Add pytest test suite for airc validator

Author: simaba

tests/test_validator.py

@@ -0,0 +1,80 @@
+"""Tests for airc validator module."""
+import pytest
+import yaml
+from pathlib import Path
+from airc.validator import validate_checklist, ChecklistValidationError
+
+
+MINIMAL_CONFIG = {
+    "metadata": {
+        "project": "test-project",
+        "version": "1.0.0",
+        "environment": "staging",
+        "regulated_industry": "general",
+        "risk_classification": "low",
+    },
+    "model_validation": {
+        "performance": {"accuracy_threshold": 0.90, "bias_evaluation_complete": True}
+    },
+    "governance": {
+        "approvals": {"technical_review": True}
+    },
+    "infrastructure": {
+        "testing": {"unit_tests_passing": True}
+    },
+}
+
+
+@pytest.fixture
+def config_file(tmp_path):
+    def _write(config_dict):
+        p = tmp_path / "checklist.yaml"
+        p.write_text(yaml.dump(config_dict))
+        return p
+    return _write
+
+
+def test_minimal_low_risk_config_passes(config_file):
+    path = config_file(MINIMAL_CONFIG)
+    result = validate_checklist(path)
+    assert result.passed
+
+
+def test_missing_required_section_raises(config_file):
+    bad = {k: v for k, v in MINIMAL_CONFIG.items() if k != "governance"}
+    path = config_file(bad)
+    with pytest.raises(ChecklistValidationError):
+        validate_checklist(path)
+
+
+def test_failed_required_gate_fails(config_file):
+    config = {**MINIMAL_CONFIG, "metadata": {**MINIMAL_CONFIG["metadata"], "risk_classification": "medium"}}
+    config["governance"]["documentation"] = {"risk_assessment_complete": False}
+    path = config_file(config)
+    result = validate_checklist(path)
+    assert not result.passed
+    assert result.failed_count > 0
+
+
+def test_result_metadata_populated(config_file):
+    path = config_file(MINIMAL_CONFIG)
+    result = validate_checklist(path)
+    assert result.project == "test-project"
+    assert result.version == "1.0.0"
+    assert result.environment == "staging"
+    assert result.risk_classification == "low"
+    assert result.regulated_industry == "general"
+
+
+def test_invalid_yaml_raises(tmp_path):
+    p = tmp_path / "bad.yaml"
+    p.write_text("{invalid: yaml: content: [}")
+    with pytest.raises(ChecklistValidationError):
+        validate_checklist(p)
+
+
+def test_industry_override(config_file):
+    config = {**MINIMAL_CONFIG}
+    path = config_file(config)
+    result = validate_checklist(path, industry_override="healthcare")
+    assert result.regulated_industry == "healthcare"