Dash Platform GUI — live testnet end-to-end harness

Developer tooling that exercises Dash Core's --enable-platform-gui platform client against live Dash testnet Platform, end to end. It originally lived in the dash tree at contrib/devtools/platform-e2e and was moved to its own repository; it is not built by Dash Core's build system or CI. The C++ drivers compile against a dash checkout built with --enable-platform-gui — run the build commands below from the root of that checkout, with this repository cloned alongside.

The harness:

1. faucet.py — funds a testnet address by driving the faucet at faucet.thepasta.org in a headless browser (the page solves its own Cap.js proof-of-work). Requires pip install playwright && playwright install chromium.
2. make_assetlock.py — builds, funds, signs and broadcasts a TRANSACTION_ASSET_LOCK on testnet via a synced dashd's RPC, and waits for its InstantSend lock. Reuses the functional-test serialization classes.
3. e2e.cpp — the actual end-to-end driver. Using only the platform client library (src/platform/statetransitions.* + src/platform/transport/*) and libbitcoin key/crypto, it:
   • generates the identity funding key and identity authentication keys,
   • creates the asset lock (via make_assetlock.py),
   • builds and broadcasts an IdentityCreateTransition (Instant asset lock proof) to a testnet evonode over gRPC-Web,
   • waits for the identity to confirm,
   • builds and broadcasts DPNS preorder then domain documents, and
   • resolves the registered username back to the identity.

Result

This harness has registered real identities and usernames on Dash testnet. Example run (evonode 68.67.122.25:1443, Platform/DAPI v4.0.0):

identity 6ed0631afd75e846fd527761ca48c322553fece191bf2b96889f7ff6afdc7be8
registered username 'qte2e8df49727' on testnet

The identity was independently re-confirmed (with prove=true GroveDB proofs) from unrelated evonodes 206.245.167.63 and 68.67.122.6, proving the state transition construction, signing, and transport are correct against live Platform — not just self-consistent.

Building the driver

MBED=depends/<host-triplet>
clang++ -std=c++20 -DHAVE_CONFIG_H -I src -I src/config -I src/univalue/include \
  -I src/secp256k1/include -I "$MBED/include" \
  -isystem src/dashbls/include -isystem src/dashbls/depends/relic/include \
  ../dash-platform-e2e/e2e.cpp \
  src/libdash_platform.a src/libbitcoin_common.a src/libbitcoin_consensus.a \
  src/libbitcoin_util.a src/crypto/.libs/libbitcoin_crypto_base.a \
  src/.libs/libunivalue.a src/secp256k1/.libs/libsecp256k1.a \
  src/dashbls/.libs/libdashbls.a src/dashbls/.libs/librelic.a \
  <repeat the archives once for static link order> \
  -L "$MBED/lib" -lmbedtls -lmbedx509 -lmbedcrypto -lgmp -o /tmp/e2e
/tmp/e2e <evonode-ip> [username]