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<!DOCTYPE html>
<html>
<!--
Copyright 2011 The Closure Library Authors. All Rights Reserved.
Use of this source code is governed by the Apache License, Version 2.0.
See the COPYING file for details.
-->
<!--
-->
<head>
<title>Closure Unit Tests - goog.testing.fs.FileWriter</title>
<script src="../../base.js"></script>
<script>
goog.require('goog.fs.DirectoryEntry.Behavior');
goog.require('goog.fs.FileSaver.EventType');
goog.require('goog.testing.AsyncTestCase');
goog.require('goog.testing.MockClock');
goog.require('goog.testing.fs.FileSystem');
goog.require('goog.testing.fs.Blob');
goog.require('goog.testing.jsunit');
</script>
</head>
<body>
<script>
var asyncTestCase = goog.testing.AsyncTestCase.createAndInstall();
var file, deferredWriter, mockClock;
function setUp() {
mockClock = new goog.testing.MockClock(true);
var fs = new goog.testing.fs.FileSystem();
var fileEntry = fs.getRoot().createDirectorySync('foo').createFileSync('bar');
deferredWriter = fileEntry.createWriter();
file = fileEntry.fileSync();
file.setDataInternal('');
}
function tearDown() {
mockClock.uninstall();
}
function testWrite() {
deferredWriter.
addCallback(goog.partial(checkReadyState,
goog.fs.FileSaver.ReadyState.INIT)).
addCallback(goog.partial(checkPositionAndLength, 0, 0)).
addCallback(goog.partial(checkLastModified, 0)).
addCallback(goog.partial(tick, 3)).
addCallback(goog.partial(writeString, 'hello')).
addCallback(goog.partial(checkPositionAndLength, 0, 0)).
addCallback(goog.partial(checkReadyState,
goog.fs.FileSaver.ReadyState.WRITING)).
addCallback(goog.partial(checkLastModified, 0)).
addCallback(goog.partial(waitForEvent,
goog.fs.FileSaver.EventType.WRITE_START)).
addCallback(goog.partial(checkLastModified, 0)).
addCallback(goog.partial(checkPositionAndLength, 0, 0)).
addCallback(goog.partial(waitForEvent,
goog.fs.FileSaver.EventType.WRITE)).
addCallback(function() { assertEquals('hello', file.toString()); }).
addCallback(goog.partial(checkPositionAndLength, 5, 5)).
addCallback(goog.partial(checkLastModified, 3)).
addCallback(tick).
addCallback(goog.partial(checkReadyState,
goog.fs.FileSaver.ReadyState.WRITING)).
addCallback(goog.partial(checkLastModified, 3)).
addCallback(goog.partial(waitForEvent,
goog.fs.FileSaver.EventType.WRITE_END)).
addCallback(goog.partial(checkLastModified, 3)).
addCallback(goog.partial(checkReadyState,
goog.fs.FileSaver.ReadyState.DONE)).
addCallback(goog.partial(checkLastModified, 3)).
addCallback(goog.partial(writeString, ' world')).
addCallback(goog.partial(checkPositionAndLength, 5, 5)).
addCallback(goog.partial(waitForEvent,
goog.fs.FileSaver.EventType.WRITE)).
addCallback(function() { assertEquals('hello world', file.toString()); }).
addCallback(goog.partial(checkPositionAndLength, 11, 11)).
addCallback(goog.partial(checkLastModified, 4)).
addBoth(continueTesting);
waitForAsync('testWrite');
}
function testSeek() {
deferredWriter.
addCallback(goog.partial(tick, 17)).
addCallback(goog.partial(writeAndWait, 'hello world')).
addCallback(tick).
addCallback(goog.partial(checkPositionAndLength, 11, 11)).
addCallback(function(writer) { writer.seek(6); }).
addCallback(goog.partial(checkPositionAndLength, 6, 11)).
addCallback(goog.partial(checkLastModified, 17)).
addCallback(goog.partial(writeAndWait, 'universe')).
addCallback(tick).
addCallback(function() {
assertEquals('hello universe', file.toString());
}).
addCallback(goog.partial(checkPositionAndLength, 14, 14)).
addCallback(function(writer) { writer.seek(500); }).
addCallback(goog.partial(checkPositionAndLength, 14, 14)).
addCallback(goog.partial(writeAndWait, '!')).
addCallback(tick).
addCallback(function() {
assertEquals('hello universe!',file.toString());
}).
addCallback(goog.partial(checkPositionAndLength, 15, 15)).
addCallback(function(writer) { writer.seek(-9); }).
addCallback(goog.partial(checkPositionAndLength, 6, 15)).
addCallback(goog.partial(writeAndWait, 'foo')).
addCallback(tick).
addCallback(function() {
assertEquals('hello fooverse!', file.toString());
}).
addCallback(goog.partial(checkPositionAndLength, 9, 15)).
addCallback(function(writer) { writer.seek(-500); }).
addCallback(goog.partial(checkPositionAndLength, 0, 15)).
addCallback(goog.partial(writeAndWait, 'bye-o')).
addCallback(tick).
addCallback(function() {
assertEquals('bye-o fooverse!', file.toString());
}).
addCallback(goog.partial(checkPositionAndLength, 5, 15)).
addCallback(goog.partial(checkLastModified, 21)).
addBoth(continueTesting);
waitForAsync('testSeek');
}
function testAbort() {
deferredWriter.
addCallback(goog.partial(tick, 13)).
addCallback(goog.partial(writeString, 'hello world')).
addCallback(function(writer) { writer.abort(); }).
addCallback(goog.partial(checkReadyState,
goog.fs.FileSaver.ReadyState.WRITING)).
addCallback(goog.partial(waitForError, goog.fs.Error.ErrorCode.ABORT)).
addCallback(goog.partial(checkReadyState,
goog.fs.FileSaver.ReadyState.WRITING)).
addCallback(goog.partial(waitForEvent,
goog.fs.FileSaver.EventType.ABORT)).
addCallback(goog.partial(checkReadyState,
goog.fs.FileSaver.ReadyState.WRITING)).
addCallback(goog.partial(waitForEvent,
goog.fs.FileSaver.EventType.WRITE_END)).
addCallback(goog.partial(checkReadyState,
goog.fs.FileSaver.ReadyState.DONE)).
addCallback(goog.partial(checkPositionAndLength, 0, 0)).
addCallback(goog.partial(checkLastModified, 0)).
addCallback(function() { assertEquals('', file.toString()); }).
addBoth(continueTesting);
waitForAsync('testAbort');
}
function testTruncate() {
deferredWriter.
addCallback(goog.partial(writeAndWait, 'hello world')).
addCallback(goog.partial(checkPositionAndLength, 11, 11)).
addCallback(function(writer) { writer.truncate(5); }).
addCallback(goog.partial(checkPositionAndLength, 11, 11)).
addCallback(goog.partial(checkReadyState,
goog.fs.FileSaver.ReadyState.WRITING)).
addCallback(goog.partial(waitForEvent,
goog.fs.FileSaver.EventType.WRITE_START)).
addCallback(goog.partial(tick, 7)).
addCallback(goog.partial(checkPositionAndLength, 11, 11)).
addCallback(goog.partial(checkLastModified, 0)).
addCallback(goog.partial(waitForEvent,
goog.fs.FileSaver.EventType.WRITE)).
addCallback(goog.partial(checkLastModified, 7)).
addCallback(tick).
addCallback(goog.partial(checkReadyState,
goog.fs.FileSaver.ReadyState.WRITING)).
addCallback(goog.partial(checkPositionAndLength, 5, 5)).
addCallback(function() { assertEquals('hello', file.toString()); }).
addCallback(goog.partial(waitForEvent,
goog.fs.FileSaver.EventType.WRITE_END)).
addCallback(goog.partial(checkReadyState,
goog.fs.FileSaver.ReadyState.DONE)).
addCallback(function(writer) { writer.truncate(10); }).
addCallback(goog.partial(waitForEvent,
goog.fs.FileSaver.EventType.WRITE_END)).
addCallback(goog.partial(checkPositionAndLength, 5, 10)).
addCallback(goog.partial(checkLastModified, 8)).
addCallback(function() {
assertEquals('hello\0\0\0\0\0', file.toString());
}).
addBoth(continueTesting);
waitForAsync('testTruncate');
}
function testAbortBeforeWrite() {
deferredWriter.
addCallback(function(writer) { writer.abort(); }).
addErrback(function(err) {
assertEquals(goog.fs.Error.ErrorCode.INVALID_STATE, err.code);
return true;
}).
addCallback(function(calledErrback) {
assertTrue(calledErrback);
}).
addBoth(continueTesting);
waitForAsync('testAbortBeforeWrite');
}
function testAbortAfterWrite() {
deferredWriter.
addCallback(goog.partial(writeAndWait, 'hello world')).
addCallback(function(writer) { writer.abort(); }).
addErrback(function(err) {
assertEquals(goog.fs.Error.ErrorCode.INVALID_STATE, err.code);
return true;
}).
addCallback(assertTrue).
addBoth(continueTesting);
waitForAsync('testAbortAfterWrite');
}
function testWriteDuringWrite() {
deferredWriter.
addCallback(goog.partial(writeString, 'hello world')).
addCallback(goog.partial(writeString, 'hello world')).
addErrback(function(err) {
assertEquals(goog.fs.Error.ErrorCode.INVALID_STATE, err.code);
return true;
}).
addCallback(assertTrue).
addBoth(continueTesting);
waitForAsync('testWriteDuringWrite');
}
function testSeekDuringWrite() {
deferredWriter.
addCallback(goog.partial(writeString, 'hello world')).
addCallback(function(writer) { writer.seek(5); }).
addErrback(function(err) {
assertEquals(goog.fs.Error.ErrorCode.INVALID_STATE, err.code);
return true;
}).
addCallback(assertTrue).
addBoth(continueTesting);
waitForAsync('testSeekDuringWrite');
}
function testTruncateDuringWrite() {
deferredWriter.
addCallback(goog.partial(writeString, 'hello world')).
addCallback(function(writer) { writer.truncate(5); }).
addErrback(function(err) {
assertEquals(goog.fs.Error.ErrorCode.INVALID_STATE, err.code);
return true;
}).
addCallback(assertTrue).
addBoth(continueTesting);
waitForAsync('testTruncateDuringWrite');
}
function tick(opt_tickCount) {
mockClock.tick(opt_tickCount);
}
function continueTesting(result) {
asyncTestCase.continueTesting();
if (result instanceof Error) {
throw result;
}
mockClock.tick();
}
function waitForAsync(msg) {
asyncTestCase.waitForAsync(msg);
// The mock clock must be advanced far enough that all timeouts added during
// callbacks will be triggered. 1000ms is much more than enough.
mockClock.tick(1000);
}
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.FileSaver.EventType.ERROR, function(e) {
assertEquals(type, target.getError().code);
d.callback(target);
});
return d;
}
function checkReadyState(expectedState, writer) {
assertEquals(expectedState, writer.getReadyState());
}
function checkPositionAndLength(expectedPosition, expectedLength, writer) {
assertEquals(expectedPosition, writer.getPosition());
assertEquals(expectedLength, writer.getLength());
}
function checkLastModified(expectedTime) {
assertEquals(expectedTime, file.lastModifiedDate.getTime());
}
function writeString(str, writer) {
writer.write(new goog.testing.fs.Blob(str));
}
function writeAndWait(str, writer) {
writeString(str, writer);
return waitForEvent(goog.fs.FileSaver.EventType.WRITE_END, writer);
}
</script>
</body>
</html>
|
