test(subxt-tests): integration test for substrate using subxt

Signed-off-by: Raymond Yeh <extraymond@gmail.com>

.github/workflows/test.yml

@@ -6,6 +6,10 @@ on:
   pull_request:
   workflow_dispatch:
 
+# FIXME: currently needed to bypass a transient dependency using nightly feature
+env:
+ RUSTC_BOOTSTRAP: 1
+
 jobs:
   repolinter:
     name: Repolinter
@@ -80,7 +84,8 @@ jobs:
     - uses: actions/upload-artifact@v3.1.0
       with:
         name: solang-linux-x86-64
-        path: ./target/debug/solang
+        path: ./target/debug/solang 
+
 
   linux-arm:
     name: Linux Arm
@@ -337,6 +342,38 @@ jobs:
       if: always()
       run: docker kill ${{steps.substrate.outputs.id}}
 
+  substrate-subxt:
+    name: Substrate Integration test with subxt
+    runs-on: ubuntu-20.04
+    needs: linux-x86-64
+    steps:
+    - name: Checkout sources
+      uses: actions/checkout@v2
+      # We can't run substrate as a github actions service, since it requires
+      # command line arguments. See https://github.com/actions/runner/pull/1152
+    - name: Start substrate
+      run: docker run -d -p 9944:9944 paritytech/contracts-ci-linux:production substrate-contracts-node --dev --ws-external
+    - uses: actions/download-artifact@master
+      with:
+        name: solang-linux-x86-64
+        path: bin
+    - run: |
+        chmod 755 ./bin/solang
+        echo "$(pwd)/bin" >> $GITHUB_PATH
+    - name: Install latest rust toolchain
+      uses: actions-rs/toolchain@v1
+      with:
+        toolchain: stable
+        default: true
+        override: true   
+    - run: solang compile --target substrate ../substrate/*.sol -o ./contracts/
+      working-directory: ./integration/subxt-tests
+    - run: solang compile --target substrate ../substrate/test/*.sol -o ./contracts/
+      working-directory: ./integration/subxt-tests
+    - name: Deploy and test contracts
+      run: cargo test -- --test-threads=1
+      working-directory: ./integration/subxt-tests
+
   vscode:
     name: Visual Code Extension
     runs-on: solang-ubuntu-latest

integration/substrate/createpair.sol

@@ -0,0 +1,12 @@
+pragma solidity ^0.8.0;
+import "./UniswapV2Pair.sol";
+
+contract Creator {
+    address public pair;
+
+    constructor() public {
+        pair = address(new UniswapV2Pair());
+    }
+
+}
+

integration/subxt-tests/.gitignore

@@ -0,0 +1,2 @@
+contracts/
+target/

integration/subxt-tests/Cargo.toml

@@ -0,0 +1,32 @@
+[package]
+edition = "2021"
+name = "subxt-tests"
+version = "0.1.0"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+anyhow = "1.0.62"
+async-trait = "0.1.57"
+contract-metadata = "2.0.0-alpha.2"
+contract-transcode = "2.0.0-alpha.2"
+hex = "0.4.3"
+ink_metadata = "4.0.0-alpha.1"
+jsonschema = "0.16.0"
+num-bigint = "0.4.3"
+once_cell = "1.14.0"
+pallet-contracts-primitives = {git = "https://github.com/paritytech/substrate.git", branch = "polkadot-v0.9.27"}
+parity-scale-codec = "3.1.5"
+rand = "0.8.5"
+serde_json = "1.0.85"
+sp-core = "6.0.0"
+sp-keyring = "6.0.0"
+subxt = "0.23.0"
+tokio = {version = "1.20.1", features = ["rt-multi-thread", "macros", "time"]}
+
+[workspace]
+members = []
+
+[patch.crates-io]
+ink_metadata = {git = "https://github.com/paritytech/ink.git"}
+