Merge pull request #1565 from w3c/pr-294

Progress events test for File API; r=Ms2ger+zqzhang+zcorpan
yi-gu · Jan 28, 2015 · 863ad54 · 863ad54
2 parents 99f131c + 2f5ef5a
commit 863ad54
Showing 1 changed file with 49 additions and 0 deletions.
diff --git a/FileAPI/progress.html b/FileAPI/progress.html
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+<!DOCTYPE html>
+<meta charset=utf-8>
+<title>Process Events for FileReader</title>
+<link rel=help href="http://www.w3.org/TR/FileAPI/#event-handler-attributes-section">
+<link rel=author title="Jinks Zhao" href="mailto:[email protected]">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+Please choose one file through this input below.<br>
+<input type="file" id="filer">
+<div id="log"></div>
+<script>
+var input, reader, progressEventCounter, progressEventTimeList,
+    lastProgressEventTime;
+setup(function() {
+    input = document.getElementById('filer');
+    reader = new FileReader();
+    progressEventCounter = 0;
+    progressEventTimeList = [];
+    lastProgressEventTime;
+}, { explicit_timeout: true });
+
+var t = async_test("FileReader progress events.")
+
+reader.onprogress = t.step_func(function () {
+    var newTime = new Date;
+    var timeout = newTime - lastProgressEventTime;
+
+    progressEventTimeList.push(timeout);
+    lastProgressEventTime = newTime;
+    progressEventCounter++;
+
+    assert_less_than_equal(timeout, 50, "The progress event should be fired every 50ms.");
+});
+
+reader.onload = t.step_func_done(function () {
+    assert_greater_than_equal(progressEventCounter, 1,
+                              "When read completely, the progress event must be fired at least once.")
+});
+
+input.onchange = t.step_func(function () {
+    var files = input.files;
+
+    assert_greater_than(files.length, 0);
+    var file = files[0];
+
+    lastProgressEventTime = new Date;
+    reader.readAsArrayBuffer(file);
+});
+</script>