Change to pytest & add test of invalid data

template/justfile

@@ -136,8 +136,8 @@ _test-examples: _ensure_examples_output
     poetry run linkml-run-examples \
         --output-formats json \
         --output-formats yaml \
-        --counter-example-input-directory src/data/examples/invalid \
-        --input-directory src/data/examples/valid \
+        --counter-example-input-directory tests/data/invalid \
+        --input-directory tests/data/valid \
         --output-directory examples/output \
         --schema {{source_schema_path}} > examples/output/README.md
 

template/tests/data/invalid/{% if add_example %}Person-002.yaml{% endif %}.jinja

@@ -0,0 +1,7 @@
+# Example data object
+---
+entries:
+  - id: example:Person002
+    name: foo bara
+    primary_email: [email protected]
+    age_in_years: -2

template/tests/{% if add_example %}test_data.py{% endif %}.jinja

@@ -1,22 +1,20 @@
 """Data test."""
 import os
 import glob
-import unittest
-
+import pytest
+from pathlib import Path
 from linkml_runtime.loaders import yaml_loader
 from {{project_slug}}.datamodel.{{project_slug}} import PersonCollection
 
-ROOT = os.path.join(os.path.dirname(__file__), '..')
-DATA_DIR = os.path.join(ROOT, "src", "data", "examples")
-
-EXAMPLE_FILES = glob.glob(os.path.join(DATA_DIR, '*.yaml'))
+DATA_DIR_VALID = Path(__file__).parent / "data" / "valid"
+DATA_DIR_INVALID = Path(__file__).parent / "data" / "invalid"
 
+VALID_EXAMPLE_FILES = glob.glob(os.path.join(DATA_DIR_VALID, '*.yaml'))
+INVALID_EXAMPLE_FILES = glob.glob(os.path.join(DATA_DIR_INVALID, '*.yaml'))
 
-class TestData(unittest.TestCase):
-    """Test data and datamodel."""
 
-    def test_data(self):
-        """Data test."""
-        for path in EXAMPLE_FILES:
-            obj = yaml_loader.load(path, target_class=PersonCollection)
-            assert obj
+@pytest.mark.parametrize("filepath", VALID_EXAMPLE_FILES)
+def test_valid_data_files(filepath):
+    """Test loading of all valid data files."""
+    obj = yaml_loader.load(filepath, target_class=PersonCollection)
+    assert obj