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75 lines
1.9 KiB
JavaScript
75 lines
1.9 KiB
JavaScript
/**
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* Delegates "is" evaluation back to main thread.
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*/
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function is(actual, expected, message) {
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var rtnObj = new Object();
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rtnObj.actual = actual;
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rtnObj.expected = expected;
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rtnObj.message = message;
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postMessage(rtnObj);
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}
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/**
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* Tries to write to property.
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*/
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function writeProperty(file, property) {
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var oldValue = file[property];
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file[property] = -1;
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is(file[property], oldValue, "Property " + property + " should be readonly.");
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}
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/**
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* Passes junk arguments to FileReaderSync methods and expects an exception to
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* be thrown.
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*/
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function fileReaderJunkArgument(blob) {
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var fileReader = new FileReaderSync();
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try {
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fileReader.readAsBinaryString(blob);
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is(false, true, "Should have thrown an exception calling readAsBinaryString.");
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} catch(ex) {
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is(true, true, "Should have thrown an exception.");
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}
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try {
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fileReader.readAsDataURL(blob);
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is(false, true, "Should have thrown an exception calling readAsDataURL.");
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} catch(ex) {
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is(true, true, "Should have thrown an exception.");
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}
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try {
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fileReader.readAsArrayBuffer(blob);
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is(false, true, "Should have thrown an exception calling readAsArrayBuffer.");
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} catch(ex) {
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is(true, true, "Should have thrown an exception.");
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}
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try {
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fileReader.readAsText(blob);
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is(false, true, "Should have thrown an exception calling readAsText.");
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} catch(ex) {
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is(true, true, "Should have thrown an exception.");
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}
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}
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onmessage = function(event) {
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var file = event.data;
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// Test read only properties.
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writeProperty(file, "size");
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writeProperty(file, "type");
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writeProperty(file, "name");
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// Bad types.
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fileReaderJunkArgument(undefined);
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fileReaderJunkArgument(-1);
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fileReaderJunkArgument(1);
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fileReaderJunkArgument(new Object());
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fileReaderJunkArgument("hello");
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// Post undefined to indicate that testing has finished.
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postMessage(undefined);
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};
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