chore: split vitest (#3426)

apps/electron/package.json

@@ -54,6 +54,7 @@
     "ts-node": "^10.9.1",
     "undici": "^5.22.1",
     "uuid": "^9.0.0",
+    "vitest": "^0.33.0",
     "which": "^3.0.1",
     "zx": "^7.2.3"
   },

apps/electron/vitest.config.ts

@@ -0,0 +1,31 @@
+import { resolve } from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+import { defineConfig } from 'vitest/config';
+
+const rootDir = fileURLToPath(new URL('../..', import.meta.url));
+const pluginOutputDir = resolve(rootDir, './apps/electron/dist/plugins');
+
+export default defineConfig({
+  resolve: {
+    alias: {
+      // prevent tests using two different sources of yjs
+      yjs: resolve(rootDir, 'node_modules/yjs'),
+    },
+  },
+  define: {
+    'process.env.PLUGIN_DIR': JSON.stringify(pluginOutputDir),
+  },
+  test: {
+    include: ['./src/**/*.spec.ts'],
+    exclude: ['**/node_modules', '**/dist', '**/build', '**/out'],
+    testTimeout: 5000,
+    singleThread: true,
+    threads: false,
+    coverage: {
+      provider: 'istanbul', // or 'c8'
+      reporter: ['lcov'],
+      reportsDirectory: resolve(rootDir, '.coverage/electron'),
+    },
+  },
+});