使用mockito模拟Unirest

import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

public class HttpClient {
    public String fetchData(String url) throws Exception {
        HttpResponse<String> response = Unirest.get(url).asString();
        return response.getBody();
    }
}

<dependency>
    <groupId>org.mockito</groupId>
    <artifactId>mockito-core</artifactId>
    <version>4.0.0</version>
    <scope>test</scope>
</dependency>
<dependency>
    <groupId>com.mashape.unirest</groupId>
    <artifactId>unirest-java</artifactId>
    <version>1.4.9</version>
</dependency>

import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.mockito.Mockito;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.mockito.ArgumentMatchers.anyString;
import static org.mockito.Mockito.when;

public class HttpClientTest {

    private HttpClient httpClient;
    private Unirest unirest;

    @BeforeEach
    public void setUp() {
        unirest = Mockito.mock(Unirest.class);
        httpClient = new HttpClient() {
            @Override
            protected Unirest getUnirest() {
                return unirest;
            }
        };
    }

    @Test
    public void testFetchData() throws Exception {
        String url = "https://example.com/data";
        String expectedResponse = "{\"key\":\"value\"}";

        HttpResponse<String> mockResponse = Mockito.mock(HttpResponse.class);
        when(mockResponse.getBody()).thenReturn(expectedResponse);

        when(unirest.get(anyString())).thenReturn(mockResponse);

        String actualResponse = httpClient.fetchData(url);
        assertEquals(expectedResponse, actualResponse);
    }
}