diff --git a/g/internal/empty/empty_test.go b/g/internal/empty/empty_test.go
new file mode 100644
index 000000000..0241a8b2c
--- /dev/null
+++ b/g/internal/empty/empty_test.go
@@ -0,0 +1,90 @@
+// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
+//
+// This Source Code Form is subject to the terms of the MIT License.
+// If a copy of the MIT was not distributed with this file,
+// You can obtain one at https://github.com/gogf/gf.
+
+package empty_test
+
+import (
+	"github.com/gogf/gf/g"
+	"github.com/gogf/gf/g/internal/empty"
+	"github.com/gogf/gf/g/test/gtest"
+	"github.com/gogf/gf/g/util/gconv"
+	"testing"
+)
+
+type TestPerson interface {
+	Say() string
+}
+type TestWoman struct {
+}
+
+func (woman TestWoman) Say() string {
+	return "nice"
+}
+
+func TestIsEmpty(t *testing.T) {
+	gtest.Case(t, func() {
+		tmpT1 := "0"
+		tmpT2 := func() {}
+		tmpT2 = nil
+		tmpT3 := make(chan int, 0)
+		var tmpT4 TestPerson = nil
+		var tmpT5 *TestPerson = nil
+		tmpF1 := "1"
+		tmpF2 := func(a string) string { return "1" }
+		tmpF3 := make(chan int, 1)
+		tmpF3 <- 1
+		var tmpF4 TestPerson = TestWoman{}
+		tmpF5 := &tmpF4
+		// true
+		gtest.Assert(empty.IsEmpty(nil), true)
+		gtest.Assert(empty.IsEmpty(gconv.Int(tmpT1)), true)
+		gtest.Assert(empty.IsEmpty(gconv.Int8(tmpT1)), true)
+		gtest.Assert(empty.IsEmpty(gconv.Int16(tmpT1)), true)
+		gtest.Assert(empty.IsEmpty(gconv.Int32(tmpT1)), true)
+		gtest.Assert(empty.IsEmpty(gconv.Int64(tmpT1)), true)
+		gtest.Assert(empty.IsEmpty(gconv.Uint64(tmpT1)), true)
+		gtest.Assert(empty.IsEmpty(gconv.Uint(tmpT1)), true)
+		gtest.Assert(empty.IsEmpty(gconv.Uint16(tmpT1)), true)
+		gtest.Assert(empty.IsEmpty(gconv.Uint32(tmpT1)), true)
+		gtest.Assert(empty.IsEmpty(gconv.Uint64(tmpT1)), true)
+		gtest.Assert(empty.IsEmpty(gconv.Float32(tmpT1)), true)
+		gtest.Assert(empty.IsEmpty(gconv.Float64(tmpT1)), true)
+		gtest.Assert(empty.IsEmpty(false), true)
+		gtest.Assert(empty.IsEmpty([]byte("")), true)
+		gtest.Assert(empty.IsEmpty(""), true)
+		gtest.Assert(empty.IsEmpty(g.Map{}), true)
+		gtest.Assert(empty.IsEmpty(g.Slice{}), true)
+		gtest.Assert(empty.IsEmpty(g.Array{}), true)
+		gtest.Assert(empty.IsEmpty(tmpT2), true)
+		gtest.Assert(empty.IsEmpty(tmpT3), true)
+		gtest.Assert(empty.IsEmpty(tmpT3), true)
+		gtest.Assert(empty.IsEmpty(tmpT4), true)
+		gtest.Assert(empty.IsEmpty(tmpT5), true)
+		// false
+		gtest.Assert(empty.IsEmpty(gconv.Int(tmpF1)), false)
+		gtest.Assert(empty.IsEmpty(gconv.Int8(tmpF1)), false)
+		gtest.Assert(empty.IsEmpty(gconv.Int16(tmpF1)), false)
+		gtest.Assert(empty.IsEmpty(gconv.Int32(tmpF1)), false)
+		gtest.Assert(empty.IsEmpty(gconv.Int64(tmpF1)), false)
+		gtest.Assert(empty.IsEmpty(gconv.Uint(tmpF1)), false)
+		gtest.Assert(empty.IsEmpty(gconv.Uint8(tmpF1)), false)
+		gtest.Assert(empty.IsEmpty(gconv.Uint16(tmpF1)), false)
+		gtest.Assert(empty.IsEmpty(gconv.Uint32(tmpF1)), false)
+		gtest.Assert(empty.IsEmpty(gconv.Uint64(tmpF1)), false)
+		gtest.Assert(empty.IsEmpty(gconv.Float32(tmpF1)), false)
+		gtest.Assert(empty.IsEmpty(gconv.Float64(tmpF1)), false)
+		gtest.Assert(empty.IsEmpty(true), false)
+		gtest.Assert(empty.IsEmpty(tmpT1), false)
+		gtest.Assert(empty.IsEmpty([]byte("1")), false)
+		gtest.Assert(empty.IsEmpty(g.Map{"a": 1}), false)
+		gtest.Assert(empty.IsEmpty(g.Slice{"1"}), false)
+		gtest.Assert(empty.IsEmpty(g.Array{"1"}), false)
+		gtest.Assert(empty.IsEmpty(tmpF2), false)
+		gtest.Assert(empty.IsEmpty(tmpF3), false)
+		gtest.Assert(empty.IsEmpty(tmpF4), false)
+		gtest.Assert(empty.IsEmpty(tmpF5), false)
+	})
+}