def test_solution_1():
sol = Solution()
x = ["eads", "asdsadsa", "aresdfsd"]
result = sol.group_anagrams(x)
assert result == [["eads"], ["asdsadsa"], ["aresdfsd"]]
def test_solution_1():
sol = Solution()
x = ["abc", "bca", "cba"]
result = sol.group_anagrams(x)
assert result == [["abc", "bca", "cba"]]
def test_solution_2():
sol = Solution()
x = ["abc", "bca", "cba", "better", "retteb"]
result = sol.group_anagrams(x)
assert result == [["abc", "bca", "cba"], ["better", "retteb"]]
