package com.baeldung.web;

import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.doNothing;
import static org.mockito.Mockito.when;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;

import java.util.Collections;

import org.hamcrest.Matchers;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
import org.springframework.boot.test.mock.mockito.MockBean;
import org.springframework.context.ApplicationEventPublisher;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageImpl;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.web.servlet.MockMvc;

import com.baeldung.persistence.model.Foo;
import com.baeldung.persistence.service.IFooService;
import com.baeldung.web.controller.FooController;
import com.baeldung.web.hateoas.event.PaginatedResultsRetrievedEvent;

/**
 * 
 *  We'll start only the web layer.
 *
 */
@RunWith(SpringRunner.class)
@WebMvcTest(FooController.class)
public class FooControllerWebLayerIntegrationTest {

    @Autowired
    private MockMvc mockMvc;

    @MockBean
    private IFooService service;

    @MockBean
    private ApplicationEventPublisher publisher;

    @Test()
    public void givenPresentFoo_whenFindPaginatedRequest_thenPageWithFooRetrieved() throws Exception {
        Page<Foo> page = new PageImpl<>(Collections.singletonList(new Foo("fooName")));
        when(service.findPaginated(0, 2)).thenReturn(page);
        doNothing().when(publisher)
            .publishEvent(any(PaginatedResultsRetrievedEvent.class));

        this.mockMvc.perform(get("/foos").param("page", "0")
            .param("size", "2"))
            .andExpect(status().isOk())
            .andExpect(jsonPath("$",Matchers.hasSize(1)));
    }

}