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:
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);
}
public static void main(String[] args) {
String input = "";
String[] expectedOutput = {};
String[] actualOutput = input.split(",");
assertArrayEquals(expectedOutput, actualOutput);
}
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);
}
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);
}
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);
}
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。