diff --git a/g/os/gfile/gfile_test.go b/g/os/gfile/gfile_test.go
new file mode 100644
index 000000000..3bf08eae7
--- /dev/null
+++ b/g/os/gfile/gfile_test.go
@@ -0,0 +1,297 @@
+package gfile
+
+import (
+	"github.com/gogf/gf/g/test/gtest"
+	"os"
+	"testing"
+)
+
+
+
+func TestIsDir(t *testing.T){
+
+
+	gtest.Case(t, func() {
+		gtest.Assert(IsDir("./testfile"), true)
+		gtest.Assert(IsDir("./testfile2"), false)
+		gtest.Assert(IsDir("./testfile/tt.txt"), false)
+	})
+
+}
+
+func TestCreate(t *testing.T){
+	gtest.Case(t, func() {
+		var (
+			err error
+			filepaths []string
+		)
+
+		filepaths=append(filepaths,"./testfile/file/c1.txt")
+		filepaths=append(filepaths,"./testfile/file1/c2.txt")
+
+
+		 for _,v:=range filepaths{
+			 _,err=Create(v)
+			 gtest.Assert(err,nil)
+
+		 }
+
+
+	})
+
+
+
+}
+
+func TestOpen(t *testing.T)  {
+	gtest.Case(t, func(){
+		var(
+			err error
+			files []string
+			flags []bool
+		)
+
+		files=append(files,"./testfile/file1/nc1.txt")
+		flags=append(flags,false)
+
+		files=append(files,"./testfile/tt.txt")
+		flags=append(flags,true)
+
+
+		for k,v:=range files{
+			_,err=Open(v)
+
+
+			if flags[k]{
+				gtest.Assert(err,nil)
+			}else{
+				gtest.AssertNE(err,nil)
+			}
+
+		}
+
+
+	})
+}
+
+
+func TestOpenFile(t *testing.T)  {
+	gtest.Case(t, func(){
+		var(
+			err error
+			files []string
+			flags []bool
+		)
+
+		files=append(files,"./testfile/file1/nc1.txt")
+		flags=append(flags,false)
+
+		files=append(files,"./testfile/tt.txt")
+		flags=append(flags,true)
+
+
+		for k,v:=range files{
+			_,err=OpenFile(v,os.O_RDWR,0666)
+			if flags[k]{
+				gtest.Assert(err,nil)
+			}else{
+				gtest.AssertNE(err,nil)
+			}
+
+		}
+
+
+	})
+}
+
+
+
+func TestOpenWithFlag(t *testing.T) {
+	gtest.Case(t, func(){
+		var(
+			err error
+			files []string
+			flags []bool
+		)
+
+		files=append(files,"./testfile/file1/nc1.txt")
+		flags=append(flags,false)
+
+		files=append(files,"./testfile/tt.txt")
+		flags=append(flags,true)
+
+
+		for k,v:=range files{
+			_,err=OpenWithFlag(v,os.O_RDWR)
+			if flags[k]{
+				gtest.Assert(err,nil)
+			}else{
+				gtest.AssertNE(err,nil)
+			}
+
+		}
+
+
+	})
+}
+
+
+func TestOpenWithFlagPerm(t *testing.T) {
+	gtest.Case(t, func(){
+		var(
+			err error
+			files []string
+			flags []bool
+		)
+
+		files=append(files,"./testfile/file1/nc1.txt")
+		flags=append(flags,false)
+
+		files=append(files,"./testfile/tt.txt")
+		flags=append(flags,true)
+
+
+		for k,v:=range files{
+			_,err=OpenWithFlagPerm(v,os.O_RDWR,666)
+			if flags[k]{
+				gtest.Assert(err,nil)
+			}else{
+				gtest.AssertNE(err,nil)
+			}
+
+		}
+
+
+	})
+}
+
+
+
+
+func TestExists(t *testing.T) {
+
+	gtest.Case(t, func(){
+		var(
+			flag bool
+			files []string
+			flags []bool
+		)
+
+		files=append(files,"./testfile/file1/nc1.txt")
+		flags=append(flags,false)
+
+		files=append(files,"./testfile/tt.txt")
+		flags=append(flags,true)
+
+
+		for k,v:=range files{
+			flag=Exists(v)
+			if flags[k]{
+				gtest.Assert(flag,true)
+			}else{
+				gtest.Assert(flag,false)
+			}
+
+		}
+
+
+	})
+}
+
+
+func TestPwd(t *testing.T) {
+	gtest.Case(t, func(){
+		paths,err:=os.Getwd()
+		gtest.Assert(err,nil)
+		gtest.Assert(Pwd(),paths)
+
+	})
+}
+
+func TestIsFile(t *testing.T) {
+	gtest.Case(t, func(){
+		var(
+			flag bool
+			files []string
+			flags []bool
+		)
+
+		files=append(files,"./testfile/file1/nc1.txt")
+		flags=append(flags,false)
+
+		files=append(files,"./testfile/tt.txt")
+		flags=append(flags,true)
+
+		files=append(files,"./testfile")
+		flags=append(flags,false)
+
+
+		for k,v:=range files{
+			flag=IsFile(v)
+			if flags[k]{
+				gtest.Assert(flag,true)
+			}else{
+				gtest.Assert(flag,false)
+			}
+
+		}
+
+
+	})
+}
+
+
+func TestInfo(t *testing.T) {
+	gtest.Case(t, func(){
+		var(
+			err error
+			paths string ="./testfile/tt.txt"
+			files os.FileInfo
+			files2 os.FileInfo
+		)
+
+		files,err=Info(paths)
+		gtest.Assert(err,nil)
+
+
+		files2,err=os.Stat(paths)
+		gtest.Assert(err,nil)
+
+		gtest.Assert(files,files2)
+
+	})
+}
+
+
+func TestMove(t *testing.T) {
+	gtest.Case(t, func(){
+		var(
+			paths string ="./testfile/havefile1/ttn1.txt"
+			topath string ="./testfile/havefile1/ttn2.txt"
+		)
+
+		gtest.Assert(Move(paths,topath),nil)
+
+	})
+}
+
+ func TestRename(t *testing.T){
+	 gtest.Case(t, func(){
+		 var(
+
+			 paths string ="./testfile/havefile1/ttm1.txt"
+			 topath string ="./testfile/havefile1/ttm2.txt"
+
+		 )
+
+		 gtest.Assert(Rename(paths,topath),nil)
+		// gtest.Assert(IsFile(topath),true)
+
+
+	 })
+
+
+ }
+
+
+
diff --git a/g/os/gfile/testfile/c1.txt b/g/os/gfile/testfile/c1.txt
new file mode 100644
index 000000000..e69de29bb
diff --git a/g/os/gfile/testfile/file/c1.txt b/g/os/gfile/testfile/file/c1.txt
new file mode 100644
index 000000000..e69de29bb
diff --git a/g/os/gfile/testfile/file1/c2.txt b/g/os/gfile/testfile/file1/c2.txt
new file mode 100644
index 000000000..e69de29bb
diff --git a/g/os/gfile/testfile/havefile1/ttm2.txt b/g/os/gfile/testfile/havefile1/ttm2.txt
new file mode 100644
index 000000000..e69de29bb
diff --git a/g/os/gfile/testfile/havefile1/ttn2.txt b/g/os/gfile/testfile/havefile1/ttn2.txt
new file mode 100644
index 000000000..e69de29bb
diff --git a/g/os/gfile/testfile/tt.txt b/g/os/gfile/testfile/tt.txt
new file mode 100644
index 000000000..b6fc4c620
--- /dev/null
+++ b/g/os/gfile/testfile/tt.txt
@@ -0,0 +1 @@
+hello
\ No newline at end of file
diff --git a/g/os/gfile/testfile/ttm_1.txt b/g/os/gfile/testfile/ttm_1.txt
new file mode 100644
index 000000000..e69de29bb
diff --git a/g/os/gfile/testfile/ttn1.txt b/g/os/gfile/testfile/ttn1.txt
new file mode 100644
index 000000000..e69de29bb
diff --git a/go.mod b/go.mod
index ef37cb8d6..081d99cd0 100644
--- a/go.mod
+++ b/go.mod
@@ -1 +1,3 @@
 module github.com/gogf/gf
+
+go 1.12