Merge pull request #31 from OneBusAway/2to3

Python 2 -> 3, end to end tests, and CI

.github/workflows/ci.yml

@@ -0,0 +1,22 @@
+name: End-to-End Tests
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+
+jobs:
+  run-e2e-tests:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Check out repository code
+      uses: actions/checkout@v3
+
+    - name: Set up Python
+      uses: actions/setup-python@v4
+      with:
+        python-version: '3.12'
+
+    - name: Run End-to-End tests
+      run: python test_e2e.py

.gitignore

@@ -0,0 +1,7 @@
+__pycache__
+./regions.xml
+./regions.json
+./regions-v3.xml
+./regions-v3.json
+tests/tmp/*.json
+tests/tmp/*.xml

test_e2e.py

@@ -0,0 +1,41 @@
+#!/usr/bin/env python
+
+import subprocess
+import unittest
+import os
+
+class TestEndToEnd(unittest.TestCase):
+    @staticmethod
+    def read_file_as_string(file_path):
+        # Determine the directory of the current script (test_e2e.py)
+        current_script_directory = os.path.dirname(os.path.realpath(__file__))
+
+        # Construct an absolute path by combining the script directory with the relative file path
+        absolute_file_path = os.path.join(current_script_directory, file_path)
+
+        with open(absolute_file_path, 'r', encoding='utf-8') as file:
+            return file.read()
+
+    def test_update_regions_output(self):
+        command = ["python", "update_regions.py", "--input-file", "./tests/fixtures/server_directory.csv", "--output-dir", "./tests/tmp", "--pretty"]
+        _ = subprocess.run(command, capture_output=True, text=True)
+
+        regions_xml_fixture = self.read_file_as_string('tests/fixtures/regions.xml')
+        regions_xml_output = self.read_file_as_string('tests/tmp/regions.xml')
+        self.assertEqual(regions_xml_fixture, regions_xml_output, "regions.xml should be identical")
+
+        regions_xml_v3_fixture = self.read_file_as_string('tests/fixtures/regions-v3.xml')
+        regions_xml_v3_output = self.read_file_as_string('tests/tmp/regions-v3.xml')
+        self.assertEqual(regions_xml_v3_fixture, regions_xml_v3_output, "regions-v3.xml should be identical")
+
+        regions_json_fixture = self.read_file_as_string('tests/fixtures/regions.json')
+        regions_json_output = self.read_file_as_string('tests/tmp/regions.json')
+        self.assertEqual(regions_json_fixture, regions_json_output, "regions.json should be identical")
+
+        regions_json_v3_fixture = self.read_file_as_string('tests/fixtures/regions-v3.json')
+        regions_json_v3_output = self.read_file_as_string('tests/tmp/regions-v3.json')
+        self.assertEqual(regions_json_v3_fixture, regions_json_v3_output, "regions-v3.json should be identical")
+
+# This allows the test to be run from the command line
+if __name__ == '__main__':
+    unittest.main()