checkCeo.java

@Test
public void getCompanyData_checkCeo_shouldBeElonMusk() {

    GraphQLQuery query = new GraphQLQuery();
    query.setQuery("{ company { name ceo coo } }");

    given().
        contentType(ContentType.JSON).
        body(query).
    when().
        post("https://api.spacex.land/graphql/").
    then().
        assertThat().
        statusCode(200).
    and().
        body("data.company.ceo", equalTo("Elon Musk"));
 }