Write a fixture for an empty data file

When a function takes a data file as an argument, you need to write a fixture that takes care of creating and deleting that data file. This exercise will test your ability to write such a fixture.

get_data_as_numpy_array() should return an empty numpy array if it gets an empty data file as an argument. To test this behavior, you need to write a fixture empty_file() that does the following.

Creates an empty data file empty.txt relative to the current working directory in setup.
Yields the path to the empty data file.
Deletes the empty data file in teardown.

The fixture will be used by the test test_on_empty_file(), which is available for you to see in the script.

os, pytest, numpy as np and get_data_as_numpy_array have been imported for you.

In the setup, assign the variable file_path to the correct string.
After the setup, yield the variable file_path so that the test can use it.
In the teardown, remove the file.

Take Hint (-15 XP)

Exercise

Write a fixture for an empty data file

Instructions 1/2