add sol-coverage

.gitignore

@@ -96,3 +96,5 @@ typings/
 
 ERC20Tornado_flat.sol
 ETHTornado_flat.sol
+
+coverage.json

.prettierignore

@@ -5,3 +5,5 @@ contracts/Verifier.sol
 scripts/ganacheHelper.js
 cli.js
 index.js
+coverage
+coverage.json

README.md

@@ -143,6 +143,30 @@ and @jbaylina for awesome [Circom](https://github.com/iden3/circom) & [Websnark]
 1. `npm run migrate:dev`
 1. `node minimal-demo.js`
 
+## Run tests/coverage
+
+Prepare test environment:
+
+```
+   yarn install
+   yarn download
+   cp .env.example .env
+   npx ganache-cli > /dev/null &
+   npm run migrate:dev
+```
+
+Run tests:
+
+```
+   yarn test
+```
+
+Run coverage:
+
+```
+   yarn coverage
+```
+
 ## Emulate MPC trusted setup ceremony
 
 ```bash

package.json

@@ -24,7 +24,8 @@
     "prettier:fix": "prettier --write . --config .prettierrc",
     "lint": "yarn eslint && yarn prettier:check",
     "flat": "npx truffle-flattener contracts/ETHTornado.sol > ETHTornado_flat.sol && npx truffle-flattener contracts/ERC20Tornado.sol > ERC20Tornado_flat.sol",
-    "download": "node scripts/downloadKeys.js"
+    "download": "node scripts/downloadKeys.js",
+    "coverage": "yarn truffle run coverage"
   },
   "keywords": [],
   "author": "",
@@ -57,6 +58,7 @@
     "truffle-flattener": "^1.4.2",
     "web3": "^1.3.4",
     "web3-utils": "^1.3.4",
-    "websnark": "git+https://github.com/tornadocash/websnark.git#4c0af6a8b65aabea3c09f377f63c44e7a58afa6d"
+    "websnark": "git+https://github.com/tornadocash/websnark.git#4c0af6a8b65aabea3c09f377f63c44e7a58afa6d",
+    "solidity-coverage": "^0.7.20"
   }
 }

truffle-config.js

@@ -93,4 +93,6 @@ module.exports = {
       ],
     },
   },
+
+  plugins: ['solidity-coverage'],
 }