diff --git a/example/fileupload/fileupload_test.go b/example/fileupload/fileupload_test.go
index a028d14a52a..2cda68f4360 100644
--- a/example/fileupload/fileupload_test.go
+++ b/example/fileupload/fileupload_test.go
@@ -109,12 +109,14 @@ func TestFileUpload(t *testing.T) {
 		resolver := &Resolver{
 			MultipleUploadFunc: func(ctx context.Context, files []graphql.Upload) ([]model.File, error) {
 				require.Len(t, files, 2)
+				var contents []string
 				for i := range files {
 					require.NotNil(t, files[i].File)
 					content, err := ioutil.ReadAll(files[i].File)
 					require.Nil(t, err)
-					require.Equal(t, string(content), "test")
+					contents = append(contents, string(content))
 				}
+				require.ElementsMatch(t, []string{"test1", "test2"}, contents)
 				return []model.File{
 					{ID: 1},
 					{ID: 2},
@@ -132,11 +134,11 @@ func TestFileUpload(t *testing.T) {
 		require.NoError(t, err)
 		w0, err := bodyWriter.CreateFormFile("0", "a.txt")
 		require.NoError(t, err)
-		_, err = w0.Write([]byte("test"))
+		_, err = w0.Write([]byte("test1"))
 		require.NoError(t, err)
 		w1, err := bodyWriter.CreateFormFile("1", "b.txt")
 		require.NoError(t, err)
-		_, err = w1.Write([]byte("test"))
+		_, err = w1.Write([]byte("test2"))
 		require.NoError(t, err)
 		err = bodyWriter.Close()
 		require.NoError(t, err)
diff --git a/handler/graphql_test.go b/handler/graphql_test.go
index ee709162734..0e8ca298049 100644
--- a/handler/graphql_test.go
+++ b/handler/graphql_test.go
@@ -155,14 +155,14 @@ func TestFileUpload(t *testing.T) {
 	})
 
 	t.Run("valid single file upload with payload", func(t *testing.T) {
-		stub := &executableSchemaMock{
+		mock := &executableSchemaMock{
 			MutationFunc: func(ctx context.Context, op *ast.OperationDefinition) *graphql.Response {
 				require.Equal(t, len(op.VariableDefinitions), 1)
 				require.Equal(t, op.VariableDefinitions[0].Variable, "req")
 				return &graphql.Response{Data: []byte(`{"singleUploadWithPayload":{"id":1}}`)}
 			},
 		}
-		handler := GraphQL(stub)
+		handler := GraphQL(mock)
 
 		bodyBuf := &bytes.Buffer{}
 		bodyWriter := multipart.NewWriter(bodyBuf)
@@ -206,11 +206,11 @@ func TestFileUpload(t *testing.T) {
 		require.NoError(t, err)
 		w0, err := bodyWriter.CreateFormFile("0", "a.txt")
 		require.NoError(t, err)
-		_, err = w0.Write([]byte("test"))
+		_, err = w0.Write([]byte("test1"))
 		require.NoError(t, err)
 		w1, err := bodyWriter.CreateFormFile("1", "b.txt")
 		require.NoError(t, err)
-		_, err = w1.Write([]byte("test"))
+		_, err = w1.Write([]byte("test2"))
 		require.NoError(t, err)
 		err = bodyWriter.Close()
 		require.NoError(t, err)
@@ -243,11 +243,11 @@ func TestFileUpload(t *testing.T) {
 		require.NoError(t, err)
 		w0, err := bodyWriter.CreateFormFile("0", "a.txt")
 		require.NoError(t, err)
-		_, err = w0.Write([]byte("test"))
+		_, err = w0.Write([]byte("test1"))
 		require.NoError(t, err)
 		w1, err := bodyWriter.CreateFormFile("1", "b.txt")
 		require.NoError(t, err)
-		_, err = w1.Write([]byte("test"))
+		_, err = w1.Write([]byte("test2"))
 		require.NoError(t, err)
 		err = bodyWriter.Close()
 		require.NoError(t, err)