feat: e2e test optimization and v1 compat tests#8
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…t SDKs Verify the existing v1/v2 auto-detection and routing behavior end-to-end without modifying source code. Covers client payload creation, HTTP header encoding, round-tripper flow, and mixed v1+v2 scheme registration. Python (25 new test cases): - Unit: v1 payload creation (async+sync), auto-adaptive routing, v1 hooks - Integration: parameterized sync/async v1 flow, auto-adaptive routing, HTTP layer - HTTP: v1 handle_402, v1 round-tripper with X-PAYMENT header TypeScript (16 new test cases): - Unit: v1 payload creation, auto-adaptive v1/v2 routing, version isolation - HTTP: v1/v2 header encoding, body parsing, settle response, priority tests
The assets field from PaymentOption was not forwarded to ResourceConfig in buildPaymentRequirementsFromOptions, causing AssetRegistry-based price resolution to never trigger via the HTTP middleware path.
Project only has Python + TypeScript SDKs. Coinbase Go SDK compatibility tests will be added in a separate test directory later.
…runner Previously the hardcoded check at startup required SVM env vars even when running EVM-only tests (e.g. --families=evm). Move validation after scenario filtering so only variables for the actually-tested protocol families are required.
…LU token Migrate all e2e test infrastructure to BSC Testnet (eip155:97) using DHLU token (0x375cADdd2cB68cE82e3D9B075D551067a7b4B816, decimals: 6, EIP712 name="DA HULU", version="1"). DHLU supports EIP-3009, EIP-2612, and ERC-20 approval, enabling all payment transfer methods with a single token. - Update v2 servers (express, hono, next, fastapi, flask) with pre-parsed DHLU price objects (also fixes permit2 endpoints that had extra at wrong level when using $0.001 shorthand) - Update MCP servers (TypeScript, Python) with DHLU price config - Update facilitators (TypeScript, Python) RPC URLs and network IDs - Update clients (fetch, axios, mcp-typescript) chain references - Update legacy servers/clients to use bsc-testnet network name - Update permit2-approval script for BSC Testnet + DHLU
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- solutions.md #7: BSC testnet has no EIP-2612 permit-capable token. Captures why exact_permit_testnet returns 404 and lists the options (Sepolia / custom test token / rely on unit suites), so the next person doesn't rediscover it. - solutions.md #8: integration runner doesn't expand ${VAR:-default}. Captures the os.path.expandvars limitation that caused the testnet scenarios to silently break on a literal fallback string. - testnet/README.md: add "Current status" table with today's verified BSC tx hash as evidence, and a "Gotchas" section linking back to solutions #7 / #8, the tx-hash regex, and the log locations. No code change — just freezing today's testnet run state so future attempts start from known ground. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
This PR optimizes the E2E test suite and adds compatibility tests for the x402 v1/v2 auto-adaptive protocol. It also migrates the test network to BSC Testnet and streamlines the facilitator startup.
Key Changes
.github/workflows/e2e_tests.yml)..gitignoreto better handle E2E test results and local development files.Verification