test: Add some unit tests for `useRetentionPolicy` (#33196)

apps/meteor/client/views/room/hooks/useRetentionPolicy.spec.ts

+import { mockAppRoot } from '@rocket.chat/mock-providers';
+import { renderHook } from '@testing-library/react';
+
+import { createFakeRoom } from '../../../../tests/mocks/data';
+import { useRetentionPolicy } from './useRetentionPolicy';
+
+const getGlobalSettings = ({
+	enabled = false,
+	filesOnly = false,
+	doNotPrunePinned = false,
+	ignoreThreads = false,
+	appliesToChannels = false,
+	appliesToGroups = false,
+	appliesToDMs = false,
+}) => {
+	return mockAppRoot()
+		.withSetting('RetentionPolicy_Enabled', enabled)
+		.withSetting('RetentionPolicy_FilesOnly', filesOnly)
+		.withSetting('RetentionPolicy_DoNotPrunePinned', doNotPrunePinned)
+		.withSetting('RetentionPolicy_DoNotPruneThreads', ignoreThreads)
+		.withSetting('RetentionPolicy_AppliesToChannels', appliesToChannels)
+		.withSetting('RetentionPolicy_AppliesToGroups', appliesToGroups)
+		.withSetting('RetentionPolicy_AppliesToDMs', appliesToDMs);
+};
+
+const defaultValue = {
+	enabled: false,
+	isActive: false,
+	filesOnly: false,
+	excludePinned: false,
+	ignoreThreads: false,
+};
+
+const roomTypeConfig = {
+	c: { appliesToChannels: true },
+	p: { appliesToGroups: true },
+	d: { appliesToDMs: true },
+};
+
+const CHANNELS_TYPE = 'c';
+
+it('should return the default value if global retention is not enabled', async () => {
+	const fakeRoom = createFakeRoom({ t: CHANNELS_TYPE });
+
+	const { result } = renderHook(() => useRetentionPolicy(fakeRoom), {
+		legacyRoot: true,
+		wrapper: getGlobalSettings({}).build(),
+	});
+
+	expect(result.current).toEqual(expect.objectContaining(defaultValue));
+});
+
+it('should return enabled true if global retention is enabled', async () => {
+	const fakeRoom = createFakeRoom({ t: CHANNELS_TYPE });
+
+	const { result } = renderHook(() => useRetentionPolicy(fakeRoom), {
+		legacyRoot: true,
+		wrapper: getGlobalSettings({ enabled: true }).build(),
+	});
+
+	expect(result.current).toEqual(expect.objectContaining({ ...defaultValue, enabled: true }));
+});
+
+it('should return enabled and active true global retention is active for rooms of the type', async () => {
+	const fakeRoom = createFakeRoom({ t: CHANNELS_TYPE });
+
+	const { result } = renderHook(() => useRetentionPolicy(fakeRoom), {
+		legacyRoot: true,
+		wrapper: getGlobalSettings({ enabled: true, ...roomTypeConfig[CHANNELS_TYPE] }).build(),
+	});
+
+	expect(result.current).toEqual(expect.objectContaining({ ...defaultValue, enabled: true, isActive: true }));
+});
+
+it.failing(
+	'should isActive be false if global retention is active for rooms of the type and room has retention.enabled false',
+	async () => {
+		const fakeRoom = createFakeRoom({ t: CHANNELS_TYPE, retention: { enabled: false } });
+
+		const { result } = renderHook(() => useRetentionPolicy(fakeRoom), {
+			legacyRoot: true,
+			wrapper: getGlobalSettings({ enabled: true, ...roomTypeConfig[CHANNELS_TYPE] }).build(),
+		});
+
+		expect(result.current?.isActive).toBe(false);
+	},
+);

apps/meteor/tests/mocks/data.ts

@@ -21,7 +21,7 @@ export function createFakeUser(overrides?: Partial<IUser>): IUser {
 	};
 }
 
-export const createFakeRoom = (overrides?: Partial<IRoom>): IRoom => ({
+export const createFakeRoom = (overrides?: Partial<IRoom & { retention?: { enabled: boolean } }>): IRoom => ({
 	_id: faker.database.mongodbObjectId(),
 	_updatedAt: faker.date.recent(),
 	t: faker.helpers.arrayElement(['c', 'p', 'd']),