Silo to silo transfers

.github/workflows/tests.yml

@@ -88,3 +88,17 @@ jobs:
       - name: Test
         run: |
           make test-token-locker
+
+  test-silo-to-silo:
+    runs-on: self-hosted
+    name: Test silo-to-silo
+    steps:
+      - name: Install Foundry
+        uses: foundry-rs/foundry-toolchain@v1        
+      - name: Clone the repository
+        uses: actions/checkout@v2
+        with:
+          submodules: recursive
+      - name: Test
+        run: |
+          make test-token-silo-to-silo

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "silo-to-silo/integration-tests/aurora-contracts-sdk"]
+	path = silo-to-silo/integration-tests/aurora-contracts-sdk
+	url = https://github.com/aurora-is-near/aurora-contracts-sdk.git

Makefile

@@ -46,6 +46,15 @@ test-token-locker:
 	cd token-locker && \
 	cargo test --all
 
+test-token-silo-to-silo:
+	cd silo-to-silo && \
+	yarn && \
+	cd integration-tests && \
+	rustup target add wasm32-unknown-unknown && \
+	export RUSTFLAGS='-C link-arg=-s' && \
+	$(CARGO) build --target wasm32-unknown-unknown --release --manifest-path mock_token/Cargo.toml && \
+	cargo test --all --jobs 4 -- --test-threads 4
+
 # <--
 # For testing purposes only (can be removed at any moment)
 no_icon: res/bridge_token_no_icon.wasm res/bridge_token_factory_no_icon.wasm

silo-to-silo/.gitignore

@@ -0,0 +1,5 @@
+node_modules/
+artifacts/
+cache/
+.env
+contracts/out/*

silo-to-silo/.prettierrc.json

@@ -0,0 +1,14 @@
+{
+    "overrides": [
+      {
+        "files": "*.sol",
+        "options": {
+          "printWidth": 120,
+          "tabWidth": 4,
+          "useTabs": false,
+          "singleQuote": false,
+          "bracketSpacing": false
+        }
+      }
+    ]
+  }

silo-to-silo/configs/aurora-testnet.json

@@ -0,0 +1,7 @@
+{
+    "siloAccountId": "aurora",
+    "nativeTokenAccountId": "aurora",
+    "auroraSdkAddress": "0x425cA8f218784ebE2df347E98c626094B63E7f30",
+    "auroraUtilsAddress": "0xc129336a6995F3b70A7139585403B82098260172",
+    "wNearAddress": "0x4861825E75ab14553E5aF711EbbE6873d369d146"
+}

silo-to-silo/contracts/foundry.toml

@@ -0,0 +1,8 @@
+[profile.default]
+src = 'src'
+out = 'out'
+libs = ['../node_modules', '../integration-tests/aurora-contracts-sdk/aurora-solidity-sdk/lib']
+allow_paths = []
+solc = "0.8.17"
+
+# See more config options https://github.com/foundry-rs/foundry/tree/master/config

silo-to-silo/contracts/src/IEvmErc20.sol

@@ -0,0 +1,8 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+pragma solidity ^0.8.17;
+
+import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
+
+interface IEvmErc20 is IERC20 {
+    function withdrawToNear(bytes memory recipient, uint256 amount) external;
+}