java - 即使期望值和实际值相同，也会出现断言错误

在以下断言错误中需要帮助。
当我进行以下API调用时，尽管实际值和预期值都相同，但我却收到了此异常。

import com.jayway.restassured.RestAssured;
import com.jayway.restassured.RestAssured.*;
import com.jayway.restassured.matcher.RestAssuredMatchers.*;
import org.hamcrest.Matchers.*;
import static org.hamcrest.Matchers.*;


public class firstRestCall
{
    public static void main(String[] args)
    {

        RestAssured.get("http://restcountries.eu/rest/v1/name/Norway").
        then().
        body("capital",equalTo("Oslo"));
        //body("capital",equalTo("[Oslo]"));  tried this also, but getting the same exception
    }
}

输出:

Exception in thread "main" java.lang.AssertionError: 1 expectation failed.
JSON path capital doesn't match.
Expected: Oslo
  Actual: [Oslo]

    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) etc....

最佳答案

capital可能返回多个值(值列表)，因此您应该使用hasItem Hamcrest匹配器:

RestAssured.get("http://restcountries.eu/rest/v1/name/Norway").
        then().
        body("capital",hasItem("Oslo"));