diff --git a/got_test.go b/got_test.go
index b4dac67..6400585 100644
--- a/got_test.go
+++ b/got_test.go
@@ -6,6 +6,10 @@ import (
 	"net/http/httptest"
 	"os"
 	"testing"
+	"strings"
+	"time"
+
+	"io/ioutil"
 
 	"github.com/melbahja/got"
 )
@@ -30,7 +34,8 @@ func TestGot(t *testing.T) {
 		switch r.URL.String() {
 
 		case "/file1":
-			http.ServeContent(w, r, "go.mod", stat.ModTime(), file)
+			// http.ServeContent(w, r, "go.mod", stat.ModTime(), file)
+			http.ServeFile(w, r, "go.mod")
 			return
 
 		case "/file2":
@@ -47,6 +52,16 @@ func TestGot(t *testing.T) {
 
 			w.WriteHeader(http.StatusMethodNotAllowed)
 			return
+
+		case "/file5":
+
+			if strings.Contains(r.Header.Get("range"), "3-") {
+
+				time.Sleep(2 * time.Second)
+			}
+
+			http.ServeFile(w, r, "go.mod")
+			return
 		}
 
 		w.WriteHeader(http.StatusNotFound)
@@ -104,14 +119,22 @@ func TestGot(t *testing.T) {
 			// test when partial content not supprted.
 			downloadPartialContentNotSupportedTest(t, httpt.URL+"/file2")
 		})
+
+		t.Run("fileContentTest", func(t *testing.T) {
+
+			// test when partial content not supprted.
+			fileContentTest(t, httpt.URL+"/file5")
+		})
 	})
 }
 
 func getInfoTest(t *testing.T, url string, expect got.Info) {
 
-	defer clean()
+	tmpFile := createTemp()
+	defer clean(tmpFile)
 
-	d, err := got.New(url, "/tmp/got_dl_test")
+
+	d, err := got.New(url, tmpFile)
 
 	if err != nil {
 		t.Error(err)
@@ -133,11 +156,13 @@ func getInfoTest(t *testing.T, url string, expect got.Info) {
 
 func initTest(t *testing.T, url string) {
 
-	defer clean()
+	tmpFile := createTemp()
+	defer clean(tmpFile)
+
 
 	d := got.Download{
 		URL:  url,
-		Dest: "/tmp/got_dl_test",
+		Dest: tmpFile,
 	}
 
 	if err := d.Init(); err != nil {
@@ -147,9 +172,11 @@ func initTest(t *testing.T, url string) {
 
 func downloadChunksTest(t *testing.T, url string, size int64) {
 
-	defer clean()
+	tmpFile := createTemp()
+	defer clean(tmpFile)
+
 
-	d, err := got.New(url, "/tmp/got_dl_test")
+	d, err := got.New(url, tmpFile)
 
 	if err != nil {
 
@@ -166,11 +193,13 @@ func downloadChunksTest(t *testing.T, url string, size int64) {
 
 func downloadTest(t *testing.T, url string, size int64) {
 
-	defer clean()
+	tmpFile := createTemp()
+	defer clean(tmpFile)
+
 
 	d := &got.Download{
 		URL:          url,
-		Dest:         "/tmp/got_dl_test",
+		Dest:         tmpFile,
 		Concurrency:  2,
 		StopProgress: true,
 	}
@@ -185,7 +214,7 @@ func downloadTest(t *testing.T, url string, size int64) {
 		t.Error(err)
 	}
 
-	stat, err := os.Stat("/tmp/got_dl_test")
+	stat, err := os.Stat(tmpFile)
 
 	if err != nil {
 		t.Error(err)
@@ -198,9 +227,11 @@ func downloadTest(t *testing.T, url string, size int64) {
 
 func downloadNotFoundTest(t *testing.T, url string) {
 
-	defer clean()
+	tmpFile := createTemp()
+	defer clean(tmpFile)
+
 
-	_, err := got.New(url, "/tmp/got_dl_test")
+	_, err := got.New(url, tmpFile)
 
 	if err == nil {
 		t.Error("It sould have an error")
@@ -210,10 +241,12 @@ func downloadNotFoundTest(t *testing.T, url string) {
 
 func downloadHeadNotSupported(t *testing.T, url string) {
 
-	defer clean()
+	tmpFile := createTemp()
+	defer clean(tmpFile)
 
 	d := &got.Download{
 		URL: url,
+		Dest: tmpFile,
 	}
 
 	// init
@@ -238,11 +271,12 @@ func downloadHeadNotSupported(t *testing.T, url string) {
 
 func downloadPartialContentNotSupportedTest(t *testing.T, url string) {
 
-	defer clean()
+	tmpFile := createTemp()
+	defer clean(tmpFile)
 
 	d := &got.Download{
 		URL:  url,
-		Dest: "/tmp/got_dl_test",
+		Dest: tmpFile,
 	}
 
 	if err := d.Init(); err != nil {
@@ -258,7 +292,7 @@ func downloadPartialContentNotSupportedTest(t *testing.T, url string) {
 		t.Error(err)
 	}
 
-	stat, err := os.Stat("/tmp/got_dl_test")
+	stat, err := os.Stat(tmpFile)
 
 	if err != nil {
 		t.Error(err)
@@ -269,7 +303,63 @@ func downloadPartialContentNotSupportedTest(t *testing.T, url string) {
 	}
 }
 
-func clean() {
+func fileContentTest(t *testing.T, url string) {
+
+	tmpFile := createTemp()
+	defer clean(tmpFile)
+
+	d := &got.Download{
+		URL:  url,
+		Dest: tmpFile,
+		ChunkSize: 10,
+	}
+
+	if err := d.Init(); err != nil {
+		t.Error(err)
+		return
+	}
+
+	if err := d.Start(); err != nil {
+		t.Error(err)
+		return
+	}
+
+	mod, err := ioutil.ReadFile("go.mod")
+
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	dlFile, err := ioutil.ReadFile(tmpFile)
+
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	if string(mod) != string(dlFile) {
+
+		fmt.Println("a", string(mod))
+		fmt.Println("b", string(dlFile))
+		t.Error("Corrupted file")
+	}
+}
+
+func createTemp() string {
+
+	tmp, err := ioutil.TempFile("", "")
+
+	if err != nil {
+		panic(err)
+	}
+
+	defer tmp.Close()
+
+	return tmp.Name()
+}
+
+func clean(tmpFile string) {
 
-	os.Remove("/tmp/got_dl_test")
+	os.Remove(tmpFile)
 }