add test for process_instance_show

src/spiffworkflow_backend/routes/process_api_blueprint.py

@@ -625,9 +625,6 @@ def process_instance_show(
             bpmn_xml_file_contents = GitService.get_instance_file_contents_for_revision(
                 process_model, process_instance.bpmn_version_control_identifier
             )
-        # dummy_var = GitService.get_instance_file_contents_for_revision(
-        #         process_model, process_instance.bpmn_version_control_identifier
-        #     )
         process_instance.bpmn_xml_file_contents = bpmn_xml_file_contents
 
     return make_response(jsonify(process_instance), 200)

tests/spiffworkflow_backend/integration/test_process_api.py

@@ -8,6 +8,8 @@ import pytest
 from flask.app import Flask
 from flask.testing import FlaskClient
 from flask_bpmn.models.db import db
+
+from spiffworkflow_backend.services.file_system_service import FileSystemService
 from tests.spiffworkflow_backend.helpers.base_test import BaseTest
 from tests.spiffworkflow_backend.helpers.test_data import load_test_spec
 
@@ -722,6 +724,29 @@ class TestProcessApi(BaseTest):
         assert response.json["data"]["Mike"] == "Awesome"
         assert response.json["data"]["person"] == "Kevin"
 
+    def test_process_instance_show(self, app: Flask, client: FlaskClient, with_db_and_bpmn_file_cleanup: None) -> None:
+        process_group_id = "simple_script"
+        process_model_id = "simple_script"
+        user = self.find_or_create_user()
+        headers = self.logged_in_headers(user)
+        create_response = self.create_process_instance(
+            client, process_group_id, process_model_id, headers
+        )
+        process_instance_id = create_response.json["id"]
+        run_response = client.post(
+            f"/v1.0/process-models/{process_group_id}/{process_model_id}/process-instances/{process_instance_id}/run",
+            headers=self.logged_in_headers(user),
+        )
+        show_response = client.get(
+            f"/v1.0/process-models/{process_group_id}/{process_model_id}/process-instances/{process_instance_id}",
+            headers=self.logged_in_headers(user)
+        )
+        file_system_root = FileSystemService.root_path()
+        file_path = f"{file_system_root}/{process_group_id}/{process_model_id}/{process_model_id}.bpmn"
+        with open(file_path) as f_open:
+            xml_file_contents = f_open.read()
+            assert show_response.json['bpmn_xml_file_contents'] == xml_file_contents
+
     def test_message_start_when_starting_process_instance(
         self, app: Flask, client: FlaskClient, with_db_and_bpmn_file_cleanup: None
     ) -> None: