Add custom validator tests

doorstop/core/tests/test_item_extensions.py

@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: LGPL-3.0-only
+# pylint: disable=C0302
+
+"""Unit tests for the doorstop.core.item module."""
+
+import os
+import unittest
+from types import ModuleType
+from unittest.mock import patch
+
+from doorstop.common import import_path_as_module
+from doorstop.core.tests import TESTS_ROOT, MockItem, MockSimpleDocumentExtensions
+
+
+class TestItem(unittest.TestCase):
+    """Unit tests for the Item class."""
+
+    # pylint: disable=protected-access,no-value-for-parameter
+
+    def setUp(self):
+        path = os.path.join("path", "to", "RQ001.yml")
+        self.item = MockItem(MockSimpleDocumentExtensions(), path)
+
+
+    @patch("doorstop.settings.CACHE_PATHS", False)
+    def test_load_custom_validator_per_folder(self):
+        """Load a valid custom validator per folder."""
+        path = os.path.join("path", "to", "RQ001.yml")
+        self.item = MockItem(
+            MockSimpleDocumentExtensions(
+                item_validator=f"{TESTS_ROOT}/validators/validator_dummy.py"
+            ),
+            path,
+        )
+        document = self.item.document
+        validator = import_path_as_module(document.extensions["item_validator"])
+
+        self.assertEqual(isinstance(validator, ModuleType), True)
+
+    @patch("doorstop.settings.CACHE_PATHS", False)
+    def test_load_custom_validator_per_folder_and_fails(self):
+        """Load a invalid custom validator per folder and fails with FileNotFoundError."""
+        path = os.path.join("path", "to", "RQ001.yml")
+        self.item = MockItem(
+            MockSimpleDocumentExtensions(
+                item_validator=f"{TESTS_ROOT}/files/validator_dummy2.py"
+            ),
+            path,
+        )
+        document = self.item.document
+        try:
+            validator = import_path_as_module(document.extensions["item_validator"])
+        except FileNotFoundError:
+            validator = FileNotFoundError
+
+        self.assertEqual(FileNotFoundError, validator)
+

doorstop/core/tests/validators/validator_dummy.py

@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: LGPL-3.0-only
+
+from doorstop import DoorstopError, DoorstopInfo, DoorstopWarning
+
+
+def item_validator(item):
+    if item:
+        yield DoorstopInfo("Loaded")