diff --git a/app/test_split_integer.py b/app/test_split_integer.py
index ef3aa668a..8330b90fc 100644
--- a/app/test_split_integer.py
+++ b/app/test_split_integer.py
@@ -2,20 +2,21 @@
 
 
 def test_sum_of_the_parts_should_be_equal_to_value() -> None:
-    pass
+    assert sum(split_integer(10, 2)) == 10
 
 
 def test_should_split_into_equal_parts_when_value_divisible_by_parts() -> None:
-    pass
+    assert split_integer(12, 3) == [4, 4, 4]
+    assert split_integer(20, 6) == [3, 3, 3, 3, 4, 4]
 
 
 def test_should_return_part_equals_to_value_when_split_into_one_part() -> None:
-    pass
+    assert split_integer(8, 1) == [8]
 
 
 def test_parts_should_be_sorted_when_they_are_not_equal() -> None:
-    pass
+    assert split_integer(10, 2) == sorted(split_integer(10, 2))
 
 
 def test_should_add_zeros_when_value_is_less_than_number_of_parts() -> None:
-    pass
+    assert split_integer(1, 2) == [0, 1]