def test_longest_word():
"""
Tests the function count_divisible_digits
"""
print('Testing longest_word')
assert_equals('3: shells', hw1.longest_word('poem.txt'))
assert_equals(None, hw1.longest_word('nothing.txt'))
def test_longest_word():
"""
Test the function longest_word
"""
print('Testing longest_word')
assert_equals('3: shells', hw1.longest_word('poem.txt'))
assert_equals('19: confession', hw1.longest_word('poem2.txt'))
assert_equals(None, hw1.longest_word('empty.txt'))
def test_longest_word():
"""
Tests the function longest_word
"""
print('Testing longest_word')
# Spec test
assert_equals('3: shells', hw1.longest_word('poem.txt'))
# Edge cases
assert_equals(None, hw1.longest_word('empty.txt'))
assert_equals(None, hw1.longest_word('spaces.txt'))
def test_longest_word():
"""
Tests the longest_word
"""
print('Testing longest_word')
# Notice that we have to start the function calls with "hw1." since
# they live in another file
# Cases from the made up "spec" for this problem
assert_equals('3: shells', hw1.longest_word('poem.txt'))
# Additional two cases
assert_equals('6: seashells', hw1.longest_word('poem2.txt'))
assert_equals('7: sea-whale-shells', hw1.longest_word('poem3.txt'))
def test_longest_word():
assert_equals('3: Merrily,', hw1.longest_word('song.txt'))
# new tests
assert_equals(None, hw1.longest_word('empty.txt'))
assert_equals('1: asdf', hw1.longest_word('tie.txt'))