StreamResultTest.java

/*
 * Copyright (c) 2001-2015, Inversoft Inc., All Rights Reserved
 *
 * 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 org.primeframework.mvc.action.result;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletResponse;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.lang.annotation.Annotation;

import org.easymock.EasyMock;
import org.primeframework.mock.servlet.MockServletOutputStream;
import org.primeframework.mvc.action.ActionInvocation;
import org.primeframework.mvc.action.ActionInvocationStore;
import org.primeframework.mvc.action.ExecuteMethodConfiguration;
import org.primeframework.mvc.action.result.annotation.Stream;
import org.primeframework.mvc.parameter.el.ExpressionEvaluator;
import org.primeframework.mvc.servlet.HTTPMethod;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;

import static org.easymock.EasyMock.*;
import static org.testng.Assert.*;

/**
 * This class tests the stream result.
 *
 * @author Brian Pontarelli
 */
public class StreamResultTest {
  @DataProvider(name= "httMethod")
  public Object[][] httpMethod() {
    return new Object[][] {{HTTPMethod.GET}, {HTTPMethod.HEAD}};
  }

  @Test(dataProvider = "httpMethod")
  public void explicit(HTTPMethod httpMethod) throws IOException, ServletException {
    Object action = new Object();
    ExpressionEvaluator ee = EasyMock.createStrictMock(ExpressionEvaluator.class);
    EasyMock.expect(ee.expand("10", action, false)).andReturn("10");
    EasyMock.expect(ee.expand("foo.zip", action, true)).andReturn("foo.zip");
    EasyMock.expect(ee.expand("application/octet-stream", action, false)).andReturn("application/octet-stream");
    EasyMock.expect(ee.getValue("stream", action)).andReturn(new ByteArrayInputStream("test".getBytes()));
    EasyMock.replay(ee);

    MockServletOutputStream sos = new MockServletOutputStream();
    HttpServletResponse response = EasyMock.createStrictMock(HttpServletResponse.class);
    response.setContentType("application/octet-stream");
    response.setContentLength(10);
    response.setHeader("Content-Disposition", "attachment; filename=\"foo.zip\"");
    EasyMock.expect(response.getOutputStream()).andReturn(sos);
    EasyMock.replay(response);

    ActionInvocationStore store = createStrictMock(ActionInvocationStore.class);
    expect(store.getCurrent()).andReturn(new ActionInvocation(action, new ExecuteMethodConfiguration(httpMethod, null, null), "/foo", "", null));
    replay(store);

    Stream stream = new StreamImpl("success", "foo.zip", "10", "application/octet-stream", "stream");
    StreamResult streamResult = new StreamResult(ee, response, store);
    streamResult.execute(stream);

    if (httpMethod == HTTPMethod.GET) {
      assertEquals(sos.toString(), "test");
      EasyMock.verify(ee, response);
    } else {
      assertEquals(sos.toString(), "");
    }

  }

  public class StreamImpl implements Stream {
    private final String code;
    private final String name;
    private final String length;
    private final String type;
    private final String property;

    public StreamImpl(String code, String name, String length, String type, String property) {
      this.code = code;
      this.name = name;
      this.length = length;
      this.type = type;
      this.property = property;
    }

    public String code() {
      return code;
    }

    public String property() {
      return property;
    }

    public String type() {
      return type;
    }

    public String length() {
      return length;
    }

    public String name() {
      return name;
    }

    public Class<? extends Annotation> annotationType() {
      return Stream.class;
    }
  }
}