diff --git a/pkg/fixedpoint/dec_dnum_test.go b/pkg/fixedpoint/dec_dnum_test.go
index d92d49639..051a8f0e6 100644
--- a/pkg/fixedpoint/dec_dnum_test.go
+++ b/pkg/fixedpoint/dec_dnum_test.go
@@ -3,8 +3,9 @@
 package fixedpoint
 
 import (
-	"github.com/stretchr/testify/assert"
 	"testing"
+
+	"github.com/stretchr/testify/assert"
 )
 
 func TestDelta(t *testing.T) {
@@ -13,6 +14,12 @@ func TestDelta(t *testing.T) {
 	assert.InDelta(t, f1.Mul(f2).Float64(), 41.3, 1e-14)
 }
 
+func TestFloor(t *testing.T) {
+	f1 := MustNewFromString("10.333333")
+	f2 := f1.Floor()
+	assert.Equal(t, "10", f2.String())
+}
+
 func TestInternal(t *testing.T) {
 	r := &reader{"1.1e-15", 0}
 	c, e := r.getCoef()