Enable macOS tests (#1774)

* Enable macOS tests

* Fix macOS tests

.github/workflows/ci.yml

@@ -21,6 +21,8 @@ jobs:
         include:
           - os: windows-latest
             node_version: 16
+          - os: macos-latest
+            node_version: 16
       fail-fast: false
     env:
       LANG: en-us

packages/astro/src/vite-plugin-astro/index.ts

@@ -6,6 +6,7 @@ import type { AstroConfig } from '../@types/astro-core';
 import esbuild from 'esbuild';
 import fs from 'fs';
 import { fileURLToPath } from 'url';
+import os from 'os';
 import { transform } from '@astrojs/compiler';
 import { decode } from 'sourcemap-codec';
 import { AstroDevServer } from '../core/dev/index.js';
@@ -79,6 +80,12 @@ export default function astro({ config, devServer }: AstroPluginOptions): vite.P
             return { code: result.code, map };
           },
         });
+
+        // macOS fix: remove null chars generated by compiler
+        if (os.platform() === 'darwin') {
+          tsResult.code = tsResult.code.replace(/\x00/g, '');
+        }
+
         // Compile `.ts` to `.js`
         const { code, map } = await esbuild.transform(tsResult.code, { loader: 'ts', sourcemap: 'external', sourcefile: id });