add endpoint check to integration test

tests/test_integration.py

@@ -1,10 +1,34 @@
 import os
+import time
+import requests
 from constellation import docker_util
 from src.grout_deploy.cli import main
 
+base_url = "http://localhost:5000"
+
+def wait_for_web_app(poll_interval=0.2, max=5):
+    for i in range(0, round(max/poll_interval)):
+        status_code = None
+        try:
+           status_code = requests.get(base_url).status_code
+        except requests.exceptions.ConnectionError:
+            pass
+        if status_code == 200:
+            return
+        time.sleep(poll_interval)
+    raise Exception(f"Web app not available within max timeout of {max}s")
+
 def test_start_and_stop_grout():
     assert os.getenv("GITHUB_ACCESS_TOKEN") is not None, "GITHUB_ACCESS_TOKEN env var must be set to run integration test"
     main(["start", "grout", "--pull"])
     assert docker_util.container_exists("grout")
+
+    # check can access metadata endpoint
+    wait_for_web_app()
+    response = requests.get(f"{base_url}/metadata")
+    assert response.status_code == 200
+    json = response.json()
+    assert json["data"]["datasets"]["tile"]["gadm41"]["levels"] == ["admin0", "admin1", "admin2"]
+
     main(["stop"])
     assert not docker_util.container_exists("grout")