Adds hardhat for SDK tests

cache/solidity-files-cache.json

@@ -0,0 +1,4 @@
+{
+  "_format": "hh-sol-cache-2",
+  "files": {}
+}

hardhat.config.ts

@@ -0,0 +1,20 @@
+// import "hardhat-jest-plugin";
+// require("hardhat-jest-plugin");
+// import { task } from "hardhat/config";
+import '@nomiclabs/hardhat-waffle';
+// require("@nomiclabs/hardhat-waffle");
+
+/**
+ * @type import('hardhat/config').HardhatUserConfig
+ */
+
+module.exports = {
+  solidity: '0.7.3',
+  networks: {
+    hardhat: {
+      forking: {
+        url: 'https://eth-ropsten.alchemyapi.io/v2/is1WqyAFM1nNFFx2aCozhTep7IxHVNGo',
+      },
+    },
+  },
+};

package.json

@@ -20,7 +20,8 @@
     "analyze": "size-limit --why",
     "prettier": "prettier --write \"**/*.{ts,tsx,js,json,css,yml,md}\"",
     "generate-types": "typechain --out-dir 'src/contracts' --target=ethers-v5 'src/abis/**/*.json'",
-    "typecheck": "tsc --pretty --noEmit"
+    "typecheck": "tsc --pretty --noEmit",
+    "test:unit": "hardhat test test/**/*.unit.ts --tsconfig tsconfig-hardhat.json "
   },
   "peerDependencies": {},
   "husky": {
@@ -48,13 +49,22 @@
     }
   ],
   "devDependencies": {
+    "@nomiclabs/hardhat-ethers": "^2.0.4",
+    "@nomiclabs/hardhat-waffle": "^2.0.2",
     "@size-limit/preset-small-lib": "7.0.5",
     "@typechain/ethers-v5": "^9.0.0",
+    "@types/chai": "^4.3.0",
     "@types/lodash": "^4.14.178",
+    "@types/mocha": "^9.1.0",
+    "@types/node": "^17.0.15",
     "@types/uuid": "^8.3.4",
+    "chai": "^4.3.6",
+    "ethereum-waffle": "^3.4.0",
+    "hardhat": "^2.8.3",
     "husky": "^7.0.2",
     "prettier": "^2.5.1",
     "size-limit": "7.0.5",
+    "ts-node": "^10.4.0",
     "tsdx": "^0.14.1",
     "tslib": "^2.3.1",
     "typechain": "^7.0.0",
@@ -71,6 +81,7 @@
     "date-fns": "^2.28.0",
     "ethers": "^5.5.4",
     "from-exponential": "^1.1.1",
+    "hardhat-jest-plugin": "^0.0.6",
     "lodash": "^4.17.21",
     "lodash-es": "^4.17.21",
     "tiny-invariant": "^1.2.0",

test/truffle/example.unit.ts

@@ -0,0 +1,18 @@
+import { ethers } from 'hardhat';
+import { Signer } from 'ethers';
+import { expect } from 'chai';
+describe('Token', function () {
+  let accounts: Signer[];
+
+  beforeEach(async function () {
+    accounts = await ethers.getSigners();
+  });
+
+  it('should do something right', async function () {
+    // Do something with the accounts
+    const addy = await accounts[0].getAddress();
+    expect(addy.toLowerCase()).equal(
+      '0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266'.toLowerCase()
+    );
+  });
+});

test/v4/fees.test.ts

@@ -37,23 +37,23 @@ const nftSwapperMaker = new NftSwapV4(
 // const nftSwapperTaker = new NftSwap(TAKER_PROVIDER as any, 4);
 
 const MAKER_ASSET: SwappableAsset = {
-  type: 'ERC20',
-  tokenAddress: DAI_TOKEN_ADDRESS_TESTNET,
-  amount: '420000000000000', // 1 USDC
-};
-
-const TAKER_ASSET: SwappableAsset = {
   type: 'ERC721',
   tokenAddress: TEST_NFT_CONTRACT_ADDRESS,
   tokenId: '11045',
 };
 
+const TAKER_ASSET: SwappableAsset = {
+  type: 'ERC20',
+  tokenAddress: DAI_TOKEN_ADDRESS_TESTNET,
+  amount: '420000000000000', // 1 USDC
+};
+
 describe('NFTSwapV4', () => {
   it.only('fees', async () => {
     // NOTE(johnrjj) - Assumes USDC and DAI are already approved w/ the ExchangeProxy
     const v4Erc721Order = nftSwapperMaker.buildOrder(
-      TAKER_ASSET,
       MAKER_ASSET,
+      TAKER_ASSET,
       MAKER_WALLET_ADDRESS,
       {
         fees: [
@@ -63,10 +63,6 @@ describe('NFTSwapV4', () => {
           },
         ],
       }
-      // {
-      //   // Fix dates and salt so we have reproducible tests
-      //   expiration: new Date(3000, 10, 1),
-      // }
     );
 
     // console.log('v4Erc721Order.nonce', v4Erc721Order.nonce.toString());

tsconfig-hardhat.json

@@ -0,0 +1,38 @@
+{
+  // see https://www.typescriptlang.org/tsconfig to better understand tsconfigs
+  "include": ["src", "types"],
+  "files": ["hardhat.config.ts"],
+  "compilerOptions": {
+    "module": "commonjs",
+    "lib": ["dom", "esnext"],
+    "importHelpers": true,
+    // output .d.ts declaration files for consumers
+    "declaration": true,
+    // output .js.map sourcemap files for consumers
+    "sourceMap": true,
+    // match output dir to input dir. e.g. dist/index instead of dist/src/index
+    "rootDir": "./src",
+    // stricter type-checking for stronger correctness. Recommended by TS
+    "strict": true,
+    // linter checks for common issues
+    "noImplicitReturns": true,
+    "noFallthroughCasesInSwitch": true,
+    // noUnused* overlap with @typescript-eslint/no-unused-vars, can disable if duplicative
+    "noUnusedLocals": false,
+    "noUnusedParameters": false,
+    // use Node's module resolution algorithm, instead of the legacy TS one
+    "moduleResolution": "node",
+    // transpile JSX to React.createElement
+    "jsx": "react",
+    // interop between ESM and CJS modules. Recommended by TS
+    "esModuleInterop": true,
+    // significant perf increase by skipping checking .d.ts files, particularly those in node_modules. Recommended by TS
+    "skipLibCheck": true,
+    // error out if import and file system have a casing mismatch. Recommended by TS
+    "forceConsistentCasingInFileNames": true,
+    // `tsdx build` ignores this option, but it is commonly used when type-checking separately with `tsc`
+    "noEmit": true,
+    // Enabled for addresses.json
+    "resolveJsonModule": true
+  }
+}