TestHttpClientBuilderInterceptors.java

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package org.apache.hc.client5.testing.sync;

import org.apache.hc.client5.http.classic.methods.HttpPost;
import org.apache.hc.client5.testing.extension.sync.ClientProtocolLevel;
import org.apache.hc.client5.testing.extension.sync.TestClient;
import org.apache.hc.core5.http.ClassicHttpRequest;
import org.apache.hc.core5.http.Header;
import org.apache.hc.core5.http.HttpHost;
import org.apache.hc.core5.http.HttpResponse;
import org.apache.hc.core5.http.URIScheme;
import org.apache.hc.core5.http.io.entity.EntityUtils;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

@SuppressWarnings("boxing") // test code
class TestHttpClientBuilderInterceptors extends AbstractIntegrationTestBase {

    public TestHttpClientBuilderInterceptors() {
        super(URIScheme.HTTP, ClientProtocolLevel.STANDARD);
    }

    @BeforeEach
    void before() {
        configureServer(bootstrap -> bootstrap
                .register("/test", (request, response, context) -> {
                    final Header testInterceptorHeader = request.getHeader("X-Test-Interceptor");
                    if (testInterceptorHeader != null) {
                        response.setHeader(testInterceptorHeader);
                    }
                    response.setCode(200);
                }));
        configureClient(builder -> builder
                .addExecInterceptorLast("test-interceptor", (request, scope, chain) -> {
                    request.setHeader("X-Test-Interceptor", "active");
                    return chain.proceed(request, scope);
                }));
    }

    @Test
    void testAddExecInterceptorLastShouldBeExecuted() throws Exception {
        final HttpHost httpHost = startServer();
        final TestClient client = client();
        final ClassicHttpRequest request = new HttpPost("/test");
        final HttpResponse response = client.execute(httpHost, request, httpResponse -> {
            EntityUtils.consume(httpResponse.getEntity());
            return httpResponse;
        });
        Assertions.assertEquals(200, response.getCode());
        final Header testFilterHeader = response.getHeader("X-Test-Interceptor");
        Assertions.assertNotNull(testFilterHeader);
    }

}