Added eslint and mocha test.

.eslintrc

@@ -0,0 +1,23 @@
+{
+	"rules": {
+		"indent": [ 2, "tab", { "SwitchCase": 1 } ],
+		"quotes": [ 2, "single" ],
+		"linebreak-style": [ 2, "unix" ],
+		"semi": [ 2, "always" ],
+		"space-after-keywords": [ 2, "always" ],
+		"space-before-blocks": [ 2, "always" ],
+		"space-before-function-paren": [ 2, "always" ],
+		"no-mixed-spaces-and-tabs": [ 2, "smart-tabs" ],
+		"no-cond-assign": [ 0 ]
+	},
+	"env": {
+		"es6": true,
+		"browser": true,
+		"mocha": true,
+		"node": true
+	},
+	"extends": "eslint:recommended",
+	"ecmaFeatures": {
+		"modules": true
+	}
+}

.gitignore

@@ -1,2 +1,5 @@
+test/.gobble/
+test/dist/
 .DS_Store
 node_modules
+npm-debug.log

README.md

@@ -48,6 +48,19 @@ module.exports = gobble( 'src' ).transform( 'browserify', {
 });
 ```
 
+## Testing
+
+To run a single test:
+
+```bash
+npm test
+```
+
+To run a continuous test that watches the source file and test cases for changes:
+
+```bash
+npm start
+```
 
 ## License
 

index.js

@@ -18,18 +18,6 @@ function ensureArray ( thing ) {
 	return thing;
 }
 
-function concat ( stream, callback ) {
-	var body = '';
-
-	stream.on( 'data', function ( chunk ) {
-		body += chunk.toString();
-	});
-
-	stream.on( 'end', function () {
-		callback( body );
-	});
-}
-
 function cacheDependency ( cache, originalDep, inputdir ) {
 	var dep = {};
 	Object.keys( originalDep ).forEach( function ( key ) {
@@ -154,7 +142,7 @@ module.exports = function browserify ( inputdir, outputdir, options, callback )
 		// incorrect, as browsers (and other sourcemap tools) will assume that the URL
 		// is for the bundle's own map, whether or not there is one. So we remove them,
 		// and store the value of the last one in case we need to process it
-		bundle = bundle.replace( SOURCEMAP_COMMENT, function ( match, url, a ) {
+		bundle = bundle.replace( SOURCEMAP_COMMENT, function ( match, url ) {
 			lastSourceMappingURL = url;
 			return '';
 		});

package.json

@@ -5,6 +5,11 @@
   "author": "Rich Harris",
   "license": "MIT",
   "repository": "https://github.com/gobblejs/gobble-browserify",
+  "scripts": {
+    "lint": "eslint index.js test/",
+    "start": "npm run -s test; chokidar 'index.js' 'test/test.js' -i 'test/.gobble' -i 'test/dist' -c 'npm run -s test'",
+    "test": "mocha test/test.js"
+  },
   "dependencies": {
     "browserify": "^10.1.0"
   },
@@ -13,5 +18,15 @@
   ],
   "files": [
     "index.js"
-  ]
+  ],
+  "devDependencies": {
+    "chai": "^3.4.0",
+    "chokidar-cli": "^1.1.1",
+    "eslint": "^1.8.0",
+    "eslint-cli": "^0.2.0",
+    "gobble": "^0.10.2",
+    "mocha": "^2.3.3",
+    "sander": "^0.4.0",
+    "source-map": "^0.5.3"
+  }
 }

test/fixtures/local/foo.js

@@ -0,0 +1,2 @@
+// this is the required script
+module.exports = 'foo';

test/fixtures/local/index.bundle.js

@@ -0,0 +1,4 @@
+// this is the entry bundle
+var foo = require('./foo');
+
+module.exports = foo === 'foo'; // should export true

test/test.js

@@ -0,0 +1,70 @@
+// var assert = require( 'assert' );
+var gobble = require( 'gobble' );
+var gobbleBrowserify = require( '../' );
+var path = require( 'path' );
+var sander = require( 'sander' );
+var sourceMap = require( 'source-map' );
+require( 'chai' ).should();
+
+const buildConfig = {
+	dest: path.resolve( __dirname, 'dist' ),
+	gobbledir: path.resolve( __dirname, '.gobble' ),
+	force: true
+};
+
+/**
+ * Returns an absolute path to a fixture directory / file
+ *
+ * @param {String} relativePath path relative to `'fixtures/'`
+ * @param {String}
+ */
+function fixturePath ( relativePath ) {
+	return path.join( __dirname, 'fixtures', relativePath );
+}
+/**
+ * Returns an absolute path to a gobble compiled directory / file
+ *
+ * @param {String} relativePath path relative to `buildConfig.dest`
+ * @param {String}
+ */
+function outputPath ( relativePath ) {
+	return path.join( buildConfig.dest, relativePath );
+}
+
+afterEach( function () {
+	// delete output files
+	return sander.Promise.all([
+		sander.rimraf( buildConfig.dest ),
+		sander.rimraf( buildConfig.gobbledir )
+	]);
+});
+
+describe( 'when used with local dependencies', function () {
+	beforeEach( function () {
+		return gobble( fixturePath( 'local' ) )
+			.transform( gobbleBrowserify, {
+				entries: 'index.bundle.js',
+				dest: 'local.js',
+				standalone: 'local'
+			} )
+			.build( buildConfig );
+	});
+
+	it( 'should resolve local dependencies', function () {
+		require( outputPath( 'local.js' ) ).should.equal( true );
+	});
+
+	it( 'should generate correct sourcemap', function () {
+		return sander.readFile( outputPath( 'local.js.map' ) )
+			.then( function ( sourcemap ) {
+				var consumer = new sourceMap.SourceMapConsumer( JSON.parse( sourcemap ) );
+				var originalPosition = consumer.originalPositionFor( {
+					line: 3,
+					column: 1
+				});
+
+				originalPosition.source.should.match( /foo\.js$/ );
+				originalPosition.line.should.equal( 2 );
+			});
+	});
+});