1 files changed, 103 insertions, 0 deletions
diff --git a/third_party/libwebrtc/build/fuchsia/device_target_test.py b/third_party/libwebrtc/build/fuchsia/device_target_test.py
new file mode 100755
index 0000000000..52ead22495
--- /dev/null
+++ b/third_party/libwebrtc/build/fuchsia/device_target_test.py
@@ -0,0 +1,103 @@
+#!/usr/bin/env vpython3
+# Copyright 2021 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.
+"""Tests scenarios with number of devices and invalid devices"""
+import subprocess
+import unittest
+import unittest.mock as mock
+from argparse import Namespace
+from device_target import DeviceTarget
+from target import Target
+
+
+class TestDiscoverDeviceTarget(unittest.TestCase):
+  def setUp(self):
+    self.args = Namespace(out_dir='out/fuchsia',
+                          target_cpu='x64',
+                          host=None,
+                          node_name=None,
+                          port=None,
+                          ssh_config=None,
+                          fuchsia_out_dir=None,
+                          os_check='update',
+                          system_log_file=None)
+
+  def testNoNodeNameOneDeviceReturnNoneCheckNameAndAddress(self):
+    with (DeviceTarget.CreateFromArgs(self.args)) as device_target_instance:
+      with mock.patch.object(DeviceTarget, 'RunFFXCommand') as mock_ffx:
+        mock_spec_popen = mock.create_autospec(subprocess.Popen, instance=True)
+        mock_spec_popen.communicate.return_value = ('address device_name', '')
+        mock_spec_popen.returncode = 0
+        mock_ffx.return_value = mock_spec_popen
+        with mock.patch.object(Target,
+                               '_WaitUntilReady') as mock_waituntilready:
+          mock_waituntilready.return_value = True
+          self.assertIsNone(device_target_instance.Start())
+          self.assertEqual(device_target_instance._node_name, 'device_name')
+          self.assertEqual(device_target_instance._host, 'address')
+
+  def testNoNodeNameTwoDevicesRaiseExceptionAmbiguousTarget(self):
+    with (DeviceTarget.CreateFromArgs(self.args)) as device_target_instance:
+      with mock.patch.object(DeviceTarget, 'RunFFXCommand') as mock_ffx:
+        mock_spec_popen = mock.create_autospec(subprocess.Popen, instance=True)
+        mock_spec_popen.communicate.return_value = ('address1 device_name1\n'
+                                                    'address2 device_name2', '')
+        mock_spec_popen.returncode = 0
+        mock_spec_popen.stdout = ''
+        mock_ffx.return_value = mock_spec_popen
+        with self.assertRaisesRegex(Exception,
+                                    'Ambiguous target device specification.'):
+          device_target_instance.Start()
+          self.assertIsNone(device_target_instance._node_name)
+          self.assertIsNone(device_target_instance._host)
+
+  def testNoNodeNameDeviceDoesntHaveNameRaiseExceptionCouldNotFind(self):
+    with (DeviceTarget.CreateFromArgs(self.args)) as device_target_instance:
+      with mock.patch.object(DeviceTarget, 'RunFFXCommand') as mock_ffx:
+        mock_spec_popen = mock.create_autospec(subprocess.Popen, instance=True)
+        mock_spec_popen.communicate.return_value = ('address', '')
+        mock_spec_popen.returncode = 0
+        mock_ffx.return_value = mock_spec_popen
+        with self.assertRaisesRegex(Exception, 'Could not find device'):
+          device_target_instance.Start()
+          self.assertIsNone(device_target_instance._node_name)
+          self.assertIsNone(device_target_instance._host)
+
+  def testNodeNameDefinedDeviceFoundReturnNoneCheckNameAndHost(self):
+    self.args.node_name = 'device_name'
+    with (DeviceTarget.CreateFromArgs(self.args)) as device_target_instance:
+      with mock.patch('subprocess.Popen') as mock_popen:
+        mock_popen.returncode = ('address', 'device_name')
+        with mock.patch.object(Target,
+                               '_WaitUntilReady') as mock_waituntilready:
+          mock_waituntilready.return_value = True
+          self.assertIsNone(device_target_instance.Start())
+          self.assertEqual(device_target_instance._node_name, 'device_name')
+          self.assertEqual(device_target_instance._host, 'address')
+
+  def testNodeNameDefinedDeviceNotFoundRaiseExceptionCouldNotFind(self):
+    self.args.node_name = 'wrong_device_name'
+    with (DeviceTarget.CreateFromArgs(self.args)) as device_target_instance:
+      with mock.patch('subprocess.Popen') as mock_popen:
+        mock_popen.returncode = ('', '')
+        with self.assertRaisesRegex(Exception, 'Could not find device'):
+          device_target_instance.Start()
+          self.assertIsNone(device_target_instance._node_name)
+          self.assertIsNone(device_target_instance._host)
+
+  def testNoDevicesFoundRaiseExceptionCouldNotFind(self):
+    with (DeviceTarget.CreateFromArgs(self.args)) as device_target_instance:
+      with mock.patch.object(DeviceTarget, 'RunFFXCommand') as mock_ffx:
+        mock_spec_popen = mock.create_autospec(subprocess.Popen, instance=True)
+        mock_spec_popen.communicate.return_value = ('', '')
+        mock_spec_popen.returncode = 0
+        mock_ffx.return_value = mock_spec_popen
+        with self.assertRaisesRegex(Exception, 'Could not find device'):
+          device_target_instance.Start()
+          self.assertIsNone(device_target_instance._node_name)
+          self.assertIsNone(device_target_instance._host)
+
+
+if __name__ == '__main__':
+  unittest.main()