forked from mirrors/gecko-dev
54 lines
1.9 KiB
HTML
54 lines
1.9 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<meta charset="utf-8">
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<title>Test for FileReaderSync when the worker is closing</title>
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<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
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</head>
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<body>
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<script type="application/javascript">
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// In order to exercise FileReaderSync::SyncRead's syncLoop-using AsyncWait()
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// path, we need to provide a stream that will both 1) not have all the data
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// immediately available (eliminating memory-backed Blobs) and 2) return
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// NS_BASE_STREAM_WOULD_BLOCK. Under e10s, any Blob/File sourced from the
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// parent process (as loadChromeScript performs) will be backed by an
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// IPCBlobInputStream and will behave this way on first use (when it is in the
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// eInit state). For ease of testing, we reuse script_createFile.js which
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// involves a file on disk, but a memory-backed Blob from the parent process
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// would be equally fine. Under non-e10s, this File will not do the right
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// thing because a synchronous nsFileInputStream will be made directly
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// available and the AsyncWait path won't be taken, but the test will still
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// pass.
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var url = SimpleTest.getTestFileURL("script_createFile.js");
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var script = SpecialPowers.loadChromeScript(url);
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function onOpened(message) {
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function workerCode() {
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onmessage = function(e) {
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self.close();
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var fr = new FileReaderSync();
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self.postMessage(fr.readAsText(e.data));
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}
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}
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var b = new Blob([workerCode+'workerCode();']);
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var w = new Worker(URL.createObjectURL(b));
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w.onmessage = function(e) {
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is(e.data, "Hello world!", "The blob content is OK!");
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SimpleTest.finish();
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}
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w.postMessage(message.data);
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}
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script.addMessageListener("nonEmptyFile.opened", onOpened);
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script.sendAsyncMessage("nonEmptyFile.open");
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SimpleTest.waitForExplicitFinish();
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</script>
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</body>
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</html>
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