Ensure local ethereum node has at least 256 blocks

Storage contract cannot be deployed when block height
is less than 256 blocks.

deploy/storage.js

@@ -1,4 +1,4 @@
-module.exports = async ({ deployments, getNamedAccounts }) => {
+async function deployStorage({ deployments, getNamedAccounts }) {
   const token = await deployments.get("TestToken")
   const proofPeriod = 10
   const proofTimeout = 5
@@ -19,5 +19,16 @@ module.exports = async ({ deployments, getNamedAccounts }) => {
   await deployments.deploy("Storage", { args, from: deployer })
 }
 
+async function mine256blocks({ network, ethers }) {
+  if (network.tags.local) {
+    await ethers.provider.send("hardhat_mine", ["0x100"])
+  }
+}
+
+module.exports = async (environment) => {
+  await mine256blocks(environment)
+  await deployStorage(environment)
+}
+
 module.exports.tags = ["Storage"]
 module.exports.dependencies = ["TestToken"]

hardhat.config.js

@@ -5,6 +5,11 @@ require("hardhat-deploy-ethers")
 module.exports = {
   solidity: "0.8.4",
   namedAccounts: {
-    deployer: { default: 0 }
+    deployer: { default: 0 },
-  }
+  },
+  networks: {
+    hardhat: {
+      tags: ["local"],
+    },
+  },
 }

test/Storage.test.js

@@ -1,12 +1,7 @@
 const { expect } = require("chai")
 const { ethers, deployments } = require("hardhat")
 const { exampleRequest, exampleOffer } = require("./examples")
-const {
+const { advanceTime, advanceTimeTo, currentTime } = require("./evm")
-  ensureMinimumBlockHeight,
-  advanceTime,
-  advanceTimeTo,
-  currentTime,
-} = require("./evm")
 const { requestId, offerId } = require("./ids")
 const { periodic } = require("./time")
 
@@ -26,7 +21,6 @@ describe("Storage", function () {
   beforeEach(async function () {
     ;[client, host] = await ethers.getSigners()
 
-    await ensureMinimumBlockHeight(256)
     await deployments.fixture(["TestToken", "Storage"])
     token = await ethers.getContract("TestToken")
     storage = await ethers.getContract("Storage")