test: add and use a mocked DatabaseConfig

Signed-off-by: David Mehren <git@herrmehren.de>

src/config/mock/database.config.mock.ts

@@ -0,0 +1,22 @@
+/*
+ * SPDX-FileCopyrightText: 2022 The HedgeDoc developers (see AUTHORS file)
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+import { registerAs } from '@nestjs/config';
+
+import { DatabaseDialect } from '../database-dialect.enum';
+import { DatabaseConfig } from '../database.config';
+
+export default registerAs(
+  'databaseConfig',
+  (): DatabaseConfig => ({
+    dialect: (process.env.HEDGEDOC_TEST_DB_TYPE || 'sqlite') as DatabaseDialect,
+    database: 'hedgedoc',
+    password: 'hedgedoc',
+    host: 'localhost',
+    port: 0,
+    storage: '',
+    username: 'hedgedoc',
+  }),
+);

test/test-setup.ts

@@ -23,6 +23,7 @@ import { DatabaseConfig } from '../src/config/database.config';
 import appConfigMock from '../src/config/mock/app.config.mock';
 import authConfigMock from '../src/config/mock/auth.config.mock';
 import customizationConfigMock from '../src/config/mock/customization.config.mock';
+import databaseConfigMock from '../src/config/mock/database.config.mock';
 import externalServicesConfigMock from '../src/config/mock/external-services.config.mock';
 import mediaConfigMock from '../src/config/mock/media.config.mock';
 import noteConfigMock from '../src/config/mock/note.config.mock';
@@ -199,6 +200,7 @@ export class TestSetupBuilder {
           isGlobal: true,
           load: [
             appConfigMock,
+            databaseConfigMock,
             noteConfigMock,
             authConfigMock,
             mediaConfigMock,