diff --git a/g/util/gutil/gutil_comparator_z_unit_test.go b/g/util/gutil/gutil_comparator_z_unit_test.go
new file mode 100755
index 000000000..5d8ed7a2e
--- /dev/null
+++ b/g/util/gutil/gutil_comparator_z_unit_test.go
@@ -0,0 +1,92 @@
+package gutil_test
+
+import (
+	"testing"
+
+	"github.com/gogf/gf/g/test/gtest"
+	"github.com/gogf/gf/g/util/gutil"
+)
+
+func Test_ComparatorString(t *testing.T) {
+	j := gutil.ComparatorString(1, 1)
+	gtest.Assert(j, 0)
+}
+
+func Test_ComparatorInt(t *testing.T) {
+	j := gutil.ComparatorInt(1, 1)
+	gtest.Assert(j, 0)
+}
+
+func Test_ComparatorInt8(t *testing.T) {
+	j := gutil.ComparatorInt8(1, 1)
+	gtest.Assert(j, 0)
+}
+
+func Test_ComparatorInt16(t *testing.T) {
+	j := gutil.ComparatorInt16(1, 1)
+	gtest.Assert(j, 0)
+}
+
+func Test_ComparatorInt32(t *testing.T) {
+	j := gutil.ComparatorInt32(1, 1)
+	gtest.Assert(j, 0)
+}
+
+func Test_ComparatorInt64(t *testing.T) {
+	j := gutil.ComparatorInt64(1, 1)
+	gtest.Assert(j, 0)
+}
+
+func Test_ComparatorUint(t *testing.T) {
+	j := gutil.ComparatorUint(1, 1)
+	gtest.Assert(j, 0)
+}
+
+func Test_ComparatorUint8(t *testing.T) {
+	j := gutil.ComparatorUint8(1, 1)
+	gtest.Assert(j, 0)
+}
+
+func Test_ComparatorUint16(t *testing.T) {
+	j := gutil.ComparatorUint16(1, 1)
+	gtest.Assert(j, 0)
+}
+
+func Test_ComparatorUint32(t *testing.T) {
+	j := gutil.ComparatorUint32(1, 1)
+	gtest.Assert(j, 0)
+}
+
+func Test_ComparatorUint64(t *testing.T) {
+	j := gutil.ComparatorUint64(1, 1)
+	gtest.Assert(j, 0)
+}
+
+func Test_ComparatorFloat32(t *testing.T) {
+	j := gutil.ComparatorFloat32(1, 1)
+	gtest.Assert(j, 0)
+}
+
+func Test_ComparatorFloat64(t *testing.T) {
+	j := gutil.ComparatorFloat64(1, 1)
+	gtest.Assert(j, 0)
+}
+
+func Test_ComparatorByte(t *testing.T) {
+	j := gutil.ComparatorByte(1, 1)
+	gtest.Assert(j, 0)
+}
+
+func Test_ComparatorRune(t *testing.T) {
+	j := gutil.ComparatorRune(1, 1)
+	gtest.Assert(j, 0)
+}
+
+func Test_ComparatorTime(t *testing.T) {
+	j := gutil.ComparatorTime("2019-06-14", "2019-06-14")
+	gtest.Assert(j, 0)
+	k := gutil.ComparatorTime("2019-06-15", "2019-06-14")
+	gtest.Assert(k, 1)
+	l := gutil.ComparatorTime("2019-06-13", "2019-06-14")
+	gtest.Assert(l, -1)
+}
diff --git a/g/util/gutil/gutil_z_unit_test.go b/g/util/gutil/gutil_z_unit_test.go
new file mode 100755
index 000000000..20b87fd8b
--- /dev/null
+++ b/g/util/gutil/gutil_z_unit_test.go
@@ -0,0 +1,68 @@
+package gutil_test
+
+import (
+	"testing"
+
+	"github.com/gogf/gf/g/test/gtest"
+	"github.com/gogf/gf/g/util/gutil"
+)
+
+func Test_Dump(t *testing.T) {
+	gtest.Case(t, func() {
+		gutil.Dump(map[int]int{
+			100: 100,
+		})
+		gtest.Assert("", "")
+	})
+
+	gtest.Case(t, func() {
+		gutil.Dump(map[string]interface{}{"": func() {}})
+		gtest.Assert("", "")
+	})
+
+	gtest.Case(t, func() {
+		gutil.Dump([]byte("gutil Dump test"))
+		gtest.Assert("", "")
+	})
+}
+
+func Test_PrintBacktrace(t *testing.T) {
+	gtest.Case(t, func() {
+		gutil.PrintBacktrace()
+		gtest.Assert("", "")
+	})
+}
+
+func Test_TryCatch(t *testing.T) {
+
+	gutil.TryCatch(func() {
+	}, func(err interface{}) {
+	})
+	gtest.Assert("", "")
+
+	gutil.TryCatch(func() {
+	})
+	gtest.Assert("", "")
+
+	gutil.TryCatch(func() {
+		panic("gutil TryCatch test")
+	}, func(err interface{}) {
+	})
+	gtest.Assert("", "")
+}
+
+func Test_IsEmpty(t *testing.T) {
+	gtest.Assert(gutil.IsEmpty(1), false)
+}
+
+func Test_Throw(t *testing.T) {
+	gtest.Case(t, func() {
+		defer func() {
+			if e := recover(); e != nil {
+				gtest.Assert(e, "gutil Throw test")
+			}
+		}()
+
+		gutil.Throw("gutil Throw test")
+	})
+}