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"""
Generate Phase 101 Coverage Summary
Generates comprehensive coverage summary for Phase 101 target services:
- agent_governance_service.py
- episode_segmentation_service.py
- episode_retrieval_service.py
- episode_lifecycle_service.py
- canvas_tool.py
- agent_guidance_canvas_tool.py
Output: backend/tests/coverage_reports/metrics/phase_101_coverage_summary.json
"""
import json
import subprocess
import sys
from datetime import datetime
from pathlib import Path
from typing import Any, Dict, List, Tuple
# Target services for Phase 101
TARGET_SERVICES = [
"backend/core/agent_governance_service.py",
"backend/core/episode_segmentation_service.py",
"backend/core/episode_retrieval_service.py",
"backend/core/episode_lifecycle_service.py",
"backend/tools/canvas_tool.py",
"backend/tools/agent_guidance_canvas_tool.py",
]
# Baseline coverage from coverage_baseline.json
BASELINE_COVERAGE = {
"backend/core/agent_governance_service.py": 20.0,
"backend/core/episode_segmentation_service.py": 8.25,
"backend/core/episode_retrieval_service.py": 9.03,
"backend/core/episode_lifecycle_service.py": 0.0, # Not in baseline, assuming 0%
"backend/tools/canvas_tool.py": 3.8,
"backend/tools/agent_guidance_canvas_tool.py": 0.0, # Not in baseline, assuming 0%
}
def run_coverage() -> Dict[str, Any]:
"""Run pytest with coverage and return JSON output."""
print("Running coverage analysis for Phase 101 target services...")
cmd = [
sys.executable, "-m", "pytest",
"backend/tests/unit/governance/",
"backend/tests/unit/episodes/",
"backend/tests/unit/canvas/",
"backend/tests/property_tests/governance/",
"backend/tests/property_tests/episodes/",
"-v",
"--cov=backend/core/agent_governance_service",
"--cov=backend/core/episode_segmentation_service",
"--cov=backend/core/episode_retrieval_service",
"--cov=backend/core/episode_lifecycle_service",
"--cov=backend/tools/canvas_tool",
"--cov=backend/tools/agent_guidance_canvas_tool",
"--cov-report=term-missing",
"--cov-report=json:",
"--cov-report=term-missing:skip-covered",
]
print(f"Running: {' '.join(cmd)}")
result = subprocess.run(
cmd,
capture_output=True,
text=True,
cwd=Path(__file__).parent.parent.parent,
)
print(result.stdout)
if result.stderr:
print("STDERR:", result.stderr, file=sys.stderr)
# Load coverage.json
coverage_file = Path(__file__).parent.parent.parent / "coverage.json"
if not coverage_file.exists():
print(f"ERROR: coverage.json not found at {coverage_file}", file=sys.stderr)
return {}
with open(coverage_file) as f:
coverage_data = json.load(f)
return coverage_data
def extract_service_metrics(coverage_data: Dict[str, Any]) -> List[Dict[str, Any]]:
"""Extract coverage metrics for each target service."""
services = []
for service_path in TARGET_SERVICES:
# Normalize path for coverage.json lookup
normalized_path = service_path.replace("backend/", "")
# Find coverage data
files = coverage_data.get("files", {})
coverage_info = None
# Try exact match first
if normalized_path in files:
coverage_info = files[normalized_path]
else:
# Try finding by partial match
for file_path, file_data in files.items():
if service_path.split("/")[-1] in file_path:
coverage_info = file_data
normalized_path = file_path
break
if not coverage_info:
print(f"WARNING: No coverage data found for {service_path}", file=sys.stderr)
continue
summary = coverage_info.get("summary", {})
total_lines = summary.get("num_statements", 0)
covered_lines = summary.get("covered_lines", 0)
coverage_pct = summary.get("percent_covered", 0.0)
# Get baseline coverage
baseline_pct = BASELINE_COVERAGE.get(service_path, 0.0)
# Calculate baseline covered lines estimate
baseline_covered = int(total_lines * baseline_pct / 100)
# Estimate tests added (rough estimate based on coverage improvement)
# Assume each test covers ~20 lines on average
new_lines_covered = covered_lines - baseline_covered
tests_added = max(0, round(new_lines_covered / 20))
services.append({
"file": service_path,
"coverage_pct_before": round(baseline_pct, 2),
"coverage_pct_after": round(coverage_pct, 2),
"covered_lines_before": baseline_covered,
"covered_lines_after": covered_lines,
"total_lines": total_lines,
"threshold_met": coverage_pct >= 60.0,
"tests_added": tests_added,
"delta_pct": round(coverage_pct - baseline_pct, 2),
})
return services
def generate_summary(services: List[Dict[str, Any]]) -> Dict[str, Any]:
"""Generate overall summary metrics."""
total_services = len(services)
services_meeting_threshold = sum(1 for s in services if s["threshold_met"])
# Calculate overall coverage (weighted by lines of code)
total_lines = sum(s["total_lines"] for s in services)
total_covered = sum(s["covered_lines_after"] for s in services)
overall_coverage = round((total_covered / total_lines * 100) if total_lines > 0 else 0, 2)
# Calculate baseline overall coverage
total_covered_before = sum(s["covered_lines_before"] for s in services)
baseline_coverage = round((total_covered_before / total_lines * 100) if total_lines > 0 else 0, 2)
# Total tests added (sum of estimates)
total_tests_added = sum(s["tests_added"] for s in services)
return {
"total_services": total_services,
"services_meeting_threshold": services_meeting_threshold,
"overall_coverage_pct_before": baseline_coverage,
"overall_coverage_pct_after": overall_coverage,
"threshold_met": services_meeting_threshold == total_services,
"tests_added": total_tests_added,
"delta_pct": round(overall_coverage - baseline_coverage, 2),
}
def main():
"""Main execution."""
print("=" * 80)
print("Phase 101 Coverage Summary Generator")
print("=" * 80)
# Run coverage analysis
coverage_data = run_coverage()
if not coverage_data:
print("ERROR: Failed to generate coverage data", file=sys.stderr)
sys.exit(1)
# Extract metrics for each service
services = extract_service_metrics(coverage_data)
if not services:
print("ERROR: No service metrics extracted", file=sys.stderr)
sys.exit(1)
# Generate summary
summary = generate_summary(services)
# Build final JSON structure
output = {
"phase": "101",
"generated_at": datetime.utcnow().isoformat() + "+00:00Z",
"baseline_version": "v5.0",
"target_threshold": 60.0,
"summary": summary,
"services": services,
}
# Write output file
output_dir = Path(__file__).parent.parent / "coverage_reports" / "metrics"
output_dir.mkdir(parents=True, exist_ok=True)
output_file = output_dir / "phase_101_coverage_summary.json"
with open(output_file, "w") as f:
json.dump(output, f, indent=2)
print("\n" + "=" * 80)
print("Phase 101 Coverage Summary")
print("=" * 80)
print(f"Total Services: {summary['total_services']}")
print(f"Services Meeting 60% Threshold: {summary['services_meeting_threshold']}")
print(f"Overall Coverage (Before): {summary['overall_coverage_pct_before']}%")
print(f"Overall Coverage (After): {summary['overall_coverage_pct_after']}%")
print(f"Delta: +{summary['delta_pct']}%")
print(f"Threshold Met: {summary['threshold_met']}")
print(f"Estimated Tests Added: {summary['tests_added']}")
print(f"\nOutput written to: {output_file}")
print("=" * 80)
# Print individual service breakdown
print("\nIndividual Service Breakdown:")
print("-" * 80)
for service in services:
status = "✓ PASS" if service["threshold_met"] else "✗ FAIL"
print(f"{status} | {service['file']}")
print(f" Before: {service['coverage_pct_before']}% → After: {service['coverage_pct_after']}% (Delta: +{service['delta_pct']}%)")
print(f" Lines: {service['covered_lines_after']}/{service['total_lines']} ({service['coverage_pct_after']}%)")
print(f" Tests Added: ~{service['tests_added']}")
# Exit with error if threshold not met
if not summary["threshold_met"]:
print("\nERROR: Not all services meet 60% threshold", file=sys.stderr)
sys.exit(1)
if __name__ == "__main__":
main()
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