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+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=960946
+-->
+<head>
+  <title>Basic test for repeat sendKey events</title>
+  <script type="application/javascript;version=1.7" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="application/javascript;version=1.7" src="inputmethod_common.js"></script>
+  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=960946">Mozilla Bug 960946</a>
+<p id="display"></p>
+<pre id="test">
+<script class="testbody" type="application/javascript;version=1.7">
+
+// The input context.
+var gContext = null;
+var gCounter = 0;
+var gBackSpaceCounter = 0;
+var result = ["keydown", "keypress", "keydown","keypress",
+              "keydown", "keypress", "keyup"
+             ];
+
+inputmethod_setup(function() {
+  runTest();
+});
+
+var input;
+// The frame script running in file_test_backspace_event.html.
+function appFrameScript() {
+  let input = content.document.getElementById('test-input');
+  input.onkeydown = input.onkeypress = input.onkeyup = function(event) {
+    dump('key event was fired in file_test_backspace_event.html: ' + event.type +'\n');
+    sendAsyncMessage('test:KeyBoard:keyEvent', {'type':event.type});
+  };
+}
+
+function runTest() {
+  let im = navigator.mozInputMethod;
+
+  im.oninputcontextchange = function() {
+    ok(true, 'inputcontextchange event was fired.');
+    im.oninputcontextchange = null;
+
+    gContext = im.inputcontext;
+    if (!gContext) {
+      ok(false, 'Should have a non-null inputcontext.');
+      inputmethod_cleanup();
+      return;
+    }
+
+    test_sendKey();
+  };
+
+  // Set current page as an input method.
+  SpecialPowers.wrap(im).setActive(true);
+
+  // Create an app frame to recieve keyboard inputs.
+  let app = document.createElement('iframe');
+  app.src = 'file_test_app.html';
+  app.setAttribute('mozbrowser', true);
+  document.body.appendChild(app);
+  app.addEventListener('mozbrowserloadend', function() {
+    let mm = SpecialPowers.getBrowserFrameMessageManager(app);
+    mm.loadFrameScript('data:,(' + appFrameScript.toString() + ')();', false);
+    mm.addMessageListener("test:KeyBoard:keyEvent", function(event) {
+      ok(true, 'Keyboard input was received.');
+      is(SpecialPowers.wrap(event).json.type, result[gCounter], "expected event");
+      gCounter++;
+    });
+  });
+}
+
+function test_sendKey() {
+  // Move cursor position to 4.
+  gContext.setSelectionRange(4, 0).then(function() {
+    is(gContext.selectionStart, 4, 'selectionStart was set successfully.');
+    is(gContext.selectionEnd, 4, 'selectionEnd was set successfully.');
+    for(let i = 0; i < 2; i++) {
+      test_sendBackspace(true);
+    }
+    test_sendBackspace(false);
+  }, function(e) {
+    ok(false, 'setSelectionRange failed:' + e.name);
+    inputmethod_cleanup();
+  });
+}
+
+function test_sendBackspace(repeat) {
+  // Send backspace
+  gContext.sendKey(KeyEvent.DOM_VK_BACK_SPACE, 0, 0, repeat).then(function() {
+    ok(true, 'sendKey success');
+    gBackSpaceCounter++;
+    if (gBackSpaceCounter == 3) {
+      inputmethod_cleanup();
+    }
+  }, function(e) {
+    ok(false, 'sendKey failed:' + e.name);
+    inputmethod_cleanup();
+  });
+}
+</script>
+</pre>
+</body>
+</html>
+