Unit test copying project into env (#39)

Author: cgewecke

test/cli.js

@@ -180,6 +180,29 @@ describe('cli', () => {
     collectGarbage();
   });
 
+  it('tests require assets outside of test folder: should generate coverage, cleanup & exit(0)', () => {
+    // Directory should be clean
+    assert(pathExists('./coverage') === false, 'should start without: coverage');
+    assert(pathExists('./coverage.json') === false, 'should start without: coverage.json');
+
+    // Run script (exits 0);
+    mock.install('Simple.sol', 'requires-externally.js', config);
+    shell.exec(script);
+    assert(shell.error() === null, 'script should not error');
+
+    // Directory should have coverage report
+    assert(pathExists('./coverage') === true, 'script should gen coverage folder');
+    assert(pathExists('./coverage.json') === true, 'script should gen coverage.json');
+
+    // Coverage should be real.
+    // This test is tightly bound to the function names in Simple.sol
+    const produced = JSON.parse(fs.readFileSync('./coverage.json', 'utf8'));
+    const path = Object.keys(produced)[0];
+    assert(produced[path].fnMap['1'].name === 'test', 'coverage.json should map "test"');
+    assert(produced[path].fnMap['2'].name === 'getX', 'coverage.json should map "getX"');
+    collectGarbage();
+  });
+
   it('contract only uses .call: should generate coverage, cleanup & exit(0)', () => {
     // Run against contract that only uses method.call.
     assert(pathExists('./coverage') === false, 'should start without: coverage');

test/cli/requires-externally.js

@@ -0,0 +1,17 @@
+/* eslint-env node, mocha */
+/* global artifacts, contract, assert */
+
+const asset = require('../assets/asset.js');
+
+const Simple = artifacts.require('./Simple.sol');
+
+contract('Simple', () => {
+  it('should be able to require an external asset', () => {
+    let simple;
+    return Simple.deployed().then(instance => {
+      simple = instance;
+      assert.equal(asset.value, true);
+      return simple.test(5); // Make sure we generate an event;
+    });
+  });
+});

test/util/mockTruffle.js

@@ -29,6 +29,9 @@ module.exports.install = function install(contract, test, config, _trufflejs) {
       deployer.deploy(contract);
     };`;
 
+  // Mock external asset
+  const asset = 'module.exports = { value: true };';
+
   // Mock truffle.js
   const trufflejs = _trufflejs ||
 
@@ -46,6 +49,8 @@ module.exports.install = function install(contract, test, config, _trufflejs) {
   shell.mkdir('./mock');
   shell.mkdir('./mock/contracts');
   shell.mkdir('./mock/migrations');
+  shell.mkdir('./mock/assets');
+  shell.mkdir('./mock/node_modules');
   shell.mkdir('./mock/test');
 
   if (Array.isArray(contract)) {
@@ -60,15 +65,15 @@ module.exports.install = function install(contract, test, config, _trufflejs) {
   fs.writeFileSync('./mock/migrations/1_initial_migration.js', initialMigration);
   fs.writeFileSync('./mock/migrations/2_deploy_contracts.js', deployContracts);
   fs.writeFileSync('./mock/truffle.js', trufflejs);
+  fs.writeFileSync('./mock/assets/asset.js', asset);
   fs.writeFileSync('./.solcover.js', configjs);
   shell.cp(`./test/cli/${test}`, `./mock/test/${test}`);
 };
 
 /**
- * Installs mock truffle project at ./mock with a single contract
+ * Installs mock truffle project at ./mock with two contracts - one inherits from the other
  * and test specified by the params.
- * @param  {String} contract <contractName.sol> located in /test/sources/cli/
- * @param  {[type]} test     <testName.js> located in /test/cli/
+ * @param  {config} .solcover.js configuration
  */
 module.exports.installInheritanceTest = function installInheritanceTest(config) {
   shell.mkdir('./mock');