Question

如何在Java / Swing中测试一个带有“ActionEvent”类型参数的函数？以下是我要测试的功能：

public void actionPerformed(ActionEvent e)
    {
                            // Communicating with the Model class //

        /** if the "Add" button has been pressed **/
    if (e.getActionCommand() == "Add")
    {
        String cust_name = view.getAddCustNameField().getText();
        int ph_num = Integer.parseInt(view.getAddPhoneNumField().getText());
        model.addEntry(cust_name, ph_num, "controller");
    }

    /** if the "Delete" button has been pressed **/
    else if (e.getActionCommand() == "Delete")
    {
        String cust_name = view.getDelCustNameField().getText();
        model.deleteEntry(cust_name, "controller");
    }

    /** if the "Update" button has been pressed **/
    else if (e.getActionCommand() == "Update")
    {
        String cust_name = view.getUpdCustNameField().getText();
        int ph_num = Integer.parseInt(view.getUpdPhoneNumField().getText());
        model.updateEntry(cust_name, ph_num, "controller");
    }

                        // Communicating with the View class //     
    else 
    {

        /** if the "Change Family" button has been pressed **/
        Font fontRes = view.getResDisplayField().getFont();
        Font fontDir = view.getDirDisplayField().getFont();
        if (e.getActionCommand() == "Change Family")
        {
            String fontFamily = view.getFontFamilyField().getText();    
            if (fontFamily != "")
            {
                view.getResDisplayField().setFont(new Font(fontFamily, fontDir.getStyle(), fontRes.getSize()));
            }
        }

        /** if the "Change Size" button has been pressed **/
        else if (e.getActionCommand() == "Change Size")
        {
            int fontWeight = Integer.parseInt(view.getFontSizeField().getText());               
            if (fontWeight > 0)
            {
                view.getResDisplayField().setFont(new Font(fontRes.getFamily(), fontRes.getStyle(), fontWeight));
                view.getDirDisplayField().setFont(new Font(fontDir.getFamily(), fontDir.getStyle(), fontWeight));
            }
        }

        /** if the "Change Italics" button has been pressed **/
        else if (e.getActionCommand() == "Change Style")
        {
            String fontStyle = (String)(view.getFontStyleCombo().getSelectedItem());
            if (fontStyle == "Plain")
            {
                view.getResDisplayField().setFont(new Font(fontRes.getFamily(), Font.PLAIN, fontRes.getSize()));
                view.getDirDisplayField().setFont(new Font(fontDir.getFamily(), Font.PLAIN, fontDir.getSize()));
            }

            else if (fontStyle == "Italic")
            {
                view.getResDisplayField().setFont(new Font(fontRes.getFamily(), Font.ITALIC, fontRes.getSize()));
                view.getDirDisplayField().setFont(new Font(fontDir.getFamily(), Font.ITALIC, fontDir.getSize()));
            }

            else if (fontStyle == "Bold")
            {
                view.getResDisplayField().setFont(new Font(fontRes.getFamily(), Font.BOLD, fontRes.getSize()));
                view.getDirDisplayField().setFont(new Font(fontDir.getFamily(), Font.BOLD, fontDir.getSize()));
            }
        }

    }// 'else' (if the command is meant for the view class)

所以，基本上我想模仿按钮按下动作，并且根据按下的特定按钮，执行条件语句的一个分支。 对应每个按钮，有一组2个JTextField，其值必须以某种方式在我的单元测试函数中设置。那些是“... CustNameField”和“... PhoneNumField”的值，我在上面的函数中输入，所以我必须事先设置它们的值，以便我可以直接输入它们。我怎么能这样做？

Answer 1

您可以使用像easymock或mokito这样的模拟框架。

这些框架可以让您：

为界面创建模拟对象
动态记录预期的方法调用
将模拟对象置于播放模式和
将其传递给要测试的方法
验证是否按预期进行了调用。

单元测试将ActionEvent作为参数的函数

1 个答案: