Spring Security: Adding Access Token in all requests via MockMvcBuilderCustomizer

AddsAccessTokenHeaderMockMvcConfigurer.java

package br.com.zup.edu.livraria;

import org.springframework.boot.test.autoconfigure.web.servlet.MockMvcBuilderCustomizer;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.test.web.servlet.request.MockHttpServletRequestBuilder;
import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
import org.springframework.test.web.servlet.setup.ConfigurableMockMvcBuilder;

import static org.springframework.security.test.web.servlet.request.SecurityMockMvcRequestPostProcessors.jwt;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;

@Configuration
public class AddsAccessTokenHeaderMockMvcConfigurer implements MockMvcBuilderCustomizer {

    @Override
    public void customize(ConfigurableMockMvcBuilder<?> builder) {
        builder.defaultRequest(get("/any-uri-because-it-will-be-overridden") // the URI does not matter
                .with(jwt()
                        .authorities(
                                new SimpleGrantedAuthority("SCOPE_authors:read"),
                                new SimpleGrantedAuthority("SCOPE_authors:write")
                        )
                ));
    }
}