def test_join_symbols_05():
# random
for _ in range(100):
str_list = [
"".join(
random.choices(string.ascii_letters, k=random.randint(0, 3)))
for _ in range(random.randint(0, 25))
]
assert exam.join_symbols(str_list) == "".join(
[x for x in str_list if len(x) == 1])
def test_join_symbols_04():
# empty list
assert exam.join_symbols([]) == ""
def test_join_symbols_02():
# all symbols
assert exam.join_symbols(["a", "b", "c"]) == "abc"
assert exam.join_symbols(["a", ",", " "]) == "a, "
def test_join_symbols_03():
# some symbols
assert exam.join_symbols(["h", "e ", " y", "y"]) == "hy"
assert exam.join_symbols([" ", " ", " ", " "]) == " "
def test_join_symbols_01():
# no symbols
assert exam.join_symbols(["", "abc", "ccd"]) == ""
assert exam.join_symbols(["ab", "ab", "ab"]) == ""