1 files changed, 80 insertions, 0 deletions
diff --git a/dom/media/mediasource/test/test_LiveSeekable.html b/dom/media/mediasource/test/test_LiveSeekable.html
new file mode 100644
index 000000000..6abc42450
--- /dev/null
+++ b/dom/media/mediasource/test/test_LiveSeekable.html
@@ -0,0 +1,80 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>MSE: live seekable range</title>
+  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mediasource.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<pre id="test">
+<script class="testbody" type="text/javascript">
+
+SimpleTest.waitForExplicitFinish();
+
+runWithMSE(function (ms, v) {
+  ms.addEventListener("sourceopen", function () {
+    var sb = ms.addSourceBuffer("video/webm");
+    // Load data with a +2 offset so that we can distinguish buffered range start
+    // and seekable range start.
+    sb.timestampOffset = 2;
+    var promises = [];
+    promises.push(fetchAndLoad(sb, 'seek', [''], '.webm'));
+    promises.push(once(v, "loadedmetadata"));
+    Promise.all(promises)
+    .then(function() {
+      ms.duration = Infinity;
+      sb.abort();
+      is(sb.buffered.length, 1, "continuous buffered range");
+      is(sb.buffered.start(0), 2, "buffered range start at timestamp offset");
+      is(sb.buffered.end(0), 6.001, "buffered range end at original duration + timestamp offset");
+      is(v.seekable.length, 1, "continuous seekable range");
+      is(v.seekable.start(0), 0, "seekable range start at 0");
+      is(v.seekable.end(0), sb.buffered.end(0), "seekable range end at buffered end");
+
+      // LiveSeekableRange.start < buffered.start
+      ms.setLiveSeekableRange(1, 5);
+      is(v.seekable.length, 1, "continuous seekable range");
+      is(v.seekable.start(0), 1, "seekable range start at live range start");
+      is(v.seekable.end(0), sb.buffered.end(0), "seekable range end at buffered end");
+
+      ms.clearLiveSeekableRange();
+      ok(v.seekable.length, 1, "continuous seekable range");
+      is(v.seekable.start(0), 0, "seekable range start at 0");
+      is(v.seekable.end(0), sb.buffered.end(0), "seekable range end at buffered end");
+
+      // LiveSeekableRange.end > buffered.end
+      ms.setLiveSeekableRange(1, 8);
+      is(v.seekable.start(0), 1, "seekable range start at live range start");
+      is(v.seekable.end(0), 8, "seekable range end at live range end");
+
+      // LiveSeekableRange.start > buffered.start
+      // LiveSeekableRange.end < buffered.end
+      ms.setLiveSeekableRange(3, 5);
+      is(v.seekable.start(0), sb.buffered.start(0), "seekable range start at buffered start");
+      is(v.seekable.end(0), sb.buffered.end(0), "seekable range end at live range end");
+
+      // LiveSeekableRange.start > buffered.end
+      ms.setLiveSeekableRange(8, 10);
+      is(v.seekable.start(0), sb.buffered.start(0), "seekable range start at buffered start");
+      is(v.seekable.end(0), 10, "seekable range end at live range end");
+
+      // LiveSeekableRange.end < buffered.start
+      ms.setLiveSeekableRange(0, 2);
+      is(v.seekable.start(0), 0, "seekable range start at live range start");
+      is(v.seekable.end(0), sb.buffered.end(0), "seekable range end at buffered end");
+
+      try {
+        ms.setLiveSeekableRange(2, 0);
+        ok(false, "start > end");
+      } catch (e) { ok(true, "must thow if start > end"); }
+
+      SimpleTest.finish();
+    });
+  });
+});
+
+</script>
+</pre>
+</body>
+</html>