diff --git a/utils/sums_test.go b/utils/sums_test.go
new file mode 100644
index 00000000..f5766326
--- /dev/null
+++ b/utils/sums_test.go
@@ -0,0 +1,24 @@
+package utils
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func Test_SumInts(t *testing.T) {
+	expected := 6
+	result := SumInts([]int{1, 3, 2})
+
+	assert.Equal(t, expected, result)
+
+	expected = 46
+	result = SumInts([]int{4, 6, 7, 23, 6})
+
+	assert.Equal(t, expected, result)
+
+	expected = 4
+	result = SumInts([]int{4})
+
+	assert.Equal(t, expected, result)
+}
diff --git a/utils/utils.go b/utils/utils.go
index 2907d106..4add8637 100644
--- a/utils/utils.go
+++ b/utils/utils.go
@@ -204,7 +204,7 @@ func MaxInt(x, y int) int {
 //
 // Examples:
 //
-//   clamp(6, 3, 8) => 4
+//   clamp(6, 3, 8) => 6
 //   clamp(1, 3, 8) => 3
 //   clamp(9, 3, 8) => 8
 //
diff --git a/utils/utils_test.go b/utils/utils_test.go
index 1d005ffa..5c04eafb 100644
--- a/utils/utils_test.go
+++ b/utils/utils_test.go
@@ -131,3 +131,32 @@ func Test_ReadFileBytes(t *testing.T) {
 		})
 	}
 }
+
+func Test_MaxInt(t *testing.T) {
+	expected := 3
+	result := MaxInt(3, 2)
+
+	assert.Equal(t, expected, result)
+
+	expected = 3
+	result = MaxInt(2, 3)
+
+	assert.Equal(t, expected, result)
+}
+
+func Test_Clamp(t *testing.T) {
+	expected := 6
+	result := Clamp(6, 3, 8)
+
+	assert.Equal(t, expected, result)
+
+	expected = 3
+	result = Clamp(1, 3, 8)
+
+	assert.Equal(t, expected, result)
+
+	expected = 8
+	result = Clamp(9, 3, 8)
+
+	assert.Equal(t, expected, result)
+}