More ChromeVox tests

chrome/browser/resources/chromeos/chromevox/common/key_sequence_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.
+
+// Include test fixture.
+GEN_INCLUDE(['../testing/chromevox_unittest_base.js']);
+
+/**
+ * Test fixture.
+ * @constructor
+ * @extends {ChromeVoxUnitTestBase}
+ */
+function CvoxKeySequenceUnitTest() {}
+
+CvoxKeySequenceUnitTest.prototype = {
+  __proto__: ChromeVoxUnitTestBase.prototype,
+
+  /** @override */
+  closureModuleDeps: [
+    'cvox.ChromeVox',
+    'cvox.KeySequence',
+  ],
+
+  /**
+   * Create mock event object.
+   * @param {number} keyCode The event key code (i.e. 13 for Enter).
+   * @param {{altGraphKey: boolean=,
+   *         altKey: boolean=,
+   *         ctrlKey: boolean=,
+   *         metaKey: boolean=,
+   *         searchKeyHeld: boolean=,
+   *         shiftKey: boolean=,
+   *         stickyMode: boolean=,
+   *         prefixKey: boolean=}} eventParams The parameters on the event.
+   *  altGraphKey: Whether or not the altGraph key was held down.
+   *  altKey: Whether or not the alt key was held down.
+   *  ctrlKey: Whether or not the ctrl key was held down.
+   *  metaKey: Whether or not the meta key was held down.
+   *  searchKeyHeld: Whether or not the search key was held down.
+   *  shiftKey: Whether or not the shift key was held down.
+   *  stickyMode: Whether or not sticky mode is enabled.
+   *  prefixKey: Whether or not the prefix key was entered.
+   * @return {Object} The mock event.
+   */
+  createMockEvent: function(keyCode, eventParams) {
+    var mockEvent = {};
+    mockEvent.keyCode = keyCode;
+
+    if (eventParams == null) {
+      return mockEvent;
+    }
+    if (eventParams.hasOwnProperty('altGraphKey')) {
+      mockEvent.altGraphKey = eventParams.altGraphKey;
+    }
+    if (eventParams.hasOwnProperty('altKey')) {
+      mockEvent.altKey = eventParams.altKey;
+    }
+    if (eventParams.hasOwnProperty('ctrlKey')) {
+      mockEvent.ctrlKey = eventParams.ctrlKey;
+    }
+    if (eventParams.hasOwnProperty('metaKey')) {
+      mockEvent.metaKey = eventParams.metaKey;
+    }
+    if (eventParams.hasOwnProperty('shiftKey')) {
+      mockEvent.shiftKey = eventParams.shiftKey;
+    }
+
+    if (eventParams.hasOwnProperty('searchKeyHeld')) {
+      mockEvent.searchKeyHeld = eventParams.searchKeyHeld;
+    }
+    if (eventParams.hasOwnProperty('stickyMode')) {
+      mockEvent.stickyMode = eventParams.stickyMode;
+    }
+    if (eventParams.hasOwnProperty('prefixKey')) {
+      mockEvent.keyPrefix = eventParams.prefixKey;
+    }
+
+    return mockEvent;
+  },
+
+  /** @override */
+  setUp: function() {
+    // Set up mock ChromeVox modifier
+    cvox.ChromeVox.modKeyStr = 'Alt';
+
+    // Use these mock events in the tests:
+
+    // Down arrow, no modifiers
+    this.downArrowEvent = this.createMockEvent(40);
+
+    // Down arrow key with alt held down. We specified 'Alt' as the
+    // mock ChromeVox modifier string, so this means that KeySequence
+    // should interpret this as the ChromeVox modifier being active.
+    this.altDownArrowEvent = this.createMockEvent(40, {altKey: true});
+
+    // Right arrow, no modifiers
+    this.rightArrowEvent = this.createMockEvent(39);
+
+    // Ctrl key, no modifiers
+    this.ctrlEvent = this.createMockEvent(17);
+
+    // Ctrl key with sticky mode
+    this.ctrlStickyEvent = this.createMockEvent(17, {stickyMode: true});
+
+    // Ctrl key with prefix mode
+    this.ctrlPrefixEvent = this.createMockEvent(17, {prefixKey: true});
+
+    // 'a' key, no modifiers
+    this.aEvent = this.createMockEvent(65);
+
+    // 'a' key with ctrl held down
+    this.ctrlAEvent = this.createMockEvent(65, {ctrlKey: true});
+
+    // 'a' key with meta held down
+    this.metaAEvent = this.createMockEvent(65, {metaKey: true});
+
+    // 'a' key with shift held down
+    this.shiftAEvent = this.createMockEvent(65, {shiftKey: true});
+
+    // 'a' key with alt (which is the mock ChromeVox modifier) and shift held
+    // down.
+    this.altShiftAEvent = this.createMockEvent(65, {altKey: true,
+                                                    shiftKey: true});
+
+    // 'a' key with shift and prefix held down
+    this.shiftAPrefixEvent = this.createMockEvent(65, {shiftKey: true,
+                                                       prefixKey: true});
+
+    // 'a' key with shift and sticky mode
+    this.shiftAStickyEvent = this.createMockEvent(65, {shiftKey: true,
+                                                       stickyMode: true});
+
+    // 'a' key with sticky mode
+    this.aEventSticky = this.createMockEvent(65, {stickyMode: true});
+
+    // 'a' key with prefix key
+    this.aEventPrefix = this.createMockEvent(65, {prefixKey: true});
+
+    // 'a' key with alt (which is the mock ChromeVox modifier) held down
+    this.altAEvent = this.createMockEvent(65, {altKey: true});
+
+    // 'b' key, no modifiers
+    this.bEvent = this.createMockEvent(66);
+
+    // 'b' key, with ctrl held down
+    this.ctrlBEvent = this.createMockEvent(66, {ctrlKey: true});
+
+    // 'c' key, no modifiers
+    this.cEvent = this.createMockEvent(67);
+
+    // Shift key with ctrl held down
+    this.ctrlShiftEvent = this.createMockEvent(60, {ctrlKey: true});
+
+    // Ctrl key with shift held down
+    this.shiftCtrlEvent = this.createMockEvent(17, {shiftKey: true});
+  }
+};
+
+TEST_F('CvoxKeySequenceUnitTest', 'SimpleSequenceNoModifier', function() {
+  var downKey = new cvox.KeySequence(this.downArrowEvent, false);
+
+  assertEqualsJSON([40], downKey.keys.keyCode);
+  assertFalse(downKey.stickyMode);
+  assertFalse(downKey.prefixKey);
+  assertFalse(downKey.cvoxModifier);
+
+  assertEqualsJSON([false], downKey.keys.altGraphKey);
+  assertEqualsJSON([false], downKey.keys.altKey);
+  assertEqualsJSON([false], downKey.keys.ctrlKey);
+  assertEqualsJSON([false], downKey.keys.metaKey);
+  assertEqualsJSON([false], downKey.keys.searchKeyHeld);
+  assertEqualsJSON([false], downKey.keys.shiftKey);
+
+  assertEquals(1, downKey.length());
+});
+
+
+/** Test another key sequence, this time with the modifier */
+TEST_F('CvoxKeySequenceUnitTest', 'SimpleSequenceWithModifier', function() {
+  var downKey = new cvox.KeySequence(this.downArrowEvent, true);
+
+  assertEqualsJSON([40], downKey.keys.keyCode);
+  assertFalse(downKey.stickyMode);
+  assertFalse(downKey.prefixKey);
+  assertTrue(downKey.cvoxModifier);
+
+  assertEqualsJSON([false], downKey.keys.altGraphKey);
+  assertEqualsJSON([false], downKey.keys.altKey);
+  assertEqualsJSON([false], downKey.keys.ctrlKey);
+  assertEqualsJSON([false], downKey.keys.metaKey);
+  assertEqualsJSON([false], downKey.keys.searchKeyHeld);
+  assertEqualsJSON([false], downKey.keys.shiftKey);
+
+  assertEquals(1, downKey.length());
+});
+
+
+/** Test a key sequence that includes the modifier */
+TEST_F('CvoxKeySequenceUnitTest', 'ModifiedSequence', function() {
+  var cvoxDownKey = new cvox.KeySequence(this.altDownArrowEvent, true);
+
+  assertEqualsJSON([40], cvoxDownKey.keys.keyCode);
+  assertFalse(cvoxDownKey.stickyMode);
+  assertFalse(cvoxDownKey.prefixKey);
+  assertTrue(cvoxDownKey.cvoxModifier);
+
+  assertEqualsJSON([false], cvoxDownKey.keys.altGraphKey);
+  assertEqualsJSON([false], cvoxDownKey.keys.altKey);
+  assertEqualsJSON([false], cvoxDownKey.keys.ctrlKey);
+  assertEqualsJSON([false], cvoxDownKey.keys.metaKey);
+  assertEqualsJSON([false], cvoxDownKey.keys.searchKeyHeld);
+  assertEqualsJSON([false], cvoxDownKey.keys.shiftKey);
+
+  assertEquals(1, cvoxDownKey.length());
+});
+
+
+/**
+ * Test equality - Ctrl key vs. Ctrl key with sticky mode on
+ * These should be equal because Ctrl should still function even with
+ * sticky mode on.
+*/
+TEST_F('CvoxKeySequenceUnitTest', 'StickyEquality', function() {
+  var ctrlKey = new cvox.KeySequence(this.ctrlEvent, false);
+  var ctrlSticky = new cvox.KeySequence(this.ctrlStickyEvent, false);
+
+  assertTrue(ctrlKey.equals(ctrlSticky));
+});
+
+
+/**
+ * Test equality - 'a' key with Shift modifier vs. 'a' key without Shift
+ * modifier.
+ * These should not be equal because they do not have the same modifiers.
+*/
+TEST_F('CvoxKeySequenceUnitTest', 'ShiftEquality', function() {
+  var aKey = new cvox.KeySequence(this.aEvent, false);
+  var shiftA = new cvox.KeySequence(this.shiftAEvent, false);
+
+  assertFalse(aKey.equals(shiftA));
+});
+
+
+/**
+ * Test equality - 'a' with ChromeVox modifier specified, 'a' with sticky mode
+ * on, 'a' with prefix key, and 'a' with ChromeVox modifier held down. These
+ * should all be equal to each other.
+ */
+TEST_F('CvoxKeySequenceUnitTest', 'FourWayEquality', function() {
+  var commandSequence = new cvox.KeySequence(this.aEvent, true);
+  var stickySequence = new cvox.KeySequence(this.aEventSticky, false);
+  var prefixSequence = new cvox.KeySequence(this.aEventPrefix, false);
+  var cvoxModifierSequence = new cvox.KeySequence(this.altAEvent);
+
+  assertTrue(commandSequence.equals(stickySequence));
+  assertTrue(commandSequence.equals(prefixSequence));
+  assertTrue(commandSequence.equals(cvoxModifierSequence));
+
+  assertTrue(stickySequence.equals(commandSequence));
+  assertTrue(stickySequence.equals(prefixSequence));
+  assertTrue(stickySequence.equals(cvoxModifierSequence));
+
+  assertTrue(prefixSequence.equals(commandSequence));
+  assertTrue(prefixSequence.equals(stickySequence));
+  assertTrue(prefixSequence.equals(cvoxModifierSequence));
+
+  assertTrue(cvoxModifierSequence.equals(commandSequence));
+  assertTrue(cvoxModifierSequence.equals(stickySequence));
+  assertTrue(cvoxModifierSequence.equals(prefixSequence));
+});
+
+
+/**
+ * Test equality - 'a' key with Shift modifier and prefix vs. 'a' key with Shift
+ * modifier and sticky mode vs. 'a' key with Shift modifier and ChromeVox
+ * modifier specified vs. 'a' key with ChromeVox modifier held down.
+ * These should all be equal to each other..
+*/
+TEST_F('CvoxKeySequenceUnitTest', 'ShiftPrefixEquality', function() {
+  var shiftAWithModifier = new cvox.KeySequence(this.shiftAEvent, true);
+  var shiftAWithPrefix = new cvox.KeySequence(this.shiftAPrefixEvent, false);
+  var shiftASticky = new cvox.KeySequence(this.shiftAStickyEvent, false);
+  var cvoxShiftA = new cvox.KeySequence(this.altShiftAEvent);
+
+  assertTrue(shiftAWithModifier.equals(shiftAWithPrefix));
+  assertTrue(shiftAWithModifier.equals(shiftASticky));
+  assertTrue(shiftAWithModifier.equals(cvoxShiftA));
+
+  assertTrue(shiftAWithPrefix.equals(shiftAWithModifier));
+  assertTrue(shiftAWithPrefix.equals(shiftASticky));
+  assertTrue(shiftAWithPrefix.equals(cvoxShiftA));
+
+  assertTrue(shiftASticky.equals(shiftAWithPrefix));
+  assertTrue(shiftASticky.equals(shiftAWithModifier));
+  assertTrue(shiftASticky.equals(cvoxShiftA));
+
+  assertTrue(cvoxShiftA.equals(shiftAWithModifier));
+  assertTrue(cvoxShiftA.equals(shiftAWithPrefix));
+  assertTrue(cvoxShiftA.equals(shiftASticky));
+});
+
+
+/**
+ * Test inequality - 'a' with modifier key vs. 'a' without modifier key.
+ * These should not be equal.
+*/
+TEST_F('CvoxKeySequenceUnitTest', 'Inequality', function() {
+  var aNoModifier = new cvox.KeySequence(this.aEvent, false);
+  var aWithModifier = new cvox.KeySequence(this.aEvent, true);
+
+  assertFalse(aNoModifier.equals(aWithModifier));
+  assertFalse(aWithModifier.equals(aNoModifier));
+});
+
+
+/**
+ * Test equality - adding an additional key onto a sequence.
+ */
+TEST_F('CvoxKeySequenceUnitTest', 'CvoxCtrl', function() {
+  var cvoxCtrlSequence = new cvox.KeySequence(this.ctrlEvent, true);
+  assertTrue(cvoxCtrlSequence.addKeyEvent(this.rightArrowEvent));
+
+  assertEquals(2, cvoxCtrlSequence.length());
+
+  // Can't add more than two key events.
+  assertFalse(cvoxCtrlSequence.addKeyEvent(this.rightArrowEvent));
+
+  var cvoxCtrlStickySequence = new cvox.KeySequence(this.ctrlStickyEvent,
+                                                    false);
+  assertTrue(cvoxCtrlStickySequence.addKeyEvent(this.rightArrowEvent));
+
+  var mockCtrlPrefixSequence = new cvox.KeySequence(this.ctrlPrefixEvent,
+                                                    false);
+  assertTrue(mockCtrlPrefixSequence.addKeyEvent(this.rightArrowEvent));
+
+  assertTrue(cvoxCtrlSequence.equals(cvoxCtrlStickySequence));
+  assertTrue(cvoxCtrlStickySequence.equals(cvoxCtrlSequence));
+
+  assertTrue(cvoxCtrlSequence.equals(mockCtrlPrefixSequence));
+  assertTrue(mockCtrlPrefixSequence.equals(cvoxCtrlSequence));
+
+  assertTrue(cvoxCtrlStickySequence.equals(mockCtrlPrefixSequence));
+  assertTrue(mockCtrlPrefixSequence.equals(cvoxCtrlStickySequence));
+});
+
+
+/**
+ * Test for inequality - key sequences in different orders.
+ */
+TEST_F('CvoxKeySequenceUnitTest', 'DifferentSequences', function() {
+  var cvoxBSequence = new cvox.KeySequence(this.bEvent, true);
+  assertTrue(cvoxBSequence.addKeyEvent(this.cEvent));
+
+  var cvoxCSequence = new cvox.KeySequence(this.cEvent, false);
+  assertTrue(cvoxCSequence.addKeyEvent(this.bEvent));
+
+  assertFalse(cvoxBSequence.equals(cvoxCSequence));
+  assertFalse(cvoxCSequence.equals(cvoxBSequence));
+});
+
+
+/**
+ * Tests modifiers (ctrl, alt, etc) - if two sequences have different modifiers
+ * held down then they aren't equal.
+ */
+TEST_F('CvoxKeySequenceUnitTest', 'MoreModifiers', function() {
+  var ctrlASequence = new cvox.KeySequence(this.ctrlAEvent, false);
+  var ctrlModifierKeyASequence = new cvox.KeySequence(this.ctrlAEvent, true);
+
+  var ctrlBSequence = new cvox.KeySequence(this.ctrlBEvent, false);
+
+  var metaASequence = new cvox.KeySequence(this.metaAEvent, false);
+
+  assertFalse(ctrlASequence.equals(metaASequence));
+  assertFalse(ctrlASequence.equals(ctrlModifierKeyASequence));
+  assertFalse(ctrlASequence.equals(ctrlBSequence));
+});
+
+
+/**
+ * Tests modifier (ctrl, alt, etc) order - if two sequences have the same
+ * modifiers but held down in a different order then they aren't equal.
+ */
+TEST_F('CvoxKeySequenceUnitTest', 'ModifierOrder', function() {
+  var ctrlShiftSequence = new cvox.KeySequence(this.ctrlShiftEvent, false);
+  var shiftCtrlSequence = new cvox.KeySequence(this.shiftCtrlEvent, true);
+
+  assertFalse(ctrlShiftSequence.equals(shiftCtrlSequence));
+});
+
+
+/**
+ * Tests converting from a string to a KeySequence object.
+ */
+TEST_F('CvoxKeySequenceUnitTest', 'FromStr', function() {
+  var ctrlString = cvox.KeySequence.fromStr('Ctrl');
+  assertEqualsJSON(ctrlString.keys.ctrlKey, [true]);
+  assertEqualsJSON(ctrlString.keys.keyCode, [17]);
+
+  var modifiedLetterString = cvox.KeySequence.fromStr('Ctrl+Z');
+  assertEqualsJSON(modifiedLetterString.keys.ctrlKey, [true]);
+  assertEqualsJSON(modifiedLetterString.keys.keyCode, [90]);
+
+  var keyCodeString = cvox.KeySequence.fromStr('#9');
+  assertEqualsJSON(keyCodeString.keys.keyCode, [9]);
+
+  var modifiedKeyCodeString = cvox.KeySequence.fromStr('Shift+#9');
+  assertEqualsJSON(modifiedKeyCodeString.keys.shiftKey, [true]);
+  assertEqualsJSON(modifiedKeyCodeString.keys.keyCode, [9]);
+
+  var cvoxLetterString = cvox.KeySequence.fromStr('Cvox+U');
+  assertTrue(cvoxLetterString.cvoxModifier);
+  assertEqualsJSON(cvoxLetterString.keys.keyCode, [85]);
+
+  var cvoxSequenceString = cvox.KeySequence.fromStr('Cvox+C>T');
+  assertTrue(cvoxSequenceString.cvoxModifier);
+  assertEqualsJSON(cvoxSequenceString.keys.keyCode, [67, 84]);
+
+  var cvoxSequenceKeyCodeString = cvox.KeySequence.fromStr('Cvox+L>#186');
+  assertTrue(cvoxSequenceKeyCodeString.cvoxModifier);
+  assertEqualsJSON(cvoxSequenceKeyCodeString.keys.keyCode, [76, 186]);
+
+  var stickyString = cvox.KeySequence.fromStr('Insert>Insert+');
+  assertEqualsJSON(stickyString.keys.keyCode, [45, 45]);
+});
+
+
+/**
+ * Tests converting from a JSON string to a KeySequence object.
+ */
+TEST_F('CvoxKeySequenceUnitTest', 'Deserialize', function() {
+  var forwardSequence = cvox.KeySequence.deserialize({'cvoxModifier': true,
+      'stickyMode': false, 'prefixKey': false, 'keys': {'ctrlKey': [false],
+      'searchKeyHeld': [false], 'altKey': [false], 'altGraphKey': [false],
+      'shiftKey': [false], 'metaKey': [false], 'keyCode': [40]}});
+  assertTrue(forwardSequence.cvoxModifier);
+  assertEqualsJSON(forwardSequence.keys.keyCode, [40]);
+
+  var ctrlSequence = cvox.KeySequence.deserialize({'cvoxModifier': false,
+      'stickyMode': true, 'prefixKey': false, 'keys': {'ctrlKey': [true],
+      'searchKeyHeld': [false], 'altKey': [false], 'altGraphKey': [false],
+      'shiftKey': [false], 'metaKey': [false], 'keyCode': [17]}});
+  assertEqualsJSON(ctrlSequence.keys.ctrlKey, [true]);
+  assertEqualsJSON(ctrlSequence.keys.keyCode, [17]);
+});