Adds unit tests for swipe flick.

chrome/test/data/chromeos/virtual_keyboard/typing_test.js

 /*
  * Copyright 2013 The Chromium Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 /**
  * Tester for lonpress typing accents.
  */
 function LongPressTypingTester(layout) {
@@ skipping 287 matching lines @@
       charValue: unicodeValue,
       keyCode: 0x41,
       modifiers: Modifier.NONE
     });
     key.down(mockEvent);
     key.out(mockEvent);
     mockTypeCharacter('s', 0x53, Modifier.NONE);
   };
   onKeyboardReady('testFingerOutType', runTest, testDoneCallback);
 }
+
+/**
+ * Tests that flicking upwards on a key with hintText types the hint text.
+ * @param {Function} testDoneCallback The callback function on completion.
+ */
+function testSwipeFlick(testDoneCallback) {
+  var mockEvent = function(x, y, target) {
+    return {
+      pointerId: 1,
+      isPrimary: true,
+      screenX: x,
+      screenY: y,
+      target: target
+    };
+  }
+  var runTest = function() {
+    var key = findKey('.');
+    var send = chrome.virtualKeyboardPrivate.sendKeyEvent;
+    // Test flick on the '.', expect '?' to appear.
+    send.addExpectation({
+      type: 'keydown',
+      charValue: '?'.charCodeAt(0),
+      keyCode: 0xBF,
+      modifiers: Modifier.SHIFT
+    });
+    send.addExpectation({
+      type: 'keyup',
+      charValue: '?'.charCodeAt(0),
+      keyCode: 0xBF,
+      modifiers: Modifier.SHIFT
+    });
+    var height = key.clientHeight;
+    $('keyboard').updateSwipeTracker(mockEvent(0, -height/2, key));

[kevers, 2013/12/02 21:04:36]

Can you use a pointer down and move in place of a direct call to swipe tracker?

[rsadam, 2013/12/03 15:56:33]

Done.

+    $('keyboard').up(mockEvent(0, -height, key));
+
+    // Test long flick. Should not have any output.
+    $('keyboard').updateSwipeTracker(mockEvent(0, -height/2, key));
+    $('keyboard').updateSwipeTracker(mockEvent(0, -2*height, key));
+    $('keyboard').up(mockEvent(0, -2*height, key));
+
+    // Test composed swipe and flick. Should not have any output.
+    var move = chrome.virtualKeyboardPrivate.moveCursor;
+    move.addExpectation(SwipeDirection.RIGHT,
+                        Modifier.CONTROL & Modifier.SHIFT);
+    var width = key.clientWidth;
+    $('keyboard').updateSwipeTracker(mockEvent(0, -height/2, key));
+    $('keyboard').updateSwipeTracker(mockEvent(width, -height/2, key));
+    $('keyboard').up(mockEvent(width, -height/2, key));
+  };
+  onKeyboardReady('testSwipeFlick', runTest, testDoneCallback);
+}