标签:获取 str class case 名称 out bsp employees amp
Filter 是过滤器,也可以当查询方法使用
EmployeeTestCase.java
package com.example.demo; import lombok.extern.log4j.Log4j2; import org.junit.Test; import java.util.List; import java.util.Optional; import java.util.stream.Collectors; import static org.junit.Assert.assertEquals; import static org.junit.Assert.assertTrue; @Log4j2 public class EmployeeTestCase extends BaseTest{ @Test public void filter() { //获取包含Alex员工列表 List<Employee> employeeIs1 = list.stream().filter(e -> e.getName().contains("Alex")).collect(Collectors.toList()); assertTrue(null != employeeIs1 && employeeIs1.get(0).getId() == 1l); //获取包含Jacks名称的首位员工 Optional<Employee> employeeJaskFirst2 = list.stream().filter(e -> e.getName().contains("Jack")).findFirst(); assertEquals(employeeJaskFirst2.get().getId(), 3); //获取所有薪酬为1500的员工 List<Employee> employees1350 = list.stream().filter(employee -> employee.getSalary() == 1500).peek(System.out::println).collect(Collectors.toList()); assertEquals(2, employees1350.size()); } }
BaseTest.java
package com.example.demo; import java.util.Arrays; import java.util.List; public class BaseTest { protected static final List<Employee> list = Arrays.asList( new Employee(1, "Alex", 1000), new Employee(2, "Michael", 2000), new Employee(3, "Jack", 1500), new Employee(4, "Owen", 1500), new Employee(5, "Denny", 2000)); protected static final List<List<Employee>> listFlat = Arrays.asList( Arrays.asList(new Employee(1, "Alex", 1000), new Employee(2, "Michael", 2000)), Arrays.asList(new Employee(3, "Jack", 1500), new Employee(4, "Owen", 1500)), Arrays.asList(new Employee(5, "Denny", 2000))); }
标签:获取 str class case 名称 out bsp employees amp
原文地址:https://www.cnblogs.com/JavaWeiBianCheng/p/11926422.html