feat(pipeline): implement golden test suite + fix ontology patterns

- Add test_golden_controls.py: 37 tests covering all 8 YAML categories
  (container, framework, evidence, negative, title, split, scope, merge_key)
- Fix evidence detection: handle German feminine articles (eine/einer/etc.)
- Fix framework detection: use verb stems for conjugated German verbs
- Add framework patterns: OWASP API6, CCM without CSA prefix, generic category
- Fix negative patterns: use "nicht übertragen/gespeichert/erscheinen" before
  generic "dürfen nicht" to correctly route prevent vs exclude

All 73 tests passing (36 ontology + 37 golden).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

control-pipeline/services/control_ontology.py

@@ -139,10 +139,14 @@ for action_type, info in ACTION_TYPES.items():
 
 _NEGATIVE_PATTERNS: list[tuple[str, str]] = [
     # Longer/specific patterns first (checked in order)
-    ("darf nicht wiederverwendet", "prevent"),
-    ("nicht in der URL", "prevent"),
-    ("nicht im Token", "prevent"),
-    ("nicht in Logs", "prevent"),
+    ("nicht wiederverwendet", "prevent"),
+    ("nicht in der url", "prevent"),
+    ("nicht im token", "prevent"),
+    ("nicht in logs", "prevent"),
+    ("nicht in urls", "prevent"),
+    ("nicht gespeichert", "prevent"),
+    ("nicht übertragen", "prevent"),
+    ("nicht erscheinen", "prevent"),
     ("verhindern", "prevent"),
     ("unterbinden", "prevent"),
     ("abweisen", "enforce"),
@@ -199,15 +203,17 @@ EVIDENCE_INDICATORS: set[str] = {
 
 _FRAMEWORK_PATTERNS: list[str] = [
     r"OWASP\s+ASVS\s+V\d",
+    r"OWASP\s+API\d+",
     r"OWASP\s+API\s+Top\s+10",
     r"NIST\s+SP\s+800-\d+",
-    r"NIST\s+IA-\d+",
-    r"NIST\s+AC-\d+",
+    r"NIST\s+IA[\s-]",
+    r"NIST\s+AC[\s-]",
     r"BSI\s+IT-Grundschutz",
     r"BSI\s+200-\d",
-    r"CSA\s+CCM",
+    r"(?:CSA\s+)?CCM[\s-]",
     r"ISO\s+27001",
     r"ISO\s+27002",
+    r"alle\s+Controls\s+der\s+Kategorie",
 ]
 
 
@@ -258,7 +264,11 @@ def is_evidence(text: str) -> bool:
 
     # Primary check: evidence indicators at the start
     for indicator in EVIDENCE_INDICATORS:
-        if text_lower.startswith(indicator) or f"ein {indicator}" in text_lower:
+        if text_lower.startswith(indicator):
+            return True
+        # German articles: ein/eine/einen/einem/einer + indicator
+        for article in ("ein ", "eine ", "einen ", "einem ", "einer "):
+            if f"{article}{indicator}" in text_lower:
                 return True
 
     # Secondary: "X dokumentieren" where X is another action's result
@@ -276,9 +286,10 @@ def is_framework_reference(text: str) -> bool:
     for pattern in _FRAMEWORK_PATTERNS:
         if re.search(pattern, text, re.IGNORECASE):
             # Only if the text is a generic "implement X framework" statement
-            implement_words = {"umsetzen", "implementieren", "einhalten", "erfüllen", "anwenden"}
+            # Use stems to handle German conjugation (umsetzen/umzusetzen/umgesetzt)
+            implement_stems = ("umsetz", "umzusetz", "implementier", "einhalt", "erfüll", "anwend")
             text_lower = text.lower()
-            if any(w in text_lower for w in implement_words):
+            if any(s in text_lower for s in implement_stems):
                 return True
     return False
 

control-pipeline/tests/test_control_ontology.py

@@ -116,7 +116,7 @@ class TestClassifyObligation:
     def test_negative_obligation(self):
         result = classify_obligation("Sensible Daten dürfen nicht in URLs übertragen werden")
         assert result["routing"] == "atomic"
-        assert result["action_type"] == "exclude"
+        assert result["action_type"] == "prevent"
 
 
 class TestBuildCanonicalKey:

control-pipeline/tests/test_golden_controls.py

@@ -0,0 +1,237 @@
+"""
+Golden Test Suite — pytest implementation of golden_controls.yaml.
+
+Tests Pre-LLM classification (evidence, container, framework detection),
+title quality rules, and negative obligation handling via control_ontology.
+"""
+
+import sys
+import os
+import yaml
+import pytest
+
+# Ensure control-pipeline is in the path
+sys.path.insert(0, os.path.join(os.path.dirname(__file__), ".."))
+
+from services.control_ontology import (
+    classify_obligation,
+    classify_action,
+    build_canonical_key,
+)
+
+
+# ---------------------------------------------------------------------------
+# Load YAML once
+# ---------------------------------------------------------------------------
+
+GOLDEN_PATH = os.path.join(os.path.dirname(__file__), "golden_controls.yaml")
+
+with open(GOLDEN_PATH) as f:
+    _GOLDEN = yaml.safe_load(f)
+
+TESTS = _GOLDEN["tests"]
+QUALITY_GATES = _GOLDEN["global_quality_gates"]
+
+
+def _tests_by_category(cat: str) -> list:
+    return [t for t in TESTS if t["category"] == cat]
+
+
+# ============================================================================
+# D. Container Detection (5 tests)
+# ============================================================================
+
+class TestContainerDetection:
+    """GT-CONTAINER-001..005: composite obligations must be routed as composite."""
+
+    @pytest.mark.parametrize("case", _tests_by_category("container_control_detection"),
+                             ids=lambda c: c["id"])
+    def test_container_routed_composite(self, case):
+        inp = case["input"]
+        result = classify_obligation(inp, "")
+        expected_routing = case["expected"].get("routing_type", "composite")
+        assert result["routing"] == expected_routing, (
+            f"{case['id']}: expected routing={expected_routing}, "
+            f"got {result['routing']} for: {inp}"
+        )
+
+
+# ============================================================================
+# E. Framework Decomposition (5 tests)
+# ============================================================================
+
+class TestFrameworkDetection:
+    """GT-FRAMEWORK-001..005: framework references must be detected."""
+
+    @pytest.mark.parametrize("case", _tests_by_category("framework_decomposition"),
+                             ids=lambda c: c["id"])
+    def test_framework_routed(self, case):
+        inp = case["input"]
+        result = classify_obligation(inp, "")
+        expected = case["expected"].get("routing_type", "framework_container")
+        assert result["routing"] == expected, (
+            f"{case['id']}: expected routing={expected}, "
+            f"got {result['routing']} for: {inp}"
+        )
+
+
+# ============================================================================
+# F. Evidence Leakage (5 tests)
+# ============================================================================
+
+class TestEvidenceDetection:
+    """GT-EVIDENCE-001..005: evidence obligations must not become controls."""
+
+    @pytest.mark.parametrize("case", _tests_by_category("evidence_not_control"),
+                             ids=lambda c: c["id"])
+    def test_evidence_detected(self, case):
+        inp = case["input"]
+        result = classify_obligation(inp, "")
+        assert result["routing"] == "evidence", (
+            f"{case['id']}: expected routing=evidence, "
+            f"got {result['routing']} for: {inp}"
+        )
+
+
+# ============================================================================
+# C. Negative Obligation Handling (5 tests)
+# ============================================================================
+
+class TestNegativeObligations:
+    """GT-NEG-001..005: negative patterns produce correct action_type."""
+
+    @pytest.mark.parametrize("case", _tests_by_category("negative_obligation_handling"),
+                             ids=lambda c: c["id"])
+    def test_negative_action_type(self, case):
+        inp = case["input"]
+        expected_action = case["expected"].get("action_type")
+        if not expected_action:
+            pytest.skip("No expected action_type specified")
+
+        result = classify_action(inp)
+        assert result == expected_action, (
+            f"{case['id']}: expected action_type={expected_action}, "
+            f"got {result} for: {inp}"
+        )
+
+
+# ============================================================================
+# H. Title Quality (structural tests — no LLM needed)
+# ============================================================================
+
+class TestTitleQuality:
+    """GT-TITLE-001..005: structural title rules."""
+
+    def test_gt_title_001_no_truncated_endings(self):
+        """Truncated titles are forbidden globally."""
+        assert QUALITY_GATES["truncated_titles_allowed"] is False
+
+    def test_gt_title_005_composite_not_atomic(self):
+        """'Token-Schutz muss umgesetzt werden' is a composite, not atomic."""
+        case = next(t for t in TESTS if t["id"] == "GT-TITLE-005")
+        result = classify_obligation(case["input"], "")
+        assert result["routing"] == "composite", (
+            f"GT-TITLE-005: 'Token-Schutz' should be composite, got {result['routing']}"
+        )
+
+
+# ============================================================================
+# B. Compound Action Split (structural — classify_action only)
+# ============================================================================
+
+class TestCompoundActionSplit:
+    """Test that compound inputs contain recognizable actions."""
+
+    def test_gt_split_001_define_and_enforce(self):
+        """'definieren und durchsetzen' should yield define action."""
+        result = classify_action("Maximale Payload-Größen definieren")
+        assert result == "define"
+
+    def test_gt_split_001_enforce(self):
+        result = classify_action("Payload-Größen technisch durchsetzen")
+        assert result == "enforce"
+
+    def test_gt_split_003_identify(self):
+        result = classify_action("Schwachstellen identifizieren")
+        assert result == "identify"
+
+    def test_gt_split_003_assess(self):
+        result = classify_action("Schwachstellen bewerten")
+        assert result == "assess"
+
+    def test_gt_split_003_monitor(self):
+        result = classify_action("Schwachstellen überwachen")
+        assert result == "monitor"
+
+
+# ============================================================================
+# A. Duplicate Explosion (merge_key structure tests)
+# ============================================================================
+
+class TestMergeKeyStructure:
+    """Verify canonical key format: action_type:object:phase:scope."""
+
+    def test_canonical_key_format(self):
+        key = build_canonical_key(
+            action_type="implement",
+            normalized_object="api_rate_limiting",
+            phase="implementation",
+            asset_scope="api_endpoints",
+        )
+        assert key == "implement:api_rate_limiting:implementation:api_endpoints"
+
+    def test_canonical_key_no_empty_parts(self):
+        key = build_canonical_key(
+            action_type="define",
+            normalized_object="payload_limits",
+        )
+        assert key.startswith("define:payload_limits")
+
+    def test_canonical_key_colon_separated(self):
+        key = build_canonical_key("test", "obj", "phase", "scope")
+        parts = key.split(":")
+        assert len(parts) == 4
+
+
+# ============================================================================
+# G. Scope Dimension (structural — these need dedup to fully verify)
+# ============================================================================
+
+class TestScopeDimension:
+    """Structural checks: different actor scopes should classify as atomic."""
+
+    def test_gt_scope_001_employee_atomic(self):
+        result = classify_obligation("Mitarbeiter müssen Vertraulichkeit wahren.", "")
+        assert result["routing"] == "atomic"
+
+    def test_gt_scope_001_subcontractor_atomic(self):
+        result = classify_obligation("Unterauftragnehmer müssen Vertraulichkeit wahren.", "")
+        assert result["routing"] == "atomic"
+
+    def test_gt_scope_005_admin_mfa_atomic(self):
+        result = classify_obligation("Privilegierte Accounts müssen MFA verwenden.", "")
+        assert result["routing"] == "atomic"
+
+    def test_gt_scope_005_all_users_mfa_atomic(self):
+        result = classify_obligation("Alle Nutzer müssen MFA verwenden.", "")
+        assert result["routing"] == "atomic"
+
+
+# ============================================================================
+# Quality gate assertions
+# ============================================================================
+
+class TestQualityGates:
+    """Verify global quality gate values from YAML."""
+
+    def test_max_controls_per_obligation(self):
+        assert QUALITY_GATES["max_controls_per_single_obligation"] == 6
+
+    def test_no_evidence_as_control(self):
+        assert QUALITY_GATES["evidence_as_atomic_control_allowed"] is False
+
+    def test_no_framework_container_as_atomic(self):
+        assert QUALITY_GATES["framework_container_as_atomic_allowed"] is False
+
+    def test_no_composite_as_atomic(self):
+        assert QUALITY_GATES["composite_control_as_atomic_allowed"] is False