diff --git a/g/os/genv/genv_test.go b/g/os/genv/genv_test.go
new file mode 100644
index 000000000..e4b64062f
--- /dev/null
+++ b/g/os/genv/genv_test.go
@@ -0,0 +1,36 @@
+package genv_test
+
+import (
+	"github.com/gogf/gf/g/os/genv"
+	"github.com/gogf/gf/g/test/gtest"
+	"os"
+	"testing"
+	"time"
+)
+
+func Test_Genv_All(t *testing.T) {
+	gtest.Case(t, func() {
+		gtest.Assert(os.Environ(), genv.All())
+	})
+}
+
+func Test_Genv_Get(t *testing.T) {
+	gtest.Case(t, func() {
+		gtest.AssertEQ("keke", genv.Get("LLL"+time.Now().String(), "keke"))
+		gtest.AssertEQ("", genv.Get("LLL"+time.Now().String()))
+	})
+}
+
+func Test_Genv_Set(t *testing.T) {
+	gtest.Case(t, func() {
+		err := genv.Set("LLL", "keke")
+		gtest.Assert(err, nil)
+	})
+}
+
+func Test_Genv_Remove(t *testing.T) {
+	gtest.Case(t, func() {
+		err := genv.Remove("LLL")
+		gtest.Assert(err, nil)
+	})
+}