Add test for single compose file

Author: Secretions

tests/pytest_docker_compose_tests/test_single_compose_file.py

@@ -0,0 +1,44 @@
+import time
+import requests
+from urllib.parse import urljoin
+from urllib3.util.retry import Retry
+from requests.adapters import HTTPAdapter
+
+import pytest
+
+pytest_plugins = ["docker_compose"]
+
+
+@pytest.fixture(scope="module")
+def wait_for_api(module_scoped_container_getter):
+    """Wait for the api from my_api_service to become responsive"""
+    request_session = requests.Session()
+    retries = Retry(total=5,
+                    backoff_factor=0.1,
+                    status_forcelist=[500, 502, 503, 504])
+    request_session.mount('http://', HTTPAdapter(max_retries=retries))
+
+    service = module_scoped_container_getter.get("my_api_service").network_info[0]
+    api_url = "http://%s:%s/" % (service.hostname, service.host_port)
+    assert request_session.get(api_url)
+
+    start = time.time()
+    while 'Exit' not in module_scoped_container_getter.get("my_short_lived_service").human_readable_state:
+        if time.time() - start >= 5:
+            raise RuntimeError(
+                'my_short_lived_service should spin up, echo "Echoing" and '
+                'then shut down, since it still running something went wrong'
+            )
+        time.sleep(.5)
+
+    return request_session, api_url
+
+
+@pytest.mark.compose_file_path
+def test_read_all(wait_for_api):
+    request_session, api_url = wait_for_api
+    assert len(request_session.get(urljoin(api_url, 'items/all')).json()) == 0
+
+
+if __name__ == '__main__':
+    pytest.main(['-m', 'compose_file_path', '--docker-compose', './my_network/docker-compose.yml', '--docker-compose-no-build'])