| <!DOCTYPE html> |
| <title>FileReader: starting new reads while one is in progress</title> |
| <link rel="author" title="Yinkan Li" href="mailto:liyinkan.biz@gmail.com"> |
| <link rel="help" href="http://dev.w3.org/2006/webapi/FileAPI/#MultipleReads"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <div id="log"></div> |
| <script> |
| test(function() { |
| var blob_1 = new Blob(['TEST000000001']) |
| var blob_2 = new Blob(['TEST000000002']) |
| var reader = new FileReader(); |
| reader.readAsText(blob_1) |
| assert_equals(reader.readyState, FileReader.LOADING, "readyState Must be LOADING") |
| assert_throws_dom("InvalidStateError", function () { |
| reader.readAsText(blob_2) |
| }) |
| }, 'test FileReader InvalidStateError exception for readAsText'); |
| |
| test(function() { |
| var blob_1 = new Blob(['TEST000000001']) |
| var blob_2 = new Blob(['TEST000000002']) |
| var reader = new FileReader(); |
| reader.readAsDataURL(blob_1) |
| assert_equals(reader.readyState, FileReader.LOADING, "readyState Must be LOADING") |
| assert_throws_dom("InvalidStateError", function () { |
| reader.readAsDataURL(blob_2) |
| }) |
| }, 'test FileReader InvalidStateError exception for readAsDataURL'); |
| |
| test(function() { |
| var blob_1 = new Blob(['TEST000000001']) |
| var blob_2 = new Blob(['TEST000000002']) |
| var reader = new FileReader(); |
| reader.readAsArrayBuffer(blob_1) |
| assert_equals(reader.readyState, FileReader.LOADING, "readyState Must be LOADING") |
| assert_throws_dom("InvalidStateError", function () { |
| reader.readAsArrayBuffer(blob_2) |
| }) |
| }, 'test FileReader InvalidStateError exception for readAsArrayBuffer'); |
| |
| async_test(function() { |
| var blob_1 = new Blob(['TEST000000001']) |
| var blob_2 = new Blob(['TEST000000002']) |
| var reader = new FileReader(); |
| var triggered = false; |
| reader.onloadstart = this.step_func_done(function() { |
| assert_false(triggered, "Only one loadstart event should be dispatched"); |
| triggered = true; |
| assert_equals(reader.readyState, FileReader.LOADING, |
| "readyState must be LOADING") |
| assert_throws_dom("InvalidStateError", function () { |
| reader.readAsArrayBuffer(blob_2) |
| }) |
| }); |
| reader.readAsArrayBuffer(blob_1) |
| assert_equals(reader.readyState, FileReader.LOADING, "readyState Must be LOADING") |
| }, 'test FileReader InvalidStateError exception in onloadstart event for readAsArrayBuffer'); |
| |
| async_test(function() { |
| var blob_1 = new Blob(['TEST000000001']) |
| var blob_2 = new Blob(['TEST000000002']) |
| var reader = new FileReader(); |
| reader.onloadend = this.step_func_done(function() { |
| assert_equals(reader.readyState, FileReader.DONE, |
| "readyState must be DONE") |
| reader.readAsArrayBuffer(blob_2) |
| assert_equals(reader.readyState, FileReader.LOADING, "readyState Must be LOADING") |
| }); |
| reader.readAsArrayBuffer(blob_1) |
| assert_equals(reader.readyState, FileReader.LOADING, "readyState Must be LOADING") |
| }, 'test FileReader no InvalidStateError exception in loadend event handler for readAsArrayBuffer'); |
| |
| async_test(function() { |
| var blob_1 = new Blob([new Uint8Array(0x414141)]); |
| var blob_2 = new Blob(['TEST000000002']); |
| var reader = new FileReader(); |
| reader.onloadstart = this.step_func(function() { |
| reader.abort(); |
| reader.onloadstart = null; |
| reader.onloadend = this.step_func_done(function() { |
| assert_equals('TEST000000002', reader.result); |
| }); |
| reader.readAsText(blob_2); |
| }); |
| reader.readAsText(blob_1); |
| }, 'test abort and restart in onloadstart event for readAsText'); |
| |
| </script> |
