Basic android app implementation

tools/telemetry/telemetry/core/backends/chrome/android_browser_finder_unittest.py

Index: tools/telemetry/telemetry/core/backends/chrome/android_browser_finder_unittest.py
diff --git a/tools/telemetry/telemetry/core/backends/chrome/android_browser_finder_unittest.py b/tools/telemetry/telemetry/core/backends/chrome/android_browser_finder_unittest.py
index 39d71201a0aaa0902e9739ccbc39372de4186b81..98b84da2124815dab7a037d0ea5a18dd61728f50 100644
--- a/tools/telemetry/telemetry/core/backends/chrome/android_browser_finder_unittest.py
+++ b/tools/telemetry/telemetry/core/backends/chrome/android_browser_finder_unittest.py
@@ -4,92 +4,38 @@
 
 import unittest
 
-from telemetry import benchmark
 from telemetry.core import browser_options
-from telemetry.core.platform import android_device
-from telemetry.core.platform import android_platform_backend
 from telemetry.core.backends.chrome import android_browser_finder
-from telemetry.unittest_util import system_stub
+
+
+class FakeAndroidPlatform():
+  def __init__(self, can_launch):
+    self._platform_backend = None
+    self._unittest_can_launch = can_launch
+
+  def CanLaunchApplication(self, _):
+    return self._unittest_can_launch
 
 
 class AndroidBrowserFinderTest(unittest.TestCase):
   def setUp(self):
-    self._stubs = system_stub.Override(android_browser_finder,
-                                       ['adb_commands', 'os', 'subprocess',
-                                        'logging'])
-    self._android_device_stub = system_stub.Override(
-        android_device, ['adb_commands'])
-    self._apb_stub = system_stub.Override(
-        android_platform_backend, ['adb_commands'])
-    self._actual_ps_util = android_browser_finder.psutil
-    android_browser_finder.psutil = None
-
-  def tearDown(self):
-    self._stubs.Restore()
-    self._android_device_stub.Restore()
-    self._apb_stub.Restore()
-    android_browser_finder.psutil = self._actual_ps_util
-
-  def test_no_adb(self):
-    finder_options = browser_options.BrowserFinderOptions()
-
-    def NoAdb(*args, **kargs):  # pylint: disable=W0613
-      raise OSError('not found')
-    self._stubs.subprocess.Popen = NoAdb
-    browsers = android_browser_finder.FindAllAvailableBrowsers(finder_options)
-    self.assertEquals(0, len(browsers))
-
-  def test_adb_no_devices(self):
-    finder_options = browser_options.BrowserFinderOptions()
-
-    browsers = android_browser_finder.FindAllAvailableBrowsers(finder_options)
-    self.assertEquals(0, len(browsers))
-
-  def test_adb_permissions_error(self):
-    finder_options = browser_options.BrowserFinderOptions()
-
-    self._stubs.subprocess.Popen.communicate_result = (
-        """List of devices attached
-????????????\tno permissions""",
-        """* daemon not running. starting it now on port 5037 *
-* daemon started successfully *
-""")
-    browsers = android_browser_finder.FindAllAvailableBrowsers(finder_options)
-    self.assertEquals(3, len(self._stubs.logging.warnings))
-    self.assertEquals(0, len(browsers))
-
-  def test_adb_two_devices(self):
-    finder_options = browser_options.BrowserFinderOptions()
-
-    self._android_device_stub.adb_commands.attached_devices = [
-        '015d14fec128220c', '015d14fec128220d']
-
-    browsers = android_browser_finder.FindAllAvailableBrowsers(finder_options)
-    self.assertEquals(1, len(self._stubs.logging.warnings))
-    self.assertEquals(0, len(browsers))
-
-  @benchmark.Disabled('chromeos')
-  def test_adb_one_device(self):
-    finder_options = browser_options.BrowserFinderOptions()
-
-    self._android_device_stub.adb_commands.attached_devices = (
-        ['015d14fec128220c'])
-
-    def OnPM(args):
-      assert args[0] == 'pm'
-      assert args[1] == 'list'
-      assert args[2] == 'packages'
-      return ['package:org.chromium.content_shell_apk',
-              'package.com.google.android.setupwizard']
-
-    def OnLs(_):
-      return ['/sys/devices/system/cpu/cpu0']
-
-    self._apb_stub.adb_commands.adb_device.shell_command_handlers['pm'] = OnPM
-    self._apb_stub.adb_commands.adb_device.shell_command_handlers['ls'] = OnLs
-
-    browsers = android_browser_finder.FindAllAvailableBrowsers(finder_options)
-    self.assertEquals(1, len(browsers))
+    self.finder_options = browser_options.BrowserFinderOptions()
+
+  def testNoPlatformReturnsEmptyList(self):
+    fake_platform = None
+    possible_browsers = android_browser_finder._FindAllPossibleBrowsers(
+        self.finder_options, fake_platform)
+    self.assertEqual([], possible_browsers)
+
+  def testCanLaunchAlwaysTrueReturnsAll(self):
+    fake_platform = FakeAndroidPlatform(can_launch=True)
+    expected_types = set(
+        android_browser_finder.FindAllBrowserTypes(self.finder_options))
+    possible_browsers = android_browser_finder._FindAllPossibleBrowsers(
+        self.finder_options, fake_platform)
+    self.assertEqual(
+        expected_types,
+        set([b.browser_type for b in possible_browsers]))
 
 
 class FakePossibleBrowser(object):
@@ -119,4 +65,3 @@ class SelectDefaultBrowserTest(unittest.TestCase):
     self.assertIs(
       possible_browsers[1],
       android_browser_finder.SelectDefaultBrowser(possible_browsers))
-