Test for writable package.json

Author: fmeum

src/package.ts

@@ -210,7 +210,7 @@ function isHostTrusted(url: url.UrlWithStringQuery): boolean {
 	return TrustedSVGSources.indexOf(url.host.toLowerCase()) > -1 || isGitHubBadge(url.href);
 }
 
-class ManifestProcessor extends BaseProcessor {
+export class ManifestProcessor extends BaseProcessor {
 	constructor(manifest: Manifest) {
 		super(manifest);
 

src/test/package.test.ts

@@ -13,6 +13,7 @@ import {
 	WebExtensionProcessor,
 	IAsset,
 	IPackageOptions,
+	ManifestProcessor,
 } from '../package';
 import { Manifest } from '../manifest';
 import * as path from 'path';
@@ -1684,6 +1685,21 @@ describe('toContentTypes', () => {
 	});
 });
 
+describe('ManifestProcessor', () => {
+	it('should ensure that package.json is writable', async () => {
+		const root = fixture('uuid');
+		const manifest = JSON.parse(await readFile(path.join(root, 'package.json'), 'utf8'));
+		const processor = new ManifestProcessor(manifest);
+		const packageJson = {
+			path: 'extension/package.json',
+			localPath: path.join(root, 'package.json'),
+		};
+
+		const outPackageJson = await processor.onFile(packageJson);
+		assert.ok(outPackageJson.mode & 0o200);
+	});
+});
+
 describe('MarkdownProcessor', () => {
 	it('should throw when no baseContentUrl is provided', async () => {
 		const manifest = {