httpclient5/src/test/java/org/apache/hc/client5/http/impl/classic/TestCloseableHttpClient.java

/*
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 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
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 */
package org.apache.hc.client5.http.impl.classic;

import java.io.IOException;
import java.io.InputStream;

import org.apache.hc.client5.http.classic.methods.HttpGet;
import org.apache.hc.core5.http.ClassicHttpRequest;
import org.apache.hc.core5.http.ClassicHttpResponse;
import org.apache.hc.core5.http.HttpEntity;
import org.apache.hc.core5.http.HttpHost;
import org.apache.hc.core5.http.HttpResponse;
import org.apache.hc.core5.http.io.HttpClientResponseHandler;
import org.apache.hc.core5.http.protocol.HttpContext;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.mockito.Mockito;

/**
 *  Simple tests for {@link CloseableHttpClient}.
 */
@SuppressWarnings({"boxing","static-access"}) // test code
public class TestCloseableHttpClient {

    static abstract class NoopCloseableHttpClient extends CloseableHttpClient {

        @Override
        protected CloseableHttpResponse doExecute(
                final HttpHost target,
                final ClassicHttpRequest request,
                final HttpContext context) throws IOException {
            return null;
        }

    }

    private NoopCloseableHttpClient client;
    private InputStream content;
    private HttpEntity entity;
    private ClassicHttpResponse originResponse;
    private CloseableHttpResponse response;

    @BeforeEach
    public void setup() throws Exception {
        content = Mockito.mock(InputStream.class);
        entity = Mockito.mock(HttpEntity.class);
        originResponse = Mockito.mock(ClassicHttpResponse.class);
        response = CloseableHttpResponse.adapt(originResponse);
        Mockito.when(entity.getContent()).thenReturn(content);
        Mockito.when(entity.isStreaming()).thenReturn(Boolean.TRUE);
        Mockito.when(response.getEntity()).thenReturn(entity);
        client = Mockito.mock(NoopCloseableHttpClient.class, Mockito.CALLS_REAL_METHODS);
    }

    @Test
    public void testExecuteRequestAbsoluteURI() throws Exception {
        final HttpGet httpget = new HttpGet("https://somehost:444/stuff");
        Mockito.when(client.doExecute(
                Mockito.any(), Mockito.any(), Mockito.any())).thenReturn(response);
        client.execute(httpget, response -> null);

        Mockito.verify(client).doExecute(
                Mockito.eq(new HttpHost("https", "somehost", 444)),
                Mockito.same(httpget),
                (HttpContext) Mockito.isNull());
    }

    @Test
    public void testExecuteRequestRelativeURI() throws Exception {
        final HttpGet httpget = new HttpGet("/stuff");
        Mockito.when(client.doExecute(
                Mockito.any(), Mockito.any(), Mockito.any())).thenReturn(response);
        client.execute(httpget, response -> null);

        Mockito.verify(client).doExecute(
                (HttpHost) Mockito.isNull(),
                Mockito.same(httpget),
                (HttpContext) Mockito.isNull());
    }

    @Test
    public void testExecuteRequestHandleResponse() throws Exception {
        final HttpGet httpget = new HttpGet("https://somehost:444/stuff");

        Mockito.when(client.doExecute(
                new HttpHost("https", "somehost", 444), httpget, null)).thenReturn(response);

        final HttpClientResponseHandler<HttpResponse> handler = Mockito.mock(HttpClientResponseHandler.class);

        client.execute(httpget, handler);

        Mockito.verify(client).doExecute(
                Mockito.eq(new HttpHost("https", "somehost", 444)),
                Mockito.same(httpget),
                (HttpContext) Mockito.isNull());
        Mockito.verify(handler).handleResponse(response);
        Mockito.verify(content).close();
    }

    @Test
    public void testExecuteRequestHandleResponseIOException() throws Exception {
        final HttpGet httpget = new HttpGet("https://somehost:444/stuff");

        Mockito.when(client.doExecute(
                new HttpHost("https", "somehost", 444), httpget, null)).thenReturn(response);

        final HttpClientResponseHandler<HttpResponse> handler = Mockito.mock(HttpClientResponseHandler.class);

        Mockito.when(handler.handleResponse(response)).thenThrow(new IOException());

        Assertions.assertThrows(IOException.class, () ->
            client.execute(httpget, handler));
        Mockito.verify(client).doExecute(
                Mockito.eq(new HttpHost("https", "somehost", 444)),
                Mockito.same(httpget),
                (HttpContext) Mockito.isNull());
        Mockito.verify(originResponse).close();
    }

    @Test
    public void testExecuteRequestHandleResponseHttpException() throws Exception {
        final HttpGet httpget = new HttpGet("https://somehost:444/stuff");

        Mockito.when(client.doExecute(
                new HttpHost("https", "somehost", 444), httpget, null)).thenReturn(response);

        final HttpClientResponseHandler<HttpResponse> handler = Mockito.mock(HttpClientResponseHandler.class);

        Mockito.when(handler.handleResponse(response)).thenThrow(new RuntimeException());

        Assertions.assertThrows(RuntimeException.class, () ->
                client.execute(httpget, handler));
        Mockito.verify(client).doExecute(
                Mockito.eq(new HttpHost("https", "somehost", 444)),
                Mockito.same(httpget),
                (HttpContext) Mockito.isNull());
        Mockito.verify(originResponse).close();
    }

}