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src/django_deploy/tests/test_program.py

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+import importlib
+import os
+import sys
+import unittest
+import pytest
+
+from ..config import DJANGO_SETTINGS_MODULE_NAME
+from ..program import Program
+
+
+class MainTestCase(unittest.TestCase):
+    @pytest.fixture(autouse=True)
+    def tmpdir(self, tmpdir):  # pylint: disable=method-hidden
+        self.tmpdir = tmpdir
+
+    def setUp(self):
+        self._program = Program()
+
+    def test_create(self):
+        tmpdir = self.tmpdir
+        project_dir = os.path.join(str(tmpdir), 'env', 'django')
+
+        exitval = self._program(argv=['-c', project_dir])
+
+        self.assertEqual(os.EX_OK, exitval, 'program() does not return os.EX_OK')
+        self.assertTrue(os.path.isdir(project_dir), 'project directory was not created')
+        settings_dir = os.path.join(project_dir, DJANGO_SETTINGS_MODULE_NAME)
+        self.assertTrue(os.path.isdir(settings_dir), 'settings directory was not created')
+        settings_file = os.path.join(settings_dir, 'settings.py')
+        self.assertTrue(os.path.isfile(settings_file), 'settings.py was not created')
+        manage_script = os.path.join(project_dir, 'manage.py')
+        self.assertTrue(os.path.isfile(manage_script), 'manage.py was not created')
+
+    def test_create_dont_overwrite(self):
+        tmpdir = self.tmpdir
+        project_dir = os.path.join(str(tmpdir), 'env', 'django')
+
+        self._program(argv=['--create', project_dir])
+        exitval = self._program(argv=['--create', project_dir])
+
+        self.assertEqual(os.EX_NOPERM, exitval, 'second call to program() does not exit with os.EX_NOPERM')
+
+    def test_merge_installed_apps(self):
+        tmpdir = self.tmpdir
+        project_dir = os.path.join(str(tmpdir), 'env', 'django')
+
+        expected_installed_apps = [
+            'django.contrib.admin',
+            'django.contrib.auth',
+            'django.contrib.contenttypes',
+            'django.contrib.sessions',
+            'django.contrib.messages',
+            'django.contrib.staticfiles',
+            'fake_app1',
+            'fake_app2',
+        ]
+
+        argv = ['-c', project_dir]
+        self._program(argv=argv)
+
+        argv = ['-a', 'django_deploy', '-a', 'django_deploy.tests', project_dir]
+        self._program(argv=argv)
+
+        settings_dir = os.path.join(project_dir, DJANGO_SETTINGS_MODULE_NAME)
+        sys.path.insert(0, settings_dir)
+        settings = importlib.import_module('settings')
+        importlib.reload(settings)
+        sys.path.pop(0)
+        self.assertListEqual(expected_installed_apps, settings.INSTALLED_APPS)