Pragmatic Unit Testing in Java with JUnit源码

/** * Excerpted from the book, "Pragmatic Unit Testing in Java with JUnit" * ISBN 0-9745140-1-2 * Copyright 2003 The Pragmatic Programmers, LLC. All Rights Reserved. * Visit www.PragmaticProgrammer.com */ import java.awt.*; import java.awt.event.ActionListener; import java.awt.event.ActionEvent; import java.io.*; import java.util.ArrayList; class Recipes extends Frame { private Label titleLabel = new Label("Name of Recipe:", Label.LEFT); private TextField titleText = new TextField(30); private Label ingredientsLabel = new Label("Ingredients:",Label.LEFT); private TextField ingredientsText = new TextField(30); private Button ingredientsRemoveSel = new Button("Remove Ingredient"); private List ingredientsList = new List(12, false); private List searchList = new List(12, false); private Button saveButton = new Button("Save"); private Button searchButton = new Button("Search"); private Button exitButton = new Button("Exit"); private TextField statusText = new TextField(40); public void loadFile() { statusText.setText(searchList.getSelectedItem()); try { BufferedReader in = null; String thePath; thePath = "recipes/" + searchList.getSelectedItem(); in = new BufferedReader( new FileReader(thePath)); String line; while ((line = in.readLine()) != null){ int pos = line.indexOf('='); String token = line.substring(0, pos); String value = line.substring(pos+1); if (token.equals("NAME")) { titleText.setText(value); } else if (token.equals("INGREDIENTS")) { int num_lines = Integer.parseInt(value); for (int i=0; i < num_lines; i++) { line = in.readLine(); ingredientsList.add(line); } } } in.close(); } catch (IOException e) { System.err.println(e); statusText.setText(searchList.getSelectedItem()+ " is corrupt"); return; } statusText.setText(searchList.getSelectedItem()+ " loaded"); } public void removeSel() { int count; String str; str = ingredientsList.getSelectedItem(); if (str != null) { count = ingredientsList.getSelectedIndex(); ingredientsList.remove(count); } } public void addIngredient() { String str; str = ingredientsText.getText(); if (str.length() != 0) { ingredientsList.add(str); ingredientsText.setText(""); } } public void exit() { dispose(); System.exit(0); } public void saveFile(File theFile) { try { PrintWriter out = new PrintWriter( new FileWriter(theFile)); out.println("NAME=" + titleText.getText()); int counter = ingredientsList.getItemCount(); out.println("INGREDIENTS=" + counter); for (int i = 0; i < counter; i +=1){ out.println(ingredientsList.getItem(i)); } out.close(); statusText.setText("Saved "+ titleText.getText()); } catch (IOException e) { System.err.println(e); } } public void save() { String str = statusText.getText(); File theFile = new File("recipes/" + titleText.getText() + ".txt"); if (str.equals(titleText.getText() + ".txt Already exists")) { saveFile(theFile); } else { if (theFile.exists() == true) { statusText.setText(titleText.getText() + ".txt Already exists"); } if (theFile.exists() == false) { saveFile(theFile); } } } public void search() { String str; String[] dir_list; ArrayList matches = new ArrayList(); str = titleText.getText(); searchList.removeAll(); statusText.setText("Partial match: "+ titleText.getText()); File path = new File("recipes/"); dir_list = path.list(); for (int i=0; i < dir_list.length; i++){ String file_name = dir_list[i]; // Truncate the ".txt" suffix if (file_name.endsWith(".txt")) { dir_list[i] = file_name.substring(0, file_name.length() - 4); } System.err.println("Checking " + file_name + " for " + str); if (file_name.indexOf(str) >= 0) { matches.add(dir_list[i]); } } for (int i = 0; i < matches.size(); i++){ searchList.add(matches.get(i) + ".txt"); } } public void showGUI() { setTitle("Recipes"); Panel mainp = new Panel(new FlowLayout()); Panel p1 = new Panel(new BorderLayout()); p1.add(titleLabel, BorderLayout.WEST); p1.add(titleText, BorderLayout.EAST); mainp.add(p1); Panel p2 = new Panel(new BorderLayout()); p2.add(ingredientsLabel, BorderLayout.WEST); p2.add(ingredientsText, BorderLayout.EAST); mainp.add(p2); Panel p3 = new Panel(new BorderLayout()); p3.add(ingredientsList, BorderLayout.CENTER); p3.add(searchList, BorderLayout.EAST); p3.add(ingredientsRemoveSel, BorderLayout.SOUTH); mainp.add(p3); Panel p4 = new Panel(new BorderLayout()); p4.add(saveButton, BorderLayout.WEST); p4.add(searchButton, BorderLayout.CENTER); p4.add(exitButton, BorderLayout.EAST); p4.add(statusText, BorderLayout.SOUTH); mainp.add(p4); // Add the object listeners exitButton.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { exit(); } }); ingredientsText.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { addIngredient(); } }); ingredientsRemoveSel.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { removeSel(); } }); saveButton.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { save(); } }); searchButton.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { search(); } }); searchList.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { loadFile(); } }); add(mainp); setSize(400,400); show(); } public static void main(String args[]){ Recipes obj = new Recipes(); obj.showGUI(); } }