Automated tests for the shift key.

chrome/test/data/chromeos/virtual_keyboard/control_keys_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.
+ */
+
+/**
+ * Retrieves the left or right shift keys. Shift keys come in pairs for upper
+ * and lowercase keyboard layouts respectively.
+ * @param {string} alignment Which of {left, right} shift keys to return.
+ * @return {Object.<string: Object>} a map from keyset to the shift key in it.
+ */
+function getShiftKeys(alignment) {
+  var layout = keyboard.layout;
+  var keysets = ['lower', 'upper'];
+
+  var result={};
+  for(var keysetIndex in keysets) {
+    var keysetId = keysets[keysetIndex];
+    // The keyset DOM object which contains a shift key.
+    var keyset = keyboard.querySelector('#' + layout + "-" + keysetId);
+    assertTrue(!!keyset, "Cannot find keyset: " + keyset);
+    var shiftKey = keyset.querySelector('kb-shift-key[align="' +
+        alignment + '"]');
+    assertTrue(!!shiftKey, "Keyset " + keysetId +
+        " does not have a shift key with " + alignment + " alignment");
+    result[keysetId] = shiftKey;
+  }
+  return result;
+}
+
+/**
+ * Tests chording with a single shift key.
+ * @param {Object} lowerShift, a shift key in the lower key set.
+ * @param {Object} uppserShift, the same shift key in the upper key set.
+ */
+function checkShiftChording(lowerShift, upperShift) {
+  var lower = lowerShift.lowerCaseKeysetId;
+  var upper = lowerShift.upperCaseKeysetId;
+  // Check that we're testing from correct initial state.
+  assertEquals(lower, keyboard.keyset, "Invalid initial keyset.");
+  var mockEvent = {pointerId:1, isPrimary:true};
+  lowerShift.down(mockEvent);
+  assertEquals(upper, keyboard.keyset,
+      "Unexpected keyset transition on shift key down.");
+  // Some alphanumeric character
+  mockTypeCharacter('A', 0x41, true);
+  assertEquals(upper, keyboard.keyset,
+      "Did not remain in uppercase on key press while chording.");
+  mockTimer.tick(1000);
+  upperShift.up(mockEvent);
+  assertEquals(lower, keyboard.keyset,
+      "Did not revert to lowercase after chording.");
+}
+
+/**
+ * Tests a particular shift key for highlighting on tapping. The keyboard
+ * should temporarily transition to uppercase, and after a non-control tap,
+ * revert to lower case.
+ * @param {Object} lowerShift The shift key object on the lower keyset.
+ * @param {Object} upperShift The shift key object on the upper keyset.
+ */
+function checkShiftHighlight(lowerShift, upperShift) {
+  assertTrue(!!keyboard.shift, "Shift key was not cached by keyboard");
+  var unlocked = lowerShift.lowerCaseKeysetId;
+  var locked = lowerShift.upperCaseKeysetId;
+  assertEquals(unlocked, keyboard.keyset,
+      "Invalid initial keyboard keyset.");
+  // Crashes if we don't give it a pointerId.
+  var mockEvent = { pointerId: 1};
+  // Tap shift key.
+  lowerShift.down(mockEvent);
+  upperShift.up(mockEvent);
+  // Tests that we are now in locked case.
+  assertEquals(locked, keyboard.keyset,
+      "Unexpected keyset transition after typing shift.");
+  // Some alphanumeric character.
+  mockTypeCharacter('A', 0x41, true);
+  // Check that we've reverted to lower case.
+  assertEquals(unlocked, keyboard.keyset,
+      "Did not revert to lower case after highlight.");
+  // Check that we persist in lower case.
+  mockTypeCharacter('a', 0x41, false);
+  assertEquals(unlocked, keyboard.keyset,
+      "Did not stay in lower case after highlight.");
+}
+
+/**
+ * Tests that a particular shift key has been initialized correctly.
+ * @param {Object} shift The shift key.
+ */
+function checkShiftInitialState(shift) {
+  //Checks that the unlocked case is lower.
+  var unlocked = 'lower';
+  assertEquals(unlocked, shift.lowerCaseKeysetId,
+      "Mismatched lowerCaseKeysetId.");
+  //Checks that the locked case is upper.
+  var locked = 'upper';
+  assertEquals(locked, shift.upperCaseKeysetId,
+      "Mismatched upperCaseKeysetId.");
+}
+
+/**
+ * Tests that a particular shift key capitalizes on long press.
+ * @param {Object} shift The shift key.
+ */
+function checkShiftLongPress(lowerShift, upperShift) {
+  // Check that keyboard is in expected start state.
+  assertTrue(!!keyboard.shift, "Shift key was not cached by keyboard");
+  var unlocked = lowerShift.lowerCaseKeysetId;
+  var locked = lowerShift.upperCaseKeysetId;
+  assertEquals(unlocked, keyboard.keyset,
+      "Invalid initial keyboard keyset.");
+  // Mocks a pointer event.
+  var mockEvent = { pointerId: 1};
+  lowerShift.down(mockEvent);
+  assertEquals(locked, keyboard.keyset,
+      "Invalid transition on shift key down.");
+  // Long press should now be active.
+  mockTimer.tick(1000);
+  // Type any caps character, make sure we remain in caps mode.
+  upperShift.up(mockEvent);
+  mockTypeCharacter('A', 0x41, true);
+  assertEquals(locked, keyboard.keyset,
+      "Did not remain in locked case after shift long press.");
+  // Revert to lower case.
+  upperShift.down(mockEvent);
+  assertEquals(unlocked, keyboard.keyset,
+      "Did not revert to lower case on shift down.");
+  lowerShift.up(mockEvent);
+}
+
+/**
+ * Tests that a particular shift key capitalizes on double click.
+ * @param {Object} lowerShift The shift key in the lower keyset.
+ * @param {Object} upperShift The shift key in the upper keyset.
+ */
+function checkShiftDoubleClick(lowerShift, upperShift) {
+  // Check that keyboard is in expected start state.
+  assertTrue(!!keyboard.shift, "Shift key was not cached by keyboard");
+  var unlocked = lowerShift.lowerCaseKeysetId;
+  var locked = lowerShift.upperCaseKeysetId;
+  assertEquals(unlocked, keyboard.keyset,
+      "Invalid initial keyboard keyset.");
+  // Mocks a pointer event.
+  var mockEvent = {pointerId: 1};
+  lowerShift.down(mockEvent);
+  upperShift.up(mockEvent);
+  // Need to also mock a keyboard pointer up event.
+  keyboard.up(mockEvent);
+  upperShift.down(mockEvent);
+  upperShift.up(mockEvent);
+  keyboard.up(mockEvent);
+  // Check that we're capslocked.
+  assertEquals(locked, keyboard.keyset,
+      "Did not lock on double click.");
+  mockTypeCharacter('A', 0x41, true);
+  assertEquals(locked, keyboard.keyset,
+      "Did not remain in locked case after typing another key.");
+  // Reverts to lower case.
+  upperShift.down(mockEvent);
+  assertEquals(unlocked, keyboard.keyset,
+      "Did not revert to lower case on shift down.");
+  lowerShift.up(mockEvent);
+}
+/**
+ * Asynchronously tests highlighting of the left and right shift keys.
+ * @param {function} testDoneCallBack The function to be called
+ * on completion.
+ */
+function testShiftHighlightAsync(testDoneCallback) {
+  var runTest = function() {
+    var alignments = ['left', 'right'];
+    for (var i in alignments) {
+      var alignment = alignments[i];
+      var shifts = getShiftKeys(alignment);
+      checkShiftHighlight(shifts['lower'], shifts['upper']);
+   }
+  };
+  onKeyboardReady('testShiftKeyHighlightAsync', runTest, testDoneCallback);
+}
+
+/**
+ * Asynchronously tests initialization of the left and right shift keys.
+ * @param {function} testDoneCallBack The function to be called
+ * on completion.
+ */
+function testShiftKeyInitAsync(testDoneCallback) {
+  var runTest = function() {
+    var alignments = ['left', 'right'];
+    for (var i in alignments) {
+      var alignment = alignments[i];
+      var shifts = getShiftKeys(alignment);
+      checkShiftInitialState(shifts['lower']);
+      checkShiftInitialState(shifts['upper']);
+   }
+  };
+  onKeyboardReady('testShiftKeyInitAsync', runTest, testDoneCallback);
+}
+
+/**
+ * Asynchronously tests capitalization on double click of the left and
+ * right shift keys.
+ * @param {function} testDoneCallBack The function to be called
+ * on completion.
+ */
+function testShiftDoubleClickAsync(testDoneCallback) {
+    var runTest = function() {
+    var alignments = ['left', 'right'];
+    for (var i in alignments) {
+      var alignment = alignments[i];
+      var shifts = getShiftKeys(alignment);
+      checkShiftDoubleClick(shifts['lower'], shifts['upper']);
+   }
+  };
+  onKeyboardReady('testShiftDoubleClickAsync', runTest, testDoneCallback);
+}
+
+/**
+ * Asynchronously tests capitalization on long press of the left and
+ * right shift keys.
+ * @param {function} testDoneCallBack The callback function to be called
+ * on completion.
+ */
+function testShiftLongPressAsync(testDoneCallback) {
+  var runTest = function() {
+    var alignments = ['left', 'right'];
+    for (var i in alignments) {
+      var alignment = alignments[i];
+      var shifts = getShiftKeys(alignment);
+      checkShiftLongPress(shifts['lower'], shifts['upper']);
+   }
+  };
+  onKeyboardReady('testShiftLongPressAsync', runTest, testDoneCallback);
+}
+
+/**
+ * Asynchronously tests chording on the keyboard.
+ * @param {function} testDoneCallBack The callback function to be called
+ * on completion.
+ */
+function testShiftChordingAsync(testDoneCallback) {
+  var runTest = function() {
+    var left = getShiftKeys('left');
+    var right = getShiftKeys('right');
+    checkShiftChording(left['lower'], left['upper']);
+    checkShiftChording(right['lower'], right['upper']);
+   }
+  onKeyboardReady('testShiftChordingAsync', runTest, testDoneCallback);
+}