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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>FileAPI Test: filereader_result</title>
<link rel="author" title="Intel" href="http://www.intel.com">
<link rel="help" href="http://dev.w3.org/2006/webapi/FileAPI/#filedata-attr">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body>
<div id="log"></div>
<script>
var blob, blob2;
setup(function() {
blob = new Blob(["This test the result attribute"]);
blob2 = new Blob(["This is a second blob"]);
});
async_test(function() {
var readText = new FileReader();
assert_equals(readText.result, null);
readText.onloadend = this.step_func(function(evt) {
assert_equals(typeof readText.result, "string", "The result type is string");
assert_equals(readText.result, "This test the result attribute", "The result is correct");
this.done();
});
readText.readAsText(blob);
}, "readAsText");
async_test(function() {
var readDataURL = new FileReader();
assert_equals(readDataURL.result, null);
readDataURL.onloadend = this.step_func(function(evt) {
assert_equals(typeof readDataURL.result, "string", "The result type is string");
assert_true(readDataURL.result.indexOf("VGhpcyB0ZXN0IHRoZSByZXN1bHQgYXR0cmlidXRl") != -1, "return the right base64 string");
this.done();
});
readDataURL.readAsDataURL(blob);
}, "readAsDataURL");
async_test(function() {
var readArrayBuffer = new FileReader();
assert_equals(readArrayBuffer.result, null);
readArrayBuffer.onloadend = this.step_func(function(evt) {
assert_true(readArrayBuffer.result instanceof ArrayBuffer, "The result is instanceof ArrayBuffer");
this.done();
});
readArrayBuffer.readAsArrayBuffer(blob);
}, "readAsArrayBuffer");
async_test(function() {
var readBinaryString = new FileReader();
assert_equals(readBinaryString.result, null);
readBinaryString.onloadend = this.step_func(function(evt) {
assert_equals(typeof readBinaryString.result, "string", "The result type is string");
assert_equals(readBinaryString.result, "This test the result attribute", "The result is correct");
this.done();
});
readBinaryString.readAsBinaryString(blob);
}, "readAsBinaryString");
for (let event of ['loadstart', 'progress']) {
for (let method of ['readAsText', 'readAsDataURL', 'readAsArrayBuffer', 'readAsBinaryString']) {
promise_test(async function(t) {
var reader = new FileReader();
assert_equals(reader.result, null, 'result is null before read');
var eventWatcher = new EventWatcher(t, reader,
[event, 'loadend']);
reader[method](blob);
assert_equals(reader.result, null, 'result is null after first read call');
await eventWatcher.wait_for(event);
assert_equals(reader.result, null, 'result is null during event');
await eventWatcher.wait_for('loadend');
assert_not_equals(reader.result, null);
reader[method](blob);
assert_equals(reader.result, null, 'result is null after second read call');
await eventWatcher.wait_for(event);
assert_equals(reader.result, null, 'result is null during second read event');
}, 'result is null during "' + event + '" event for ' + method);
}
}
</script>
</body>
</html>
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