如何测试java split方法的正确性与稳定性

avatar
作者
猴君
阅读量:0

要测试Java中的split方法的正确性和稳定性,你可以编写一些单元测试用例来验证其功能。以下是一些建议的测试用例:

  1. 测试基本功能:
public static void main(String[] args) {     String input = "Hello,World,Java,Split,Method";     String[] expectedOutput = {"Hello", "World", "Java", "Split", "Method"};     String[] actualOutput = input.split(",");     assertArrayEquals(expectedOutput, actualOutput); } 
  1. 测试空字符串输入:
public static void main(String[] args) {     String input = "";     String[] expectedOutput = {};     String[] actualOutput = input.split(",");     assertArrayEquals(expectedOutput, actualOutput); } 
  1. 测试分隔符在字符串末尾的情况:
public static void main(String[] args) {     String input = "Hello,World,Java,Split,Method,";     String[] expectedOutput = {"Hello", "World", "Java", "Split", "Method"};     String[] actualOutput = input.split(",");     assertArrayEquals(expectedOutput, actualOutput); } 
  1. 测试多个连续分隔符的情况:
public static void main(String[] args) {     String input = "Hello,,World,,Java,,Split,,Method";     String[] expectedOutput = {"Hello", "", "World", "", "Java", "", "Split", "", "Method"};     String[] actualOutput = input.split(",");     assertArrayEquals(expectedOutput, actualOutput); } 
  1. 测试分隔符为正则表达式的特殊字符(如.*+?等)时的情况:
public static void main(String[] args) {     String input = "Hello*World+Java?Split#Method";     String[] expectedOutput = {"Hello", "World", "Java", "Split", "Method"};     String[] actualOutput = input.split("[*+?#]");     assertArrayEquals(expectedOutput, actualOutput); } 
  1. 测试输入为null的情况:
public static void main(String[] args) {     String input = null;     try {         String[] output = input.split(",");     } catch (NullPointerException e) {         System.out.println("Passed: NullPointerException is thrown when input is null");     } } 

通过这些测试用例,你可以验证Java split方法的正确性和稳定性。当然,你还可以根据需要添加更多的测试用例。

广告一刻

为您即时展示最新活动产品广告消息,让您随时掌握产品活动新动态!