measure gas

hardhat.config.ts

@@ -1,30 +1 @@
 import "@nomiclabs/hardhat-ethers"
-import "hardhat-gas-reporter"
-
-export default {
-  paths: {
-    artifacts: "build/artifacts",
-    cache: "build/cache",
-    sources: "contracts",
-  },
-  solidity: {
-    compilers: [{ version: "0.8.6" }],
-    settings: {
-      optimizer: {
-        enabled: true,
-        runs: 200,
-      },
-    },
-  },
-  networks: {
-    hardhat: {
-      // allowUnlimitedContractSize: true,
-    },
-  },
-  namedAccounts: {
-    deployer: 0,
-  },
-  mocha: {
-    timeout: 2000000,
-  },
-}

package.json

@@ -38,7 +38,6 @@
     "eslint-plugin-prettier": "^4.0.0",
     "ethers": "^5.5.2",
     "hardhat": "^2.8.0",
-    "hardhat-gas-reporter": "^1.0.6",
     "rimraf": "^3.0.2",
     "solc": "^0.8.11",
     "ts-node": "^10.4.0",

test/e2e.test.ts

@@ -29,28 +29,11 @@ function solCompile(contractSource: string) {
             },
           },
         },
-      }),
-      { import: findImports }
+      })
     )
   )
 }
 
-function findImports(importPath: string) {
-  if (importPath === "@rari-capital/solmate/src/utils/SSTORE2.sol") {
-    return {
-      contents: readFileSync(
-        path.join(__dirname, "../node_modules", importPath),
-        {
-          encoding: "utf8",
-          flag: "r",
-        }
-      ),
-    }
-  } else {
-    return { error: "File not found" }
-  }
-}
-
 describe("end-to-end test suite", () => {
   const cases = readdirSync(path.join(__dirname, "cases"), {
     withFileTypes: true,
@@ -111,9 +94,13 @@ describe("end-to-end test suite", () => {
 
         const [signer] = await ethers.getSigners()
         const factory = new ethers.ContractFactory(abi, bytecode, signer)
+        const deploymentData = factory.interface.encodeDeploy()
+        const gas = await ethers.provider.estimateGas({ data: deploymentData })
         contract = await factory.deploy()
 
-        console.log("Successfully deployed template contract")
+        console.log(
+          `Successfully deployed template contract (gas cost: ${gas})`
+        )
       })
 
       const [, outputExtension] = templateFile.name.split(".")
@@ -146,7 +133,9 @@ describe("end-to-end test suite", () => {
         )
 
         it(`renders correctly for inputs #${inputIndex}`, async () => {
+          const gas = await contract.estimateGas.render(input)
           const result = await contract.render(input)
+          console.log(`Gas for rendering input #${inputIndex}: ${gas}`)
           expect(result).to.equal(expectedOutput)
         })