Add tests

Author: onixlas

array_string/__init__.py

@@ -0,0 +1,11 @@
+import pytest
+from array_string.greatest_common_divisor_of_strings.solution import Solution
+
+@pytest.mark.parametrize("str1, str2, expected", [
+    ("ABCABC", "ABC", "ABC"),
+    ("ABABAB", "ABAB", "AB"),
+    ("LEET", "CODE", "")
+])
+def test_merge_alternately(str1, str2, expected):
+    solution = Solution()
+    assert solution.gcdOfStrings(str1, str2) == expected

array_string/greatest_common_divisor_of_strings/__init__.py

@@ -1,5 +1,5 @@
 import pytest
-from solution import Solution
+from array_string.merge_strings_alternately.solution import Solution
 
 @pytest.mark.parametrize("word1, word2, expected", [
     ("abc", "pqr", "apbqcr"),