检查数组项从 jsonPath 转换为 JUnit hamcrest 匹配器答案

【问题标题】：Checking array item convert from jsonPath to JUnit hamcrest matcher检查数组项从 jsonPath 转换为 JUnit hamcrest 匹配器
【发布时间】：2020-07-01 15:08:37
【问题描述】：

几乎没有尝试检查 json 是否有包含两个项目的数组：

{
  "sections" : [
    {
      "name" : "A",
      "description" : "aaa"
    },
    {
      "name" : "B",
      "description" : "bbb"
    }
  ]
}

但只是附带

.andExpect(jsonPath("$.sections[?(@.name=='A' && @.description=='aaa')]", hasSize(1)))

有什么方法可以使用 hasItem/hasProperty/containInAnyOrder 将其转换为 Harmcrest 匹配器？

【问题讨论】：

标签： java junit jsonpath hamcrest

【解决方案1】：

我认为将 Json 数组反序列化为 Section 对象列表将很容易使用 Hamcrest 匹配器。您必须重写 equals() 方法以检查 Section 对象是否在创建的 Section 列表中可用。

Section.java

public class Section {
    private String name;
    private String description;

    public Section(String name, String description) {
        this.name = name;
        this.description = description;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getDescription() {
        return description;
    }

    public void setDescription(String description) {
        this.description = description;
    }

    @Override
    public boolean equals(Object obj) {
        if (obj == null) {
            return false;
        }

        if (obj.getClass() != this.getClass()) {
            return false;
        }

        final Section other = (Section) obj;
        if ((this.name == null) ? (other.name != null) : !this.name.equals(other.name)) {
            return false;
        }

        if (!this.description.equals(other.description)) {
            return false;
        }

        return true;
    }
}

然后使用您喜欢的任何 Hamcrest Matcher。

RestAssured.baseURI="https://run.mocky.io/v3/bc929050-35ba-42a1-86b1-58f3fd1ead83";

List<Section> sections =  RestAssured.given()
        .when()
        .get()
        .then()
        .extract().jsonPath().getList("sections", Section.class);

Section sectionA = new Section("A", "aaa");
Section sectionB = new Section("B", "bbb");

List<Section> sectionList = new ArrayList<>();
sectionList.add(sectionA);
sectionList.add(sectionB);

assertThat(sections, hasItem(sectionA)); // pass
assertThat(sections, hasSize(2)); // pass
assertThat(sections, hasItem(hasProperty("name", equalTo("B")))); // pass
assertThat(sections, equalTo(sectionList)); // pass
assertThat(sections, containsInAnyOrder(sectionList.toArray())); // pass

【讨论】：