EntityManagerTest.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.
 */
package org.apache.falcon.resource;

import org.apache.falcon.FalconWebException;
import org.apache.falcon.entity.v0.EntityType;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import org.testng.Assert;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;

import javax.servlet.ServletInputStream;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;
import java.io.InputStream;

import static org.mockito.Mockito.when;

/**
 * Unit testing class for AbstractEntityManager class for testing APIs/methods in it.
 */
public class EntityManagerTest extends AbstractEntityManager {

    @Mock
    private HttpServletRequest mockHttpServletRequest;

    private static final String SAMPLE_PROCESS_XML = "/process-version-0.xml";

    private static final String SAMPLE_INVALID_PROCESS_XML = "/process-invalid.xml";

    @BeforeClass
    public void init() {
        MockitoAnnotations.initMocks(this);
    }

    @SuppressWarnings("unused")
    @DataProvider(name = "validXMLServletStreamProvider")
    private Object[][] servletStreamProvider() {
        ServletInputStream validProcessXML = getServletInputStream(SAMPLE_PROCESS_XML);
        return new Object[][]{{EntityType.PROCESS, validProcessXML},
        };

    }

    /**
     * Run this testcase for different types of VALID entity xmls like process, feed, dataEndPoint.
     *
     * @param stream
     * @throws IOException
     */
    @Test(dataProvider = "validXMLServletStreamProvider")
    public void testValidateForValidEntityXML(EntityType entityType,
                                              ServletInputStream stream) throws IOException {

        when(mockHttpServletRequest.getInputStream()).thenReturn(stream);
    }

    @Test
    public void testValidateForInvalidEntityXML() throws IOException {
        ServletInputStream invalidProcessXML = getServletInputStream(SAMPLE_INVALID_PROCESS_XML);
        when(mockHttpServletRequest.getInputStream()).thenReturn(
                invalidProcessXML);

        try {
            validate(mockHttpServletRequest,
                    EntityType.PROCESS.name());
            Assert.fail("Invalid entity type was accepted by the system");
        } catch (FalconWebException ignore) {
            // ignore
        }
    }

    @Test
    public void testValidateForInvalidEntityType() throws IOException {
        ServletInputStream invalidProcessXML = getServletInputStream(SAMPLE_PROCESS_XML);
        when(mockHttpServletRequest.getInputStream()).thenReturn(
                invalidProcessXML);

        try {
            validate(mockHttpServletRequest,
                    "InvalidEntityType");
            Assert.fail("Invalid entity type was accepted by the system");
        } catch (FalconWebException ignore) {
            // ignore
        }
    }

    /**
     * Converts a InputStream into ServletInputStream.
     *
     * @param resourceName
     * @return ServletInputStream
     */
    private ServletInputStream getServletInputStream(String resourceName) {
        final InputStream stream = this.getClass().getResourceAsStream(resourceName);
        return new ServletInputStream() {

            @Override
            public int read() throws IOException {
                return stream.read();
            }
        };
    }
}