- 1 year ago
FakeRedis exception - FakeSocket does not have fileno() method
The FakeRedis
exception "FakeSocket does not have fileno() method" typically occurs when using the fakeredis
library to simulate a Redis server for testing purposes, and there is an attempt to access the file descriptor number of a FakeSocket
object. This error is raised because the FakeSocket
class does not have a fileno()
method, which is commonly used with real sockets in Python.
To resolve this issue, you can modify your code to handle the FakeSocket
object appropriately without attempting to access the file descriptor number. Here are some possible solutions:
Avoid Using
fileno()
: If your code relies on thefileno()
method for some operations, you can try to find an alternative approach that does not require accessing the file descriptor number. In many cases, the need forfileno()
can be bypassed or replaced with other methods or approaches.Mock
fileno()
: If the code you are testing contains a direct call tofileno()
on theFakeSocket
object, you can mock thefileno()
method to return a fake file descriptor number. You can use theunittest.mock
module to achieve this. However, keep in mind that mocking is typically used for isolated unit testing and might not be the best approach for integration or end-to-end tests.Avoid
FakeRedis
: If thefakeredis
library'sFakeRedis
implementation is causing too many issues or limitations, consider using a real Redis server for testing purposes. There are libraries and tools available for setting up and managing temporary Redis instances during testing.
Without seeing the specific code that triggers the exception, it's challenging to provide a precise solution. However, by reviewing your code and understanding how it interacts with fakeredis
, you should be able to adjust your approach to avoid the "FakeSocket does not have fileno() method" exception.