94 lines
2.4 KiB
TypeScript
94 lines
2.4 KiB
TypeScript
import {downloadAndResize, DownloadAndResizeOpts} from '../../src/lib/images'
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import ImageResizer from '@bam.tech/react-native-image-resizer'
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import RNFetchBlob from 'rn-fetch-blob'
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describe('downloadAndResize', () => {
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const errorSpy = jest.spyOn(global.console, 'error')
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const mockResizedImage = {
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path: jest.fn().mockReturnValue('file://resized-image.jpg'),
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size: 100,
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width: 50,
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height: 50,
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mime: 'image/jpeg',
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}
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beforeEach(() => {
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const mockedCreateResizedImage =
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ImageResizer.createResizedImage as jest.Mock
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mockedCreateResizedImage.mockResolvedValue(mockResizedImage)
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})
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afterEach(() => {
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jest.clearAllMocks()
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})
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it('should return resized image for valid URI and options', async () => {
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const mockedFetch = RNFetchBlob.fetch as jest.Mock
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mockedFetch.mockResolvedValueOnce({
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path: jest.fn().mockReturnValue('file://downloaded-image.jpg'),
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flush: jest.fn(),
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})
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const opts: DownloadAndResizeOpts = {
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uri: 'https://example.com/image.jpg',
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width: 100,
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height: 100,
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maxSize: 500000,
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mode: 'cover',
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timeout: 10000,
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}
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const result = await downloadAndResize(opts)
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expect(result).toEqual(mockResizedImage)
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expect(RNFetchBlob.config).toHaveBeenCalledWith({
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fileCache: true,
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appendExt: 'jpeg',
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})
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expect(RNFetchBlob.fetch).toHaveBeenCalledWith(
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'GET',
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'https://example.com/image.jpg',
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)
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expect(ImageResizer.createResizedImage).toHaveBeenCalledWith(
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'file://downloaded-image.jpg',
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100,
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100,
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'JPEG',
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1,
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undefined,
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undefined,
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undefined,
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{mode: 'cover'},
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)
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})
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it('should return undefined for invalid URI', async () => {
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const opts: DownloadAndResizeOpts = {
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uri: 'invalid-uri',
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width: 100,
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height: 100,
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maxSize: 500000,
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mode: 'cover',
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timeout: 10000,
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}
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const result = await downloadAndResize(opts)
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expect(errorSpy).toHaveBeenCalled()
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expect(result).toBeUndefined()
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})
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it('should return undefined for unsupported file type', async () => {
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const opts: DownloadAndResizeOpts = {
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uri: 'https://example.com/image.bmp',
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width: 100,
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height: 100,
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maxSize: 500000,
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mode: 'cover',
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timeout: 10000,
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}
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const result = await downloadAndResize(opts)
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expect(result).toBeUndefined()
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})
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})
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