[Coverage Report] Test Coverage Report — 2026-09-06

[github-actions[bot]]

📊 Overall Coverage

Metric	Coverage	Trend
Statements	92.62%	✅ Excellent
Branches	86.43%	✅ Excellent
Functions	93.25%	✅ Excellent
Lines	93.98%	✅ Excellent

Summary: The codebase demonstrates strong overall test coverage at 92.62% of statements covered (13,617 of 14,702 statements). The project has 308 active test files running 3,000+ tests across 2,119 functions. This represents a mature testing infrastructure suitable for a security-critical firewall component.

🛡️ Security-Critical Path Status

The following files are part of the core security perimeter:

File	Statements	Branches	Functions	Lines	Status
src/host-iptables.ts	100%	100%	100%	100%	✅ Excellent
src/squid-config.ts	100%	100%	100%	100%	✅ Excellent
src/domain-patterns.ts	100%	89.47%	100%	100%	✅ Excellent
src/docker-manager.ts	100%	100%	100%	100%	✅ Excellent

Finding: All primary network isolation and domain filtering logic is fully covered with comprehensive branch testing.

📋 Coverage Table

✅ Highest Priority Files (Security-Critical)

File	Statements	Branches	Functions	Priority
src/bounded-execution/finite-disclosure.ts	38.12%	25.89%	55.31%	CRITICAL
src/microvm/network-reservation.ts	50.22%	54.26%	56.81%	HIGH
src/enclave/runtime-preflight.ts	66.66%	41.02%	100%	HIGH
src/commands/validators/config-assembly.ts	73.68%	25%	100%	MEDIUM
src/microvm/rootfs.ts	71.69%	54.54%	100%	MEDIUM

✅ Core Infrastructure (Fully Covered)

• src/api-proxy-config-domains.ts - 100%
• src/logger.ts - 100%
• src/cli-workflow.ts - 100%
• src/squid-config.ts - 100%
• src/host-iptables.ts - 100%
• src/docker-manager.ts - 100%

🔧 Function Audit

Total Functions: 2,119 (93.25% covered, 1,976 tested)

Gap Analysis:

• finite-disclosure.ts: 21 of 47 functions uncovered (44.7% gap)
  • Missing: Schema parsing edge cases, cardinality calculation error paths
• network-reservation.ts: 19 of 44 functions uncovered (43.2% gap)
  • Missing: Fallback reservation logic, network cleanup paths
• runtime-preflight.ts: 0 of 5 functions uncovered (100% functions tested!)
  • Note: High line coverage gap suggests conditional logic inside tested functions

📅 Recent Source Changes (last 7 days)

Recent commits to security-critical components:

1. Dynamic GitHub-MCP-backed enclave repository admission (feat: add dynamic GitHub-MCP-backed enclave repository admission #8217)

   • Added finite-disclosure.ts enhancements for new admission contract
   • Affects: bounded-execution/, enclave/

2. Host-gateway setup for Ollama domains (Enable host-gateway setup for explicit Ollama host domains #8172)

   • Minor network configuration enhancement
   • Affects: microvm/network-reservation.ts

3. AWF_HOST_PATH recovery across secure_path boundary (Add regression test for AWF_HOST_PATH recovery across the sudo secure_path boundary #8173)

   • Regression test added for path handling
   • Affects: microvm/rootfs.ts

These changes add new security codepaths that are not yet fully exercised by tests.

🔎 Notable Findings

1. Finite-Disclosure Protocol Gap: The new enclave admission contract (feat: add dynamic GitHub-MCP-backed enclave repository admission #8217) introduces finite-disclosure.ts with only 38% statement coverage. This module is critical for validating agent-authored schemas and managing information budget accounting. The 25.89% branch coverage indicates many error paths (invalid schemas, cardinality overflow, parse failures) are untested.

2. Network Reservation Dual-Path Coverage: network-reservation.ts shows healthy 54.26% branch coverage but only 50.22% statement coverage, suggesting the fallback reservation logic path has reduced test exercise compared to the primary path.

3. Strong Primary Security Layer: Core firewall logic (squid-config.ts, host-iptables.ts, domain-patterns.ts, docker-manager.ts) maintains 100% coverage with comprehensive branch testing, providing high confidence in network isolation enforcement.

4. Preflight Validation Robustness: runtime-preflight.ts shows 100% function coverage but only 66.66% statement coverage. This indicates all five preflight validators are tested, but certain conditional branches (likely error conditions or rare edge cases) are not exercised.

🎯 Recommendations

🔴 HIGH PRIORITY

1. Cover finite-disclosure.ts schema parsing edge cases

• Impact: Enclave admission security contract depends on strict schema validation
• Action: Add unit tests for:
  • Invalid JSON structures (malformed arrays, objects, unions)
  • Cardinality overflow (BigInt calculations)
  • Depth limit violations (nested unions > 50 levels)
  • Duplicate object keys
• Estimated Tests: 15–20 new test cases
• Files: src/bounded-execution/finite-disclosure.test.ts (new or expand)

2. Increase network-reservation.ts fallback path coverage

• Impact: Backup reservation logic for microVM network namespace conflicts
• Action: Add integration tests for:
  • Network pool exhaustion scenarios
  • Port binding conflicts (port already in use)
  • iptables rule application failures
  • Cleanup and rollback on failure
• Estimated Tests: 8–12 new test cases
• Files: src/microvm/network-reservation.test.ts

🟡 MEDIUM PRIORITY

3. Exercise runtime-preflight.ts conditional branches

• Impact: Early validation of enclave environment (kernel, Landlock, seccomp)
• Action: Test the gap between 100% function and 66.66% statement coverage:
  • Preflight failure conditions (missing capabilities, unsupported kernel version)
  • Partial capability support (e.g., Landlock without seccomp)
  • Recovery/fallback behaviors
• Estimated Tests: 6–10 new test cases
• Files: src/enclave/runtime-preflight.test.ts

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Overall Assessment: The firewall's core security perimeter (squid, iptables, docker-manager) is production-ready with near-complete test coverage. Recent additions to the enclave system (#8217, #8172, #8173) introduce new complexity that requires focused testing effort. Addressing the three priority items above will bring the critical path to ≥90% coverage and close information-disclosure risks in the finite-disclosure protocol.

Generated by Test Coverage Reporter · copilot · sum00 · 16.9 AIC · ⊞ 5.4K · ◷

• expires on Sep 13, 2026, 6:46 PM UTC