Java—编写测试用例

1、引入包

<dependency>
    <groupId>org.junit.jupiter</groupId>
    <artifactId>junit-jupiter-api</artifactId>
    <version>5.8.2</version>
    <scope>test</scope>
</dependency>

2、测试代码示例

import org.junit.jupiter.api.Test;
import java.util.Formatter;
import java.util.Locale;
import static org.junit.jupiter.api.Assertions.assertEquals;

class FormatterTest {

    @Test
    void errFormatterTest(){
        String t1 = "this is %s bucket,its code is %s";
        String t2 = "that is old bucket";

        //如果存在预处理格式的字符串就做相应的替换
        Formatter formatter1 = new Formatter();
        formatter1.format(Locale.getDefault(Locale.Category.FORMAT),
                t1, "wfwf","3");
        assertEquals(formatter1.toString(),"this is wfwf bucket,its code is 3");


        Formatter formatter2 = new Formatter();
        formatter2.format(Locale.getDefault(Locale.Category.FORMAT),
                t2, "wfwf");
        assertEquals(formatter2.toString(),"that is old bucket");
    }
}