update tests for latest AVA version

Author: sindresorhus

package.json

@@ -18,7 +18,7 @@
     "node": ">=0.10.0"
   },
   "scripts": {
-    "test": "xo && node test.js"
+    "test": "xo && ava"
   },
   "files": [
     "index.js"
@@ -51,7 +51,7 @@
     "ansi-regex": "^2.0.0"
   },
   "devDependencies": {
-    "ava": "0.0.4",
+    "ava": "*",
     "xo": "*"
   }
 }

test.js

@@ -1,9 +1,7 @@
-'use strict';
-var test = require('ava');
-var hasAnsi = require('./');
+import test from 'ava';
+import m from './';
 
-test(function (t) {
-	t.assert(hasAnsi('foo\u001b[4mcake\u001b[0m'));
-	t.assert(!hasAnsi('cake'));
-	t.end();
+test(t => {
+	t.true(m('foo\u001b[4mcake\u001b[0m'));
+	t.false(m('cake'));
 });