SampleControllerTest.java

package com.github.signed.sandboxes.spring.boot;

import org.hamcrest.Matchers;
import org.junit.Rule;
import org.junit.Test;
import retrofit.client.Response;

import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.containsString;

public class SampleControllerTest {

    @Rule
    public final SpringApplicationRule springApplication = new SpringApplicationRule();

    @Test
    public void can_retrieve_content_from_rest() throws Exception {
        Response response = springApplication.client(Client.class).get();

        assertThat(response.getStatus(), is(200));
        assertThat(response.getBody().mimeType(), containsString("charset=UTF-8"));
        assertThat(Responses.readBodyAsUtf8String(response), Matchers.endsWith("Hello World!"));
    }

    @Test
    public void replace_bean_implementation() throws Exception {
        String messageFromCollaborator = Responses.readBodyAsUtf8String(this.springApplication.client(Client.class).getInjected());

        assertThat(messageFromCollaborator, is("Hello kind person"));
    }
}