byotest.py

def number_or_even(numbers):
    return 0
#test fucntions
def test_are_equal(actual, expected):
    assert expected == actual, "Expected {0}, got {1}".format(expected, actual)
    
def test_not_equal(actual, expected):
    assert expected != actual, "Not expected {1}, got {0}".format(expected, actual)

def test_is_in(item, collection):
    assert item in collection, "{0} does not contain {1}".format(collection, item)
    
def test_not_in(item, collection):
    """
    Check to ensure that a given collection does not contain a given value.
    Raises AssertionError if the `item` is found in `collection`
    `collection` is the collection in question
    `item` is the thing that we want to check for
    """
    assert item not in collection, "{0} is not in {1}".format(collection, item)#index
    
def test_between(upper_limit, lower_limit, actual):
    """
    Check to ensure that a number is between two other numbers. Raises
    AssertionError if the number is not between the other two numbers
    """
    assert lower_limit <= actual <= upper_limit, "{0} is not between {1} and {2}".format(actual, lower_limit, upper_limit)
    


# Test to fail the `test_are_equal` function
# test_are_equal(number_of_evens([1,2,3,4,5]), 2)

# Test to fail the `test_not_equal` function
# test_not_equal(0, 0)

# Test to fail the `test_is_in` function
# test_is_in([1], 2)

# Test to fail the `test_not_in` function
# test_not_in([1], 1)

# Test to fail the `test_between` function
# test_between(10, 1, 200)