Mark a test class as expected to fail

A new function model_test() is being developed and it returns the accuracy of a given linear regression model on a testing dataset. Test Driven Development (TDD) is being used to implement it. The procedure is: write tests first and then implement the function.

A test class TestModelTest has been created within the test module models/test_train.py. In the test class, there are two unit tests called test_on_linear_data() and test_on_one_dimensional_array(). But the function model_test() has not been implemented yet.

Throughout this exercise, pytest and numpy as np will be imported for you.

Question

Run the tests in the test class TestModelTest in the IPython console. What is the outcome?

Possible answers

The tests fail with IndexError because some arguments to format the variable message are missing.

The tests pass.

The tests fail with NameError since the function model_test() has not yet been defined.

The tests fail with AssertionError.

Exercise

Mark a test class as expected to fail

Instructions 1/3

Question

Possible answers