API automation

GET read   POST create(201)   PUT replace
PATCH partial   DELETE remove(200/204)
200 OK   201 Created   400 bad request
401/403 auth   404 not found   5xx server broke
4xx -> suspect client.  5xx -> suspect server.

given()
  .baseUri("https://jsonplaceholder.typicode.com")
.when()
  .get("/users/1")
.then()
  .statusCode(200)
  .body("name", equalTo("Leanne Graham"))
  .body("address.city", equalTo("Gwenborough"));

int id = given()
  .header("Content-Type", "application/json")
  .body("""{ "title": "x", "userId": 7 }""")
.when().post("/posts")
.then().statusCode(201)
  .extract().path("id");     // use in the next call

equalTo(x)  containsString("@")  notNullValue()
greaterThan(0)  hasSize(5)
body("$", hasSize(10))     // $ = whole response
body("[0].email", ...)     // first array element

.then().log().all()    // prints request + response
// path() returns typed values: JSON numbers -> int

given()
  .queryParam("page", 2)              // ?page=2
  .pathParam("id", 7)
  .header("Authorization", "Bearer " + token)
  .auth().preemptive().basic("user", "pass")
.when().get("/posts/{id}")

.when().put("/posts/1")     full replace    expect 200
.when().patch("/posts/1")   partial update  expect 200
.when().delete("/posts/1")  remove          expect 200/204
.then().time(lessThan(2000L))   // response-time check

• rest-assured 6.0.0, scope test
• Declare rest-assured BEFORE junit-jupiter (Hamcrest)
• imports: io.restassured.RestAssured.* + org.hamcrest.Matchers.*