How to use the file-type.mockReturnValue function in file-type
To help you get started, we’ve selected a few file-type examples, based on popular ways it is used in public projects.
Secure your code as it's written. Use Snyk Code to scan source code in minutes - no build needed - and fix issues immediately.
Yoctol / bottender / src / cli / actions / __tests__ / uploadImages.spec.js View on Github 
it('call pushFile when checksum is different', async () => {
const mockPushFile = jest.fn();
hasha.fromFileSync = jest
.fn()
.mockReturnValueOnce('qazwsx')
.mockReturnValueOnce('wsxedc');
yoctolStatic.__setMockPushFile(mockPushFile);
fileType.mockReturnValue({
mime: 'image/png',
});
await uploadImages({ folderPath });
expect(mockPushFile).toHaveBeenCalledTimes(2);
});file-type
Detect the file type of a Buffer/Uint8Array/ArrayBuffer
