Add test for postcss-nested (issue #19)

package.json

@@ -35,7 +35,8 @@
   "devDependencies": {
     "eslint": "^7.10.0",
     "mocha": "^8.1.3",
-    "postcss": "^8.0.0"
+    "postcss": "^8.0.0",
+    "postcss-nested": "^5.0.5"
   },
   "files": [
     "lib",

test.js

@@ -1,5 +1,6 @@
 const assert = require('assert');
 const postcss = require('postcss');
+const postcssNested = require('postcss-nested');
 const postcssCsso = require('./index.js');
 
 describe('can be used as a postcss plugin', function() {
@@ -61,23 +62,29 @@ describe('edge cases', function() {
             postcssPlugin: 'emptyGenerator',
             Once(root) {
                 const atRule = postcss.atRule({
-                    name: 'test'
+                    name: 'atrule'
                 });
+                const rule = postcss.rule();
+
+                rule.append(postcss.decl({
+                    prop: 'prop'
+                }));
 
                 root.append(atRule);
+                root.append(rule);
             }
         };
 
         return postcss([
             emptyGenerator,
             postcssCsso
         ]).process('').then(function(result) {
-            assert.strictEqual(result.css, '@test;');
+            assert.strictEqual(result.css, '@atrule;');
         });
     });
 });
 
-it('should keep the shape of original postcss nodes', function() {
+it('should keep shape of original postcss nodes', function() {
     const css = '.a { p: 1; } .b { p: 2; }';
     let count = 0;
 
@@ -119,6 +126,15 @@ it('error handling', function() {
     });
 });
 
+it('should work with postcss-nested (issue #19)', function() {
+    return postcss([
+        postcssNested,
+        postcssCsso
+    ])
+        .process('.c { .touch &:hover { color: #ff0000; } }')
+        .then(result => assert.strictEqual(result.css, '.touch .c:hover{color:red}'));
+});
+
 // currently works only is used as linked package
 // TODO: find the way to use csso compress tests
 try {