making changes to common library, starting to integrate database functions

common/engine/compressor_test.go

@@ -37,7 +37,7 @@ func TestMain(t *testing.T) {
 	})
 }
 
-func openFile(path string) ([]byte, error) {
+func testOpenFile(path string) ([]byte, error) {
 	data, err := ioutil.ReadFile(path)
 	if err != nil {
 		fmt.Println("File reading error", err)
@@ -45,7 +45,7 @@ func openFile(path string) ([]byte, error) {
 	return data, err
 }
 
-func writeFile(path string, data []byte) error {
+func testWriteFile(path string, data []byte) error {
 	err := ioutil.WriteFile(path, data, 0644)
 	return err
 }