Add a test for parse error output (coverage)

Author: dbanty

end_to_end_tests/invalid_openapi.yaml

@@ -0,0 +1,19 @@
+openapi: "3.1.0"
+info:
+  title: "There's something wrong with me"
+  version: "0.1.0"
+paths:
+  "/{optional}":
+    get:
+      parameters:
+        - in: "path"
+          name: "optional"
+          schema:
+            type: "string"
+      responses:
+        "200":
+          description: "Successful Response"
+          content:
+            "application/json":
+              schema:
+                const: "Why have a fixed response? I dunno"

end_to_end_tests/test_end_to_end.py

@@ -222,6 +222,14 @@ def test_bad_url():
     assert "Could not get OpenAPI document from provided URL" in result.stdout
 
 
+def test_invalid_document():
+    runner = CliRunner()
+    path = Path(__file__).parent / "invalid_openapi.yaml"
+    result = runner.invoke(app, ["generate", f"--path={path}", "--fail-on-warning"])
+    assert result.exit_code == 1
+    assert "Warning(s) encountered while generating" in result.stdout
+
+
 def test_custom_post_hooks():
     shutil.rmtree(Path.cwd() / "my-test-api-client", ignore_errors=True)
     runner = CliRunner()