add test for app-config useCourseSearchRecentsScreen

- add @testing-library/react-native
- test out prod enabled vs dev enabled for app-config flag

Author: drewvolz

modules/app-config/__tests__/useCourseSearchRecentsScreen.test.tsx

@@ -0,0 +1,63 @@
+import React, {ReactElement} from 'react'
+import {describe, expect, test} from '@jest/globals'
+import {renderHook, waitFor} from '@testing-library/react-native'
+import {QueryClient, QueryClientProvider} from '@tanstack/react-query'
+import {useCourseSearchRecentsScreen} from '../index'
+
+jest.mock('../../../source/lib/storage', () => ({
+	getFeatureFlag: jest.fn(),
+}))
+
+jest.mock('@frogpond/constants', () => ({
+	isDevMode: jest.fn(),
+}))
+
+describe('useCourseSearchRecentsScreen', () => {
+	let queryClient: QueryClient
+
+	beforeAll(() => {
+		queryClient = new QueryClient()
+	})
+
+	afterAll(() => {
+		queryClient.clear()
+		queryClient.removeQueries()
+	})
+
+	const queryWrapper = ({children}: {children: ReactElement}) => (
+		<QueryClientProvider client={queryClient}>{children}</QueryClientProvider>
+	)
+
+	// eslint-disable-next-line @typescript-eslint/no-var-requires
+	const isDevModeMock = require('@frogpond/constants').isDevMode
+
+	const getFeatureFlagMock =
+		// eslint-disable-next-line @typescript-eslint/no-var-requires
+		require('../../../source/lib/storage').getFeatureFlag
+
+	test('it should return true in dev when feature is enabled', async () => {
+		isDevModeMock.mockReturnValue(true)
+		getFeatureFlagMock.mockReturnValue(true)
+
+		const {result} = renderHook(() => useCourseSearchRecentsScreen(), {
+			wrapper: queryWrapper,
+		})
+
+		await waitFor(() => {
+			expect(result.current).toBe(true)
+		})
+	})
+
+	test('it should return false in prod when feature is enabled', async () => {
+		isDevModeMock.mockReturnValue(false)
+		getFeatureFlagMock.mockReturnValue(true)
+
+		const {result} = renderHook(() => useCourseSearchRecentsScreen(), {
+			wrapper: queryWrapper,
+		})
+
+		await waitFor(() => {
+			expect(result.current).toBe(false)
+		})
+	})
+})

package-lock.json

@@ -113,6 +113,7 @@
     "@jest/globals": "29.6.4",
     "@sentry/cli": "2.20.6",
     "@tanstack/eslint-plugin-query": "4.34.1",
+    "@testing-library/react-native": "12.3.0",
     "@types/base-64": "1.0.0",
     "@types/http-cache-semantics": "4.0.1",
     "@types/jest": "29.5.4",