REST Assured: полное руководство по тестированию API на Java

1<dependency>
2    <groupId>io.rest-assured</groupId>
3    <artifactId>rest-assured</artifactId>
4    <version>5.4.0</version>
5    <scope>test</scope>
6</dependency>

1import static io.restassured.RestAssured.*;
2import static org.hamcrest.Matchers.*;
3
4@Test
5public void getUsers() {
6    given()
7        .baseUri("https://api.example.com")
8        .header("Authorization", "Bearer token")
9    .when()
10        .get("/users")
11    .then()
12        .statusCode(200)
13        .body("users.size()", greaterThan(0))
14        .body("users[0].email", notNullValue());
15}

1@Test
2public void validateUserResponse() {
3    given()
4        .pathParam("id", 1)
5    .when()
6        .get("/users/{id}")
7    .then()
8        .statusCode(200)
9        .body("id", equalTo(1))
10        .body("name", not(emptyString()))
11        .body("email", containsString("@"))
12        .body("role", oneOf("admin", "user", "moderator"));
13}

1public class ApiConfig {
2    public static RequestSpecification requestSpec() {
3        return new RequestSpecBuilder()
4            .setBaseUri("https://api.example.com")
5            .setContentType(ContentType.JSON)
6            .addHeader("Authorization", "Bearer " + getToken())
7            .build();
8    }
9
10    public static ResponseSpecification responseSpec() {
11        return new ResponseSpecBuilder()
12            .expectStatusCode(200)
13            .expectContentType(ContentType.JSON)
14            .build();
15    }
16}
17
18// Использование в тестах
19@Test
20public void getUser() {
21    given()
22        .spec(ApiConfig.requestSpec())
23    .when()
24        .get("/users/1")
25    .then()
26        .spec(ApiConfig.responseSpec())
27        .body("name", notNullValue());
28}

1// POJO класс
2public class User {
3    private int id;
4    private String name;
5    private String email;
6    // getters, setters
7}
8
9// Десериализация
10@Test
11public void deserializeUser() {
12    User user = given()
13        .spec(requestSpec)
14    .when()
15        .get("/users/1")
16    .then()
17        .statusCode(200)
18        .extract()
19        .as(User.class);
20
21    assertThat(user.getName()).isNotEmpty();
22    assertThat(user.getEmail()).contains("@");
23}