Enable preinstallation android packages

src/tests/__init__.py

@@ -0,0 +1,49 @@
+"""Unit test to test app."""
+import os
+from unittest import TestCase
+
+import mock
+
+from src import app
+
+
+class TestApp(TestCase):
+    """Unit test class to test other methods in the app."""
+
+    def test_valid_env(self):
+        key = 'ENV_1'
+        os.environ[key] = 'test'
+        app.get_or_raise(key)
+        del os.environ[key]
+
+    def test_invalid_env(self):
+        with self.assertRaises(RuntimeError):
+            app.get_or_raise('ENV_2')
+
+    def test_valid_bool(self):
+        self.assertEqual(app.str_to_bool('True'), True)
+        self.assertEqual(app.str_to_bool('t'), True)
+        self.assertEqual(app.str_to_bool('1'), True)
+        self.assertEqual(app.str_to_bool('YES'), True)
+
+    def test_invalid_bool(self):
+        self.assertEqual(app.str_to_bool(''), False)
+        self.assertEqual(app.str_to_bool('test'), False)
+
+    def test_invalid_format(self):
+        self.assertEqual(app.str_to_bool(True), None)
+
+    @mock.patch('src.app.prepare_avd')
+    def test_run_with_appium(self, mocked_avd):
+        with mock.patch('src.app.appium_run') as mocked_appium:
+            app.run()
+            self.assertTrue(mocked_avd.called)
+            self.assertTrue(mocked_appium.called)
+
+    @mock.patch('src.app.prepare_avd')
+    def test_run_withhout_appium(self, mocked_avd):
+        with mock.patch('src.app.appium_run') as mocked_appium:
+            os.environ['APPIUM'] = str(False)
+            app.run()
+            self.assertTrue(mocked_avd.called)
+            self.assertFalse(mocked_appium.called)