modules/binding-rest-runtime/src/test/java/org/apache/tuscany/sca/binding/rest/wireformat/json/CatalogServiceTestCase.java

/*
 * 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.
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package org.apache.tuscany.sca.binding.rest.wireformat.json;

import java.io.ByteArrayInputStream;
import java.net.Socket;

import org.apache.tuscany.sca.node.Contribution;
import org.apache.tuscany.sca.node.ContributionLocationHelper;
import org.apache.tuscany.sca.node.Node;
import org.apache.tuscany.sca.node.NodeFactory;
import org.json.JSONException;
import org.json.JSONObject;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;

import com.meterware.httpunit.GetMethodWebRequest;
import com.meterware.httpunit.PostMethodWebRequest;
import com.meterware.httpunit.WebConversation;
import com.meterware.httpunit.WebRequest;
import com.meterware.httpunit.WebResponse;

public class CatalogServiceTestCase {
    private static final String SERVICE_URL = "http://localhost:8085/Catalog";

    private static final String GET_RESPONSE =
        "{\"items\":[{\"price\":\"$1.55\",\"name\":\"Pear\"},{\"price\":\"$2.99\",\"name\":\"Apple\"},{\"price\":\"$3.55\",\"name\":\"Orange\"}]}";
    private static final String NEW_ITEM = "{\"price\":\"$4.35\",\"name\":\"Grape\"}\"";
    private static final String GET_NEW_RESPONSE =
        "{\"items\":[{\"price\":\"$1.55\",\"name\":\"Pear\"},{\"price\":\"$2.99\",\"name\":\"Apple\"},{\"price\":\"$3.55\",\"name\":\"Orange\"},{\"price\":\"$4.35\",\"name\":\"Grape\"}]}";
    private static final String UPDATED_ITEM = "{\"price\":\"$1.35\",\"name\":\"Grape\"}\"";
    private static final String GET_UPDATED_RESPONSE =
        "{\"items\":[{\"price\":\"$1.55\",\"name\":\"Pear\"},{\"price\":\"$2.99\",\"name\":\"Apple\"},{\"price\":\"$3.55\",\"name\":\"Orange\"},{\"price\":\"$1.35\",\"name\":\"Grape\"}]}";

    private static Node node;

    @BeforeClass
    public static void init() throws Exception {
        try {
            String contribution = ContributionLocationHelper.getContributionLocation(CatalogServiceTestCase.class);
            node = NodeFactory.newInstance().createNode("store.composite", new Contribution("catalog", contribution));
            node.start();
            System.out.println();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    @AfterClass
    public static void destroy() throws Exception {
        if (node != null) {
            node.stop();
        }
    }

    @Test
    public void testPing() throws Exception {
        new Socket("127.0.0.1", 8085);
        //System.in.read();
    }

    @Test
    public void testGetInvocation() throws Exception {
        WebConversation wc = new WebConversation();
        WebRequest request = new GetMethodWebRequest(SERVICE_URL);
        request.setHeaderField("Content-Type", "application/json");
        WebResponse response = wc.getResource(request);

        Assert.assertEquals(200, response.getResponseCode());
        Assert.assertNotNull(response.getText());
        Assert.assertTrue(validateJsonResponse(GET_RESPONSE, response.getText()));
    }

    @Test
    public void testGetInvocationWithFilter1() throws Exception {
        WebConversation wc = new WebConversation();
        WebRequest request = new GetMethodWebRequest(SERVICE_URL + "?excludedFields=items.price");
        request.setHeaderField("Content-Type", "application/json");
        WebResponse response = wc.getResource(request);

        Assert.assertEquals(200, response.getResponseCode());
        String json = response.getText();
        System.out.println(json);
        Assert.assertNotNull(json);
        Assert.assertTrue(json.contains("name"));
        Assert.assertFalse(json.contains("price"));
    }

    @Test
    public void testGetInvocationWithFilter2() throws Exception {
        WebConversation wc = new WebConversation();
        WebRequest request = new GetMethodWebRequest(SERVICE_URL + "?fields=items,-items.price");
        request.setHeaderField("Content-Type", "application/json");
        WebResponse response = wc.getResource(request);

        Assert.assertEquals(200, response.getResponseCode());
        String json = response.getText();
        System.out.println(json);
        Assert.assertNotNull(json);
        Assert.assertTrue(json.contains("name"));
        Assert.assertFalse(json.contains("price"));
    }

    @Test
    public void testGetInvocationWithFilter3() throws Exception {
        WebConversation wc = new WebConversation();
        WebRequest request = new GetMethodWebRequest(SERVICE_URL + "?includedFields=items.name&excludedFields=items");
        request.setHeaderField("Content-Type", "application/json");
        WebResponse response = wc.getResource(request);

        Assert.assertEquals(200, response.getResponseCode());
        String json = response.getText();
        System.out.println(json);
        Assert.assertNotNull(json);
        Assert.assertTrue(json.contains("name"));
        Assert.assertFalse(json.contains("price"));
    }

    @Test
    public void testPostInvocation() throws Exception {
        //Add new item to catalog
        WebConversation wc = new WebConversation();
        WebRequest request =
            new PostMethodWebRequest(SERVICE_URL, new ByteArrayInputStream(NEW_ITEM.getBytes("UTF-8")),
                                     "application/json");
        request.setHeaderField("Content-Type", "application/json");
        WebResponse response = wc.getResource(request);

        Assert.assertEquals(204, response.getResponseCode());

        //read new results and expect to get new item back in the response
        request = new GetMethodWebRequest(SERVICE_URL);
        request.setHeaderField("Content-Type", "application/json");
        response = wc.getResource(request);

        //for debug purposes
        //System.out.println(">>>" + GET_UPDATED_RESPONSE);
        //System.out.println(">>>" + response.getText());

        Assert.assertEquals(200, response.getResponseCode());
        Assert.assertNotNull(response.getText());
        Assert.assertTrue(validateJsonResponse(GET_NEW_RESPONSE, response.getText()));
    }

    @Test
    public void testPutInvocation() throws Exception {
        //Add new item to catalog
        WebConversation wc = new WebConversation();
        WebRequest request =
            new PostMethodWebRequest(SERVICE_URL, new ByteArrayInputStream(UPDATED_ITEM.getBytes("UTF-8")),
                                     "application/json");
        request.setHeaderField("Content-Type", "application/json");
        WebResponse response = wc.getResource(request);

        Assert.assertEquals(204, response.getResponseCode());

        //read new results and expect to get new item back in the response
        request = new GetMethodWebRequest(SERVICE_URL);
        request.setHeaderField("Content-Type", "application/json");
        response = wc.getResource(request);

        //for debug purposes
        //System.out.println(">>>" + GET_UPDATED_RESPONSE);
        //System.out.println(">>>" + response.getText());

        Assert.assertEquals(200, response.getResponseCode());
        Assert.assertNotNull(response.getText());
        Assert.assertTrue(validateJsonResponse(GET_UPDATED_RESPONSE, response.getText()));
    }

    private boolean validateJsonResponse(String expected, String actual) throws JSONException {
        JSONObject jsonExpected = new JSONObject(expected);
        JSONObject jsonActual = new JSONObject(actual);

        if (jsonExpected.getJSONArray("items").length() != jsonActual.getJSONArray("items").length()) {
            return false;
        }

        return true;

    }
}