# `skyauth` Test Readiness & Verification Report
## Executive Summary
The complete, multi-tiered End-to-End (E2E) test suite for `skyauth` has been designed, implemented, and verified. As of the **v0.3.0 audit**, the suite comprises **848 passing test cases** (plus 15 doc-tests; 1 further doc example is intentionally `ignore`d) spanning five testing tiers, RFC/lexicon vector suites, formal-verification harnesses, and unit/property suites, achieving a **100% pass rate** across the 25 system features defined in `PRD.md`. Formal verification stands at **69 Verus obligations** (21 standalone + 48 kernel-bound over the shipped `src/kernels/` source) and **8 Kani symbolic harnesses** with a machine-inventoried 57-tag anti-vacuity gate.
All tests follow strict **opaque-box methodology**, deriving expectations directly from authoritative RFC specifications (**RFC 9449, RFC 9126, RFC 7636, RFC 8414, RFC 9728, RFC 7638, RFC 2104**) and standard ATProto OAuth specifications.
---
## Test Inventory & Tier Summary
| Test Suite / Tier | File Path | Total Tests | Passed | Failed | Description |
|---|---|---|---|---|---|
| **Tier 1: Feature Coverage** | `tests/tier1_feature_tests.rs` | 125 | 125 | 0 | $\ge 5$ distinct test cases for every one of the 25 system features. |
| **Tier 2: Boundary & Corner** | `tests/tier2_boundary_tests.rs` | 127 | 127 | 0 | $\ge 5$ edge cases, extreme inputs, and boundary conditions per feature (incl. `expires_in` overflow fail-closed regression). |
| **Tier 3: Pairwise Combinations** | `tests/tier3_pairwise_tests.rs` | 30 | 30 | 0 | Combinatorial interactions across Crypto, DPoP, PKCE, Discovery, PAR, & Sharding. |
| **Tier 4: Realistic Workloads** | `tests/tier4_workload_tests.rs` | 5 | 5 | 0 | Realistic end-to-end login lifecycles, 3-hop auto-nonce recovery, & high concurrency. |
| **Tier 5: Adversarial & Fuzzing** | `tests/tier5_adversarial_tests.rs` | 66 | 66 | 0 | Adversarial DPoP/JWT mutation, SSRF boundary fuzzing, & attack-path rejection (incl. `jti` 256/257 byte boundary). |
| **RFC Vector & Formal Suites** | `tests/*_vectors.rs`, formal verification, stress & challenger suites | 334 | 334 | 0 | Official RFC 7636/9449 vectors, schema compliance, E2E harness rounds, proptest fuzzing, Kani fallback execution, tag-inventory meta-test (20 suites; per-binary counts via `cargo test --test <name>`). |
| **Unit & Property Tests** | `src/` unit modules | 161 | 161 | 0 | Pure-Rust primitives, proptest property testing, PKCS#8 serialization, & kernel unit tests. |
| **Documentation Tests** | rustdoc examples | 15 | 15 | 0 | README/quickstart examples verified via `cargo test --doc` (1 further example intentionally `ignore`d). |
| **Total Test Suite** | **All Targets** | **848 (+15 doc)** | **848** | **0** | **100% Pass Rate (0 Failures, 0 Warnings).** Tier rows: 125 + 127 + 30 + 5 + 66 = 353; integration/vector/formal suites: 334 across 20 binaries; `src/` unit modules: 161. |
---
## 25-Feature Test Mapping Matrix
| ID | Feature Name | Tier 1 Tests | Tier 2 Tests | Tier 3 & 4 Tests | Status |
|---|---|---|---|---|---|
| **F1** | Pure-Rust Crypto Primitives | `test_f1_01`..`05` (5) | `test_b1_01`..`05` (5) | `test_p1_01`, `test_p1_06` | ✅ Verified |
| **F2** | RFC 7638 JWK Thumbprints | `test_f2_01`..`05` (5) | `test_b2_01`..`05` (5) | `test_p1_05`, `test_w4` | ✅ Verified |
| **F3** | RFC 7636 PKCE S256 | `test_f3_01`..`05` (5) | `test_b3_01`..`05` (5) | `test_p1_01`, `test_p1_02`, `test_w1` | ✅ Verified |
| **F4** | RFC 9449 DPoP Proof Engine | `test_f4_01`..`05` (5) | `test_b4_01`..`05` (5) | `test_p1_03`, `test_p5_03` | ✅ Verified |
| **F5** | DPoP Verification & Nonce Cache | `test_f5_01`..`05` (5) | `test_b5_01`..`05` (5) | `test_p3_05`, `test_p3_06`, `test_w4` | ✅ Verified |
| **F6** | Handle Resolution Engine | `test_f6_01`..`05` (5) | `test_b6_01`..`05` (5) | `test_p2_01`, `test_w1` | ✅ Verified |
| **F7** | DID Resolution Engine | `test_f7_01`..`05` (5) | `test_b7_01`..`05` (5) | `test_p2_01`, `test_p2_04`, `test_p2_06` | ✅ Verified |
| **F8** | Service Endpoint Extraction | `test_f8_01`..`05` (5) | `test_b8_01`..`05` (5) | `test_p2_01`, `test_p2_03` | ✅ Verified |
| **F9** | OAuth Metadata Discovery | `test_f9_01`..`05` (5) | `test_b9_01`..`05` (5) | `test_p2_01`, `test_p5_01`, `test_p5_02` | ✅ Verified |
| **F10** | Strict SSRF & Rebinding Filter | `test_f10_01`..`05` (5) | `test_b10_01`..`05` (5) | `test_p2_03` | ✅ Verified |
| **F11** | RFC 9126 PAR Flow | `test_f11_01`..`05` (5) | `test_b11_01`..`05` (5) | `test_p3_01`, `test_p3_02`, `test_w1` | ✅ Verified |
| **F12** | Auth URL Generation | `test_f12_01`..`05` (5) | `test_b12_01`..`05` (5) | `test_p3_03`, `test_w1` | ✅ Verified |
| **F13** | Code Exchange & Token Rotation | `test_f13_01`..`05` (5) | `test_b13_01`..`05` (5) | `test_p3_04`, `test_p4_03`, `test_w1` | ✅ Verified |
| **F14** | Transparent Auto-Nonce Loop | `test_f14_01`..`05` (5) | `test_b14_01`..`05` (5) | `test_p3_01`, `test_p3_04`, `test_w2` | ✅ Verified |
| **F15** | 64-Shard Partitioned State Store | `test_f15_01`..`05` (5) | `test_b15_01`..`05` (5) | `test_p4_01`, `test_p4_04`, `test_w3` | ✅ Verified |
| **F16** | Atomic Single-Use State | `test_f16_01`..`05` (5) | `test_b16_01`..`05` (5) | `test_p4_01`, `test_p4_02`, `test_w3` | ✅ Verified |
| **F17** | Drift-Free TTL Pruning | `test_f17_01`..`05` (5) | `test_b17_01`..`05` (5) | `test_p4_05`, `test_p4_06` | ✅ Verified |
| **F18** | Framework Adapters | `test_f18_01`..`05` (5) | `test_b18_01`..`05` (5) | `test_p1_06`, `test_w1` | ✅ Verified |
| **F19** | Bundled Lexicons & RFC Schemas | `test_f19_01`..`05` (5) | `test_b19_01`..`05` (5) | `test_p5_01`..`04` | ✅ Verified |
| **F20** | Runtime AST Schema Validation | `test_f20_01`..`05` (5) | `test_b20_01`..`05` (5) | `test_p5_01`..`06` | ✅ Verified |
| **F21** | Upstream Spec Drift Verification | `test_f21_01`..`05` (5) | `test_b21_01`..`05` (5) | `test_p5_05`, `test_p5_06` | ✅ Verified |
| **F22** | Executable Formal State Models | `test_f22_01`..`05` (5) | `test_b22_01`..`05` (5) | Formal invariant specs | ✅ Verified |
| **F23** | Kani Anti-Vacuity Checking | `test_f23_01`..`05` (5) | `test_b23_01`..`05` (5) | Model checking covers | ✅ Verified |
| **F24** | E2E Opaque-Box Suite | `test_f24_01`..`05` (5) | `test_b24_01`..`05` (5) | `test_w1`, `test_w2`, `test_w3` | ✅ Verified |
| **F25** | Adversarial Hardening | `test_f25_01`..`05` (5) | `test_b25_01`..`05` (5) | `test_w4`, `test_p2_03` | ✅ Verified |
---
## Quality Gate Verification Results
| Quality Gate | Requirement | Execution Command | Result |
|---|---|---|---|
| **Code Formatting** | Zero diffs against rustfmt standards | `cargo fmt --all -- --check` | **PASS (0 diffs)** |
| **Strict Clippy Guard** | Zero compiler or clippy warnings with `-D warnings` | `cargo clippy --all-targets --all-features -- -D warnings` | **PASS (0 warnings)** |
| **Test Execution** | 100% tests pass across all crates & targets | `cargo test --all-targets --all-features` | **PASS (848/848 passed)** |
| **Documentation Tests** | All rustdoc examples compile & pass | `cargo test --doc --all-features` | **PASS (15/15; 1 intentionally `ignore`d example)** |
| **Code Coverage** | Line coverage ≥ 80% | `cargo llvm-cov --all-features --fail-under-lines 80` | **PASS (87.98% lines)** |
| **Specification Drift** | Local lexicons/schemas match upstream canon | `bash scripts/sync_specs.sh --verify` | **PASS (zero drift; 3 lexicons match upstream)** |
| **Verus Deductive Verification** | All SMT proof obligations discharge | `bash scripts/run_verus.sh` | **PASS (69 verified: 21 standalone + 48 kernel-bound, 0 errors)** |
| **Kani Bounded Model Checking** | All harnesses verified, all anti-vacuity covers reachable | `cargo kani` | **PASS (8/8 harnesses, 0 failures; 57-tag inventory machine-checked)** |
| **Memory & Concurrency** | Zero race conditions, sharded state concurrency | Multi-threaded tests in Tier 1-4 | **PASS** |
| **Opaque-Box Hermeticity**| Zero unmocked external network calls | Ephemeral Wiremock & in-memory harness | **PASS** |
---
## Instructions for Execution
```bash
# Verify entire test suite
cargo test --all-targets --all-features
# Run with verbose capture
cargo test --all-targets --all-features -- --nocapture
```