test: add missing env mock

Author: clementvidon

backend/src/cli/generate-static.test.ts

@@ -1,13 +1,18 @@
 import * as fs from 'fs';
-import { beforeEach, describe, expect, test, vi } from 'vitest';
+import { afterEach, beforeEach, describe, expect, test, vi } from 'vitest';
 import { generateStatic } from './generate-static';
 
 vi.mock('fs');
 
 describe('generateStatic', () => {
+  const DATABASE_URL = 'postgres://user:pass@localhost:5432/db';
+  let previousDatabaseUrl: string | undefined;
+
   const mockWrite = vi.mocked(fs.writeFileSync);
 
   beforeEach(() => {
+    previousDatabaseUrl = process.env.DATABASE_URL;
+    process.env.DATABASE_URL = DATABASE_URL;
     vi.clearAllMocks();
 
     vi.mock('../application/usecases/queries/getTopHeadlines', () => ({
@@ -21,6 +26,14 @@ describe('generateStatic', () => {
     }));
   });
 
+  afterEach(() => {
+    if (previousDatabaseUrl === undefined) {
+      delete process.env.DATABASE_URL;
+    } else {
+      process.env.DATABASE_URL = previousDatabaseUrl;
+    }
+  });
+
   test('writes report and headlines to disk', async () => {
     await generateStatic();