diff --git a/app/test_split_integer.py b/app/test_split_integer.py
index ef3aa668a..f5a07800c 100644
--- a/app/test_split_integer.py
+++ b/app/test_split_integer.py
@@ -2,20 +2,22 @@
 
 
 def test_sum_of_the_parts_should_be_equal_to_value() -> None:
-    pass
+    result = split_integer(19, 4)
+    assert sum(result) == 19
 
 
 def test_should_split_into_equal_parts_when_value_divisible_by_parts() -> None:
-    pass
+    assert split_integer(6, 2) == [3, 3]
 
 
 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
+    result = split_integer(19, 4)
+    assert result == sorted(result)
 
 
 def test_should_add_zeros_when_value_is_less_than_number_of_parts() -> None:
-    pass
+    assert split_integer(4, 6) == [0, 0, 1, 1, 1, 1]