project structure

.babelrc

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+{
+    "presets": [
+      "env",
+      "stage-0"
+    ],
+    "plugins": [
+      [
+        "transform-runtime",
+        {
+          "polyfill": false,
+          "regenerator": true
+        }
+      ]
+    ],
+    "env": {
+      "test": {
+        "sourceMaps": "inline",
+        "retainLines": true
+      }
+    }
+  }

.gitignore

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+node_modules
+dist
+.idea
+data
+/build/
+yarn-error.log
+nodePrivateKey.json
+registryContractAddress.json
+/config/dev.json

lib/waffle.js

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+import Ganache from 'ganache-core';  
+import Web3 from 'web3';
+
+export async function createWeb3() {
+  const web3 = new Web3();  
+  web3.setProvider(Ganache.provider);      
+  return {web3};
+}

package.json

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+{
+    "name": "Waffle",
+    "description": "Sweeter and simpler than truffle.",
+    "version": "0.0.1",
+    "author": "Marek Kirejczyk, Ethworks",
+    "repository": "[email protected]:EthWorks/Waffle.git",
+    "private": true,
+    "license": "MIT",
+    "scripts": {
+      "test": "export NODE_ENV=test && mocha --require babel-register --timeout 10000 --recursive --no-warnings"
+    },
+    "engines": {
+      "node": ">=9.0",
+      "yarn": ">=1.3.2 <2.0.0"
+    },
+    "dependencies": {
+      "web3": "^1.0.0-beta.34"
+    },
+    "devDependencies": {
+      "babel-cli": "^6.26.0",
+      "babel-core": "^6.26.3",
+      "babel-eslint": "^8.2.3",
+      "babel-plugin-transform-builtin-extend": "^1.1.2",
+      "babel-plugin-transform-runtime": "^6.23.0",
+      "babel-polyfill": "^6.26.0",
+      "babel-preset-env": "^1.6.1",
+      "babel-preset-stage-0": "^6.24.1",
+      "chai": "^4.1.2",
+      "chai-as-promised": "^7.1.1",
+      "ganache-core": "^2.1.0",
+      "mocha": "^5.1.1"
+    }
+  }

test/waffle.js

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+import chai from 'chai';
+import chaiAsPromised from 'chai-as-promised';
+import {createWeb3} from '../lib/waffle'
+
+chai.use(chaiAsPromised);
+
+const {expect} = chai;
+
+describe('Waffle', () => {
+  let web3;
+
+  beforeEach(async () => {
+    ({web3} = await createWeb3());
+  });
+
+  it('createWeb3', async () => {
+    expect(web3.utils.randomHex(0)).to.eq('0x');
+  });
+
+});