ViaRequestTest.java

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package org.apache.hc.core5.http.protocol;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;

import org.apache.hc.core5.http.HttpHeaders;
import org.apache.hc.core5.http.HttpRequestInterceptor;
import org.apache.hc.core5.http.HttpVersion;
import org.apache.hc.core5.http.Method;
import org.apache.hc.core5.http.ProtocolException;
import org.apache.hc.core5.http.message.BasicClassicHttpRequest;
import org.apache.hc.core5.net.URIAuthority;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;


class ViaRequestTest {

    @Test
    void testViaRequestGenerated() throws Exception {

        final HttpCoreContext context = HttpCoreContext.create();
        final BasicClassicHttpRequest request = new BasicClassicHttpRequest(Method.GET, "/");
        request.setAuthority(new URIAuthority("somehost", 8888));
        context.setProtocolVersion(HttpVersion.HTTP_1_1);
        final ViaRequest interceptor = new ViaRequest();
        interceptor.process(request, request.getEntity(), context);

        assertEquals(HttpHeaders.VIA, request.getHeader(HttpHeaders.VIA).getName());
        assertNotNull(request.getHeader(HttpHeaders.VIA));
        assertEquals("HTTP 1.1 somehost:8888", request.getHeader(HttpHeaders.VIA).getValue());

    }

    @Test
    void testViaRequestGeneratedWithOutPort() throws Exception {

        final HttpCoreContext context = HttpCoreContext.create();
        final BasicClassicHttpRequest request = new BasicClassicHttpRequest(Method.GET, "/");
        request.setAuthority(new URIAuthority("somehost"));
        context.setProtocolVersion(HttpVersion.HTTP_1_1);
        final ViaRequest interceptor = new ViaRequest();
        interceptor.process(request, request.getEntity(), context);

        assertEquals(HttpHeaders.VIA, request.getHeader(HttpHeaders.VIA).getName());
        assertNotNull(request.getHeader(HttpHeaders.VIA));
        assertEquals("HTTP 1.1 somehost", request.getHeader(HttpHeaders.VIA).getValue());
    }


        @Test
    void testViaRequestInvalidHttpVersion() {
        final HttpCoreContext context = HttpCoreContext.create();
        final BasicClassicHttpRequest request = new BasicClassicHttpRequest(Method.GET, "/");
        context.setProtocolVersion(HttpVersion.HTTP_0_9);
        request.setAuthority(new URIAuthority("somehost", 8888));

        final HttpRequestInterceptor interceptor = ViaRequest.INSTANCE;
        Assertions.assertThrows(ProtocolException.class, () ->
                interceptor.process(request, request.getEntity(), context));
    }

    @Test
    void testViaRequestInvalidAuthority() {
        final HttpCoreContext context = HttpCoreContext.create();
        final BasicClassicHttpRequest request = new BasicClassicHttpRequest(Method.GET, "/");
        context.setProtocolVersion(HttpVersion.HTTP_1_1);

        final HttpRequestInterceptor interceptor = ViaRequest.INSTANCE;
        Assertions.assertThrows(ProtocolException.class, () ->
                interceptor.process(request, request.getEntity(), context));
    }

    @Test
    void testViaRequestNotCreatedAlreadyAdded() throws Exception {

        final HttpCoreContext context = HttpCoreContext.create();
        final BasicClassicHttpRequest request = new BasicClassicHttpRequest(Method.GET, "/");
        context.setProtocolVersion(HttpVersion.HTTP_1_1);
        request.setAuthority(new URIAuthority("somehost", 8888));
        final String viaValue = "HTTP 1.1 host:8888";
        request.setHeader(HttpHeaders.VIA, viaValue);
        final ViaRequest interceptor = new ViaRequest();
        interceptor.process(request, request.getEntity(), context);

        assertEquals(HttpHeaders.VIA, request.getHeader(HttpHeaders.VIA).getName());
        assertNotNull(request.getHeader(HttpHeaders.VIA));
        assertEquals(request.getHeader(HttpHeaders.VIA).getValue(), viaValue);

    }
}