diff --git a/tests/unit/test_letter_one_day.py b/tests/unit/test_letter_one_day.py
new file mode 100644
index 0000000..53ad395
--- /dev/null
+++ b/tests/unit/test_letter_one_day.py
@@ -0,0 +1,26 @@
+import unittest
+import sys
+import os
+
+# Add the src folder to the Python path
+sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '../../src')))
+
+from my_package.fetch_current_data import fetch_current_data
+
+class TestCityNameCase(unittest.TestCase):
+    
+    def test_city_name_case_insensitive(self):
+        # Test city with big and small letter
+        city_name_upper = "Oslo"
+        city_name_lower = "oslo"
+        
+        # Test if they return the same, the underscore is for the folder that we dont use here
+        data_upper, _ = fetch_current_data(city_name_upper)  
+        data_lower, _ = fetch_current_data(city_name_lower)
+        
+        # use temperature as an example to see if data is identical
+        self.assertEqual(data_upper["main"]["temp"], data_lower["main"]["temp"])
+
+if __name__ == "__main__":
+    unittest.main()
+
diff --git a/tests/unit/test_one_day.py b/tests/unit/test_one_day.py
new file mode 100644
index 0000000..ad6e05c
--- /dev/null
+++ b/tests/unit/test_one_day.py
@@ -0,0 +1,39 @@
+import unittest
+import sys
+import os
+from datetime import datetime
+from src.my_package.date_to_unix import from_unix_timestamp
+
+# This will make the absolute path from the root of the project, and will therefor work every time
+sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), "../../src")))
+
+
+class TestGetUnixTimestamp(unittest.TestCase):
+
+    def test_get_unix_timestamp(self):
+        # Example user input for start and end date
+        start_date_input = "2000, 03, 05, 11, 00"
+        end_date_input = "2000, 03, 05, 13, 00"
+        
+        # Convert input string to datetime object
+        start_date = datetime.strptime(start_date_input, "%Y, %m, %d, %H, %M")
+        end_date = datetime.strptime(end_date_input, "%Y, %m, %d, %H, %M")
+
+         # Get the Unix timestamp by calling .timestamp()
+        expected_unix_start = int(start_date.timestamp())
+        expected_unix_end = int(end_date.timestamp())
+
+        # Call the function directly with test data
+        function_unix_start, function_unix_end = from_unix_timestamp(expected_unix_start, expected_unix_end)
+
+        # Assert that the returned timestamps are correct
+        self.assertEqual(function_unix_start, start_date)
+        self.assertEqual(function_unix_end, end_date)
+
+
+if __name__ == "__main__":
+    unittest.main()
+
+
+#this test is to test if the code date matches its timestamp 
+