// 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.

// TODO(robliao,vadimt): Determine the granularity of testing to perform.

/**
 * Test fixture for background.js.
 * @constructor
 * @extends {testing.Test}
 */
function GoogleNowBackgroundUnitTest () {
  testing.Test.call(this);
}

GoogleNowBackgroundUnitTest.prototype = {
  __proto__: testing.Test.prototype,

  /** @override */
  extraLibraries: [
    'common_test_util.js',
    'background_test_util.js',
    'background.js'
  ]
};

var TEST_NAME = 'GoogleNowBackgroundUnitTest';

/**
 * Tasks Conflict Test
 */
TEST_F(TEST_NAME, 'AreTasksConflicting', function() {
  function testTaskPair(newTaskName, scheduledTaskName, expected) {
    assertTrue(areTasksConflicting(newTaskName, scheduledTaskName) == expected,
               '(' + newTaskName + ', ' + scheduledTaskName + ')');
  }

  testTaskPair(UPDATE_CARDS_TASK_NAME, UPDATE_CARDS_TASK_NAME, true);
  testTaskPair(UPDATE_CARDS_TASK_NAME, DISMISS_CARD_TASK_NAME, false);
  testTaskPair(UPDATE_CARDS_TASK_NAME, RETRY_DISMISS_TASK_NAME, false);
  testTaskPair(UPDATE_CARDS_TASK_NAME, STATE_CHANGED_TASK_NAME, false);

  testTaskPair(DISMISS_CARD_TASK_NAME, UPDATE_CARDS_TASK_NAME, false);
  testTaskPair(DISMISS_CARD_TASK_NAME, DISMISS_CARD_TASK_NAME, false);
  testTaskPair(DISMISS_CARD_TASK_NAME, RETRY_DISMISS_TASK_NAME, false);
  testTaskPair(DISMISS_CARD_TASK_NAME, STATE_CHANGED_TASK_NAME, false);

  testTaskPair(RETRY_DISMISS_TASK_NAME, UPDATE_CARDS_TASK_NAME, true);
  testTaskPair(RETRY_DISMISS_TASK_NAME, DISMISS_CARD_TASK_NAME, true);
  testTaskPair(RETRY_DISMISS_TASK_NAME, RETRY_DISMISS_TASK_NAME, true);
  testTaskPair(RETRY_DISMISS_TASK_NAME, STATE_CHANGED_TASK_NAME, false);

  testTaskPair(STATE_CHANGED_TASK_NAME, UPDATE_CARDS_TASK_NAME, false);
  testTaskPair(STATE_CHANGED_TASK_NAME, DISMISS_CARD_TASK_NAME, false);
  testTaskPair(STATE_CHANGED_TASK_NAME, RETRY_DISMISS_TASK_NAME, false);
  testTaskPair(STATE_CHANGED_TASK_NAME, STATE_CHANGED_TASK_NAME, false);
});

/**
 * Server Request Tests
 */
TEST_F(TEST_NAME, 'AuthServerRequestSuccess', function() {
  expectServerRequests(this, 200, '{}');
  var callbackCalled = false;
  requestFromServer('GET', 'test/target').then(function(request) {
    callbackCalled = true;
    assertTrue(request.status === 200);
    assertTrue(request.responseText === '{}');
  });
  assertTrue(callbackCalled);
});

TEST_F(TEST_NAME, 'AuthServerRequestForbidden', function() {
  this.makeAndRegisterMockApis(['authenticationManager.removeToken']);
  this.mockApis.expects(once()).authenticationManager_removeToken(ANYTHING);

  expectServerRequests(this, 403, '');

  var thenCalled = false;
  var catchCalled = false;
  requestFromServer('GET', 'test/target').then(function(request) {
    thenCalled = true;
  }).catch(function(request) {
    // The promise is rejected on HTTP failures.
    catchCalled = true;
    assertTrue(request.status === 403);
  });
  assertFalse(thenCalled);
  assertTrue(catchCalled);
});

TEST_F(TEST_NAME, 'AuthServerRequestNoAuth', function() {
  this.makeAndRegisterMockApis(['authenticationManager.removeToken']);
  this.mockApis.expects(once()).authenticationManager_removeToken(ANYTHING);

  expectServerRequests(this, 401, '');

  var thenCalled = false;
  var catchCalled = false;
  requestFromServer('GET', 'test/target').then(function(request) {
    thenCalled = true;
  }).catch(function(request) {
    // The promise is rejected on HTTP failures.
    catchCalled = true;
    assertTrue(request.status === 401);
  });
  assertFalse(thenCalled);
  assertTrue(catchCalled);
});

function expectServerRequests(fixture, httpStatus, responseText) {
  fixture.makeAndRegisterMockApis([
    'authenticationManager.getAuthToken',
    'buildServerRequest'
  ]);

  function XMLHttpRequest() {}

  XMLHttpRequest.prototype = {
    addEventListener: function(type, listener, wantsUntrusted) {},
    setRequestHeader: function(header, value) {},
    send: function() {}
  }

  fixture.mockApis.expects(once()).authenticationManager_getAuthToken()
      .will(returnValue(Promise.resolve('token')));

  var mockXMLHttpRequest = mock(XMLHttpRequest);
  var mockXMLHttpRequestProxy = mockXMLHttpRequest.proxy();
  fixture.mockApis.expects(once())
      .buildServerRequest(ANYTHING, ANYTHING, ANYTHING)
      .will(returnValue(mockXMLHttpRequestProxy));

  mockXMLHttpRequest.expects(once())
      .setRequestHeader('Authorization', 'Bearer token');

  var loadEndSavedArgs = new SaveMockArguments();
  mockXMLHttpRequest.expects(once())
      .addEventListener(
          loadEndSavedArgs.match(eq('loadend')),
          loadEndSavedArgs.match(ANYTHING),
          loadEndSavedArgs.match(eq(false)));

  mockXMLHttpRequestProxy.status = httpStatus;
  mockXMLHttpRequestProxy.response = responseText;
  mockXMLHttpRequestProxy.responseText = responseText;

  mockXMLHttpRequest.expects(once()).send()
      .will(invokeCallback(loadEndSavedArgs, 1, mockXMLHttpRequestProxy));
}

TEST_F(TEST_NAME, 'AuthServerRequestNoToken', function() {
  this.makeAndRegisterMockApis([
    'authenticationManager.getAuthToken',
    'buildServerRequest'
  ]);

  this.mockApis.expects(once()).authenticationManager_getAuthToken()
      .will(returnValue(Promise.reject()));
  this.mockApis.expects(never()).buildServerRequest()

  var thenCalled = false;
  var catchCalled = false;
  requestFromServer('GET', 'test/target').then(function(request) {
    thenCalled = true;
  }).catch(function() {
    catchCalled = true;
  });
  assertFalse(thenCalled);
  assertTrue(catchCalled);
})

/**
 * requestNotificationGroupsFromServer Tests
 */
TEST_F(TEST_NAME, 'RequestNotificationGroupsFromServerEmpty', function() {
  this.makeAndRegisterMockGlobals([
    'shouldShowExplanatoryCard',
    'recordEvent',
    'requestFromServer'
  ]);

  this.mockGlobals.expects(once()).shouldShowExplanatoryCard()
      .will(returnValue(false));

  this.mockGlobals.expects(once()).recordEvent(
      GoogleNowEvent.REQUEST_FOR_CARDS_TOTAL);

  this.mockGlobals.expects(once()).recordEvent(
      GoogleNowEvent.REQUEST_FOR_CARDS_SUCCESS);

  var requestFromServerArgs = new SaveMockArguments();
  this.mockGlobals.expects(once()).requestFromServer(
      requestFromServerArgs.match(eq('GET')),
      requestFromServerArgs.match(ANYTHING))
      .will(returnValue(
          Promise.resolve({status: 200, responseText: "{}"})));

  var thenCalled = false;
  var catchCalled = false;
  requestNotificationGroupsFromServer([]).then(function() {
    thenCalled = true;
  }).catch(function() {
    catchCalled = true;
  });
  assertTrue(thenCalled);
  assertFalse(catchCalled);

  var pathAndQuery = requestFromServerArgs.arguments[1];
  var query = pathAndQuery.split('?')[1];
  assertTrue(query.search('timeZoneOffsetMs') >= 0);
  assertTrue(query.search('uiLocale') >= 0);
  assertFalse(query.search('cardExplanation') >= 0);
});

TEST_F(TEST_NAME, 'RequestNotificationGroupsFromServerWithGroups', function() {
  this.makeAndRegisterMockGlobals([
    'shouldShowExplanatoryCard',
    'recordEvent',
    'requestFromServer'
  ]);

  this.mockGlobals.expects(once()).shouldShowExplanatoryCard()
      .will(returnValue(false));

  this.mockGlobals.expects(once()).recordEvent(
      GoogleNowEvent.REQUEST_FOR_CARDS_TOTAL);

  this.mockGlobals.expects(once()).recordEvent(
      GoogleNowEvent.REQUEST_FOR_CARDS_SUCCESS);

  var requestFromServerArgs = new SaveMockArguments();
  this.mockGlobals.expects(once()).requestFromServer(
      requestFromServerArgs.match(eq('GET')),
      requestFromServerArgs.match(ANYTHING))
      .will(returnValue(
          Promise.resolve({status: 200, responseText: "{}"})));

  var thenCalled = false;
  var catchCalled = false;
  requestNotificationGroupsFromServer(['A', 'B', 'C']).then(function() {
    thenCalled = true;
  }).catch(function() {
    catchCalled = true;
  });
  assertTrue(thenCalled);
  assertFalse(catchCalled);

  var pathAndQuery = requestFromServerArgs.arguments[1];
  var query = pathAndQuery.split('?')[1];
  assertTrue(query.search('timeZoneOffsetMs') >= 0);
  assertTrue(query.search('uiLocale') >= 0);
  assertFalse(query.search('cardExplanation') >= 0);
  assertTrue(query.search('requestTypes=A') >= 0);
  assertTrue(query.search('requestTypes=B') >= 0);
  assertTrue(query.search('requestTypes=C') >= 0);
});

TEST_F(TEST_NAME, 'RequestNotificationGroupsFromServerExplanatory', function() {
  this.makeAndRegisterMockGlobals([
    'shouldShowExplanatoryCard',
    'recordEvent',
    'requestFromServer'
  ]);

  this.mockGlobals.expects(once()).shouldShowExplanatoryCard()
      .will(returnValue(true));

  this.mockGlobals.expects(once()).recordEvent(
      GoogleNowEvent.REQUEST_FOR_CARDS_TOTAL);

  this.mockGlobals.expects(once()).recordEvent(
      GoogleNowEvent.REQUEST_FOR_CARDS_SUCCESS);

  var requestFromServerArgs = new SaveMockArguments();
  this.mockGlobals.expects(once()).requestFromServer(
      requestFromServerArgs.match(eq('GET')),
      requestFromServerArgs.match(ANYTHING))
      .will(returnValue(
          Promise.resolve({status: 200, responseText: "{}"})));

  var thenCalled = false;
  var catchCalled = false;
  requestNotificationGroupsFromServer([]).then(function() {
    thenCalled = true;
  }).catch(function() {
    catchCalled = true;
  });
  assertTrue(thenCalled);
  assertFalse(catchCalled);

  var pathAndQuery = requestFromServerArgs.arguments[1];
  var query = pathAndQuery.split('?')[1];
  assertTrue(query.search('timeZoneOffsetMs') >= 0);
  assertTrue(query.search('uiLocale') >= 0);
  assertTrue(query.search('cardExplanation=true') >= 0);
});

TEST_F(TEST_NAME, 'RequestNotificationGroupsFromServerFailure', function() {
  this.makeAndRegisterMockGlobals([
    'shouldShowExplanatoryCard',
    'recordEvent',
    'requestFromServer'
  ]);

  this.mockGlobals.expects(once()).shouldShowExplanatoryCard()
      .will(returnValue(false));

  this.mockGlobals.expects(once()).recordEvent(
      GoogleNowEvent.REQUEST_FOR_CARDS_TOTAL);

  this.mockGlobals.expects(never()).recordEvent(
      GoogleNowEvent.REQUEST_FOR_CARDS_SUCCESS);

  var requestFromServerArgs = new SaveMockArguments();
  this.mockGlobals.expects(once()).requestFromServer(
      requestFromServerArgs.match(eq('GET')),
      requestFromServerArgs.match(ANYTHING))
      .will(returnValue(
          Promise.reject({status: 401})));

  var thenCalled = false;
  var catchCalled = false;
  requestNotificationGroupsFromServer([]).then(function() {
    thenCalled = true;
  }).catch(function() {
    catchCalled = true;
  });
  assertFalse(thenCalled);
  assertTrue(catchCalled);
});

/**
 * requestAndUpdateOptIn Tests
 */
TEST_F(TEST_NAME, 'RequestAndUpdateOptInOptedIn', function() {
  this.makeAndRegisterMockApis([
    'chrome.storage.local.set',
    'requestFromServer'
  ]);

  this.mockApis.expects(once()).requestFromServer('GET', 'settings/optin')
      .will(returnValue(Promise.resolve({
        status: 200,
        responseText: '{"value": true}'})));

  this.mockApis.expects(once())
      .chrome_storage_local_set(eqJSON({googleNowEnabled: true}));

  var thenCalled = false;
  var catchCalled = false;
  requestAndUpdateOptedIn().then(function(optedIn) {
    thenCalled = true;
    assertTrue(optedIn);
  }).catch(function() {
    catchCalled = true;
  });
  assertTrue(thenCalled);
  assertFalse(catchCalled);
});

TEST_F(TEST_NAME, 'RequestAndUpdateOptInOptedOut', function() {
  this.makeAndRegisterMockApis([
    'chrome.storage.local.set',
    'requestFromServer'
  ]);

  this.mockApis.expects(once()).requestFromServer('GET', 'settings/optin')
      .will(returnValue(Promise.resolve({
        status: 200,
        responseText: '{"value": false}'})));

  this.mockApis.expects(once())
      .chrome_storage_local_set(eqJSON({googleNowEnabled: false}));

  var thenCalled = false;
  var catchCalled = false;
  requestAndUpdateOptedIn().then(function(optedIn) {
    thenCalled = true;
    assertFalse(optedIn);
  }).catch(function() {
    catchCalled = true;
  });
  assertTrue(thenCalled);
  assertFalse(catchCalled);
});

TEST_F(TEST_NAME, 'RequestAndUpdateOptInFailure', function() {
  this.makeAndRegisterMockApis([
    'chrome.storage.local.set',
    'requestFromServer'
  ]);

  this.mockApis.expects(once()).requestFromServer('GET', 'settings/optin')
      .will(returnValue(Promise.reject({status: 404})));

  this.mockApis.expects(never()).chrome_storage_local_set();

  var thenCalled = false;
  var catchCalled = false;
  requestAndUpdateOptedIn().then(function() {
    thenCalled = true;
  }).catch(function() {
    catchCalled = true;
  });
  assertFalse(thenCalled);
  assertTrue(catchCalled);
});

/**
 * pollOptedInNoImmediateRecheck Tests
 */
TEST_F(TEST_NAME, 'pollOptedInNoImmediateRecheckOptedIn', function() {
  this.makeAndRegisterMockApis([
    'requestAndUpdateOptedIn',
    'instrumented.metricsPrivate.getVariationParams',
    'optInPollAttempts.start'
  ]);

  this.mockApis.expects(once()).requestAndUpdateOptedIn()
      .will(returnValue(Promise.resolve(true)));

  this.mockApis.expects(never())
      .instrumented_metricsPrivate_getVariationParams();

  this.mockApis.expects(never()).optInPollAttempts_start();

  pollOptedInNoImmediateRecheck();
});

TEST_F(TEST_NAME, 'pollOptedInNoImmediateRecheckOptedOut', function() {
  this.makeAndRegisterMockApis([
    'requestAndUpdateOptedIn',
    'instrumented.metricsPrivate.getVariationParams',
    'optInPollAttempts.start'
  ]);

  this.mockApis.expects(once()).requestAndUpdateOptedIn()
      .will(returnValue(Promise.resolve(false)));

  var getVariationParamsSavedArgs = new SaveMockArguments();
  this.mockApis.expects(once())
      .instrumented_metricsPrivate_getVariationParams(
          getVariationParamsSavedArgs.match(eq('GoogleNow')),
          getVariationParamsSavedArgs.match(ANYTHING))
      .will(invokeCallback(getVariationParamsSavedArgs, 1, {}));

  this.mockApis.expects(once())
      .optInPollAttempts_start(DEFAULT_OPTIN_CHECK_PERIOD_SECONDS);

  pollOptedInNoImmediateRecheck();
});

TEST_F(TEST_NAME, 'pollOptedInNoImmediateRecheckFailure', function() {
  this.makeAndRegisterMockApis([
    'requestAndUpdateOptedIn',
    'instrumented.metricsPrivate.getVariationParams',
    'optInPollAttempts.start'
  ]);

  this.mockApis.expects(once()).requestAndUpdateOptedIn()
      .will(returnValue(Promise.reject()));

  var getVariationParamsSavedArgs = new SaveMockArguments();
  this.mockApis.expects(once())
      .instrumented_metricsPrivate_getVariationParams(
          getVariationParamsSavedArgs.match(eq('GoogleNow')),
          getVariationParamsSavedArgs.match(ANYTHING))
      .will(invokeCallback(getVariationParamsSavedArgs, 1, {}));

  this.mockApis.expects(once())
      .optInPollAttempts_start(DEFAULT_OPTIN_CHECK_PERIOD_SECONDS);

  pollOptedInNoImmediateRecheck();
});

/**
 * getGroupsToRequest Tests
 */
TEST_F(TEST_NAME, 'GetGroupsToRequestNone', function() {
  this.makeAndRegisterMockApis([
    'fillFromChromeLocalStorage',
    'Date.now'
  ]);

  this.mockApis.expects(once())
      .fillFromChromeLocalStorage(eqJSON({notificationGroups: {}}))
      .will(returnValue(Promise.resolve({notificationGroups: {}})));

  this.mockApis.expects(once()).Date_now().will(returnValue(20));

  getGroupsToRequest().then(function(groupsToRequest) {
    assertTrue(JSON.stringify(groupsToRequest) === '[]');
  });
});

TEST_F(TEST_NAME, 'GetGroupsToRequestWithGroups', function() {
  this.makeAndRegisterMockApis([
    'fillFromChromeLocalStorage',
    'Date.now'
  ]);

  this.mockApis.expects(once())
      .fillFromChromeLocalStorage(eqJSON({notificationGroups: {}}))
      .will(returnValue(Promise.resolve({notificationGroups: {
        TIME18: {nextPollTime: 18},
        TIME19: {nextPollTime: 19},
        TIME20: {nextPollTime: 20},
        TIME21: {nextPollTime: 21},
        TIME22: {nextPollTime: 22},
        TIMEUNDEF: {}
      }})));

  this.mockApis.expects(once()).Date_now().will(returnValue(20));

  getGroupsToRequest().then(function(groupsToRequest) {
    assertTrue(groupsToRequest.length == 3);
    assertTrue(groupsToRequest.indexOf('TIME18') >= 0);
    assertTrue(groupsToRequest.indexOf('TIME19') >= 0);
    assertTrue(groupsToRequest.indexOf('TIME20') >= 0);
  });
});

/**
 * combineGroup Tests
 */
TEST_F(TEST_NAME, 'CombineGroup', function() {
  // Tests combineGroup function. Verifies that both notifications with and
  // without show time are handled correctly and that cards are correctly
  // added to existing cards with same ID or start a new combined card.

  // Setup and expectations.
  var combinedCards = {
    'EXISTING CARD': [1]
  };

  var receivedNotificationNoShowTime = {
    chromeNotificationId: 'EXISTING CARD',
    trigger: {hideTimeSec: 1}
  };
  var receivedNotificationWithShowTime = {
    chromeNotificationId: 'NEW CARD',
    trigger: {showTimeSec: 2, hideTimeSec: 3}
  }

  var storedGroup = {
    cardsTimestamp: 10000,
    cards: [
      receivedNotificationNoShowTime,
      receivedNotificationWithShowTime
    ]
  };

  // Invoking the tested function.
  combineGroup(combinedCards, storedGroup);

  // Check the output value.
  var expectedCombinedCards = {
    'EXISTING CARD': [
      1,
      {
        receivedNotification: receivedNotificationNoShowTime,
        hideTime: 11000
      }
    ],
    'NEW CARD': [
      {
        receivedNotification: receivedNotificationWithShowTime,
        showTime: 12000,
        hideTime: 13000
      }
    ]
  };

  assertEquals(
      JSON.stringify(expectedCombinedCards),
      JSON.stringify(combinedCards));
});

/**
 * Mocks global functions and APIs that initialize() depends upon.
 * @param {Test} fixture Test fixture.
 */
function mockInitializeDependencies(fixture) {
  fixture.makeAndRegisterMockGlobals([
    'pollOptedInNoImmediateRecheck',
    'recordEvent',
    'removeAllCards',
    'setBackgroundEnable',
    'startPollingCards',
    'stopPollingCards'
  ]);
  fixture.makeAndRegisterMockApis([
    'authenticationManager.isSignedIn',
    'chrome.storage.local.remove',
    'fillFromChromeLocalStorage',
    'instrumented.metricsPrivate.getVariationParams',
    'instrumented.notifications.getAll',
    'instrumented.notifications.getPermissionLevel',
    'instrumented.webstorePrivate.getBrowserLogin',
    'optInPollAttempts.isRunning',
    'optInPollAttempts.stop',
    'tasks.add',
    'updateCardsAttempts.isRunning',
    'updateCardsAttempts.stop'
  ]);
}

/**
 * Sets up the test to expect the state machine calls and send
 * the specified state machine state. Currently used to test initialize().
 * Note that this CAN NOT be used if any of the methods below are called
 * outside of this context with the same argument matchers.
 * expects() calls cannot be chained with the same argument matchers.
 * @param {object} fixture Test fixture.
 * @param {string} testIdentityToken getAuthToken callback token.
 * @param {object} testExperimentVariationParams Response of
 *     metricsPrivate.getVariationParams.
 * @param {string} testExperimentVariationParams Response of
 *     notifications.getPermissionLevel.
 * @param {boolean} testGoogleNowEnabled True if the user is opted in to Google
 *     Now.
 */
function expectStateMachineCalls(
    fixture,
    testIdentityToken,
    testExperimentVariationParams,
    testNotificationPermissionLevel,
    testGoogleNowEnabled) {
  fixture.mockApis.expects(once()).
      authenticationManager_isSignedIn().
      will(returnValue(new Promise(function(resolve) {
        resolve(!!testIdentityToken);
      })));

  var getVariationParamsSavedArgs = new SaveMockArguments();
  fixture.mockApis.expects(once()).
      instrumented_metricsPrivate_getVariationParams(
          getVariationParamsSavedArgs.match(ANYTHING),
          getVariationParamsSavedArgs.match(ANYTHING)).
      will(invokeCallback(
          getVariationParamsSavedArgs, 1, testExperimentVariationParams));

  var notificationGetPermissionLevelSavedArgs = new SaveMockArguments();
  fixture.mockApis.expects(once()).
      instrumented_notifications_getPermissionLevel(
          notificationGetPermissionLevelSavedArgs.match(ANYTHING)).
      will(invokeCallback(
          notificationGetPermissionLevelSavedArgs,
          0,
          testNotificationPermissionLevel))

  expectChromeLocalStorageGet(
      fixture,
      {googleNowEnabled: false},
      {googleNowEnabled: testGoogleNowEnabled});

  var updateCardsAttemptsIsRunningSavedArgs = new SaveMockArguments();
  fixture.mockApis.expects(once()).
      updateCardsAttempts_isRunning(
          updateCardsAttemptsIsRunningSavedArgs.match(ANYTHING)).
      will(
          invokeCallback(
              updateCardsAttemptsIsRunningSavedArgs, 0, undefined));

  var optInPollAttemptsIsRunningSavedArgs = new SaveMockArguments();
  fixture.mockApis.expects(once()).
      optInPollAttempts_isRunning(
          optInPollAttemptsIsRunningSavedArgs.match(ANYTHING)).
      will(
          invokeCallback(
              optInPollAttemptsIsRunningSavedArgs, 0, undefined));
}

/**
 * Sets up the test to expect the initialization calls that
 * initialize() invokes.
 * Note that this CAN NOT be used if any of the methods below are called
 * outside of this context with the same argument matchers.
 * expects() calls cannot be chained with the same argument matchers.
 */
function expectInitialization(fixture) {
  var tasksAddSavedArgs = new SaveMockArguments();
  fixture.mockApis.expects(once()).
      tasks_add(
          tasksAddSavedArgs.match(ANYTHING),
          tasksAddSavedArgs.match(ANYTHING)).
      will(invokeCallback(tasksAddSavedArgs, 1, function() {}));

  // The ordering here between stubs and expects is important.
  // We only care about the EXTENSION_START event. The other events are covered
  // by the NoCards tests below. Reversing the calls will cause all recordEvent
  // calls to be unexpected.
  fixture.mockGlobals.stubs().recordEvent(ANYTHING);
  fixture.mockGlobals.
      expects(once()).recordEvent(GoogleNowEvent.EXTENSION_START);
}

TEST_F(TEST_NAME,'Initialize_SignedOut', function() {
  // Tests the case when getAuthToken fails most likely because the user is
  // not signed in. In this case, the function should quietly exit after
  // finding out that getAuthToken fails.

  // Setup and expectations.
  var testIdentityToken = undefined;
  var testExperimentVariationParams = {};
  var testNotificationPermissionLevel = 'denied';
  var testGoogleNowEnabled = undefined;

  mockInitializeDependencies(this);

  expectInitialization(this);

  expectStateMachineCalls(
      this,
      testIdentityToken,
      testExperimentVariationParams,
      testNotificationPermissionLevel,
      testGoogleNowEnabled);

  this.mockGlobals.expects(once()).setBackgroundEnable(false);
  this.mockGlobals.expects(never()).startPollingCards();
  this.mockGlobals.expects(once()).stopPollingCards();
  this.mockGlobals.expects(once()).removeAllCards();
  this.mockGlobals.expects(never()).pollOptedInNoImmediateRecheck();
  this.mockApis.expects(once()).optInPollAttempts_stop();

  // Invoking the tested function.
  initialize();
});

TEST_F(TEST_NAME,'Initialize_NotificationDisabled', function() {
  // Tests the case when Google Now is disabled in the notifications center.

  // Setup and expectations.
  var testIdentityToken = 'some identity token';
  var testExperimentVariationParams = {};
  var testNotificationPermissionLevel = 'denied';
  var testGoogleNowEnabled = undefined;

  mockInitializeDependencies(this);

  expectInitialization(this);

  expectStateMachineCalls(
      this,
      testIdentityToken,
      testExperimentVariationParams,
      testNotificationPermissionLevel,
      testGoogleNowEnabled);

  this.mockGlobals.expects(once()).setBackgroundEnable(false);
  this.mockGlobals.expects(never()).startPollingCards();
  this.mockGlobals.expects(once()).stopPollingCards();
  this.mockGlobals.expects(once()).removeAllCards();
  this.mockGlobals.expects(never()).pollOptedInNoImmediateRecheck();
  this.mockApis.expects(once()).optInPollAttempts_stop();

  // Invoking the tested function.
  initialize();
});

TEST_F(TEST_NAME, 'Initialize_NoBackground', function() {
  // Tests when the no background variation is received.

  // Setup and expectations.
  var testIdentityToken = 'some identity token';
  var testExperimentVariationParams = {canEnableBackground: 'false'};
  var testNotificationPermissionLevel = 'granted';
  var testGoogleNowEnabled = true;

  mockInitializeDependencies(this);

  expectInitialization(this);

  expectStateMachineCalls(
      this,
      testIdentityToken,
      testExperimentVariationParams,
      testNotificationPermissionLevel,
      testGoogleNowEnabled);

  this.mockGlobals.expects(once()).setBackgroundEnable(false);
  this.mockGlobals.expects(once()).startPollingCards();
  this.mockGlobals.expects(never()).stopPollingCards();
  this.mockGlobals.expects(never()).removeAllCards();
  this.mockGlobals.expects(never()).pollOptedInNoImmediateRecheck();
  this.mockApis.expects(once()).optInPollAttempts_stop();

  // Invoking the tested function.
  initialize();
});

TEST_F(TEST_NAME, 'Initialize_GoogleNowDisabled', function() {
  // Tests when the user has Google Now disabled.

  // Setup and expectations.
  var testIdentityToken = 'some identity token';
  var testExperimentVariationParams = {};
  var testNotificationPermissionLevel = 'granted';
  var testGoogleNowEnabled = false;

  mockInitializeDependencies(this);

  expectInitialization(this);

  expectStateMachineCalls(
      this,
      testIdentityToken,
      testExperimentVariationParams,
      testNotificationPermissionLevel,
      testGoogleNowEnabled);

  this.mockGlobals.expects(once()).setBackgroundEnable(false);
  this.mockGlobals.expects(never()).startPollingCards();
  this.mockGlobals.expects(once()).stopPollingCards();
  this.mockGlobals.expects(once()).removeAllCards();
  this.mockGlobals.expects(once()).pollOptedInNoImmediateRecheck();
  this.mockApis.expects(never()).optInPollAttempts_stop();

  // Invoking the tested function.
  initialize();
});

TEST_F(TEST_NAME, 'Initialize_RunGoogleNow', function() {
  // Tests if Google Now will invoke startPollingCards when all
  // of the required state is fulfilled.

  // Setup and expectations.
  var testIdentityToken = 'some identity token';
  var testExperimentVariationParams = {};
  var testNotificationPermissionLevel = 'granted';
  var testGoogleNowEnabled = true;

  mockInitializeDependencies(this);

  expectInitialization(this);

  expectStateMachineCalls(
      this,
      testIdentityToken,
      testExperimentVariationParams,
      testNotificationPermissionLevel,
      testGoogleNowEnabled);

  this.mockGlobals.expects(once()).setBackgroundEnable(true);
  this.mockGlobals.expects(once()).startPollingCards();
  this.mockGlobals.expects(never()).stopPollingCards();
  this.mockGlobals.expects(never()).removeAllCards();
  this.mockGlobals.expects(never()).pollOptedInNoImmediateRecheck();
  this.mockApis.expects(once()).optInPollAttempts_stop();

  // Invoking the tested function.
  initialize();
});

/**
 * No Cards Event Recording Tests
 */
TEST_F(TEST_NAME, 'NoCardsSignedOut', function() {
  var signedIn = false;
  var notificationEnabled = false;
  var googleNowEnabled = false;
  this.makeAndRegisterMockGlobals([
      'recordEvent',
      'removeAllCards',
      'setBackgroundEnable',
      'setShouldPollCards',
      'setShouldPollOptInStatus']);

  this.mockGlobals.stubs().removeAllCards();
  this.mockGlobals.stubs().setBackgroundEnable(ANYTHING);
  this.mockGlobals.stubs().setShouldPollCards(ANYTHING);
  this.mockGlobals.stubs().setShouldPollOptInStatus(ANYTHING);

  this.mockGlobals.expects(once()).recordEvent(
      GoogleNowEvent.STOPPED);
  this.mockGlobals.expects(once()).recordEvent(
      GoogleNowEvent.SIGNED_OUT);
  this.mockGlobals.expects(never()).recordEvent(
      GoogleNowEvent.NOTIFICATION_DISABLED);
  this.mockGlobals.expects(never()).recordEvent(
      GoogleNowEvent.GOOGLE_NOW_DISABLED);
  updateRunningState(signedIn, true, notificationEnabled, googleNowEnabled);
});

TEST_F(TEST_NAME, 'NoCardsNotificationsDisabled', function() {
  var signedIn = true;
  var notificationEnabled = false;
  var googleNowEnabled = false;
  this.makeAndRegisterMockGlobals([
      'recordEvent',
      'removeAllCards',
      'setBackgroundEnable',
      'setShouldPollCards',
      'setShouldPollOptInStatus']);

  this.mockGlobals.stubs().removeAllCards();
  this.mockGlobals.stubs().setBackgroundEnable(ANYTHING);
  this.mockGlobals.stubs().setShouldPollCards(ANYTHING);
  this.mockGlobals.stubs().setShouldPollOptInStatus(ANYTHING);

  this.mockGlobals.expects(once()).recordEvent(
      GoogleNowEvent.STOPPED);
  this.mockGlobals.expects(never()).recordEvent(
      GoogleNowEvent.SIGNED_OUT);
  this.mockGlobals.expects(once()).recordEvent(
      GoogleNowEvent.NOTIFICATION_DISABLED);
  this.mockGlobals.expects(never()).recordEvent(
      GoogleNowEvent.GOOGLE_NOW_DISABLED);
  updateRunningState(signedIn, true, notificationEnabled, googleNowEnabled);
});

TEST_F(TEST_NAME, 'NoCardsGoogleNowDisabled', function() {
  var signedIn = true;
  var notificationEnabled = true;
  var googleNowEnabled = false;
  this.makeAndRegisterMockGlobals([
      'recordEvent',
      'removeAllCards',
      'setBackgroundEnable',
      'setShouldPollCards',
      'setShouldPollOptInStatus']);

  this.mockGlobals.stubs().removeAllCards();
  this.mockGlobals.stubs().setBackgroundEnable(ANYTHING);
  this.mockGlobals.stubs().setShouldPollCards(ANYTHING);
  this.mockGlobals.stubs().setShouldPollOptInStatus(ANYTHING);

  this.mockGlobals.expects(never()).recordEvent(
      GoogleNowEvent.STOPPED);
  this.mockGlobals.expects(never()).recordEvent(
      GoogleNowEvent.SIGNED_OUT);
  this.mockGlobals.expects(never()).recordEvent(
      GoogleNowEvent.NOTIFICATION_DISABLED);
  this.mockGlobals.expects(once()).recordEvent(
      GoogleNowEvent.GOOGLE_NOW_DISABLED);
  updateRunningState(signedIn, true, notificationEnabled, googleNowEnabled);
});

TEST_F(TEST_NAME, 'NoCardsEverythingEnabled', function() {
  var signedIn = true;
  var notificationEnabled = true;
  var googleNowEnabled = true;
  this.makeAndRegisterMockGlobals([
      'recordEvent',
      'removeAllCards',
      'setBackgroundEnable',
      'setShouldPollCards',
      'setShouldPollOptInStatus']);

  this.mockGlobals.stubs().removeAllCards();
  this.mockGlobals.stubs().setBackgroundEnable(ANYTHING);
  this.mockGlobals.stubs().setShouldPollCards(ANYTHING);
  this.mockGlobals.stubs().setShouldPollOptInStatus(ANYTHING);

  this.mockGlobals.expects(never()).recordEvent(
      GoogleNowEvent.STOPPED);
  this.mockGlobals.expects(never()).recordEvent(
      GoogleNowEvent.SIGNED_OUT);
  this.mockGlobals.expects(never()).recordEvent(
      GoogleNowEvent.NOTIFICATION_DISABLED);
  this.mockGlobals.expects(never()).recordEvent(
      GoogleNowEvent.GOOGLE_NOW_DISABLED);
  updateRunningState(signedIn, true, notificationEnabled, googleNowEnabled);
});

/**
 * Mocks global functions and APIs that onNotificationClicked() depends upon.
 * @param {Test} fixture Test fixture.
 */
function mockOnNotificationClickedDependencies(fixture) {
  fixture.makeAndRegisterMockApis([
    'chrome.windows.create',
    'chrome.windows.update',
    'fillFromChromeLocalStorage',
    'instrumented.tabs.create']);
}

TEST_F(TEST_NAME, 'OnNotificationClicked_NoData', function() {
  // Tests the case when there is no data associated with notification id.
  // In this case, the function should do nothing.

  // Setup and expectations.
  var testNotificationId = 'TEST_ID';
  var testNotificationDataRequest = {notificationsData: {}};
  var testNotificationData = {notificationsData: {}};

  mockOnNotificationClickedDependencies(this);
  this.makeMockLocalFunctions(['selector']);

  expectChromeLocalStorageGet(
      this, testNotificationDataRequest, testNotificationData);

  // Invoking the tested function.
  onNotificationClicked(
      testNotificationId, this.mockLocalFunctions.functions().selector);
});

TEST_F(TEST_NAME, 'OnNotificationClicked_ActionUrlsUndefined', function() {
  // Tests the case when the data associated with notification id is
  // 'undefined'.
  // In this case, the function should do nothing.

  // Setup and expectations.
  var testActionUrls = undefined;
  var testNotificationId = 'TEST_ID';
  var testNotificationDataRequest = {notificationsData: {}};
  var testNotificationData = {
      notificationsData: {'TEST_ID': {actionUrls: testActionUrls}}
  };

  mockOnNotificationClickedDependencies(this);
  this.makeMockLocalFunctions(['selector']);

  expectChromeLocalStorageGet(
      this, testNotificationDataRequest, testNotificationData);

  this.mockLocalFunctions.expects(once())
      .selector(eqJSON(
          testNotificationData.notificationsData[testNotificationId]))
      .will(returnValue(undefined));

  // Invoking the tested function.
  onNotificationClicked(
      testNotificationId, this.mockLocalFunctions.functions().selector);
});

TEST_F(TEST_NAME, 'OnNotificationClicked_TabCreateSuccess', function() {
  // Tests the selected URL is OK and crome.tabs.create suceeds.

  // Setup and expectations.
  var testActionUrls = {testField: 'TEST VALUE'};
  var testNotificationId = 'TEST_ID';
  var testNotificationDataRequest = {notificationsData: {}};
  var testNotificationData = {
      notificationsData: {'TEST_ID': {actionUrls: testActionUrls}}
  };
  var testActionUrl = 'http://testurl.com';
  var testCreatedTab = {windowId: 239};

  mockOnNotificationClickedDependencies(this);
  this.makeMockLocalFunctions(['selector']);

  expectChromeLocalStorageGet(
      this, testNotificationDataRequest, testNotificationData);
  this.mockLocalFunctions.expects(once())
      .selector(eqJSON(
          testNotificationData.notificationsData[testNotificationId]))
      .will(returnValue(testActionUrl));
  var chromeTabsCreateSavedArgs = new SaveMockArguments();
  this.mockApis.expects(once()).
      instrumented_tabs_create(
          chromeTabsCreateSavedArgs.match(eqJSON({url: testActionUrl})),
          chromeTabsCreateSavedArgs.match(ANYTHING)).
      will(invokeCallback(chromeTabsCreateSavedArgs, 1, testCreatedTab));
  this.mockApis.expects(once()).chrome_windows_update(
      testCreatedTab.windowId,
      eqJSON({focused: true}));

  // Invoking the tested function.
  onNotificationClicked(
      testNotificationId, this.mockLocalFunctions.functions().selector);
});

TEST_F(TEST_NAME, 'OnNotificationClicked_TabCreateFail', function() {
  // Tests the selected URL is OK and crome.tabs.create fails.
  // In this case, the function should invoke chrome.windows.create as a
  // second attempt.

  // Setup and expectations.
  var testActionUrls = {testField: 'TEST VALUE'};
  var testNotificationId = 'TEST_ID';
  var testNotificationDataRequest = {notificationsData: {}};
  var testNotificationData = {
    notificationsData: {'TEST_ID': {actionUrls: testActionUrls}}
  };
  var testActionUrl = 'http://testurl.com';
  var testCreatedTab = undefined; // chrome.tabs.create fails

  mockOnNotificationClickedDependencies(this);
  this.makeMockLocalFunctions(['selector']);

  expectChromeLocalStorageGet(
      this, testNotificationDataRequest, testNotificationData);
  this.mockLocalFunctions.expects(once())
      .selector(eqJSON(
          testNotificationData.notificationsData[testNotificationId]))
      .will(returnValue(testActionUrl));
  var chromeTabsCreateSavedArgs = new SaveMockArguments();
  this.mockApis.expects(once()).
      instrumented_tabs_create(
          chromeTabsCreateSavedArgs.match(eqJSON({url: testActionUrl})),
          chromeTabsCreateSavedArgs.match(ANYTHING)).
      will(invokeCallback(chromeTabsCreateSavedArgs, 1, testCreatedTab));
  this.mockApis.expects(once()).chrome_windows_create(
      eqJSON({url: testActionUrl, focused: true}));

  // Invoking the tested function.
  onNotificationClicked(
      testNotificationId, this.mockLocalFunctions.functions().selector);
});

TEST_F(TEST_NAME, 'ShowNotificationGroups', function() {
  // Tests showNotificationGroups function. Checks that the function properly
  // deletes the card that didn't get an update, updates existing card and
  // creates a new card that previously didn't exist.

  // Setup and expectations.
  var existingNotifications = {
    'SHOULD BE DELETED': 'SOMETHING',
    'SHOULD BE KEPT': 'SOMETHING'
  };

  var keptCard = {
    chromeNotificationId: 'SHOULD BE KEPT',
    trigger: {showTimeSec: 0, hideTimeSec: 0}
  };

  var keptNotification = {
    receivedNotification: keptCard,
    showTime: 0,
    hideTime: 0
  };

  var newCard = {
    chromeNotificationId: 'NEW CARD',
    trigger: {showTimeSec: 0, hideTimeSec: 0}
  };

  var newNotification = {
    receivedNotification: newCard,
    showTime: 0,
    hideTime: 0
  };

  var notificationGroups = {
    'TEST GROUP 1': {cards: [keptCard], cardsTimestamp: 0},
    'TEST GROUP 2': {cards: [newCard], cardsTimestamp: 0}
  };

  var fakeOnCardShownFunction = 'FAKE ON CARD SHOWN FUNCTION';

  var expectedUpdatedNotifications = {
    'SHOULD BE KEPT': 'KEPT CARD NOTIFICATION DATA',
    'NEW CARD': 'NEW CARD NOTIFICATION DATA'
  };

  this.makeAndRegisterMockApis([
    'cardSet.update',
    'chrome.storage.local.set',
    'instrumented.notifications.getAll'
  ]);
  this.makeMockLocalFunctions([
    'onSuccess'
  ]);

  var notificationsGetAllSavedArgs = new SaveMockArguments();
  this.mockApis.expects(once()).
      instrumented_notifications_getAll(
          notificationsGetAllSavedArgs.match(ANYTHING)).
      will(invokeCallback(
          notificationsGetAllSavedArgs, 0, existingNotifications));

  this.mockApis.expects(once()).
      cardSet_update(
          'SHOULD BE KEPT',
          eqJSON([keptNotification]),
          eqJSON(notificationGroups),
          fakeOnCardShownFunction).
      will(returnValue('KEPT CARD NOTIFICATION DATA'));
  this.mockApis.expects(once()).
      cardSet_update(
          'NEW CARD',
          eqJSON([newNotification]),
          eqJSON(notificationGroups),
          fakeOnCardShownFunction).
      will(returnValue('NEW CARD NOTIFICATION DATA'));
  this.mockApis.expects(once()).
      cardSet_update(
          'SHOULD BE DELETED',
          [],
          eqJSON(notificationGroups),
          fakeOnCardShownFunction).
      will(returnValue(undefined));

  this.mockApis.expects(once()).
      chrome_storage_local_set(
          eqJSON({notificationsData: expectedUpdatedNotifications}));

  this.mockLocalFunctions.expects(once()).
      onSuccess(undefined);

  // Invoking the tested function.
  showNotificationGroups(notificationGroups, fakeOnCardShownFunction)
      .then(this.mockLocalFunctions.functions().onSuccess);
});

TEST_F(TEST_NAME, 'ProcessServerResponse', function() {
  // Tests processServerResponse function.

  // Setup and expectations.
  Date.now = function() { return 3000000; };

  // GROUP1 was requested and contains cards c4 and c5. For c5, there is a
  // non-expired dismissal, so it will be ignored.
  // GROUP2 was not requested, but is contained in server response to
  // indicate that the group still exists. Stored group GROUP2 won't change.
  // GROUP3 is stored, but is not present in server's response, which means
  // it doesn't exist anymore. This group will be deleted.
  // GROUP4 doesn't contain cards, but it was requested. This is treated as
  // if it had an empty array of cards. Cards in the stored group will be
  // replaced with an empty array.
  // GROUP5 doesn't have next poll time, and it will be stored without next
  // poll time.
  var serverResponse = {
    groups: {
      GROUP1: {requested: true, nextPollSeconds: 46},
      GROUP2: {requested: false},
      GROUP4: {requested: true, nextPollSeconds: 45},
      GROUP5: {requested: true}
    },
    notifications: [
      {notificationId: 'c4', groupName: 'GROUP1'},
      {notificationId: 'c5', groupName: 'GROUP1'}
    ]
  };

  var recentDismissals = {
    c4: 1800000, // expired dismissal
    c5: 1800001  // non-expired dismissal
  };

  var storedGroups = {
    GROUP2: {
      cards: [{notificationId: 'c2'}],
      cardsTimestamp: 239,
      nextPollTime: 10000
    },
    GROUP3: {
      cards: [{notificationId: 'c3'}],
      cardsTimestamp: 240,
      nextPollTime: 10001
    },
    GROUP4: {
      cards: [{notificationId: 'c6'}],
      cardsTimestamp: 241,
      nextPollTime: 10002
    }
  };

  var expectedUpdatedGroups = {
    GROUP1: {
      cards: [{notificationId: 'c4', groupName: 'GROUP1'}],
      cardsTimestamp: 3000000,
      nextPollTime: 3046000
    },
    GROUP2: {
      cards: [{notificationId: 'c2'}],
      cardsTimestamp: 239,
      nextPollTime: 10000
    },
    GROUP4: {
      cards: [],
      cardsTimestamp: 3000000,
      nextPollTime: 3045000
    },
    GROUP5: {
      cards: [],
      cardsTimestamp: 3000000
    }
  };

  var expectedUpdatedRecentDismissals = {
    c5: 1800001
  };

  this.makeAndRegisterMockGlobals([
    'scheduleNextCardsPoll'
  ]);

  this.makeAndRegisterMockApis([
    'fillFromChromeLocalStorage',
  ]);

  expectChromeLocalStorageGet(
      this,
      {
        notificationGroups: {},
        recentDismissals: {}
      },
      {
        notificationGroups: storedGroups,
        recentDismissals: recentDismissals
      });

  this.mockGlobals.expects(once())
      .scheduleNextCardsPoll(eqJSON(expectedUpdatedGroups));

  // Invoking the tested function.
  processServerResponse(serverResponse);
});

TEST_F(TEST_NAME, 'ProcessServerResponseGoogleNowDisabled', function() {
  // Tests processServerResponse function for the case when the response
  // indicates that Google Now is disabled.

  // Setup and expectations.
  var serverResponse = {
    googleNowDisabled: true,
    groups: {}
  };

  this.makeAndRegisterMockGlobals([
    'scheduleNextCardsPoll'
  ]);

  this.makeAndRegisterMockApis([
    'chrome.storage.local.set',
    'fillFromChromeLocalStorage'
  ]);

  this.mockApis.expects(once()).
      chrome_storage_local_set(eqJSON({googleNowEnabled: false}));

  this.mockGlobals.expects(never()).scheduleNextCardsPoll();

  // Invoking the tested function.
  processServerResponse(serverResponse);
});