diff --git a/tests/boat_utest.py b/tests/boat_utest.py
new file mode 100644
index 0000000..c00daf7
--- /dev/null
+++ b/tests/boat_utest.py
@@ -0,0 +1,28 @@
+#coding:utf-8
+
+import unittest
+import sys
+
+sys.path.append('../src')
+from boat import Boat
+from position import Position
+from custom_exception.nothing_to_compare_error import *
+
+class BoatUTest(unittest.TestCase):
+    def test_get_temp_mean(self):
+        temps = [0.0, 25.0, 50.0, 75.0, 100.0]
+        test_boat = Boat("0", "50", "0", "0", "0", temps, [])
+        self.assertEqual(test_boat.get_temp_mean(), 50)
+
+    def test_get_northiest_coords(self):
+        center = Position(0, 0)
+        north = Position(90, 0)
+        south = Position(-90, 0)
+        test_boat = Boat("0", "Test", "0", "0", "0", [], [center, north, south])
+        test_broken_boat = Boat("0", "Broken", "0", "0", "0", [], [])
+        self.assertEqual(test_boat.get_northiest_coords(), north)
+        with self.assertRaises(NothingToCompareError):
+            test_broken_boat.get_northiest_coords()
+
+if __name__ == '__main__':
+    unittest.main()
diff --git a/tests/fleet_utest.py b/tests/fleet_utest.py
new file mode 100644
index 0000000..86efde6
--- /dev/null
+++ b/tests/fleet_utest.py
@@ -0,0 +1,44 @@
+#coding:utf-8
+
+import unittest
+import sys
+import statistics
+sys.path.append('../src')
+from boat import Boat
+from position import Position
+from fleet import Fleet
+from custom_exception.nothing_to_compare_error import *
+
+class FleetUTest(unittest.TestCase):
+    def test_get_northiest(self):
+        north = Position(90, 0)
+        less_north = Position(75, 0)
+        south = Position(-90, 0)
+        less_south = Position(-75, 0)
+
+        test_south_boat = Boat("0", "south", "0", "0", "0", [], [north, less_south])
+        test_north_boat = Boat("0", "north", "0", "0", "0", [], [less_north, south])
+        f = Fleet(2020, boats = [test_north_boat, test_south_boat])
+
+        self.assertEqual(f.get_northiest(), (test_north_boat, north))
+
+    def test_get_highiest_heat_mean(self):
+        hot = [60.0, 45.6, 88.8, 36.7]
+        cold = [10.11, 11.10, 10.01, 1.11]
+        test_clod_boat = Boat("0", "cold", "0", "0", "0", cold, [])
+        test_hot_boat = Boat("0", "hot", "0", "0", "0", hot, [])
+        f = Fleet(2020, boats = [test_hot_boat, test_clod_boat])
+        self.assertEqual(f.get_highiest_heat_mean(), (test_hot_boat, statistics.mean(hot)))
+        broken_f = Fleet(2020, boats = [])
+        with self.assertRaises(NothingToCompareError):
+            broken_f.get_highiest_heat_mean()
+    def test_compare_boats(self):
+        test_boat1 = Boat("0", "0", "0", "0", "0", [], [])
+        test_boat2 = Boat("1", "1", "1", "1", "1", [], [])
+        f = Fleet(2020, boats = [test_boat2, test_boat1])
+        with self.assertRaises(TypeError):
+            f.compare_boats(lambda a, b, c : a + b + c, lambda a : 12)
+
+
+if __name__ == '__main__':
+    unittest.main()
diff --git a/tests/position_utest.py b/tests/position_utest.py
new file mode 100644
index 0000000..ba55c7c
--- /dev/null
+++ b/tests/position_utest.py
@@ -0,0 +1,26 @@
+#coding:utf-8
+
+import unittest
+import sys
+sys.path.append('../src')
+from position import Position
+
+class PositionUTest(unittest.TestCase):
+    def test_is_norther_than(self):
+        center = Position(0, 0)
+        north = Position(90, 0)
+        south = Position(-90, 0)
+        self.assertTrue(north.is_norther_than(south))
+        self.assertFalse(south.is_norther_than(north))
+    def test___eq__(self):
+        north = Position(90, 0)
+        south = Position(-90, 0)
+        self.assertTrue(north.__eq__(north))
+        self.assertFalse(north.__eq__(south))
+        self.assertFalse(north.__eq__(None))
+        self.assertFalse(north.__eq__(12))
+
+        
+
+if __name__ == '__main__':
+    unittest.main()