我如何使用JUnit测试void actionEvent中的信息

如何解决我如何使用JUnit测试void actionEvent中的信息

我试图从一个空的actionEvent中获取信息，以便可以将其用于JUnit测试（第一次尝试使用JUnit）。但是我不确定该怎么做。如果有人可以提出一些指导，我将不胜感激。 这是下面的代码。 （此代码仅用于与JUnit一起测试，我知道它的垃圾酱。

import java.awt.Container;
import javax.swing.JTextField;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JOptionPane;
import javax.swing.JPasswordField;
import javax.swing.JFrame;
import javax.swing.JLabel;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Date;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.net.UnknownHostException;
import java.time.OffsetDateTime;
import java.time.ZoneOffset;


public class frameIt extends JFrame implements ActionListener {

    Container cont = getContentPane();
    JLabel uL = new JLabel("USER");
    JLabel pL = new JLabel("PASS");
    JTextField userT1 = new JTextField();
    JPasswordField pass1 = new JPasswordField();
    JButton logButt = new JButton("LOGIN");
    JButton reButt = new JButton("RESET");
    


    frameIt() {
        
        cont.setLayout(null);
    
        uL.setBounds(20,50,20);
        pL.setBounds(20,80,20);
        userT1.setBounds(70,100,30);
        pass1.setBounds(70,30);
        logButt.setBounds(70,30);
        reButt.setBounds(70,130,30);
       
        cont.add(logButt);
        cont.add(reButt);
        cont.add(uL);
        cont.add(pL);
        cont.add(userT1);
        cont.add(pass1);
    
        logButt.addActionListener(this);
        reButt.addActionListener(this);

    }

//auditing
    public String theLog(String user,String eventType) throws UnknownHostException {
        //UTC date and time string
        OffsetDateTime dateTimeUTC = OffsetDateTime.now(ZoneOffset.UTC);

        // create date and time string
        Date dateTimeLocal = Date.from(dateTimeUTC.toInstant());

        // create filewriter,bufferedwriter,and printwriter
        FileWriter FWrite = null;
        BufferedWriter buffWrite = null;
        PrintWriter printerWrite = null;

        // try block
        try {
            // create file
            File logFile = new File("Log.log");

            // check if file already exists
            // if file does not exist then create it
            if (!logFile.exists()) {
                logFile.createNewFile();
            }

            //filewriter,and printwriter
            FWrite = new FileWriter(logFile,true);
            buffWrite = new BufferedWriter(FWrite);
            printerWrite = new PrintWriter(buffWrite);

            //printwriter
           
            printerWrite.println("----------------------");
            printerWrite.println("UTC Date/Time: " + dateTimeUTC);
            printerWrite.println("Local Date/Time: " + dateTimeLocal);
            printerWrite.println("User name: " + user);
            printerWrite.println("Event type: " + eventType);
            printerWrite.println("----------------------");
            printerWrite.println("");

        } 
        // catch block 
        
        catch (IOException e) {
            System.out.println("Sorry,there was an error.");
        } finally {
           
            // printwriter
            printerWrite.close();
        }

        return null;
    }
    
    
    
    public void actionPerformed(ActionEvent aE)  {
       
        
        
    if (aE.getSource() == reButt) {
            userT1.setText("");
            pass1.setText("");
            
        }
    
        if (aE.getSource() == logButt) {
            
            String userText = userT1.getText();
            String pwdText = String.valueOf(pass1.getPassword());
           
            try {
            
            if (userText.equals("admin") && pwdText.equals("admin")) {
                theLog(userText,"Good Login");
                JOptionPane.showMessageDialog(this,"Login Correct");
            } else {
                JOptionPane.showMessageDialog(this,"try again");
                theLog(userText,"Failed Login");
            }

        }
            
         catch (IOException ex) {
                Logger.getLogger(frameIt.class.getName()).log(Level.SEVERE,null,ex);
                
            }
                 
        
     


          }
        }
    
    public static void main(String[] args) {
        //calling frameIt.java
        frameIt frame = new frameIt();
        //title
        frame.setTitle("Sign on Forever");
        //Want to see it? this is how!
        frame.setVisible(true);
        //Window size
        frame.setBounds(15,15,300,300);
        //exits
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    }
    
    }
    

解决方法

您可以在这里看到此文章：https://examples.javacodegeeks.com/core-java/junit/junit-test-void-method-example/

,

我发现，与其尝试执行此操作，不如将ActionEvent的内容从单击按钮转换为身份验证更容易。这样的。

btnLogout.setOnAction((ActionEvent e) -> {
            doLogin();
        });

，然后将其他所有内容放入doLogin中。 @Spindoctor的答案是好的，应该计算在内。