82 lines
3.1 KiB
JavaScript
82 lines
3.1 KiB
JavaScript
// META: title=FileAPI Test: filereader_result
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var blob, blob2;
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setup(function() {
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blob = new Blob(["This test the result attribute"]);
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blob2 = new Blob(["This is a second blob"]);
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});
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async_test(function() {
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var readText = new FileReader();
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assert_equals(readText.result, null);
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readText.onloadend = this.step_func(function(evt) {
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assert_equals(typeof readText.result, "string", "The result type is string");
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assert_equals(readText.result, "This test the result attribute", "The result is correct");
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this.done();
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});
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readText.readAsText(blob);
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}, "readAsText");
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async_test(function() {
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var readDataURL = new FileReader();
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assert_equals(readDataURL.result, null);
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readDataURL.onloadend = this.step_func(function(evt) {
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assert_equals(typeof readDataURL.result, "string", "The result type is string");
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assert_true(readDataURL.result.indexOf("VGhpcyB0ZXN0IHRoZSByZXN1bHQgYXR0cmlidXRl") != -1, "return the right base64 string");
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this.done();
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});
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readDataURL.readAsDataURL(blob);
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}, "readAsDataURL");
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async_test(function() {
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var readArrayBuffer = new FileReader();
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assert_equals(readArrayBuffer.result, null);
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readArrayBuffer.onloadend = this.step_func(function(evt) {
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assert_true(readArrayBuffer.result instanceof ArrayBuffer, "The result is instanceof ArrayBuffer");
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this.done();
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});
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readArrayBuffer.readAsArrayBuffer(blob);
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}, "readAsArrayBuffer");
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async_test(function() {
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var readBinaryString = new FileReader();
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assert_equals(readBinaryString.result, null);
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readBinaryString.onloadend = this.step_func(function(evt) {
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assert_equals(typeof readBinaryString.result, "string", "The result type is string");
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assert_equals(readBinaryString.result, "This test the result attribute", "The result is correct");
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this.done();
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});
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readBinaryString.readAsBinaryString(blob);
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}, "readAsBinaryString");
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for (let event of ['loadstart', 'progress']) {
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for (let method of ['readAsText', 'readAsDataURL', 'readAsArrayBuffer', 'readAsBinaryString']) {
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promise_test(async function(t) {
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var reader = new FileReader();
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assert_equals(reader.result, null, 'result is null before read');
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var eventWatcher = new EventWatcher(t, reader,
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[event, 'loadend']);
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reader[method](blob);
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assert_equals(reader.result, null, 'result is null after first read call');
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await eventWatcher.wait_for(event);
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assert_equals(reader.result, null, 'result is null during event');
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await eventWatcher.wait_for('loadend');
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assert_not_equals(reader.result, null);
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reader[method](blob);
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assert_equals(reader.result, null, 'result is null after second read call');
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await eventWatcher.wait_for(event);
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assert_equals(reader.result, null, 'result is null during second read event');
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}, 'result is null during "' + event + '" event for ' + method);
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}
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}
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