private void convertJavaFile2Test(File javaFile) {
CompilationUnit compilationUnit = JavaParserFactory.getCompilationUnit(javaFile, sourceEncode);
CompilationUnitBuilder compilationUnitBuilder = new CompilationUnitBuilder();
compilationUnitBuilder.buildComment(FileComments.GENERATOR_COMMENT);
//process package
PackageDeclaration packageDeclaration = compilationUnit.getPackage();
String testPackageName = PackageUtils.getTestPackageNameFrom(packageDeclaration);
compilationUnitBuilder.buildPackage(testPackageName);
//process import