RestAssured: How to check the length of json array response?

RestAssured: How to check the length of json array response?

In RestAssured, you can check the length of a JSON array response by extracting the array and then using assertions to verify its size. Here's how you can do it:

Assuming you have a JSON response like this:

{ "data": [ {"id": 1, "name": "John"}, {"id": 2, "name": "Alice"}, {"id": 3, "name": "Bob"} ] }

You can check the length of the "data" array using RestAssured as follows:

import io.restassured.RestAssured; import static io.restassured.RestAssured.*; import static org.hamcrest.Matchers.*; public class TestClass { public static void main(String[] args) { // Base URI RestAssured.baseURI = "https://api.example.com"; // Send GET request and extract response String response = given() .when() .get("/endpoint") .then() .statusCode(200) .extract() .asString(); // Check the length of the JSON array given() .contentType("application/json") .body(response) .when() .get() .then() .assertThat() .body("data.size()", equalTo(3)); // Adjust the expected size according to your JSON array length } }

In this example:

  • We first send a GET request to the endpoint and extract the response as a string.
  • Then, we use RestAssured's body("data.size()", equalTo(expectedSize)) assertion to check if the size of the "data" array in the JSON response matches the expected size.

Replace "https://api.example.com" with your actual base URI and "/endpoint" with the endpoint you are testing. Adjust the expected size (equalTo(3)) according to the length of your JSON array.

Examples

  1. RestAssured check JSON array response length

    • Description: How to use RestAssured to verify the length of a JSON array in the API response.
    • Code:
      given(). when(). get("/api/endpoint"). then(). assertThat(). body("data.size()", equalTo(5));

  2. RestAssured assert JSON array length

    • Description: Implementing an assertion in RestAssured to check the length of a JSON array returned by the API.
    • Code:
      given(). when(). get("/api/endpoint"). then(). assertThat(). body("data.size()", greaterThan(0));

  3. RestAssured validate JSON array response size

    • Description: Validating the size of a JSON array response using RestAssured library in Java.
    • Code:
      given(). when(). get("/api/endpoint"). then(). assertThat(). body("data.size()", lessThanOrEqualTo(10));

  4. How to check JSON array length in RestAssured

    • Description: A guide on checking the length of a JSON array response using RestAssured framework.
    • Code:
      given(). when(). get("/api/endpoint"). then(). assertThat(). body("data.size()", equalTo(3));

  5. RestAssured verify JSON array size

    • Description: Verifying the size of a JSON array in the response using RestAssured assertions.
    • Code:
      given(). when(). get("/api/endpoint"). then(). assertThat(). body("data.size()", greaterThanOrEqualTo(2));

  6. RestAssured check length of array in JSON response

    • Description: Checking the length of an array within a JSON response using RestAssured library.
    • Code:
      given(). when(). get("/api/endpoint"). then(). assertThat(). body("data.size()", equalTo(4));

  7. Validate JSON array size with RestAssured

    • Description: Validating the size of a JSON array response using RestAssured library in Java.
    • Code:
      given(). when(). get("/api/endpoint"). then(). assertThat(). body("data.size()", lessThan(20));

  8. RestAssured assert JSON array size

    • Description: Asserting the size of a JSON array returned in the API response using RestAssured.
    • Code:
      given(). when(). get("/api/endpoint"). then(). assertThat(). body("data.size()", equalTo(6));

  9. RestAssured validate JSON array length

    • Description: How to validate the length of a JSON array response using RestAssured library.
    • Code:
      given(). when(). get("/api/endpoint"). then(). assertThat(). body("data.size()", greaterThan(1));

  10. RestAssured check size of JSON array response

    • Description: Checking the size of a JSON array returned in the API response using RestAssured assertions.
    • Code:
      given(). when(). get("/api/endpoint"). then(). assertThat(). body("data.size()", equalTo(7));

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