Negative testing

[alessandrofelder]

Negative tests - Test that something that is expected to fail actually does fail

time_range may still work when end_time is before start_time, but that may make overlap_time not working as expected.

• Work collaboratively!
• Write a test that tries to generate a time range for a date going backward.
• Modify time_range to produce an error (ValueError) with a meaningful message.
• Use pytest.raises to check for that error (including the error message!) in the test.
• Commit, push and link to this issue by including Answers https://github.com/UCL-MPHY0021-21-22/RSE-Classwork/issues/18 in the commit message.

What other similar tests could we add?

Sample Solution