diff --git a/app/test_main.py b/app/test_main.py
index fa56336..f049396 100644
--- a/app/test_main.py
+++ b/app/test_main.py
@@ -1 +1,44 @@
-# write your code here
+import pytest
+
+from app.main import check_password
+
+
+@pytest.mark.parametrize("password,expected_result",
+                         [
+                             pytest.param("Pass@word1", True,
+                                          id="\'Pass@word1\' "
+                                             "is correct password"),
+
+                             pytest.param("Pass@worФ1", False,
+                                          id="\'Pass@worФ1\' "
+                                             "contains non latin symbol"),
+
+                             pytest.param("Pass@wor+1", False,
+                                          id="\'Pass@wor+1\' "
+                                             "contains non allowed"
+                                             " symbol/'+/'"),
+
+                             pytest.param("Pass@w1", False,
+                                          id="\'Pass@w1\' "
+                                             "contains less than 8 symbols"),
+
+                             pytest.param("Pass@worqqqqqqqq1", False,
+                                          id="\'Pass@worqqqqqqqq1\' "
+                                             "contains more than 16 symbols"),
+
+                             pytest.param("Passsword1", False,
+                                          id="\'Passsword1\' "
+                                             "contains no special symbols"),
+
+                             pytest.param("pass@word1", False,
+                                          id="\'pass@word1\' "
+                                             "contains no upper case symbols"),
+
+                             pytest.param("Pass@wordd", False,
+                                          id="\'Pass@wordd\' "
+                                             "contains no digits"),
+                         ]
+
+                         )
+def test_check_password(password: str, expected_result: bool) -> None:
+    assert expected_result == check_password(password)