I'm trying to test a service in my Nest.js app. In some of my methods of this service I have some cases where I throw new HttpException depending of the context.
I'm trying to write unit tests of these methods and I don't know how to test cases where I throw HttpException.
I've tried this code:
it('Shound return error for a non existing id provided', async () => {
await expect(service.getUser('false Id')).rejects.toThrow(new HttpException('This user does not exist', 404));
});
But I received:
Expected the function to throw an error matching:
[Error: This user does not exist]
Instead, it threw:
Error: This user does not exist
Does anyone already encounter this use case ?
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