| // Copyright 2011 The Closure Library Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS-IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| goog.provide('goog.testing.fs.FileReaderTest'); |
| goog.setTestOnly('goog.testing.fs.FileReaderTest'); |
| |
| goog.require('goog.Timer'); |
| goog.require('goog.async.Deferred'); |
| goog.require('goog.events'); |
| goog.require('goog.fs.Error'); |
| goog.require('goog.fs.FileReader'); |
| goog.require('goog.fs.FileSaver'); |
| goog.require('goog.testing.AsyncTestCase'); |
| goog.require('goog.testing.fs.FileReader'); |
| goog.require('goog.testing.fs.FileSystem'); |
| goog.require('goog.testing.jsunit'); |
| |
| var asyncTestCase = goog.testing.AsyncTestCase.createAndInstall(); |
| var file, deferredReader; |
| var hasArrayBuffer = goog.isDef(goog.global.ArrayBuffer); |
| |
| function setUp() { |
| var fs = new goog.testing.fs.FileSystem(); |
| var fileEntry = fs.getRoot().createDirectorySync('foo').createFileSync('bar'); |
| file = fileEntry.fileSync(); |
| file.setDataInternal('test content'); |
| |
| deferredReader = new goog.async.Deferred(); |
| goog.Timer.callOnce( |
| goog.bind(deferredReader.callback, deferredReader, |
| new goog.testing.fs.FileReader())); |
| } |
| |
| function testRead() { |
| deferredReader. |
| addCallback(goog.partial(checkReadyState, |
| goog.fs.FileReader.ReadyState.INIT)). |
| addCallback(goog.partial(checkResult, undefined)). |
| addCallback(goog.partial(readAsText)). |
| addCallback(goog.partial(checkReadyState, |
| goog.fs.FileReader.ReadyState.LOADING)). |
| addCallback(goog.partial(checkResult, undefined)). |
| addCallback(goog.partial(waitForEvent, |
| goog.fs.FileReader.EventType.LOAD_START)). |
| addCallback(goog.partial(checkResult, undefined)). |
| addCallback(goog.partial(waitForEvent, |
| goog.fs.FileReader.EventType.LOAD)). |
| addCallback(goog.partial(checkResult, undefined)). |
| addCallback(goog.partial(waitForEvent, |
| goog.fs.FileReader.EventType.LOAD_END)). |
| addCallback(goog.partial(checkResult, file.toString())). |
| addCallback(goog.partial(checkReadyState, |
| goog.fs.FileReader.ReadyState.DONE)). |
| addBoth(continueTesting); |
| waitForAsync('testRead'); |
| } |
| |
| function testReadAsArrayBuffer() { |
| if (!hasArrayBuffer) { |
| // Skip if array buffer is not supported |
| return; |
| } |
| deferredReader. |
| addCallback(goog.partial(checkReadyState, |
| goog.fs.FileReader.ReadyState.INIT)). |
| addCallback(goog.partial(checkResult, undefined)). |
| addCallback(goog.partial(readAsArrayBuffer)). |
| addCallback(goog.partial(checkReadyState, |
| goog.fs.FileReader.ReadyState.LOADING)). |
| addCallback(goog.partial(checkResult, undefined)). |
| addCallback(goog.partial(waitForEvent, |
| goog.fs.FileReader.EventType.LOAD_START)). |
| addCallback(goog.partial(checkResult, undefined)). |
| addCallback(goog.partial(waitForEvent, |
| goog.fs.FileReader.EventType.LOAD)). |
| addCallback(goog.partial(checkResult, undefined)). |
| addCallback(goog.partial(waitForEvent, |
| goog.fs.FileReader.EventType.LOAD_END)). |
| addCallback(goog.partial(checkResult, file.toArrayBuffer())). |
| addCallback(goog.partial(checkReadyState, |
| goog.fs.FileReader.ReadyState.DONE)). |
| addBoth(continueTesting); |
| waitForAsync('testReadAsArrayBuffer'); |
| } |
| |
| function testReadAsDataUrl() { |
| deferredReader. |
| addCallback(goog.partial(checkReadyState, |
| goog.fs.FileReader.ReadyState.INIT)). |
| addCallback(goog.partial(checkResult, undefined)). |
| addCallback(goog.partial(readAsDataUrl)). |
| addCallback(goog.partial(checkReadyState, |
| goog.fs.FileReader.ReadyState.LOADING)). |
| addCallback(goog.partial(checkResult, undefined)). |
| addCallback(goog.partial(waitForEvent, |
| goog.fs.FileReader.EventType.LOAD_START)). |
| addCallback(goog.partial(checkResult, undefined)). |
| addCallback(goog.partial(waitForEvent, |
| goog.fs.FileReader.EventType.LOAD)). |
| addCallback(goog.partial(checkResult, undefined)). |
| addCallback(goog.partial(waitForEvent, |
| goog.fs.FileReader.EventType.LOAD_END)). |
| addCallback(goog.partial(checkResult, file.toDataUrl())). |
| addCallback(goog.partial(checkReadyState, |
| goog.fs.FileReader.ReadyState.DONE)). |
| addBoth(continueTesting); |
| waitForAsync('testReadAsDataUrl'); |
| } |
| |
| function testAbort() { |
| deferredReader. |
| addCallback(goog.partial(readAsText)). |
| addCallback(function(reader) { reader.abort(); }). |
| addCallback(goog.partial(checkReadyState, |
| goog.fs.FileReader.ReadyState.LOADING)). |
| addCallback(goog.partial(waitForError, goog.fs.Error.ErrorCode.ABORT)). |
| addCallback(goog.partial(checkReadyState, |
| goog.fs.FileReader.ReadyState.LOADING)). |
| addCallback(goog.partial(waitForEvent, |
| goog.fs.FileReader.EventType.ABORT)). |
| addCallback(goog.partial(checkReadyState, |
| goog.fs.FileReader.ReadyState.LOADING)). |
| addCallback(goog.partial(waitForEvent, |
| goog.fs.FileReader.EventType.LOAD_END)). |
| addCallback(goog.partial(checkReadyState, |
| goog.fs.FileReader.ReadyState.DONE)). |
| addCallback(goog.partial(checkResult, undefined)). |
| addBoth(continueTesting); |
| waitForAsync('testAbort'); |
| } |
| |
| function testAbortBeforeRead() { |
| deferredReader. |
| addCallback(function(reader) { reader.abort(); }). |
| addErrback(function(err) { |
| assertEquals(goog.fs.Error.ErrorCode.INVALID_STATE, err.code); |
| return true; |
| }). |
| addCallback(function(calledErrback) { |
| assertTrue(calledErrback); |
| }). |
| addBoth(continueTesting); |
| waitForAsync('testAbortBeforeRead'); |
| } |
| |
| function testReadDuringRead() { |
| deferredReader. |
| addCallback(goog.partial(readAsText)). |
| addCallback(goog.partial(readAsText)). |
| addErrback(function(err) { |
| assertEquals(goog.fs.Error.ErrorCode.INVALID_STATE, err.code); |
| return true; |
| }). |
| addCallback(assertTrue). |
| addBoth(continueTesting); |
| waitForAsync('testReadDuringRead'); |
| } |
| |
| function continueTesting(result) { |
| asyncTestCase.continueTesting(); |
| if (result instanceof Error) { |
| throw result; |
| } |
| } |
| |
| function waitForAsync(msg) { |
| asyncTestCase.waitForAsync(msg); |
| } |
| |
| function waitForEvent(type, target) { |
| var d = new goog.async.Deferred(); |
| goog.events.listenOnce(target, type, goog.bind(d.callback, d, target)); |
| return d; |
| } |
| |
| function waitForError(type, target) { |
| var d = new goog.async.Deferred(); |
| goog.events.listenOnce( |
| target, goog.fs.FileReader.EventType.ERROR, function(e) { |
| assertEquals(type, target.getError().code); |
| d.callback(target); |
| }); |
| return d; |
| } |
| |
| function readAsText(reader) { |
| reader.readAsText(file); |
| } |
| |
| function readAsArrayBuffer(reader) { |
| reader.readAsArrayBuffer(file); |
| } |
| |
| function readAsDataUrl(reader) { |
| reader.readAsDataUrl(file); |
| } |
| |
| function readAndWait(reader) { |
| readAsText(reader); |
| return waitForEvent(goog.fs.FileSaver.EventType.LOAD_END, reader); |
| } |
| |
| function checkResult(expectedResult, reader) { |
| checkEquals(expectedResult, reader.getResult()); |
| } |
| |
| function checkEquals(a, b) { |
| if (hasArrayBuffer && |
| a instanceof ArrayBuffer && b instanceof ArrayBuffer) { |
| assertEquals(a.byteLength, b.byteLength); |
| var viewA = new Uint8Array(a); |
| var viewB = new Uint8Array(b); |
| for (var i = 0; i < a.byteLength; i++) { |
| assertEquals(viewA[i], viewB[i]); |
| } |
| } else { |
| assertEquals(a, b); |
| } |
| } |
| |
| function checkReadyState(expectedState, reader) { |
| assertEquals(expectedState, reader.getReadyState()); |
| } |