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WebApplicationContext is required

Referente ao curso Spring MVC II: Integração, cache, segurança e templates, no capítulo Testando a aplicação e atividade Testando Controllers

por Marco Antonio Pereira Esteves
| 124.8k xp | 12 posts

Ao rodar o teste recebo essa exceção:

java.lang.IllegalArgumentException: WebApplicationContext is required
    at org.springframework.util.Assert.notNull(Assert.java:112)
    at org.springframework.test.web.servlet.setup.DefaultMockMvcBuilder.<init>(DefaultMockMvcBuilder.java:40)
    at org.springframework.test.web.servlet.setup.MockMvcBuilders.webAppContextSetup(MockMvcBuilders.java:46)
    at br.com.casadocodigo.loja.controllers.ProdutosControllerTest.setup(ProdutosControllerTest.java:33)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:24)
    at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:72)
    at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:81)
    at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:216)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:82)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
    at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:60)
    at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:67)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:162)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:89)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:41)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:542)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:770)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:464)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:210)
2 respostas
por Marco Antonio Pereira Esteves
| 124.8k xp | 12 posts

Minha classe ProdutosControllerTest está assim:

package br.com.casadocodigo.loja.controllers;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.test.context.ActiveProfiles;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.web.WebAppConfiguration;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
import org.springframework.test.web.servlet.result.MockMvcResultMatchers;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;
import org.springframework.web.context.WebApplicationContext;

import br.com.casadocodigo.loja.conf.AppWebConfiguration;
import br.com.casadocodigo.loja.conf.DataSourceConfigurationTest;
import br.com.casadocodigo.loja.conf.JPAConfiguration;

@RunWith(SpringJUnit4ClassRunner.class)
@WebAppConfiguration
@ContextConfiguration(classes= {JPAConfiguration.class, AppWebConfiguration.class,
        DataSourceConfigurationTest.class})
@ActiveProfiles("test")
public class ProdutosControllerTest {

    private WebApplicationContext wac;

    private MockMvc mockMvc;

    @Before
    public void setup() {
        this.mockMvc = MockMvcBuilders.webAppContextSetup(wac).build();
    }

    @Test
    public void deveRetornarParaHomeComOsLivros() throws Exception {
        mockMvc.perform(MockMvcRequestBuilders.get("/"))
        .andExpect(MockMvcResultMatchers.model().attributeExists("produtos"))
            .andExpect(MockMvcResultMatchers
                .forwardedUrl("/WEB-INF/views/home.jsp"));
    }


}
solução!
por Geovani Granieri
| 909.1k xp | 1038 posts
Instrutor

Olá Marco, tudo bem com você?

Para corrigir isso é bem simples, veja:

    private WebApplicationContext wac;

Faltou pedir para o Spring fazer a injeção de dependências para nós com o @Autorwired, então adicionando:

@Autowired 
    private WebApplicationContext wac;

Teremos um contexto, e nosso código estará funcionando normalmente :)

Abraços e Bons Estudos!