bluetooth: Basic browser tests for chrome://bluetooth-internals.

chrome/test/data/webui/bluetooth_internals_browsertest.js

Index: chrome/test/data/webui/bluetooth_internals_browsertest.js
diff --git a/chrome/test/data/webui/bluetooth_internals_browsertest.js b/chrome/test/data/webui/bluetooth_internals_browsertest.js
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+++ b/chrome/test/data/webui/bluetooth_internals_browsertest.js
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+// Copyright 2016 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.
+
+/**
+ * @fileoverview Tests for chrome://bluetooth-internals
+ */
+
+/** @const {string} Path to source root. */
+var ROOT_PATH = '../../../../';
+
+/**
+ * Test fixture for BluetoothInternals WebUI testing.
+ * @constructor
+ * @extends testing.Test
+ */
+function BluetoothInternalsTest() {
+  this.adapterFactory = null;
+  this.setupResolver = new PromiseResolver();
+}
+
+BluetoothInternalsTest.prototype = {
+  __proto__: testing.Test.prototype,
+
+  /** @override */
+  browsePreload: 'chrome://bluetooth-internals',
+
+  /** @override */
+  isAsync: true,
+
+  /** @override */
+  runAccessibilityChecks: false,
+
+  /** @override */
+  extraLibraries: [
+    ROOT_PATH + 'third_party/mocha/mocha.js',
+    ROOT_PATH + 'chrome/test/data/webui/mocha_adapter.js',
+    ROOT_PATH + 'ui/webui/resources/js/promise_resolver.js',
+    ROOT_PATH + 'ui/webui/resources/js/cr.js',
+    ROOT_PATH + 'ui/webui/resources/js/util.js',
+    ROOT_PATH + 'chrome/test/data/webui/settings/test_browser_proxy.js',
+  ],
+
+  preLoad: function() {
+    // A function that is called from chrome://bluetooth-internals to allow this
+    // test to replace the real Mojo browser proxy with a fake one, before any
+    // other code runs.
+    window.setupFn = function() {
+      return importModules([
+        'content/public/renderer/frame_interfaces',
+        'device/bluetooth/public/interfaces/adapter.mojom',
+        'device/bluetooth/public/interfaces/device.mojom',
+        'mojo/public/js/bindings',
+        'mojo/public/js/connection',
+      ]).then(function([frameInterfaces, adapter, device, bindings,
+          connection]) {
+        /**
+          * A test adapter factory proxy for the chrome://bluetooth-internals
+          * page.
+          *
+          * @constructor
+          * @extends {TestBrowserProxyBase}
+          */
+        var TestAdapterFactoryProxy = function() {
+          settings.TestBrowserProxy.call(this, [
+            'getAdapter',
+          ]);
+
+          this.adapter = new TestAdapter();
+          this.adapterHandle_ = connection.bindStubDerivedImpl(this.adapter);
+        };
+
+        TestAdapterFactoryProxy.prototype = {
+          __proto__: settings.TestBrowserProxy.prototype,
+          getAdapter: function() {
+            this.methodCalled('getAdapter');
+
+            // Create message pipe bound to TestAdapter.
+            return Promise.resolve({
+              adapter: this.adapterHandle_,
+            });
+          }
+        };
+
+        /**
+          * A test adapter for the chrome://bluetooth-internals page.
+          * Must be used to create message pipe handle from test code.
+          *
+          * @constructor
+          * @extends {adapter.Adapter.stubClass}
+          */
+        var TestAdapter = function() {
+          this.proxy = new TestAdapterProxy();
+        };
+
+        TestAdapter.prototype = {
+          __proto__: adapter.Adapter.stubClass.prototype,
+          getInfo: function() { return this.proxy.getInfo(); },
+          getDevices: function() { return this.proxy.getDevices(); },
+          setClient: function(client) { return this.proxy.setClient(client); }
+        };
+
+        /**
+          * A test adapter proxy for the chrome://bluetooth-internals page.
+          *
+          * @constructor
+          * @extends {TestBrowserProxyBase}
+          */
+        var TestAdapterProxy = function() {
+          settings.TestBrowserProxy.call(this, [
+            'getInfo',
+            'getDevices',
+            'setClient',
+          ]);
+
+          this.adapterInfo_ = null;
+          this.devices_ = [];
+        };
+
+        TestAdapterProxy.prototype = {
+          __proto__: settings.TestBrowserProxy.prototype,
+
+          getInfo: function() {
+            this.methodCalled('getInfo');
+            return Promise.resolve({info: this.adapterInfo_});
+          },
+
+          getDevices: function() {
+            this.methodCalled('getDevices');
+            return Promise.resolve({devices: this.devices_});
+          },
+
+          setClient: function(client) {
+            this.methodCalled('setClient', client);
+          },
+
+          setTestAdapter: function(adapterInfo) {
+            this.adapterInfo_ = adapterInfo;
+          },
+
+          setTestDevices: function(devices) {
+            this.devices_ = devices;
+          }
+        };
+
+        frameInterfaces.addInterfaceOverrideForTesting(
+          adapter.AdapterFactory.name,
+          function(handle) {
+            var stub = connection.bindHandleToStub(
+                handle, adapter.AdapterFactory);
+            this.adapterFactory = new TestAdapterFactoryProxy();
+            bindings.StubBindings(stub).delegate = this.adapterFactory;
+
+            this.setupResolver.resolve();
+          }.bind(this));
+      }.bind(this));
+    }.bind(this);
+  },
+};
+
+TEST_F('BluetoothInternalsTest', 'Startup_BluetoothInternals', function() {
+  var fakeAdapterInfo = {
+    address: '02:1C:7E:6A:11:5A',
+    discoverable: false,
+    discovering: false,
+    initialized: true,
+    name: 'computer.example.com-0',
+    powered: true,
+    present: true,
+  };
+
+  var fakeDeviceInfo1 = {
+    address: "AA:AA:84:96:92:84",
+    name: "AAA",
+    name_for_display: "AAA",
+    rssi: {value: -40},
+    services: []
+  };
+
+  var fakeDeviceInfo2 = {
+    address: "BB:BB:84:96:92:84",
+    name: "BBB",
+    name_for_display: "BBB",
+    rssi: null,
+    services: []
+  };
+
+  var fakeDeviceInfo3 = {
+    address: "CC:CC:84:96:92:84",
+    name: "CCC",
+    name_for_display: "CCC",
+  };
+
+  var adapterFactory = null;
+
+  // Before tests are run, make sure setup completes.
+  var setupPromise = this.setupResolver.promise.then(function() {
+    adapterFactory = this.adapterFactory;
+  }.bind(this));
+
+
+  suite('BluetoothInternalsUITest', function() {
+    var EXPECTED_DEVICES = 2;
+
+    suiteSetup(function() {
+      return setupPromise.then(function() {
+        adapterFactory.adapter.proxy.setTestDevices([
+          fakeDeviceInfo1,
+          fakeDeviceInfo2
+        ]);
+        adapterFactory.adapter.proxy.setTestAdapter(fakeAdapterInfo);
+
+        return Promise.all([
+          adapterFactory.whenCalled('getAdapter'),
+          adapterFactory.adapter.proxy.whenCalled('getInfo'),
+          adapterFactory.adapter.proxy.whenCalled('getDevices'),
+          adapterFactory.adapter.proxy.whenCalled('setClient'),
+        ]);
+      });
+    });
+
+    setup(function() {
+      devices.splice(0, devices.length);
+      adapterBroker.adapterClient_.deviceAdded(fakeDeviceInfo1);
+      adapterBroker.adapterClient_.deviceAdded(fakeDeviceInfo2);
+    });
+
+    teardown(function() {
+      adapterFactory.reset();
+    });
+
+    /**
+     * Updates device info and verifies the contents of the device table.
+     * @param {!device_collection.DeviceInfo} deviceInfo
+     */
+    function changeDevice(deviceInfo) {
+      var deviceRow = document.querySelector('#' + escapeDeviceAddress(
+          deviceInfo.address));
+      var nameForDisplayColumn = deviceRow.children[0];
+      var addressColumn = deviceRow.children[1];
+      var rssiColumn = deviceRow.children[2];
+      var servicesColumn = deviceRow.children[3];
+
+      expectTrue(!!nameForDisplayColumn);
+      expectTrue(!!addressColumn);
+      expectTrue(!!rssiColumn);
+      expectTrue(!!servicesColumn);
+
+      adapterBroker.adapterClient_.deviceChanged(deviceInfo);
+
+      expectEquals(deviceInfo.name_for_display,
+                   nameForDisplayColumn.textContent);
+      expectEquals(deviceInfo.address, addressColumn.textContent);
+
+      if (deviceInfo.rssi) {
+        expectEquals(String(deviceInfo.rssi.value), rssiColumn.textContent);
+      }
+
+      if (deviceInfo.services) {
+        expectEquals(String(deviceInfo.services.length),
+                     servicesColumn.textContent);
+      } else {
+        expectEquals('Unknown', servicesColumn.textContent);
+      }
+    }
+
+    /**
+     * Escapes colons in a device address for CSS formatting.
+     * @param {string} address
+     */
+    function escapeDeviceAddress(address) {
+      return address.replace(/:/g, '\\:');
+    }
+
+    /**
+     * Expects whether device with |address| is removed.
+     * @param {string} address
+     * @param {boolean} expectRemoved
+     */
+    function expectDeviceRemoved(address, expectRemoved) {
+      var removedRow = document.querySelector(
+          '#' + escapeDeviceAddress(address));
+
+      expectEquals(expectRemoved, removedRow.classList.contains('removed'));
+    }
+
+    /**
+     * Tests whether a device is added successfully and not duplicated.
+     */
+    test('DeviceAdded', function() {
+      var devices = document.querySelectorAll('#device-table tbody tr');
+      expectEquals(EXPECTED_DEVICES, devices.length);
+
+      // Copy device info because device collection will not copy this object.
+      var infoCopy = Object.assign({}, fakeDeviceInfo3);
+      adapterBroker.adapterClient_.deviceAdded(infoCopy);
+
+      // Same device shouldn't appear twice.
+      adapterBroker.adapterClient_.deviceAdded(infoCopy);
+
+      devices = document.querySelectorAll('#device-table tbody tr');
+      expectEquals(EXPECTED_DEVICES + 1, devices.length);
+    });
+
+    /**
+     * Tests whether a device is marked properly as removed.
+     */
+    test('DeviceSetToRemoved', function() {
+      var devices = document.querySelectorAll('#device-table tbody tr');
+      expectEquals(EXPECTED_DEVICES, devices.length);
+      adapterBroker.adapterClient_.deviceRemoved(fakeDeviceInfo2);
+
+      // The number of rows shouldn't change.
+      devices = document.querySelectorAll('#device-table tbody tr');
+      expectEquals(EXPECTED_DEVICES, devices.length);
+
+      expectDeviceRemoved(fakeDeviceInfo2.address, true);
+    });
+
+    /**
+     * Tests whether a changed device updates the device table properly.
+     */
+    test('DeviceChanged', function() {
+      var devices = document.querySelectorAll('#device-table tbody tr');
+      expectEquals(EXPECTED_DEVICES, devices.length);
+
+      // Copy device info because device collection will not copy this object.
+      var newDeviceInfo = Object.assign({}, fakeDeviceInfo1);
+      newDeviceInfo.name_for_display = 'DDDD';
+      newDeviceInfo.rssi = { value: -20 };
+      newDeviceInfo.services = ['service1', 'service2', 'service3'];
+
+      changeDevice(newDeviceInfo);
+    });
+
+    /**
+     * Tests the entire device cycle, added -> updated -> removed -> re-added.
+     */
+    test('DeviceUpdateCycle', function() {
+      var devices = document.querySelectorAll('#device-table tbody tr');
+      expectEquals(EXPECTED_DEVICES, devices.length);
+
+      // Copy device info because device collection will not copy this object.
+      var originalDeviceInfo = Object.assign({}, fakeDeviceInfo3);
+      adapterBroker.adapterClient_.deviceAdded(originalDeviceInfo);
+
+      var newDeviceInfo = Object.assign({}, fakeDeviceInfo3);
+      newDeviceInfo.name_for_display = 'DDDD';
+      newDeviceInfo.rssi = { value: -20 };
+      newDeviceInfo.services = ['service1', 'service2', 'service3'];
+
+      changeDevice(newDeviceInfo);
+      changeDevice(originalDeviceInfo);
+
+      adapterBroker.adapterClient_.deviceRemoved(originalDeviceInfo);
+      expectDeviceRemoved(originalDeviceInfo.address, true);
+
+      adapterBroker.adapterClient_.deviceAdded(originalDeviceInfo);
+      expectDeviceRemoved(originalDeviceInfo.address, false);
+    });
+
+    test('DeviceAddedRssiCheck', function() {
+      var devices = document.querySelectorAll('#device-table tbody tr');
+      expectEquals(EXPECTED_DEVICES, devices.length);
+
+      // Copy device info because device collection will not copy this object.
+      var newDeviceInfo = Object.assign({}, fakeDeviceInfo3);
+      adapterBroker.adapterClient_.deviceAdded(newDeviceInfo);
+
+      var deviceRow = document.querySelector('#' + escapeDeviceAddress(
+          newDeviceInfo.address));
+      var rssiColumn = deviceRow.children[2];
+      expectEquals('Unknown', rssiColumn.textContent);
+
+      var newDeviceInfo1 = Object.assign({}, fakeDeviceInfo3);
+      newDeviceInfo1.rssi = {value: -42};
+      adapterBroker.adapterClient_.deviceChanged(newDeviceInfo1);
+      expectEquals('-42', rssiColumn.textContent);
+
+      // Device table should keep last valid rssi value.
+      var newDeviceInfo2 = Object.assign({}, fakeDeviceInfo3);
+      newDeviceInfo2.rssi = null;
+      adapterBroker.adapterClient_.deviceChanged(newDeviceInfo2);
+      expectEquals('-42', rssiColumn.textContent);
+
+      var newDeviceInfo3 = Object.assign({}, fakeDeviceInfo3);
+      newDeviceInfo3.rssi = {value: -17};
+      adapterBroker.adapterClient_.deviceChanged(newDeviceInfo3);
+      expectEquals('-17', rssiColumn.textContent);
+    });
+  });
+
+  // Run all registered tests.
+  mocha.run();
+});