update unit tests and mocks

packages/backend/test/misc/MockDependencyService.ts

@@ -0,0 +1,35 @@
+/*
+ * SPDX-FileCopyrightText: hazelnoot and other Sharkey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Injectable } from '@nestjs/common';
+import { DependencyService } from '@/global/DependencyService.js';
+import { bindThis } from '@/decorators.js';
+
+/**
+ * Extension of DependencyService that allows version information to be mocked.
+ */
+@Injectable()
+export class MockDependencyService extends DependencyService {
+	/**
+	 * Overrides the version for a dependency.
+	 * Pass a string or null to override the version, or pass undefined to clear the override and restore the original value.
+	 */
+	@bindThis
+	public setDependencyVersion(dependency: string, version: string | null | undefined) {
+		if (version !== undefined) {
+			this.dependencyVersionCache.set(dependency, version);
+		} else {
+			this.dependencyVersionCache.delete(dependency);
+		}
+	}
+
+	/**
+	 * Resets the mock to initial values.
+	 */
+	@bindThis
+	public mockReset(): void {
+		this.dependencyVersionCache.clear();
+	}
+}