, reader));
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results.push(printMethodError(controller.error, reader));
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results.push(printMethodError(controller.close, reader));
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results.push(printGetterError(controller, "desiredSize", reader));
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results.push(printPromiseMethodError(reader.cancel, stream));
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results.push(printPromiseMethodError(reader.read, stream));
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results.push(printMethodError(reader.releaseLock, stream));
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results.push(printPromiseGetterError(reader, "closed", stream));
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return Promise.all(results);
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2016-07-28 15:43:42 +00:00
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}, "Exercising TypeError messages in ReadableStream, ReadableStreamDefaultController and ReadableStreamDefaultReader");
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2016-07-27 06:37:49 +00:00
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</script>
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