Add test

Author: thgh

.gitignore

@@ -12,3 +12,4 @@ node_modules
 
 # Build files
 dist
+/test/**/output.*

package.json

@@ -8,6 +8,8 @@
   "scripts": {
     "build": "rollup -c",
     "dev": "rollup -cw",
+    "test:simple": "cd test/simple && rm -f output.* && rollup -c && cmp output.js ../expected.js && cmp output.css expected.css && cd ../..",
+    "test": "npm run test:simple",
     "lint": "prettier rollup.config.js src/**",
     "prepare": "npm run build",
     "prepublish": "npm run build"

test/expected.js

@@ -0,0 +1 @@
+console.log('css imported');

test/input.css

@@ -0,0 +1,4 @@
+.rollup {
+  color: green;
+  user-select: none;
+}

test/input.js

@@ -0,0 +1,3 @@
+import './input.css'
+
+console.log('css imported')

test/simple/expected.css

@@ -0,0 +1,4 @@
+.rollup {
+  color: green;
+  user-select: none;
+}

test/simple/output.js

@@ -0,0 +1 @@
+console.log('css imported');

test/simple/rollup.config.js

@@ -0,0 +1,12 @@
+import css from '../../src/index.js'
+
+export default {
+  input: '../input.js',
+  output: {
+    file: 'output.js',
+    format: 'esm'
+  },
+  plugins: [
+    css()
+  ]
+}