added additional test code

types/rollup/rollup-tests.ts

@@ -1,15 +1,25 @@
-import { rollup, Bundle } from 'rollup'
+import { rollup, Bundle, Plugin } from 'rollup'
 
 let cache: Bundle | undefined
+let plugin: Plugin
 
 async function main() {
     const bundle = await rollup({
         input: 'main.js',
+        external: ['external-module'],
+        plugins: [plugin],
         cache,
     })
 
+    const bundle2 = await rollup({
+        input: 'main.js',
+        external: id => /^rxjs/.test(id),
+        plugins: plugin
+    })
+
     const result = bundle.generate({
         format: 'cjs',
+        indent: false,
     })
 
     cache = bundle
@@ -17,6 +27,15 @@ async function main() {
     await bundle.write({
         format: 'cjs',
         dest: 'bundle.js',
+        globals: {
+            jquery: '$',
+            lodash: '_',
+        },
+        banner: '/* Banner */',
+        footer: '/* Footer */',
+        intro: 'var ENV = "production";',
+        outro: 'var VERSION = "1.0.0";',
+        indent: '  ',
     })
 }