我们如何在Java上为callfire-api-client编写单元/集成测试？

<dependency>
    <groupId>com.callfire</groupId>
    <artifactId>callfire-api-client</artifactId>
    <version>1.6.0</version>
</dependency>

import com.callfire.api.client.CallfireClient;
import com.callfire.api.client.api.common.model.ResourceId;
import com.callfire.api.client.api.texts.model.SendTextsRequest;
import com.callfire.api.client.api.texts.model.Text;
import org.junit.Test;

public class CallfireApiClientTest {

    @Test
    public void testSendTexts() {
        // 创建CallfireClient实例
        CallfireClient client = new CallfireClient("YOUR_API_LOGIN", "YOUR_API_PASSWORD");

        // 创建发送短信请求
        SendTextsRequest request = new SendTextsRequest();
        request.setTexts(Arrays.asList(
            new Text().setMessage("Hello, World!").setTo("15551234567"),
            new Text().setMessage("Hi there!").setTo("15557654321")
        ));

        // 发送短信
        ResourceId resourceId = client.textsApi().send(request);

        // 验证发送是否成功
        assertNotNull(resourceId.getId());
    }
}