tests/gateway/post_upload: Use webtest.TestApp for functional tests

src/tests/gateway/test_post_upload.py

@@ -0,0 +1,30 @@
+"""Tests via `bottle` endpoints."""
+import os
+import sys
+from typing import Callable
+
+from webtest import TestApp
+
+# Tests don't include the directory that `pytest` is run from on sys.path
+sys.path.append(os.getcwd())
+
+import eddn.Gateway  # noqa: E402 # Has to be after that sys.path fixup
+
+
+def test_plain_message(eddn_message: Callable) -> None:
+    """Test eddn.Gateway /upload/ with a plain message."""
+    eddn.Gateway.setup_bottle_app()
+
+    # Wrap the real app in a TestApp object
+    test_app = TestApp(eddn.Gateway.app)
+    assert test_app is not None
+
+    dc_msg = test_app.post(
+        '/upload/',
+        params=eddn_message('plain_journal_scan_valid'),
+        headers={
+            'Content-Type': 'application/json'
+        },
+    )
+
+    assert dc_msg == 'OK'