Migrate to Hardhat (#2397)

test/helpers/set-gsn-provider.js

@@ -0,0 +1,15 @@
+const { GSNDevProvider } = require('@openzeppelin/gsn-provider');
+
+function setGSNProvider (Contract, accounts) {
+  const baseProvider = Contract.currentProvider;
+  Contract.setProvider(
+    new GSNDevProvider(baseProvider, {
+      txfee: 70,
+      useGSN: false,
+      ownerAddress: accounts[8],
+      relayerAddress: accounts[9],
+    }),
+  );
+};
+
+module.exports = { setGSNProvider };

test/helpers/sign.js

@@ -1,5 +1,3 @@
-const { web3 } = require('@openzeppelin/test-environment');
-
 function toEthSignedMessageHash (messageHex) {
   const messageBuffer = Buffer.from(messageHex.substring(2), 'hex');
   const prefix = Buffer.from(`\u0019Ethereum Signed Message:\n${messageBuffer.length}`);