mattharrison / adv_pytest_mar_22_2018

Pytest files

Intermediate Pytest

http://bit.ly/pytest-mar-22-2018

These assignments are based on a Python implementation that models a lift at a ski resort.

Assignment 1

• Install pytest in a virtual environment

• Run:

  pytest -h
  

Assignment 2

• Create a test/ directory in the skilift
• Create a test/test_skilift.py file
• Create a test function test_line_take that creates a Line with 5 people and takes 7. Ensure that the amount returned is 5 and the .num_people attribute is 0.
• Create a test function test_lift_one_bench that creates a line of 5, and a quad lift with 10 benches. Call .one_bench and assert that the correct results are returned.

Assignment 3

Parameterization

• Create a test function test_line_bad, that creates lines with [], None, and '10' in them. It tries to call .take(1) on each, and checks that the appropriate error is raised.
• Create a test function test_line_sizes that creates lines of size 0, 5, and 10. It takes 5, 2, and 0 from each respectively and asserts that the .num_people attribute is correct. (You should probably parameterize the result as well)
• Run only the test_line_sizes test when the line is created with size 10. (Hint use -v to get an id)

Assignment 4

• Create a fixture for a line of size 5. Use that fixture in test_line_take and test_lift_one_bench
• Create a fixture for a Quad lift of size 10. Use that in test_lift_one_bench

Assignment 5

• Create a fixture, line_n, that depends on request. Read off of the marker to get a line size. Create at test, test_line_6, that creates a tests .take on a Line with length 6.
• Create a fixture, BenchN, that depends on request. Read off of the marker to get a bench size. Dynamically subclass _Bench to create a subclass with the passed in size. Create a test, test_bench6, like test_left_one_bench, that uses the fixture to create 6 person bench and test it.

Assignment 6

• Create a test, test_half_take, that monkey patches Line.take so that only half the amount requested are returned from the line. (ie. line.take(4) would only take 2 from the line)

Assignment 7

• Create a pytest.ini file
• Add an option to run the doctests
• Create a test/conftest.py file. Move the fixtures to this file

Assignment 8

• Examine the setup.py for pytest-cov on GitHub.
• What is the entry point?
• What hook does the plugin implement?

Assignment 9

• Install pytest-cov
• Run coverage on the project using the plugin