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backend/tests/test_analysis.py

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+"""Tests for analysis parser and metrics."""
+
+from app.analysis.parser import compare_findings, parse_output
+
+
+def test_parse_l1_output():
+    output = "- null pointer\n- off by one"
+    findings = parse_output(output, "L1")
+    assert len(findings) == 2
+    assert findings[0].defect_type == "null pointer"
+
+
+def test_parse_l2_output():
+    output = """- Type: null_pointer
+  Lines: 5-6
+  Explanation: missing guard"""
+    findings = parse_output(output, "L2")
+    assert len(findings) == 1
+    assert findings[0].line_start == 5
+    assert findings[0].line_end == 6
+
+
+def test_compare_findings():
+    findings = parse_output("- null_pointer", "L1")
+    gt = [{"id": "1", "defect_type": "null_pointer", "line_start": 5, "line_end": 5}]
+    metrics = compare_findings(findings, gt)
+    assert metrics["detection_rate"] == 1.0
+    assert metrics["coverage_rate"] == 1.0