如何使用JavaFX Filechooser对方法进行单元测试

Question

How do i write a JUNIT test for a method that brings up a JavaFX Filechooser? the unit test gets stuck awaiting for user input from that Filechooser

@Test
public void testGetPath() {
  try {
        myController mc= new myController();
        String s = uiController.getPath();
        assertNotNull(s);
  }



public String getPath() {
String s = "";
Task<Void> t = new Task<Void>() {

  @Override
  protected Void call() throws Exception {
      FileChooser myFileChooser = new FileChooser ("/home/default");

      File file =  myFileChooser.showSaveDialog(appStage);

      if (file != null) {
        s = file.getAbsolutePath().toString();
      }
  }

};

Platform.runLater(t);

while (!t.isDone())
  ;

return s;
}

Answer 1

您可以为myController添加一个模拟，该模拟将实现相同的接口，但该模拟将仅返回文件路径，而无需任何用户干预。