Ethereum receiver contract

.github/workflows/node.yml

@@ -0,0 +1,22 @@
+name: Node CI
+
+on: [push]
+
+jobs:
+  test:
+    name: EVM Contract Tests
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v1
+    - name: Use Node.js 12.x
+      uses: actions/setup-node@v1
+      with:
+        node-version: 12.x
+    - name: npm install, and test
+      run: |
+        cd contracts/evm-contracts/
+        npm install
+        ./node_modules/.bin/truffle test
+      env:
+        CI: true

Makefile

@@ -40,3 +40,7 @@ run:
 test:
 	@echo "  >  \033[32mRunning tests...\033[0m "
 	./scripts/test.sh
+
+truffle_test:
+	@echo " > \033[32mRunning truffle test... \033[0m "
+	@cd contracts/evm-contracts && node_modules/.bin/truffle test

contracts/evm-contracts/contracts/Migrations.sol

@@ -0,0 +1,23 @@
+pragma solidity >=0.4.21 <0.6.0;
+
+contract Migrations {
+  address public owner;
+  uint public last_completed_migration;
+
+  constructor() public {
+    owner = msg.sender;
+  }
+
+  modifier restricted() {
+    if (msg.sender == owner) _;
+  }
+
+  function setCompleted(uint completed) public restricted {
+    last_completed_migration = completed;
+  }
+
+  function upgrade(address new_address) public restricted {
+    Migrations upgraded = Migrations(new_address);
+    upgraded.setCompleted(last_completed_migration);
+  }
+}