COMP-880 Lab 1 Grading Tests

test_lab1_for_grading.py

"""Tests for lab1 module."""
import pytest
import lab1


def test_minimum_0():
    """Tests an argument of None, and ensures that no error occurs."""
    data = None
    assert lab1.minimum(data) is None


def test_minimum_1():
    """Tests an argument of None, and ensures that no error occurs."""
    data = True  # Not an iterable
    assert lab1.minimum(data) is None


def test_minimum_2():
    """Tests an argument of an empty list."""
    data = []
    assert lab1.minimum(data) is None


def test_minimum_3():
    """Tests an argument of a list with just element."""
    data = [1]
    assert lab1.minimum(data) == 1


def test_minimum_4():
    """Tests an argument of a list with positive and negative elements."""
    data = [1, -1]
    assert lab1.minimum(data) == -1


def test_minimum_5():
    """Tests a calculated mean that is a non-integral float value."""
    data = [1, 2, 2, 5, 3]
    assert lab1.minimum(data) == 1


def test_minimum_6():
    """Tests with a list of non-numeric values."""
    with pytest.raises(TypeError):
        data = [True, 'some string']
        lab1.minimum(data)