Require Node.js 6

.gitattributes

@@ -1,2 +1 @@
-* text=auto
-*.js text eol=lf
+* text=auto eol=lf

.travis.yml

@@ -1,5 +1,5 @@
 language: node_js
 node_js:
+  - '10'
   - '8'
   - '6'
-  - '4'

index.js

@@ -60,10 +60,11 @@ module.exports = opts => {
 			maxBuffer: HUNDRED_MEGABYTES
 		});
 
-		proc.then(result => {
-			this.emit('_result', result);
-			done();
-		})
+		proc
+			.then(result => {
+				this.emit('_result', result);
+				done();
+			})
 			.catch(err => {
 				this.emit('error', new PluginError('gulp-mocha', err.code > 0 ? 'There were test failures' : err));
 				done();

package.json

@@ -10,7 +10,7 @@
 		"url": "sindresorhus.com"
 	},
 	"engines": {
-		"node": ">=4"
+		"node": ">=6"
 	},
 	"scripts": {
 		"test": "xo && ava"
@@ -35,10 +35,10 @@
 	],
 	"dependencies": {
 		"dargs": "^5.1.0",
-		"execa": "^0.8.0",
+		"execa": "^0.10.0",
 		"mocha": "^5.2.0",
 		"npm-run-path": "^2.0.2",
-		"plugin-error": "^0.1.2",
+		"plugin-error": "^1.0.1",
 		"supports-color": "^5.4.0",
 		"through2": "^2.0.3"
 	},

readme.md

@@ -40,6 +40,8 @@ gulp.task('default', () =>
 
 #### options
 
+Type: `Object`
+
 Options are passed directly to the `mocha` binary, so you can use any its [command-line options](http://mochajs.org/#usage) in a camelCased form. Arrays and key/value objects are correctly converted to the comma separated list format Mocha expects. Listed below are some of the more commonly used options:
 
 

test/test.js

@@ -25,15 +25,15 @@ test('run unit test and fail', async t => {
 	const stream = mocha({suppress: true});
 	const error = pEvent(stream, 'error');
 	stream.end(fixture('fixture-fail.js'));
-	t.regex((await error).stdout, /1 failing/);
+	t.regex((await error).message, /There were test failures/);
 });
 
 test('pass async AssertionError to mocha', async t => {
 	const stream = mocha({suppress: true});
 	const event = pEvent(stream, 'error');
 	stream.end(fixture('fixture-async.js'));
 	const error = await event;
-	t.regex(error.stdout, /throws after timeout|Uncaught AssertionError.*: false == true/);
+	t.regex(error.message, /There were test failures/);
 });
 
 test('require two files', async t => {

utils.js

@@ -1,5 +1,6 @@
 'use strict';
 
+// TODO: Use `Object.entries` when targeting Node.js 8
 function objectEntries(object) {
 	const entries = [];