added infrastructure code

tests/unit/test_job_repository.py

@@ -0,0 +1,85 @@
+"""Unit tests for JobRepository class."""
+
+import unittest
+from unittest.mock import patch, MagicMock, _patch_dict
+from uuid import UUID
+
+from data_store.repositories.job_repository import JobRepository
+
+
+class TestJobRepository(unittest.TestCase):
+    """Unit tests for JobRepository class."""
+
+    patcher: _patch_dict
+    repo: JobRepository
+    job_id: UUID
+    bad_job_id: str
+
+    @classmethod
+    def setUpClass(cls) -> None:
+        """Set up test case with a mocked MinioAdapter."""
+        # Patch environment variables for MinioAdapter
+        cls.patcher = patch.dict(
+            "os.environ",
+            {
+                "MINIO_ENDPOINT": "localhost:9000",
+                "MINIO_ACCESS_KEY": "minioadmin",
+                "MINIO_SECRET_KEY": "minioadmin",
+                "MINIO_BUCKET": "test-bucket",
+            },
+        )
+        cls.patcher.start()
+        # Prepare JobRepository
+        cls.repo = JobRepository()
+        cls.repo._get = MagicMock(return_value=None)  # type: ignore[method-assign]
+        cls.repo._put = MagicMock(return_value=None)  # type: ignore[method-assign]
+        cls.repo._delete = MagicMock(return_value=None)  # type: ignore[method-assign]
+        # Prepare other test variables
+        cls.job_id = UUID("d87022f8-4169-4d69-8512-bbd65cc1cb23")
+        cls.bad_job_id = "not-a-uuid"
+
+    @classmethod
+    def tearDownClass(cls) -> None:
+        # Stop patching
+        cls.patcher.stop()
+
+    def setUp(self) -> None:
+        """Set up each test with a fresh JobRepository instance."""
+        self.repo._get.reset_mock()  # type: ignore[attr-defined]
+        self.repo._put.reset_mock()  # type: ignore[attr-defined]
+        self.repo._delete.reset_mock()  # type: ignore[attr-defined]
+
+    def test_should_adhere_to_interface(self) -> None:
+        """Test that JobRepository adheres to JobRepositoryInterface."""
+        # Instantiation fails if interface not adhered to
+        _ = JobRepository()
+
+    def test_enter_calls_super_and_returns_self(self) -> None:
+        """Test that __enter__ calls super().__enter__() and returns self."""
+        repo = JobRepository()
+        with patch(
+            "python_repositories.adapters.MinioAdapter.__enter__", return_value=None
+        ) as mock_super_enter:
+            result = repo.__enter__()
+            mock_super_enter.assert_called_once()
+            self.assertIs(result, repo)
+
+    def test_get_invalid_job_id_raises_value_error(self) -> None:
+        """Test that get with invalid job_id raises ValueError."""
+        with self.assertRaises(ValueError):
+            self.repo.get(self.bad_job_id)  # type: ignore[arg-type]
+
+    def test_put_invalid_job_raises_value_error(self) -> None:
+        """Test that put with invalid job raises ValueError."""
+        with self.assertRaises(ValueError):
+            self.repo.put("not_a_job")  # type: ignore[arg-type]
+
+    def test_delete_invalid_job_id_raises_value_error(self) -> None:
+        """Test that delete with invalid job_id raises ValueError."""
+        with self.assertRaises(ValueError):
+            self.repo.delete(self.bad_job_id)  # type: ignore[arg-type]
+
+
+# Allows local debugging by running file as script
+if __name__ == "__main__":
+    unittest.main()