Add Less 4 tests too

2 files changed, 12 insertions, 0 deletions

diff --git a/test/lib/result.js b/test/lib/result.js
index 870f755..1883b6a 100644
--- a/test/lib/result.js
+++ b/test/lib/result.js
@@ -7,6 +7,7 @@ const prettier = require('prettier');
 const libSass = require('node-sass');
 const dartSass = require('sass');
 const less = require('less');
+const less4 = require('less4');
 const stylus = require('stylus');
 
 // Postcss
@@ -54,6 +55,16 @@ module.exports = {
     });
   },
 
+  // Return parsed css
+  less4: id => {
+    return less4.render(getFileContent('less', id, 'less'), {
+      paths: [path.join(__dirname, '../less')],
+      syncImport: true
+    }).then(result => {
+      return format(result.css);
+    });
+  },
+
   stylus: id => {
     let formattedCSS = '';
     stylus.render(getFileContent('stylus', id, 'styl'), {
diff --git a/test/test.js b/test/test.js
index 19387f4..21c8190 100644
--- a/test/test.js
+++ b/test/test.js
@@ -8,6 +8,7 @@ const tests = require('./tests.json');
 
 const styles = [
   'Less',
+  'Less4',
   'LibSass',
   'DartSass',
   'Stylus',