From 7517b65dcd676f36d38f31c991929c32168b3e12 Mon Sep 17 00:00:00 2001 From: João Ferreiro Date: Thu, 22 Dec 2022 15:32:39 +0000 Subject: Unit testing (#32) * add testing lib * remove coverage folder from git * finished basic test setup * fix tests typescript and import paths * add first snapshot * testing utils * rename test files; update script flags; ++tests * testing utils functions * testing downloadAndResize wip * remove download test * specify unwanted coverage paths; remove update snapshots flag * fix strings tests * testing downloadAndResize method * increasing testing * fixing snapshots wip * fixed shell mobile snapshot * adding snapshots for the screens * fix onboard snapshot * fix typescript issues * fix TabsSelector snapshot * Account for testing device's locale in ago() tests * Remove platform detection on regex Co-authored-by: Paul Frazee --- __tests__/lib/download.test.ts | 93 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 93 insertions(+) create mode 100644 __tests__/lib/download.test.ts (limited to '__tests__/lib/download.test.ts') diff --git a/__tests__/lib/download.test.ts b/__tests__/lib/download.test.ts new file mode 100644 index 000000000..d90e8c895 --- /dev/null +++ b/__tests__/lib/download.test.ts @@ -0,0 +1,93 @@ +import {downloadAndResize, DownloadAndResizeOpts} from '../../src/lib/download' +import ImageResizer from '@bam.tech/react-native-image-resizer' +import RNFetchBlob from 'rn-fetch-blob' + +jest.mock('rn-fetch-blob', () => ({ + config: jest.fn().mockReturnThis(), + cancel: jest.fn(), + fetch: jest.fn(), +})) +jest.mock('@bam.tech/react-native-image-resizer', () => ({ + createResizedImage: jest.fn(), +})) + +describe('downloadAndResize', () => { + const errorSpy = jest.spyOn(global.console, 'error') + + const mockResizedImage = { + path: jest.fn().mockReturnValue('file://resized-image.jpg'), + } + + beforeEach(() => { + jest.clearAllMocks() + + const mockedCreateResizedImage = + ImageResizer.createResizedImage as jest.Mock + mockedCreateResizedImage.mockResolvedValue(mockResizedImage) + }) + + it('should return resized image for valid URI and options', async () => { + const mockedFetch = RNFetchBlob.fetch as jest.Mock + mockedFetch.mockResolvedValueOnce({ + path: jest.fn().mockReturnValue('file://downloaded-image.jpg'), + flush: jest.fn(), + }) + + const opts: DownloadAndResizeOpts = { + uri: 'https://example.com/image.jpg', + width: 100, + height: 100, + mode: 'cover', + timeout: 10000, + } + + const result = await downloadAndResize(opts) + expect(result).toEqual(mockResizedImage) + expect(RNFetchBlob.config).toHaveBeenCalledWith({ + fileCache: true, + appendExt: 'jpeg', + }) + expect(RNFetchBlob.fetch).toHaveBeenCalledWith( + 'GET', + 'https://example.com/image.jpg', + ) + expect(ImageResizer.createResizedImage).toHaveBeenCalledWith( + 'file://downloaded-image.jpg', + 100, + 100, + 'JPEG', + 0.7, + undefined, + undefined, + undefined, + {mode: 'cover'}, + ) + }) + + it('should return undefined for invalid URI', async () => { + const opts: DownloadAndResizeOpts = { + uri: 'invalid-uri', + width: 100, + height: 100, + mode: 'cover', + timeout: 10000, + } + + const result = await downloadAndResize(opts) + expect(errorSpy).toHaveBeenCalled() + expect(result).toBeUndefined() + }) + + it('should return undefined for unsupported file type', async () => { + const opts: DownloadAndResizeOpts = { + uri: 'https://example.com/image.bmp', + width: 100, + height: 100, + mode: 'cover', + timeout: 10000, + } + + const result = await downloadAndResize(opts) + expect(result).toBeUndefined() + }) +}) -- cgit 1.4.1