def test_can_construct(self):
# arrange
target = "aaabbbcc"
available_letters = "abcabcab"
# act
result = can_construct(target, available_letters)
# assert
self.assertTrue(result)
def test_can_construct_no_available_letters(self):
# arrange
target = "a"
available_letters = ""
# act
result = can_construct(target, available_letters)
# assert
self.assertFalse(result)
def test_can_construct_not_enough_letters(self):
# arrange
target = "aaabbbcc"
available_letters = "aaabbcc"
# act
result = can_construct(target, available_letters)
# assert
self.assertFalse(result)
def test_can_construct_missing_letters(self):
# arrange
target = "abdc"
available_letters = "acd"
# act
result = can_construct(target, available_letters)
# assert
self.assertFalse(result)
def test_can_construct_different_letters(self):
# arrange
target = "abcd"
available_letters = "abce"
# act
result = can_construct(target, available_letters)
# assert
self.assertFalse(result)
def test_can_construct_no_target(self):
# arrange
target = ""
available_letters = "bd"
# act
result = can_construct(target, available_letters)
# assert
self.assertTrue(result)