Bug 1400098 - test_fileapi.html rewritten using Promises, r=qdot

This commit is contained in:
Andrea Marchesini 2017-10-17 13:21:39 +02:00
Родитель 87100dfe4e
Коммит de661f1d28
3 изменённых файлов: 503 добавлений и 414 удалений

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@ -0,0 +1,495 @@
function runTests(asciiFile, binaryFile, nonExistingFile, utf8TextFile,
utf16TextFile, emptyFile, dataUrlFile0, dataUrlFile1,
dataUrlFile2, testTextData) {
return test_basic()
.then(() => {
return test_readAsText(asciiFile, testASCIIData);
})
.then(() => {
return test_readAsTextWithEncoding(asciiFile, testASCIIData,
testASCIIData.length, "");
})
.then(() => {
return test_readAsTextWithEncoding(asciiFile, testASCIIData,
testASCIIData.length, "iso8859-1");
})
.then(() => {
return test_readAsTextWithEncoding(utf8TextFile, testTextData,
convertToUTF8(testTextData).length,
"utf8");
})
.then(() => {
return test_readAsTextWithEncoding(utf16TextFile, testTextData,
convertToUTF16(testTextData).length,
"utf-16");
})
.then(() => {
return test_readAsBinaryString(binaryFile, testBinaryData);
})
.then(() => {
return test_readAsArrayBuffer(binaryFile, testBinaryData);
})
.then(() => {
return test_onlyResult()
})
.then(() => {
return test_readAsText(emptyFile, "");
})
.then(() => {
return test_readAsTextWithEncoding(emptyFile, "", 0, "");
})
.then(() => {
return test_readAsTextWithEncoding(emptyFile, "", 0, "utf8");
})
.then(() => {
return test_readAsTextWithEncoding(emptyFile, "", 0, "utf-16");
})
.then(() => {
return test_readAsBinaryString(emptyFile, "");
})
.then(() => {
return test_readAsArrayBuffer(emptyFile, "");
})
.then(() => {
return test_readAsDataURL(emptyFile, convertToDataURL(""), 0);
})
.then(() => {
return test_readAsTextTwice(asciiFile, testASCIIData);
})
.then(() => {
return test_readAsBinaryStringTwice(binaryFile, testBinaryData);
})
.then(() => {
return test_readAsDataURLTwice(binaryFile, convertToDataURL(testBinaryData),
testBinaryData.length);
})
.then(() => {
return test_readAsArrayBufferTwice(binaryFile, testBinaryData);
})
.then(() => {
return test_readAsArrayBufferTwice2(binaryFile, testBinaryData);
})
.then(() => {
return test_readAsDataURL_customLength(dataUrlFile0, convertToDataURL(dataurldata0),
dataurldata0.length, 0);
})
.then(() => {
return test_readAsDataURL_customLength(dataUrlFile1, convertToDataURL(dataurldata1),
dataurldata1.length, 1);
})
.then(() => {
return test_readAsDataURL_customLength(dataUrlFile2, convertToDataURL(dataurldata2),
dataurldata2.length, 2);
})
.then(() => {
return test_abort(asciiFile);
})
.then(() => {
return test_abort_readAsX(asciiFile, testASCIIData);
})
.then(() => {
return test_nonExisting(nonExistingFile);
});
}
function convertToUTF16(s) {
let res = "";
for (let i = 0; i < s.length; ++i) {
c = s.charCodeAt(i);
res += String.fromCharCode(c & 255, c >>> 8);
}
return res;
}
function convertToUTF8(s) {
return unescape(encodeURIComponent(s));
}
function convertToDataURL(s) {
return "data:application/octet-stream;base64," + btoa(s);
}
function loadEventHandler_string(event, resolve, reader, data, dataLength, testName) {
is(event.target, reader, "Correct target.");
is(event.target.readyState, FileReader.DONE, "readyState in test " + testName);
is(event.target.error, null, "no error in test " + testName);
is(event.target.result, data, "result in test " + testName);
is(event.lengthComputable, true, "lengthComputable in test " + testName);
is(event.loaded, dataLength, "loaded in test " + testName);
is(event.total, dataLength, "total in test " + testName);
resolve();
}
function loadEventHandler_arrayBuffer(event, resolve, reader, data, testName) {
is(event.target.readyState, FileReader.DONE, "readyState in test " + testName);
is(event.target.error, null, "no error in test " + testName);
is(event.lengthComputable, true, "lengthComputable in test " + testName);
is(event.loaded, data.length, "loaded in test " + testName);
is(event.total, data.length, "total in test " + testName);
is(event.target.result.byteLength, data.length, "array buffer size in test " + testName);
let u8v = new Uint8Array(event.target.result);
is(String.fromCharCode.apply(String, u8v), data,
"array buffer contents in test " + testName);
u8v = null;
SpecialPowers.gc();
is(event.target.result.byteLength, data.length,
"array buffer size after gc in test " + testName);
u8v = new Uint8Array(event.target.result);
is(String.fromCharCode.apply(String, u8v), data,
"array buffer contents after gc in test " + testName);
resolve();
}
function test_basic() {
return new Promise(resolve => {
is(FileReader.EMPTY, 0, "correct EMPTY value");
is(FileReader.LOADING, 1, "correct LOADING value");
is(FileReader.DONE, 2, "correct DONE value");
resolve();
});
}
function test_readAsText(blob, text) {
return new Promise(resolve => {
let onloadHasRun = false;
let onloadStartHasRun = false;
let r = new FileReader();
is(r.readyState, FileReader.EMPTY, "correct initial text readyState");
r.onload = event => {
loadEventHandler_string(event, resolve, r, text, text.length, "readAsText");
}
r.addEventListener("load", () => { onloadHasRun = true });
r.addEventListener("loadstart", () => { onloadStartHasRun = true });
r.readAsText(blob);
is(r.readyState, FileReader.LOADING, "correct loading text readyState");
is(onloadHasRun, false, "text loading must be async");
is(onloadStartHasRun, true, "text loadstart should fire sync");
});
}
function test_readAsBinaryString(blob, text) {
return new Promise(resolve => {
let onloadHasRun = false;
let onloadStartHasRun = false;
let r = new FileReader();
is(r.readyState, FileReader.EMPTY, "correct initial binary readyState");
r.addEventListener("load", function() { onloadHasRun = true });
r.addEventListener("loadstart", function() { onloadStartHasRun = true });
r.readAsBinaryString(blob);
r.onload = event => {
loadEventHandler_string(event, resolve, r, text, text.length, "readAsBinaryString");
}
is(r.readyState, FileReader.LOADING, "correct loading binary readyState");
is(onloadHasRun, false, "binary loading must be async");
is(onloadStartHasRun, true, "binary loadstart should fire sync");
});
}
function test_readAsArrayBuffer(blob, text) {
return new Promise(resolve => {
let onloadHasRun = false;
let onloadStartHasRun = false;
r = new FileReader();
is(r.readyState, FileReader.EMPTY, "correct initial arrayBuffer readyState");
r.addEventListener("load", function() { onloadHasRun = true });
r.addEventListener("loadstart", function() { onloadStartHasRun = true });
r.readAsArrayBuffer(blob);
r.onload = event => {
loadEventHandler_arrayBuffer(event, resolve, r, text, "readAsArrayBuffer");
}
is(r.readyState, FileReader.LOADING, "correct loading arrayBuffer readyState");
is(onloadHasRun, false, "arrayBuffer loading must be async");
is(onloadStartHasRun, true, "arrayBuffer loadstart should fire sync");
});
}
// Test a variety of encodings, and make sure they work properly
function test_readAsTextWithEncoding(blob, text, length, charset) {
return new Promise(resolve => {
let r = new FileReader();
r.onload = event => {
loadEventHandler_string(event, resolve, r, text, length, "readAsText-" + charset);
}
r.readAsText(blob, charset);
});
}
// Test get result without reading
function test_onlyResult() {
return new Promise(resolve => {
let r = new FileReader();
is(r.readyState, FileReader.EMPTY, "readyState in test reader get result without reading");
is(r.error, null, "no error in test reader get result without reading");
is(r.result, null, "result in test reader get result without reading");
resolve();
});
}
function test_readAsDataURL(blob, text, length) {
return new Promise(resolve => {
let r = new FileReader();
r.onload = event => {
loadEventHandler_string(event, resolve, r, text, length, "readAsDataURL");
}
r.readAsDataURL(blob);
});
}
// Test reusing a FileReader to read multiple times
function test_readAsTextTwice(blob, text) {
return new Promise(resolve => {
let r = new FileReader();
r.onload = event => {
loadEventHandler_string(event, () => {}, r, text, text.length, "readAsText-reused-once");
}
let anotherListener = event => {
let r = event.target;
r.removeEventListener("load", anotherListener);
r.onload = event => {
loadEventHandler_string(event, resolve, r, text, text.length, "readAsText-reused-twice");
}
r.readAsText(blob);
};
r.addEventListener("load", anotherListener);
r.readAsText(blob);
});
}
// Test reusing a FileReader to read multiple times
function test_readAsBinaryStringTwice(blob, text) {
return new Promise(resolve => {
let r = new FileReader();
r.onload = event => {
loadEventHandler_string(event, () => {}, r, text, text.length, "readAsBinaryString-reused-once");
}
let anotherListener = event => {
let r = event.target;
r.removeEventListener("load", anotherListener);
r.onload = event => {
loadEventHandler_string(event, resolve, r, text, text.length, "readAsBinaryString-reused-twice");
}
r.readAsBinaryString(blob);
};
r.addEventListener("load", anotherListener);
r.readAsBinaryString(blob);
});
}
function test_readAsDataURLTwice(blob, text, length) {
return new Promise(resolve => {
let r = new FileReader();
r.onload = event => {
loadEventHandler_string(event, () => {}, r, text, length, "readAsDataURL-reused-once");
}
let anotherListener = event => {
let r = event.target;
r.removeEventListener("load", anotherListener);
r.onload = event => {
loadEventHandler_string(event, resolve, r, text, length, "readAsDataURL-reused-twice");
}
r.readAsDataURL(blob);
};
r.addEventListener("load", anotherListener);
r.readAsDataURL(blob);
});
}
function test_readAsArrayBufferTwice(blob, text) {
return new Promise(resolve => {
let r = new FileReader();
r.onload = event => {
loadEventHandler_arrayBuffer(event, () => {}, r, text, "readAsArrayBuffer-reused-once");
}
let anotherListener = event => {
let r = event.target;
r.removeEventListener("load", anotherListener);
r.onload = event => {
loadEventHandler_arrayBuffer(event, resolve, r, text, "readAsArrayBuffer-reused-twice");
}
r.readAsArrayBuffer(blob);
};
r.addEventListener("load", anotherListener);
r.readAsArrayBuffer(blob);
});
}
// Test first reading as ArrayBuffer then read as something else (BinaryString)
// and doesn't crash
function test_readAsArrayBufferTwice2(blob, text) {
return new Promise(resolve => {
let r = new FileReader();
r.onload = event => {
loadEventHandler_arrayBuffer(event, () => {}, r, text, "readAsArrayBuffer-reused-once2");
}
let anotherListener = event => {
let r = event.target;
r.removeEventListener("load", anotherListener);
r.onload = event => {
loadEventHandler_string(event, resolve, r, text, text.length, "readAsArrayBuffer-reused-twice2");
}
r.readAsBinaryString(blob);
};
r.addEventListener("load", anotherListener);
r.readAsArrayBuffer(blob);
});
}
function test_readAsDataURL_customLength(blob, text, length, numb) {
return new Promise(resolve => {
is(length % 3, numb, "Want to test data with length %3 == " + numb);
let r = new FileReader();
r.onload = event => {
loadEventHandler_string(event, resolve, r, text, length, "dataurl reading, %3 = " + numb);
}
r.readAsDataURL(blob);
});
}
// Test abort()
function test_abort(blob) {
return new Promise(resolve => {
let abortHasRun = false;
let loadEndHasRun = false;
let r = new FileReader();
r.onabort = function (event) {
is(abortHasRun, false, "abort should only fire once");
is(loadEndHasRun, false, "loadend shouldn't have fired yet");
abortHasRun = true;
is(event.target.readyState, FileReader.DONE, "should be DONE while firing onabort");
is(event.target.error.name, "AbortError", "error set to AbortError for aborted reads");
is(event.target.result, null, "file data should be null on aborted reads");
}
r.onloadend = function (event) {
is(abortHasRun, true, "abort should fire before loadend");
is(loadEndHasRun, false, "loadend should only fire once");
loadEndHasRun = true;
is(event.target.readyState, FileReader.DONE, "should be DONE while firing onabort");
is(event.target.error.name, "AbortError", "error set to AbortError for aborted reads");
is(event.target.result, null, "file data should be null on aborted reads");
}
r.onload = function() { ok(false, "load should not fire for aborted reads") };
r.onerror = function() { ok(false, "error should not fire for aborted reads") };
r.onprogress = function() { ok(false, "progress should not fire for aborted reads") };
let abortThrew = false;
try {
r.abort();
} catch(e) {
abortThrew = true;
}
is(abortThrew, false, "abort() doesn't throw");
is(abortHasRun, false, "abort() is a no-op unless loading");
r.readAsText(blob);
r.abort();
is(abortHasRun, true, "abort should fire sync");
is(loadEndHasRun, true, "loadend should fire sync");
resolve();
});
}
// Test calling readAsX to cause abort()
function test_abort_readAsX(blob, text) {
return new Promise(resolve => {
let reuseAbortHasRun = false;
letr = new FileReader();
r.onabort = function (event) {
is(reuseAbortHasRun, false, "abort should only fire once");
reuseAbortHasRun = true;
is(event.target.readyState, FileReader.DONE, "should be DONE while firing onabort");
is(event.target.error.name, "AbortError", "error set to AbortError for aborted reads");
is(event.target.result, null, "file data should be null on aborted reads");
}
r.onload = function() { ok(false, "load should fire for nested reads"); };
let abortThrew = false;
try {
r.abort();
} catch(e) {
abortThrew = true;
}
is(abortThrew, false, "abort() should not throw");
is(reuseAbortHasRun, false, "abort() is a no-op unless loading");
r.readAsText(blob);
let readThrew = false;
try {
r.readAsText(blob);
} catch(e) {
readThrew = true;
}
is(readThrew, true, "readAsText() must throw if loading");
is(reuseAbortHasRun, false, "abort should not fire");
r.onload = event => {
loadEventHandler_string(event, resolve, r, text, text.length, "reuse-as-abort reading");
}
});
}
// Test reading from nonexistent files
function test_nonExisting(blob) {
return new Promise(resolve => {
let r = new FileReader();
r.onerror = function (event) {
is(event.target.readyState, FileReader.DONE, "should be DONE while firing onerror");
is(event.target.error.name, "NotFoundError", "error set to NotFoundError for nonexistent files");
is(event.target.result, null, "file data should be null on aborted reads");
resolve();
};
r.onload = function (event) {
is(false, "nonexistent file shouldn't load! (FIXME: bug 1122788)");
};
let didThrow = false;
try {
r.readAsDataURL(blob);
} catch(ex) {
didThrow = true;
}
// Once this test passes, we should test that onerror gets called and
// that the FileReader object is in the right state during that call.
is(didThrow, false, "shouldn't throw when opening nonexistent file, should fire error instead");
});
}

Просмотреть файл

@ -22,6 +22,7 @@ support-files = file_ipc_messagemanager_blob.html
[test_nonascii_blob_url.html]
[test_file_negative_date.html]
[test_fileapi.html]
support-files = common_fileReader.js
[test_fileapi_slice_realFile_1.html]
skip-if = (toolkit == 'android') # Android: Bug 775227
[test_fileapi_slice_realFile_2.html]

Просмотреть файл

@ -1,42 +1,18 @@
<!DOCTYPE HTML>
<html>
<head>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=414796
-->
<title>Test for Bug 414796</title>
<title>Test for FileReader API</title>
<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
<script type="text/javascript" src="common_fileReader.js"></script>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=414796">Mozilla Bug 414796</a>
<p id="display">
</p>
<div id="content" style="display: none">
</div>
<pre id="test">
<script class="testbody" type="text/javascript">
// File constructors should not work from non-chrome code
try {
var file = File("/etc/passwd");
ok(false, "Did not throw on unprivileged attempt to construct a File");
} catch (e) {
ok(true, "Threw on an unprivileged attempt to construct a File");
}
const minFileSize = 20000;
var testRanCounter = 0;
var expectedTestCount = 0;
var testSetupFinished = false;
SimpleTest.waitForExplicitFinish();
is(FileReader.EMPTY, 0, "correct EMPTY value");
is(FileReader.LOADING, 1, "correct LOADING value");
is(FileReader.DONE, 2, "correct DONE value");
// Create strings containing data we'll test with. We'll want long
// strings to ensure they span multiple buffers while loading
var testTextData = "asd b\tlah\u1234w\u00a0r";
@ -94,394 +70,11 @@ function onFilesOpened(message) {
dataUrlFile2,
] = message;
// Test that plain reading works and fires events as expected, both
// for text and binary reading
var onloadHasRunText = false;
var onloadStartHasRunText = false;
r = new FileReader();
is(r.readyState, FileReader.EMPTY, "correct initial text readyState");
r.onload = getLoadHandler(testASCIIData, testASCIIData.length, "plain reading");
r.addEventListener("load", function() { onloadHasRunText = true });
r.addEventListener("loadstart", function() { onloadStartHasRunText = true });
r.readAsText(asciiFile);
is(r.readyState, FileReader.LOADING, "correct loading text readyState");
is(onloadHasRunText, false, "text loading must be async");
is(onloadStartHasRunText, true, "text loadstart should fire sync");
expectedTestCount++;
var onloadHasRunBinary = false;
var onloadStartHasRunBinary = false;
r = new FileReader();
is(r.readyState, FileReader.EMPTY, "correct initial binary readyState");
r.addEventListener("load", function() { onloadHasRunBinary = true });
r.addEventListener("loadstart", function() { onloadStartHasRunBinary = true });
r.readAsBinaryString(binaryFile);
r.onload = getLoadHandler(testBinaryData, testBinaryData.length, "binary reading");
is(r.readyState, FileReader.LOADING, "correct loading binary readyState");
is(onloadHasRunBinary, false, "binary loading must be async");
is(onloadStartHasRunBinary, true, "binary loadstart should fire sync");
expectedTestCount++;
var onloadHasRunArrayBuffer = false;
var onloadStartHasRunArrayBuffer = false;
r = new FileReader();
is(r.readyState, FileReader.EMPTY, "correct initial arrayBuffer readyState");
r.addEventListener("load", function() { onloadHasRunArrayBuffer = true });
r.addEventListener("loadstart", function() { onloadStartHasRunArrayBuffer = true });
r.readAsArrayBuffer(binaryFile);
r.onload = getLoadHandlerForArrayBuffer(testBinaryData, testBinaryData.length, "array buffer reading");
is(r.readyState, FileReader.LOADING, "correct loading arrayBuffer readyState");
is(onloadHasRunArrayBuffer, false, "arrayBuffer loading must be async");
is(onloadStartHasRunArrayBuffer, true, "arrayBuffer loadstart should fire sync");
expectedTestCount++;
// Test a variety of encodings, and make sure they work properly
r = new FileReader();
r.onload = getLoadHandler(testASCIIData, testASCIIData.length, "no encoding reading");
r.readAsText(asciiFile, "");
expectedTestCount++;
r = new FileReader();
r.onload = getLoadHandler(testASCIIData, testASCIIData.length, "iso8859 reading");
r.readAsText(asciiFile, "iso-8859-1");
expectedTestCount++;
r = new FileReader();
r.onload = getLoadHandler(testTextData,
convertToUTF8(testTextData).length,
"utf8 reading");
r.readAsText(utf8TextFile, "utf8");
expectedTestCount++;
r = new FileReader();
r.readAsText(utf16TextFile, "utf-16");
r.onload = getLoadHandler(testTextData,
convertToUTF16(testTextData).length,
"utf16 reading");
expectedTestCount++;
// Test get result without reading
r = new FileReader();
is(r.readyState, FileReader.EMPTY,
"readyState in test reader get result without reading");
is(r.error, null,
"no error in test reader get result without reading");
is(r.result, null,
"result in test reader get result without reading");
// Test loading an empty file works (and doesn't crash!)
r = new FileReader();
r.onload = getLoadHandler("", 0, "empty no encoding reading");
r.readAsText(emptyFile, "");
expectedTestCount++;
r = new FileReader();
r.onload = getLoadHandler("", 0, "empty utf8 reading");
r.readAsText(emptyFile, "utf8");
expectedTestCount++;
r = new FileReader();
r.onload = getLoadHandler("", 0, "empty utf16 reading");
r.readAsText(emptyFile, "utf-16");
expectedTestCount++;
r = new FileReader();
r.onload = getLoadHandler("", 0, "empty binary string reading");
r.readAsBinaryString(emptyFile);
expectedTestCount++;
r = new FileReader();
r.onload = getLoadHandlerForArrayBuffer("", 0, "empty array buffer reading");
r.readAsArrayBuffer(emptyFile);
expectedTestCount++;
r = new FileReader();
r.onload = getLoadHandler(convertToDataURL(""), 0, "empt binary string reading");
r.readAsDataURL(emptyFile);
expectedTestCount++;
// Test reusing a FileReader to read multiple times
r = new FileReader();
r.onload = getLoadHandler(testASCIIData,
testASCIIData.length,
"to-be-reused reading text")
var makeAnotherReadListener = function(event) {
r = event.target;
r.removeEventListener("load", makeAnotherReadListener);
r.onload = getLoadHandler(testASCIIData,
testASCIIData.length,
"reused reading text");
r.readAsText(asciiFile);
};
r.addEventListener("load", makeAnotherReadListener);
r.readAsText(asciiFile);
expectedTestCount += 2;
r = new FileReader();
r.onload = getLoadHandler(testBinaryData,
testBinaryData.length,
"to-be-reused reading binary")
var makeAnotherReadListener2 = function(event) {
r = event.target;
r.removeEventListener("load", makeAnotherReadListener2);
r.onload = getLoadHandler(testBinaryData,
testBinaryData.length,
"reused reading binary");
r.readAsBinaryString(binaryFile);
};
r.addEventListener("load", makeAnotherReadListener2);
r.readAsBinaryString(binaryFile);
expectedTestCount += 2;
r = new FileReader();
r.onload = getLoadHandler(convertToDataURL(testBinaryData),
testBinaryData.length,
"to-be-reused reading data url")
var makeAnotherReadListener3 = function(event) {
r = event.target;
r.removeEventListener("load", makeAnotherReadListener3);
r.onload = getLoadHandler(convertToDataURL(testBinaryData),
testBinaryData.length,
"reused reading data url");
r.readAsDataURL(binaryFile);
};
r.addEventListener("load", makeAnotherReadListener3);
r.readAsDataURL(binaryFile);
expectedTestCount += 2;
r = new FileReader();
r.onload = getLoadHandlerForArrayBuffer(testBinaryData,
testBinaryData.length,
"to-be-reused reading arrayBuffer")
var makeAnotherReadListener4 = function(event) {
r = event.target;
r.removeEventListener("load", makeAnotherReadListener4);
r.onload = getLoadHandlerForArrayBuffer(testBinaryData,
testBinaryData.length,
"reused reading arrayBuffer");
r.readAsArrayBuffer(binaryFile);
};
r.addEventListener("load", makeAnotherReadListener4);
r.readAsArrayBuffer(binaryFile);
expectedTestCount += 2;
// Test first reading as ArrayBuffer then read as something else
// (BinaryString) and doesn't crash
r = new FileReader();
r.onload = getLoadHandlerForArrayBuffer(testBinaryData,
testBinaryData.length,
"to-be-reused reading arrayBuffer")
var makeAnotherReadListener5 = function(event) {
r = event.target;
r.removeEventListener("load", makeAnotherReadListener5);
r.onload = getLoadHandler(testBinaryData,
testBinaryData.length,
"reused reading binary string");
r.readAsBinaryString(binaryFile);
};
r.addEventListener("load", makeAnotherReadListener5);
r.readAsArrayBuffer(binaryFile);
expectedTestCount += 2;
//Test data-URI encoding on differing file sizes
is(dataurldata0.length % 3, 0, "Want to test data with length % 3 == 0");
r = new FileReader();
r.onload = getLoadHandler(convertToDataURL(dataurldata0),
dataurldata0.length,
"dataurl reading, %3 = 0");
r.readAsDataURL(dataUrlFile0);
expectedTestCount++;
is(dataurldata1.length % 3, 1, "Want to test data with length % 3 == 1");
r = new FileReader();
r.onload = getLoadHandler(convertToDataURL(dataurldata1),
dataurldata1.length,
"dataurl reading, %3 = 1");
r.readAsDataURL(dataUrlFile1);
expectedTestCount++;
is(dataurldata2.length % 3, 2, "Want to test data with length % 3 == 2");
r = new FileReader();
r.onload = getLoadHandler(convertToDataURL(dataurldata2),
dataurldata2.length,
"dataurl reading, %3 = 2");
r.readAsDataURL(dataUrlFile2),
expectedTestCount++;
// Test abort()
var abortHasRun = false;
var loadEndHasRun = false;
r = new FileReader();
r.onabort = function (event) {
is(abortHasRun, false, "abort should only fire once");
is(loadEndHasRun, false, "loadend shouldn't have fired yet");
abortHasRun = true;
is(event.target.readyState, FileReader.DONE, "should be DONE while firing onabort");
is(event.target.error.name, "AbortError", "error set to AbortError for aborted reads");
is(event.target.result, null, "file data should be null on aborted reads");
}
r.onloadend = function (event) {
is(abortHasRun, true, "abort should fire before loadend");
is(loadEndHasRun, false, "loadend should only fire once");
loadEndHasRun = true;
is(event.target.readyState, FileReader.DONE, "should be DONE while firing onabort");
is(event.target.error.name, "AbortError", "error set to AbortError for aborted reads");
is(event.target.result, null, "file data should be null on aborted reads");
}
r.onload = function() { ok(false, "load should not fire for aborted reads") };
r.onerror = function() { ok(false, "error should not fire for aborted reads") };
r.onprogress = function() { ok(false, "progress should not fire for aborted reads") };
var abortThrew = false;
try {
r.abort();
} catch(e) {
abortThrew = true;
}
is(abortThrew, false, "abort() doesn't throw");
is(abortHasRun, false, "abort() is a no-op unless loading");
r.readAsText(asciiFile);
r.abort();
is(abortHasRun, true, "abort should fire sync");
is(loadEndHasRun, true, "loadend should fire sync");
// Test calling readAsX to cause abort()
var reuseAbortHasRun = false;
r = new FileReader();
r.onabort = function (event) {
is(reuseAbortHasRun, false, "abort should only fire once");
reuseAbortHasRun = true;
is(event.target.readyState, FileReader.DONE, "should be DONE while firing onabort");
is(event.target.error.name, "AbortError", "error set to AbortError for aborted reads");
is(event.target.result, null, "file data should be null on aborted reads");
}
r.onload = function() { ok(false, "load should fire for nested reads"); };
var abortThrew = false;
try {
r.abort();
} catch(e) {
abortThrew = true;
}
is(abortThrew, false, "abort() should not throw");
is(reuseAbortHasRun, false, "abort() is a no-op unless loading");
r.readAsText(asciiFile);
var readThrew = false;
try {
r.readAsText(asciiFile);
} catch(e) {
readThrew = true;
}
is(readThrew, true, "readAsText() must throw if loading");
is(reuseAbortHasRun, false, "abort should not fire");
r.onload = getLoadHandler(testASCIIData, testASCIIData.length, "reuse-as-abort reading");
expectedTestCount++;
// Test reading from nonexistent files
r = new FileReader();
var didThrow = false;
r.onerror = function (event) {
is(event.target.readyState, FileReader.DONE, "should be DONE while firing onerror");
is(event.target.error.name, "NotFoundError", "error set to NotFoundError for nonexistent files");
is(event.target.result, null, "file data should be null on aborted reads");
testHasRun();
};
r.onload = function (event) {
is(false, "nonexistent file shouldn't load! (FIXME: bug 1122788)");
testHasRun();
};
try {
r.readAsDataURL(nonExistingFile);
expectedTestCount++;
} catch(ex) {
didThrow = true;
}
// Once this test passes, we should test that onerror gets called and
// that the FileReader object is in the right state during that call.
is(didThrow, false, "shouldn't throw when opening nonexistent file, should fire error instead");
function getLoadHandler(expectedResult, expectedLength, testName) {
return function (event) {
is(event.target.readyState, FileReader.DONE,
"readyState in test " + testName);
is(event.target.error, null,
"no error in test " + testName);
is(event.target.result, expectedResult,
"result in test " + testName);
is(event.lengthComputable, true,
"lengthComputable in test " + testName);
is(event.loaded, expectedLength,
"loaded in test " + testName);
is(event.total, expectedLength,
"total in test " + testName);
testHasRun();
}
}
function getLoadHandlerForArrayBuffer(expectedResult, expectedLength, testName) {
return function (event) {
is(event.target.readyState, FileReader.DONE,
"readyState in test " + testName);
is(event.target.error, null,
"no error in test " + testName);
is(event.lengthComputable, true,
"lengthComputable in test " + testName);
is(event.loaded, expectedLength,
"loaded in test " + testName);
is(event.total, expectedLength,
"total in test " + testName);
is(event.target.result.byteLength, expectedLength,
"array buffer size in test " + testName);
var u8v = new Uint8Array(event.target.result);
is(String.fromCharCode.apply(String, u8v), expectedResult,
"array buffer contents in test " + testName);
u8v = null;
SpecialPowers.gc();
is(event.target.result.byteLength, expectedLength,
"array buffer size after gc in test " + testName);
u8v = new Uint8Array(event.target.result);
is(String.fromCharCode.apply(String, u8v), expectedResult,
"array buffer contents after gc in test " + testName);
testHasRun();
}
}
function testHasRun() {
//alert(testRanCounter);
++testRanCounter;
if (testRanCounter == expectedTestCount) {
is(testSetupFinished, true, "test setup should have finished; check for exceptions");
is(onloadHasRunText, true, "onload text should have fired by now");
is(onloadHasRunBinary, true, "onload binary should have fired by now");
opener.destroy();
SimpleTest.finish();
}
}
testSetupFinished = true;
}
function convertToUTF16(s) {
res = "";
for (var i = 0; i < s.length; ++i) {
c = s.charCodeAt(i);
res += String.fromCharCode(c & 255, c >>> 8);
}
return res;
}
function convertToUTF8(s) {
return unescape(encodeURIComponent(s));
}
function convertToDataURL(s) {
return "data:application/octet-stream;base64," + btoa(s);
runTests(asciiFile, binaryFile, nonExistingFile, utf8TextFile, utf16TextFile,
emptyFile, dataUrlFile0, dataUrlFile1, dataUrlFile2, testTextData)
.then(SimpleTest.finish);
}
</script>
</pre>
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