chore: Configureer vitest

Configuratie en voorbeeldtesten

backend/tests/example.test.ts

@@ -0,0 +1,9 @@
+import { describe, it, expect } from "vitest";
+
+describe("Sample test", () => {
+    it("should sum to 2", () => {
+        const expected = 2;
+        const result = 1 + 1;
+        expect(result).toBe(expected);
+    });
+})

frontend/vitest.config.ts

@@ -1,14 +1,14 @@
-import { fileURLToPath } from 'node:url'
-import { mergeConfig, defineConfig, configDefaults } from 'vitest/config'
-import viteConfig from './vite.config'
+import { fileURLToPath } from 'node:url';
+import { mergeConfig, defineConfig, configDefaults } from 'vitest/config';
+import viteConfig from './vite.config';
 
 export default mergeConfig(
-  viteConfig,
-  defineConfig({
-    test: {
-      environment: 'jsdom',
-      exclude: [...configDefaults.exclude, 'e2e/**'],
-      root: fileURLToPath(new URL('./', import.meta.url)),
-    },
-  }),
-)
+    viteConfig,
+    defineConfig({
+        test: {
+            environment: 'jsdom',
+            exclude: [...configDefaults.exclude, 'e2e/**'],
+            root: fileURLToPath(new URL('./', import.meta.url)),
+        },
+    }),
+);