# ACP Integration Testing Strategy
## Overview
This document outlines a comprehensive testing strategy for the Agentic Commerce Protocol (ACP) integration in the agentic-payments crate. The strategy covers unit tests, integration tests, conformance tests, performance benchmarks, and security testing.
## Testing Principles
1. **Test-Driven Development (TDD)**: Write tests before implementation
2. **High Coverage**: Target >90% code coverage for new ACP code
3. **Fast Feedback**: Unit tests run in <5 seconds
4. **Isolation**: Tests don't depend on external services
5. **Reproducibility**: Deterministic test results
6. **Backward Compatibility**: All existing AP2 tests must pass
## Test Pyramid
```
┌──────────┐
│ E2E │ 5% - Conformance, OpenAI tests
└──────────┘
┌──────────────┐
│ Integration │ 25% - Multi-component tests
└──────────────┘
┌──────────────────┐
│ Unit Tests │ 70% - Individual components
└──────────────────┘
```
## Test Categories
### 1. Unit Tests (70% of tests)
#### Objectives
- Test individual functions and types
- Fast execution (<1ms per test)
- No external dependencies
- High code coverage
#### Coverage by Module
**ACP Checkout Module** (`src/acp/checkout.rs`):
```rust
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_checkout_creation() {
let request = CheckoutRequest {
idempotency_key: "test_123".to_string(),
items: vec![
OrderItem {
product_id: "prod_123".to_string(),
quantity: 2,
price: 1999,
}
],
shipping_address: None,
metadata: HashMap::new(),
};
let checkout = CheckoutResponse::from_request(request, "checkout_456");
assert_eq!(checkout.checkout_id, "checkout_456");
assert_eq!(checkout.state, CheckoutState::Pending);
assert_eq!(checkout.total_amount, 3998);
}
#[test]
fn test_checkout_state_transitions() {
let mut checkout = create_test_checkout();
// Valid transitions
assert!(checkout.transition_to(CheckoutState::Processing).is_ok());
assert!(checkout.transition_to(CheckoutState::Completed).is_ok());
// Invalid transitions
checkout.state = CheckoutState::Completed;
assert!(checkout.transition_to(CheckoutState::Pending).is_err());
}
#[test]
fn test_checkout_expiration() {
let mut checkout = create_test_checkout();
checkout.expires_at = Utc::now().timestamp() - 3600; // Expired 1 hour ago
assert!(checkout.is_expired());
assert_eq!(checkout.state, CheckoutState::Expired);
}
#[test]
fn test_idempotency_key_validation() {
// Valid keys
assert!(validate_idempotency_key("valid_key_123").is_ok());
assert!(validate_idempotency_key("another-valid-key").is_ok());
// Invalid keys
assert!(validate_idempotency_key("").is_err());
assert!(validate_idempotency_key("a").is_err()); // Too short
assert!(validate_idempotency_key(&"x".repeat(300)).is_err()); // Too long
}
}
```
**Shared Payment Token Module** (`src/acp/spt.rs`):
```rust
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_spt_generation() {
let signing_key = SigningKey::generate(&mut OsRng);
let config = SptConfig {
merchant_id: "merchant_123".to_string(),
amount_limit: Some(10000),
currency: "USD".to_string(),
ttl_seconds: 3600,
scope: vec![TokenScope::Charge],
metadata: HashMap::new(),
};
let spt = SharedPaymentToken::generate(
"pm_test_card".to_string(),
"merchant_123".to_string(),
config,
&signing_key,
).unwrap();
assert!(spt.token_id.starts_with("spt_"));
assert_eq!(spt.merchant_id, "merchant_123");
assert_eq!(spt.amount_limit, Some(10000));
assert!(!spt.signature.is_empty());
}
#[test]
fn test_spt_validation() {
let spt = create_test_spt(Some(5000), 3600);
// Valid charge
assert!(spt.validate(4000).is_ok());
// Exceeds limit
assert!(spt.validate(6000).is_err());
}
#[test]
fn test_spt_expiration() {
let spt = create_test_spt(Some(10000), -3600); // Expired 1 hour ago
assert!(spt.validate(5000).is_err());
assert!(matches!(spt.validate(5000).unwrap_err(), Error::TokenExpired));
}
#[test]
fn test_spt_signature_verification() {
let signing_key = SigningKey::generate(&mut OsRng);
let mut spt = create_signed_spt(&signing_key);
// Valid signature
assert!(spt.verify_signature().is_ok());
// Tampered data
spt.amount_limit = Some(999999);
assert!(spt.verify_signature().is_err());
}
#[test]
fn test_spt_scope_validation() {
let spt = SharedPaymentToken {
scope: vec![TokenScope::Charge],
..create_test_spt(None, 3600)
};
assert!(spt.has_scope(&TokenScope::Charge));
assert!(!spt.has_scope(&TokenScope::Refund));
}
}
```
**Protocol Router Module** (`src/protocol/router.rs`):
```rust
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_protocol_detection_ap2() {
let request = PaymentRequest {
intent_mandate: Some(create_test_mandate()),
shared_payment_token: None,
..Default::default()
};
let router = ProtocolRouter::new();
let detected = router.detect_protocol(&request).unwrap();
assert_eq!(detected, Protocol::AP2);
}
#[test]
fn test_protocol_detection_acp() {
let request = PaymentRequest {
shared_payment_token: Some(create_test_spt()),
intent_mandate: None,
..Default::default()
};
let router = ProtocolRouter::new();
let detected = router.detect_protocol(&request).unwrap();
assert_eq!(detected, Protocol::ACP);
}
#[test]
fn test_protocol_routing() {
let router = ProtocolRouter::builder()
.with_ap2_handler(MockAp2Handler::new())
.with_acp_handler(MockAcpHandler::new())
.build();
let ap2_request = create_ap2_request();
let result = router.route_payment(ap2_request).await.unwrap();
assert!(matches!(result.protocol_used, Protocol::AP2));
let acp_request = create_acp_request();
let result = router.route_payment(acp_request).await.unwrap();
assert!(matches!(result.protocol_used, Protocol::ACP));
}
#[test]
fn test_unknown_protocol_error() {
let request = PaymentRequest::default(); // No protocol indicators
let router = ProtocolRouter::new();
let result = router.detect_protocol(&request);
assert!(result.is_err());
assert!(matches!(result.unwrap_err(), Error::UnknownProtocol));
}
}
```
**Merchant Management** (`src/acp/merchant.rs`):
```rust
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_api_key_generation() {
let api_key = ApiKey::generate("Production Key", vec![Permission::CreateCheckout]);
assert!(api_key.key_id.starts_with("ak_"));
assert!(!api_key.key_hash.is_empty());
assert_eq!(api_key.name, "Production Key");
assert!(api_key.permissions.contains(&Permission::CreateCheckout));
}
#[test]
fn test_api_key_hashing() {
let plaintext_key = "sk_test_1234567890";
let hash1 = ApiKey::hash_key(plaintext_key).unwrap();
let hash2 = ApiKey::hash_key(plaintext_key).unwrap();
// Different hashes (salt)
assert_ne!(hash1, hash2);
// Both verify correctly
assert!(ApiKey::verify_key(plaintext_key, &hash1).unwrap());
assert!(ApiKey::verify_key(plaintext_key, &hash2).unwrap());
}
#[test]
fn test_merchant_creation() {
let merchant = Merchant::new(
"Test Merchant",
"test@example.com",
"stripe",
);
assert!(merchant.merchant_id.starts_with("mer_"));
assert_eq!(merchant.name, "Test Merchant");
assert_eq!(merchant.email, "test@example.com");
assert_eq!(merchant.psp_provider, "stripe");
}
#[test]
fn test_merchant_permission_check() {
let merchant = create_test_merchant();
assert!(merchant.has_permission(Permission::CreateCheckout));
assert!(!merchant.has_permission(Permission::RefundOrder));
}
}
```
#### Test Utilities
**Mock Objects** (`tests/common/mod.rs`):
```rust
pub mod mocks {
use super::*;
pub struct MockAp2Handler;
#[async_trait]
impl PaymentProtocolHandler for MockAp2Handler {
async fn authorize_payment(
&self,
request: PaymentRequest,
) -> Result<Authorization> {
Ok(Authorization {
authorized: true,
protocol_used: Protocol::AP2,
..Default::default()
})
}
// ... other methods
}
pub struct MockPsp;
#[async_trait]
impl PaymentServiceProvider for MockPsp {
async fn create_spt(
&self,
payment_method: &str,
config: SptConfig,
) -> Result<SharedPaymentToken> {
Ok(create_test_spt())
}
// ... other methods
}
pub struct MockDatabase {
checkouts: Arc<Mutex<HashMap<String, CheckoutResponse>>>,
orders: Arc<Mutex<HashMap<String, Order>>>,
}
impl MockDatabase {
pub fn new() -> Self {
Self {
checkouts: Arc::new(Mutex::new(HashMap::new())),
orders: Arc::new(Mutex::new(HashMap::new())),
}
}
pub async fn insert_checkout(&self, checkout: CheckoutResponse) {
self.checkouts.lock().unwrap().insert(
checkout.checkout_id.clone(),
checkout,
);
}
pub async fn get_checkout(&self, id: &str) -> Option<CheckoutResponse> {
self.checkouts.lock().unwrap().get(id).cloned()
}
}
}
pub mod fixtures {
pub fn create_test_checkout() -> CheckoutResponse {
CheckoutResponse {
checkout_id: "checkout_test_123".to_string(),
state: CheckoutState::Pending,
items: vec![
OrderItem {
product_id: "prod_123".to_string(),
quantity: 1,
price: 1999,
}
],
total_amount: 1999,
currency: "USD".to_string(),
expires_at: Utc::now().timestamp() + 3600,
payment_methods: vec!["card".to_string()],
}
}
pub fn create_test_spt() -> SharedPaymentToken {
SharedPaymentToken {
token_id: "spt_test_123".to_string(),
payment_method: "pm_test_card".to_string(),
merchant_id: "merchant_123".to_string(),
amount_limit: Some(10000),
currency: "USD".to_string(),
expires_at: Utc::now().timestamp() + 3600,
scope: vec![TokenScope::Charge],
metadata: HashMap::new(),
signature: "test_signature".to_string(),
}
}
// ... more fixtures
}
```
---
### 2. Integration Tests (25% of tests)
#### Objectives
- Test interaction between multiple components
- Verify end-to-end workflows
- Database integration testing
- HTTP API testing
#### Test Scenarios
**Complete Checkout Flow** (`tests/integration/checkout_flow.rs`):
```rust
#[tokio::test]
async fn test_complete_checkout_flow() {
// Setup
let app = setup_test_app().await;
let merchant = create_test_merchant(&app).await;
let client = TestClient::new(app.address());
// 1. Create checkout
let create_request = json!({
"idempotency_key": "test_123",
"items": [{
"product_id": "prod_123",
"quantity": 2,
"price": 1999
}]
});
let response = client
.post("/v1/checkout")
.header("Authorization", &merchant.api_key)
.json(&create_request)
.send()
.await
.unwrap();
assert_eq!(response.status(), 201);
let checkout: CheckoutResponse = response.json().await.unwrap();
assert_eq!(checkout.state, CheckoutState::Pending);
assert_eq!(checkout.total_amount, 3998);
// 2. Retrieve checkout
let get_response = client
.get(&format!("/v1/checkout/{}", checkout.checkout_id))
.header("Authorization", &merchant.api_key)
.send()
.await
.unwrap();
assert_eq!(get_response.status(), 200);
// 3. Complete checkout with SPT
let spt = create_test_spt_for_merchant(&merchant);
let complete_request = json!({
"shared_payment_token": spt.token_id
});
let complete_response = client
.post(&format!("/v1/checkout/{}/complete", checkout.checkout_id))
.header("Authorization", &merchant.api_key)
.json(&complete_request)
.send()
.await
.unwrap();
assert_eq!(complete_response.status(), 200);
let completed: CheckoutResponse = complete_response.json().await.unwrap();
assert_eq!(completed.state, CheckoutState::Completed);
// 4. Verify order created
let orders = get_merchant_orders(&app, &merchant).await;
assert_eq!(orders.len(), 1);
assert_eq!(orders[0].checkout_id, checkout.checkout_id);
}
#[tokio::test]
async fn test_idempotency_handling() {
let app = setup_test_app().await;
let merchant = create_test_merchant(&app).await;
let client = TestClient::new(app.address());
let request = json!({
"idempotency_key": "duplicate_test",
"items": [{"product_id": "prod_123", "quantity": 1, "price": 1999}]
});
// First request - creates checkout
let response1 = client
.post("/v1/checkout")
.header("Authorization", &merchant.api_key)
.json(&request)
.send()
.await
.unwrap();
assert_eq!(response1.status(), 201);
let checkout1: CheckoutResponse = response1.json().await.unwrap();
// Second request - returns same checkout
let response2 = client
.post("/v1/checkout")
.header("Authorization", &merchant.api_key)
.json(&request)
.send()
.await
.unwrap();
assert_eq!(response2.status(), 201);
let checkout2: CheckoutResponse = response2.json().await.unwrap();
assert_eq!(checkout1.checkout_id, checkout2.checkout_id);
}
```
**Multi-Protocol Integration** (`tests/integration/protocol_interop.rs`):
```rust
#[tokio::test]
async fn test_ap2_and_acp_coexistence() {
let system = UnifiedPaymentSystem::builder()
.with_ap2_handler(create_ap2_handler())
.with_acp_handler(create_acp_handler())
.build();
// AP2 payment
let ap2_request = create_ap2_payment_request();
let ap2_result = system.process_payment(ap2_request).await.unwrap();
assert_eq!(ap2_result.protocol_used, Protocol::AP2);
// ACP payment
let acp_request = create_acp_payment_request();
let acp_result = system.process_payment(acp_request).await.unwrap();
assert_eq!(acp_result.protocol_used, Protocol::ACP);
// Verify both protocols work independently
assert!(ap2_result.authorized);
assert!(acp_result.authorized);
}
#[tokio::test]
async fn test_credential_translation_ap2_to_acp() {
let translator = ProtocolTranslator::new();
// Create AP2 authorization
let ap2_auth = create_ap2_authorization();
// Translate to ACP checkout
let acp_checkout = translator
.translate_ap2_to_acp(ap2_auth)
.await
.unwrap();
// Verify translation
assert_eq!(acp_checkout.total_amount, ap2_auth.total_amount());
assert_eq!(acp_checkout.currency, ap2_auth.currency);
assert_eq!(acp_checkout.items.len(), ap2_auth.cart_mandate.items.len());
}
```
**Webhook Delivery** (`tests/integration/webhooks.rs`):
```rust
#[tokio::test]
async fn test_webhook_delivery_success() {
// Setup mock webhook receiver
let mock_server = MockServer::start().await;
let webhook_url = mock_server.uri();
Mock::given(method("POST"))
.and(path("/webhooks"))
.respond_with(ResponseTemplate::new(200))
.expect(1)
.mount(&mock_server)
.await;
// Create checkout completion event
let event = WebhookEvent {
event_id: "evt_123".to_string(),
event_type: WebhookEventType::OrderCompleted,
payload: json!({"order_id": "order_123"}),
merchant_id: "merchant_123".to_string(),
created_at: Utc::now(),
};
// Deliver webhook
let worker = WebhookDeliveryWorker::new(webhook_url);
let result = worker.deliver_webhook(event).await;
assert!(result.is_ok());
mock_server.verify().await;
}
#[tokio::test]
async fn test_webhook_retry_on_failure() {
let mock_server = MockServer::start().await;
// First attempt fails
Mock::given(method("POST"))
.respond_with(ResponseTemplate::new(503))
.expect(1)
.mount(&mock_server)
.await;
// Second attempt succeeds
Mock::given(method("POST"))
.respond_with(ResponseTemplate::new(200))
.expect(1)
.mount(&mock_server)
.await;
let event = create_test_webhook_event();
let worker = WebhookDeliveryWorker::new(mock_server.uri());
let result = worker.process_with_retry(event).await;
assert!(result.is_ok());
mock_server.verify().await;
}
```
---
### 3. Conformance Tests (5% of tests)
#### Objectives
- Verify OpenAI ACP specification compliance
- Validate OpenAPI schema conformance
- Test against official conformance suite
**OpenAPI Schema Validation** (`tests/conformance/openapi.rs`):
```rust
#[tokio::test]
async fn test_openapi_schema_validation() {
let app = setup_test_app().await;
let client = TestClient::new(app.address());
// Fetch OpenAPI spec
let spec_response = client
.get("/swagger/openapi.json")
.send()
.await
.unwrap();
assert_eq!(spec_response.status(), 200);
let spec: serde_json::Value = spec_response.json().await.unwrap();
// Validate spec structure
assert_eq!(spec["openapi"], "3.0.0");
assert!(spec["paths"].is_object());
assert!(spec["components"]["schemas"].is_object());
// Validate required endpoints exist
assert!(spec["paths"]["/v1/checkout"].is_object());
assert!(spec["paths"]["/v1/checkout/{id}"].is_object());
}
#[tokio::test]
async fn test_request_response_schema_compliance() {
use openapiv3::OpenAPI;
// Load OpenAPI spec
let spec = load_openapi_spec();
// Test each endpoint
for (path, path_item) in spec.paths.iter() {
if let Some(operation) = &path_item.post {
// Validate request schema
let request_body = operation.request_body.as_ref().unwrap();
validate_request_schema(request_body);
// Validate response schemas
for (_status, response) in operation.responses.responses.iter() {
validate_response_schema(response);
}
}
}
}
```
**ACP Specification Compliance** (`tests/conformance/acp_spec.rs`):
```rust
#[tokio::test]
async fn test_checkout_state_machine_compliance() {
// ACP spec requires specific state transitions
let valid_transitions = vec![
(CheckoutState::Pending, CheckoutState::Processing),
(CheckoutState::Processing, CheckoutState::Completed),
(CheckoutState::Pending, CheckoutState::Cancelled),
(CheckoutState::Pending, CheckoutState::Expired),
];
for (from, to) in valid_transitions {
let mut checkout = create_checkout_in_state(from);
assert!(checkout.transition_to(to).is_ok());
}
// Invalid transitions should fail
let invalid_transitions = vec![
(CheckoutState::Completed, CheckoutState::Pending),
(CheckoutState::Cancelled, CheckoutState::Processing),
];
for (from, to) in invalid_transitions {
let mut checkout = create_checkout_in_state(from);
assert!(checkout.transition_to(to).is_err());
}
}
#[tokio::test]
async fn test_spt_format_compliance() {
let spt = create_test_spt();
// Verify SPT structure matches ACP spec
assert!(spt.token_id.starts_with("spt_"));
assert!(!spt.payment_method.is_empty());
assert!(!spt.merchant_id.is_empty());
assert!(!spt.currency.is_empty());
assert!(spt.expires_at > Utc::now().timestamp());
assert!(!spt.scope.is_empty());
assert!(!spt.signature.is_empty());
}
```
---
### 4. Performance Tests
#### Objectives
- Verify latency targets (<50ms)
- Validate throughput (>5,000 ops/sec)
- Measure protocol routing overhead
- Benchmark WASM performance
**Latency Benchmarks** (`benches/checkout_latency.rs`):
```rust
use criterion::{black_box, criterion_group, criterion_main, Criterion};
fn checkout_creation_benchmark(c: &mut Criterion) {
let runtime = tokio::runtime::Runtime::new().unwrap();
let app = runtime.block_on(setup_test_app());
c.bench_function("checkout_creation", |b| {
b.to_async(&runtime).iter(|| async {
let request = create_test_checkout_request();
let result = app.create_checkout(black_box(request)).await;
black_box(result)
})
});
}
fn spt_validation_benchmark(c: &mut Criterion) {
let spt = create_test_spt();
c.bench_function("spt_validation", |b| {
b.iter(|| {
black_box(spt.validate(5000))
})
});
}
fn protocol_routing_benchmark(c: &mut Criterion) {
let runtime = tokio::runtime::Runtime::new().unwrap();
let router = create_protocol_router();
c.bench_function("protocol_routing", |b| {
b.to_async(&runtime).iter(|| async {
let request = create_mixed_protocol_request();
black_box(router.route_payment(request).await)
})
});
}
criterion_group!(
benches,
checkout_creation_benchmark,
spt_validation_benchmark,
protocol_routing_benchmark
);
criterion_main!(benches);
```
**Throughput Tests** (`tests/performance/throughput.rs`):
```rust
#[tokio::test]
async fn test_checkout_throughput() {
let app = setup_test_app().await;
let concurrent_requests = 1000;
let duration = Duration::from_secs(10);
let start = Instant::now();
let mut handles = vec![];
for _ in 0..concurrent_requests {
let app_clone = app.clone();
let handle = tokio::spawn(async move {
let request = create_test_checkout_request();
app_clone.create_checkout(request).await
});
handles.push(handle);
}
let results = futures::future::join_all(handles).await;
let elapsed = start.elapsed();
let successful = results.iter().filter(|r| r.is_ok()).count();
let throughput = successful as f64 / elapsed.as_secs_f64();
println!("Throughput: {:.2} checkouts/second", throughput);
assert!(throughput > 5000.0, "Throughput below target: {}", throughput);
}
```
---
### 5. Security Tests
#### Objectives
- Validate authentication and authorization
- Test rate limiting
- Verify SPT security properties
- Check for common vulnerabilities
**Authentication Tests** (`tests/security/auth.rs`):
```rust
#[tokio::test]
async fn test_unauthenticated_request_blocked() {
let app = setup_test_app().await;
let client = TestClient::new(app.address());
let response = client
.post("/v1/checkout")
.json(&create_test_checkout_request())
.send()
.await
.unwrap();
assert_eq!(response.status(), 401);
}
#[tokio::test]
async fn test_invalid_api_key_rejected() {
let app = setup_test_app().await;
let client = TestClient::new(app.address());
let response = client
.post("/v1/checkout")
.header("Authorization", "Bearer invalid_key")
.json(&create_test_checkout_request())
.send()
.await
.unwrap();
assert_eq!(response.status(), 401);
}
#[tokio::test]
async fn test_rate_limiting() {
let app = setup_test_app().await;
let client = TestClient::new(app.address());
let api_key = create_test_api_key();
// Exceed rate limit (e.g., 100 requests/minute)
for _ in 0..105 {
let response = client
.post("/v1/checkout")
.header("Authorization", &api_key)
.json(&create_test_checkout_request())
.send()
.await
.unwrap();
if response.status() == 429 {
// Rate limit hit
return;
}
}
panic!("Rate limiting not enforced");
}
```
**SPT Security Tests** (`tests/security/spt.rs`):
```rust
#[test]
fn test_spt_signature_tampering_detected() {
let mut spt = create_signed_spt();
// Tamper with amount
spt.amount_limit = Some(999999);
// Signature should be invalid
assert!(spt.verify_signature().is_err());
}
#[test]
fn test_expired_spt_rejected() {
let mut spt = create_test_spt();
spt.expires_at = Utc::now().timestamp() - 3600;
assert!(spt.validate(5000).is_err());
}
#[test]
fn test_spt_scope_enforcement() {
let spt = SharedPaymentToken {
scope: vec![TokenScope::Charge],
..create_test_spt()
};
// Charge allowed
assert!(spt.can_perform(&TokenScope::Charge));
// Refund not allowed
assert!(!spt.can_perform(&TokenScope::Refund));
}
```
---
## Test Execution Strategy
### Local Development
```bash
# Run all tests
cargo test --all-features
# Run specific test category
cargo test --test integration
cargo test --test conformance
# Run with coverage
cargo tarpaulin --out Html --all-features
# Run benchmarks
cargo bench
```
### Continuous Integration (CI)
```yaml
# .github/workflows/test.yml
name: Tests
on: [push, pull_request]
jobs:
test:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v3
- uses: actions-rs/toolchain@v1
with:
toolchain: stable
- name: Run unit tests
run: cargo test --lib --all-features
- name: Run integration tests
run: cargo test --test integration --all-features
- name: Run conformance tests
run: cargo test --test conformance --all-features
- name: Check code coverage
run: |
cargo install tarpaulin
cargo tarpaulin --out Xml --all-features
bash <(curl -s https://codecov.io/bash)
benchmarks:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v3
- name: Run benchmarks
run: cargo bench --all-features
wasm:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v3
- name: Test WASM build
run: |
cargo install wasm-pack
wasm-pack test --headless --chrome --features wasm-acp
```
---
## Success Criteria
### Coverage Targets
- ✅ Unit tests: >90% line coverage
- ✅ Integration tests: All critical paths covered
- ✅ Conformance tests: 100% OpenAI spec compliance
- ✅ Performance: <50ms p99 latency, >5,000 ops/sec throughput
- ✅ Security: No critical vulnerabilities
### Quality Gates
- ✅ All tests pass before merge
- ✅ No test flakiness (100% deterministic)
- ✅ Backward compatibility: All AP2 tests pass
- ✅ Documentation: Every public API has tests
---
**Document Version**: 1.0
**Last Updated**: 2025-09-29
**Status**: Active - Implementation in Progress