com.sap.core.odata.fit.basic.BasicHttpTest.java Source code

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/*******************************************************************************
 * Copyright 2013 SAP AG
 * 
 * Licensed 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.
 ******************************************************************************/
package com.sap.core.odata.fit.basic;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.mockito.Matchers.any;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;

import java.io.IOException;
import java.net.URI;

import javax.ws.rs.HttpMethod;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpDelete;
import org.apache.http.client.methods.HttpHead;
import org.apache.http.client.methods.HttpOptions;
import org.apache.http.client.methods.HttpPatch;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.methods.HttpPut;
import org.apache.http.entity.StringEntity;
import org.junit.Test;

import com.sap.core.odata.api.commons.HttpStatusCodes;
import com.sap.core.odata.api.commons.ODataHttpMethod;
import com.sap.core.odata.api.edm.Edm;
import com.sap.core.odata.api.exception.ODataException;
import com.sap.core.odata.api.processor.ODataResponse;
import com.sap.core.odata.api.processor.ODataSingleProcessor;
import com.sap.core.odata.api.processor.part.MetadataProcessor;
import com.sap.core.odata.api.processor.part.ServiceDocumentProcessor;
import com.sap.core.odata.api.uri.info.GetMetadataUriInfo;
import com.sap.core.odata.api.uri.info.GetServiceDocumentUriInfo;
import com.sap.core.odata.testutil.helper.HttpMerge;
import com.sap.core.odata.testutil.helper.HttpSomethingUnsupported;
import com.sap.core.odata.testutil.helper.StringHelper;

/**
 * @author SAP AG
 */
public class BasicHttpTest extends AbstractBasicTest {

    @Override
    protected ODataSingleProcessor createProcessor() throws ODataException {
        final ODataSingleProcessor processor = mock(ODataSingleProcessor.class);
        when(((MetadataProcessor) processor).readMetadata(any(GetMetadataUriInfo.class), any(String.class)))
                .thenReturn(ODataResponse.entity("metadata").status(HttpStatusCodes.OK).build());
        when(((ServiceDocumentProcessor) processor).readServiceDocument(any(GetServiceDocumentUriInfo.class),
                any(String.class)))
                        .thenReturn(ODataResponse.entity("service document").status(HttpStatusCodes.OK).build());
        return processor;
    }

    @Test
    public void getServiceDocument() throws Exception {
        final HttpResponse response = executeGetRequest("/");
        assertEquals(HttpStatusCodes.OK.getStatusCode(), response.getStatusLine().getStatusCode());
        assertEquals("service document", StringHelper.inputStreamToString(response.getEntity().getContent()));
    }

    @Test
    public void getServiceDocumentWithRedirect() throws Exception {
        final HttpResponse response = executeGetRequest("");
        assertEquals(HttpStatusCodes.OK.getStatusCode(), response.getStatusLine().getStatusCode());
        assertEquals("service document", StringHelper.inputStreamToString(response.getEntity().getContent()));
    }

    @Test
    public void get() throws Exception {
        HttpResponse response = executeGetRequest("$metadata");

        assertEquals(HttpStatusCodes.OK.getStatusCode(), response.getStatusLine().getStatusCode());
        assertEquals("metadata", StringHelper.inputStreamToString(response.getEntity().getContent()));

        response = executeGetRequest("//////$metadata");
        assertEquals(HttpStatusCodes.OK.getStatusCode(), response.getStatusLine().getStatusCode());
        StringHelper.inputStreamToString(response.getEntity().getContent());
        response = executeGetRequest("/./$metadata");
        assertEquals(HttpStatusCodes.NOT_FOUND.getStatusCode(), response.getStatusLine().getStatusCode());
        StringHelper.inputStreamToString(response.getEntity().getContent());
        response = executeGetRequest("$metadata/./");
        assertEquals(HttpStatusCodes.BAD_REQUEST.getStatusCode(), response.getStatusLine().getStatusCode());
    }

    @Test
    public void put() throws Exception {
        final HttpPut put = new HttpPut(URI.create(getEndpoint().toString() + "aaa/bbb/ccc"));
        final HttpResponse response = getHttpClient().execute(put);

        assertEquals(HttpStatusCodes.NOT_FOUND.getStatusCode(), response.getStatusLine().getStatusCode());
        final String payload = StringHelper.inputStreamToString(response.getEntity().getContent());
        assertTrue(payload.contains("error"));
    }

    @Test
    public void putWithContent() throws Exception {
        final HttpPut put = new HttpPut(URI.create(getEndpoint().toString()));
        final String xml = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" + "<entry xmlns=\""
                + Edm.NAMESPACE_ATOM_2005 + "\"" + " xmlns:m=\"" + Edm.NAMESPACE_M_2007_08 + "\"" + " xmlns:d=\""
                + Edm.NAMESPACE_D_2007_08 + "\""
                + " xml:base=\"https://server.at.some.domain.com/path.to.some.service/ReferenceScenario.svc/\">"
                + "</entry>";
        final HttpEntity entity = new StringEntity(xml);
        put.setEntity(entity);
        final HttpResponse response = getHttpClient().execute(put);

        assertEquals(HttpStatusCodes.METHOD_NOT_ALLOWED.getStatusCode(), response.getStatusLine().getStatusCode());
        final String payload = StringHelper.inputStreamToString(response.getEntity().getContent());
        assertTrue(payload.contains("error"));
    }

    @Test
    public void postMethodNotAllowedWithContent() throws Exception {
        final HttpPost post = new HttpPost(URI.create(getEndpoint().toString()));
        final String xml = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" + "<entry xmlns=\""
                + Edm.NAMESPACE_ATOM_2005 + "\"" + " xmlns:m=\"" + Edm.NAMESPACE_M_2007_08 + "\"" + " xmlns:d=\""
                + Edm.NAMESPACE_D_2007_08 + "\""
                + " xml:base=\"https://server.at.some.domain.com/path.to.some.service/ReferenceScenario.svc/\">"
                + "</entry>";
        final HttpEntity entity = new StringEntity(xml);
        post.setEntity(entity);
        final HttpResponse response = getHttpClient().execute(post);

        assertEquals(HttpStatusCodes.METHOD_NOT_ALLOWED.getStatusCode(), response.getStatusLine().getStatusCode());
        final String payload = StringHelper.inputStreamToString(response.getEntity().getContent());
        assertTrue(payload.contains("error"));
    }

    @Test
    public void postNotFound() throws Exception {
        final HttpPost post = new HttpPost(URI.create(getEndpoint().toString() + "aaa/bbb/ccc"));
        final HttpResponse response = getHttpClient().execute(post);

        assertEquals(HttpStatusCodes.NOT_FOUND.getStatusCode(), response.getStatusLine().getStatusCode());
        final String payload = StringHelper.inputStreamToString(response.getEntity().getContent());
        assertTrue(payload.contains("error"));
    }

    @Test
    public void delete() throws Exception {
        final HttpDelete delete = new HttpDelete(URI.create(getEndpoint().toString() + "aaa/bbb/ccc"));
        final HttpResponse response = getHttpClient().execute(delete);

        assertEquals(HttpStatusCodes.NOT_FOUND.getStatusCode(), response.getStatusLine().getStatusCode());
        final String payload = StringHelper.inputStreamToString(response.getEntity().getContent());
        assertTrue(payload.contains("error"));
    }

    @Test
    public void merge() throws Exception {
        final HttpMerge merge = new HttpMerge(URI.create(getEndpoint().toString() + "aaa/bbb/ccc"));
        final HttpResponse response = getHttpClient().execute(merge);

        assertEquals(HttpStatusCodes.NOT_FOUND.getStatusCode(), response.getStatusLine().getStatusCode());
        final String payload = StringHelper.inputStreamToString(response.getEntity().getContent());
        assertTrue(payload.contains("error"));
    }

    @Test
    public void patch() throws Exception {
        HttpPatch get = new HttpPatch(URI.create(getEndpoint().toString() + "aaa/bbb/ccc"));
        final HttpResponse response = getHttpClient().execute(get);

        assertEquals(HttpStatusCodes.NOT_FOUND.getStatusCode(), response.getStatusLine().getStatusCode());
        final String payload = StringHelper.inputStreamToString(response.getEntity().getContent());
        assertTrue(payload.contains("error"));
    }

    @Test
    public void unsupportedMethod() throws Exception {
        HttpResponse response = getHttpClient().execute(new HttpHead(getEndpoint()));
        assertEquals(HttpStatusCodes.NOT_IMPLEMENTED.getStatusCode(), response.getStatusLine().getStatusCode());

        response = getHttpClient().execute(new HttpOptions(getEndpoint()));
        assertEquals(HttpStatusCodes.NOT_IMPLEMENTED.getStatusCode(), response.getStatusLine().getStatusCode());
    }

    @Test
    public void unknownMethod() throws Exception {
        HttpSomethingUnsupported request = new HttpSomethingUnsupported(getEndpoint() + "aaa/bbb/ccc");
        final HttpResponse response = getHttpClient().execute(request);
        assertEquals(HttpStatusCodes.METHOD_NOT_ALLOWED.getStatusCode(), response.getStatusLine().getStatusCode());
    }

    @Test
    public void tunneledByPost() throws Exception {
        tunnelPost("X-HTTP-Method", ODataHttpMethod.MERGE);
        tunnelPost("X-HTTP-Method", ODataHttpMethod.PATCH);
        tunnelPost("X-HTTP-Method", ODataHttpMethod.DELETE);
        tunnelPost("X-HTTP-Method", ODataHttpMethod.PUT);
        tunnelPost("X-HTTP-Method", ODataHttpMethod.GET);
        tunnelPost("X-HTTP-Method", ODataHttpMethod.POST);

        tunnelPost("X-HTTP-Method-Override", ODataHttpMethod.MERGE);
        tunnelPost("X-HTTP-Method-Override", ODataHttpMethod.PATCH);
        tunnelPost("X-HTTP-Method-Override", ODataHttpMethod.DELETE);
        tunnelPost("X-HTTP-Method-Override", ODataHttpMethod.PUT);
        tunnelPost("X-HTTP-Method-Override", ODataHttpMethod.GET);
        tunnelPost("X-HTTP-Method-Override", ODataHttpMethod.POST);
    }

    private void tunnelPost(final String header, final ODataHttpMethod method) throws IOException {
        tunnelPost(header, method.toString(), HttpStatusCodes.NOT_FOUND);
    }

    private void tunnelPost(final String header, final String method, final HttpStatusCodes expectedStatus)
            throws IOException {
        HttpPost post = new HttpPost(URI.create(getEndpoint().toString() + "aaa/bbb/ccc"));
        post.setHeader(header, method);
        final HttpResponse response = getHttpClient().execute(post);
        assertEquals(expectedStatus.getStatusCode(), response.getStatusLine().getStatusCode());

        final String payload = StringHelper.inputStreamToString(response.getEntity().getContent());
        assertTrue(payload.contains("error"));
    }

    @Test
    public void tunneledBadRequest() throws Exception {
        final HttpPost post = new HttpPost(URI.create(getEndpoint().toString() + "aaa/bbb/ccc"));
        post.setHeader("X-HTTP-Method", "MERGE");
        post.setHeader("X-HTTP-Method-Override", "PATCH");
        final HttpResponse response = getHttpClient().execute(post);
        assertEquals(HttpStatusCodes.BAD_REQUEST.getStatusCode(), response.getStatusLine().getStatusCode());

        final String payload = StringHelper.inputStreamToString(response.getEntity().getContent());
        assertTrue(payload.contains("error"));
    }

    @Test
    public void tunneledUnsupportedMethod() throws Exception {
        tunnelPost("X-HTTP-Method", HttpMethod.HEAD, HttpStatusCodes.NOT_IMPLEMENTED);
        tunnelPost("X-HTTP-Method-Override", HttpMethod.HEAD, HttpStatusCodes.NOT_IMPLEMENTED);
        tunnelPost("X-HTTP-Method", HttpMethod.OPTIONS, HttpStatusCodes.NOT_IMPLEMENTED);
        tunnelPost("X-HTTP-Method-Override", HttpMethod.OPTIONS, HttpStatusCodes.NOT_IMPLEMENTED);
    }

    @Test
    public void tunneledUnknownMethod() throws Exception {
        tunnelPost("X-HTTP-Method", "xxx", HttpStatusCodes.NOT_IMPLEMENTED);
    }

    @Test
    public void tunneledUnknownMethodOverride() throws Exception {
        tunnelPost("X-HTTP-Method-Override", "xxx", HttpStatusCodes.METHOD_NOT_ALLOWED);
    }
}