junit - Hamcrest - Matchers.hasProperty : how to check if a List of objects contains an object with a concrete value

Question

我对 Hamcrest 有以下问题:
我有一份员工名单

List<Employee> employees = hamcrest.getEmployees();

在哪里:

public class Employee {

    private String name;
    private int age;
    private double salary;

    public Employee(String name, int age, double salary) {
        super();
        this.name = name;
        this.age = age;
        this.salary = salary;
    }

和:

public List<Employee> getEmployees() {
        Employee e1 = new Employee("Adam", 39, 18000);
        Employee e2 = new Employee("Jola", 26, 8000);
        Employee e3 = new Employee("Kamil", 64, 7700);
        Employee e4 = new Employee("Mateusz", 27, 37000);
        Employee e5 = new Employee("Joanna", 31, 12700);
        Employee e6 = null;
        return Arrays.asList(e1, e2, e3, e4, e5, e6);
    }

我想检查我的列表中是否有 name = Mateusz 的对象。
我以这种方式尝试过，但出了点问题:

@Test
public void testListOfObjectsContains() {
    List<Employee> employees = hamcrest.getEmployees();
    assertThat(employees, Matchers.anyOf(Matchers.containsInAnyOrder(Matchers.hasProperty("name", is("Mateusz")), Matchers.hasProperty("age", is(27)))));
}

如何使用 Hamcrest 进行检查？
我花了2个多小时在互联网上找到解决方案，但不幸的是没有成功。

非常感谢您提前!

Answer 1

您需要匹配器 hasItem

assertThat(
  x,
  hasItem(allOf(
    Matchers.<Employee>hasProperty("name", is("Mateusz")),
    Matchers.<Employee>hasProperty("age", is(27))
  ))
);