TestH2RequestConformance.java

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package org.apache.hc.core5.http2.protocol;

import org.apache.hc.core5.http.HttpHeaders;
import org.apache.hc.core5.http.HttpRequest;
import org.apache.hc.core5.http.ProtocolException;
import org.apache.hc.core5.http.message.BasicHttpRequest;
import org.apache.hc.core5.http.protocol.HttpCoreContext;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;

class TestH2RequestConformance {

    @Test
    void testTEAbsent() throws Exception {
        final HttpRequest request = new BasicHttpRequest("GET", "/");
        H2RequestConformance.INSTANCE.process(request, null, HttpCoreContext.create());
    }

    @Test
    void testTESingleTrailers() throws Exception {
        final HttpRequest request = new BasicHttpRequest("GET", "/");
        request.addHeader(HttpHeaders.TE, "trailers");
        H2RequestConformance.INSTANCE.process(request, null, HttpCoreContext.create());
    }

    @Test
    void testTECombinedTokensRejected() {
        final HttpRequest request = new BasicHttpRequest("GET", "/");
        request.addHeader(HttpHeaders.TE, "trailers, gzip");

        Assertions.assertThrows(ProtocolException.class,
                () -> H2RequestConformance.INSTANCE.process(request, null, HttpCoreContext.create()));
    }

    @Test
    void testTEMultipleHeadersSecondIllegalRejected() {
        final HttpRequest request = new BasicHttpRequest("GET", "/");
        request.addHeader(HttpHeaders.TE, "trailers");
        request.addHeader(HttpHeaders.TE, "gzip");

        Assertions.assertThrows(ProtocolException.class,
                () -> H2RequestConformance.INSTANCE.process(request, null, HttpCoreContext.create()));
    }

    @Test
    void testTEMultipleHeadersAllTrailersAccepted() throws Exception {
        final HttpRequest request = new BasicHttpRequest("GET", "/");
        request.addHeader(HttpHeaders.TE, "trailers");
        request.addHeader(HttpHeaders.TE, "trailers");

        H2RequestConformance.INSTANCE.process(request, null, HttpCoreContext.create());
    }

    @Test
    void testTEWhitespaceAccepted() throws Exception {
        final HttpRequest request = new BasicHttpRequest("GET", "/");
        request.addHeader(HttpHeaders.TE, "  trailers \t");

        H2RequestConformance.INSTANCE.process(request, null, HttpCoreContext.create());
    }

    @Test
    void testTESingleTrailersAllowed() throws Exception {
        final HttpRequest request = new BasicHttpRequest("GET", "/");
        request.addHeader(HttpHeaders.TE, "trailers");
        H2RequestConformance.INSTANCE.process(request, null, HttpCoreContext.create());
    }

    @Test
    void testTECommaListRejected() {
        final HttpRequest request = new BasicHttpRequest("GET", "/");
        request.addHeader(HttpHeaders.TE, "trailers, deflate;q=0.5");

        Assertions.assertThrows(ProtocolException.class,
                () -> H2RequestConformance.INSTANCE.process(request, null, HttpCoreContext.create()));
    }


    @Test
    void testTEMultipleHeadersAllTrailersAllowed() throws Exception {
        final HttpRequest request = new BasicHttpRequest("GET", "/");
        request.addHeader(HttpHeaders.TE, "trailers");
        request.addHeader(HttpHeaders.TE, "trailers");

        H2RequestConformance.INSTANCE.process(request, null, HttpCoreContext.create());
    }


    @Test
    void testTEEmptyValueRejected() {
        final HttpRequest request = new BasicHttpRequest("GET", "/");
        request.addHeader(HttpHeaders.TE, "");

        Assertions.assertThrows(ProtocolException.class,
                () -> H2RequestConformance.INSTANCE.process(request, null, HttpCoreContext.create()));
    }
}