/*
 * This program is free software; you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
 * Foundation.
 *
 * You should have received a copy of the GNU Lesser General Public License along with this
 * program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
 * or from the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU Lesser General Public License for more details.
 *
 * Copyright (c) 2000 - 2015 Pentaho Corporation, Simba Management Limited and Contributors...  All rights reserved.
 */

package org.pentaho.reporting.engine.classic.core;

import static org.hamcrest.CoreMatchers.equalTo;
import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.CoreMatchers.nullValue;
import static org.junit.Assert.assertThat;
import static org.mockito.Mockito.doReturn;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;

import java.util.Collections;
import java.util.Locale;
import java.util.Map;
import java.util.TimeZone;

import org.junit.Before;
import org.junit.Test;

public class CachingReportEnvironmentTest {

  private static final String KEY = "test_key";
  private static final String VALUE = "test_val";

  private CachingReportEnvironment env;
  private ReportEnvironment backend;

  @Before
  public void setUp() {
    backend = mock( ReportEnvironment.class );
    env = new CachingReportEnvironment( backend );
  }

  @Test
  public void testGetNullEnvironmentProperty() {
    doReturn( null ).when( backend ).getEnvironmentProperty( KEY );
    Object result = env.getEnvironmentProperty( KEY );
    assertThat( result, is( nullValue() ) );

    result = env.getEnvironmentProperty( KEY );
    assertThat( (String) result, is( nullValue() ) );

    verify( backend ).getEnvironmentProperty( KEY );
  }

  @Test
  public void testGetEnvironmentProperty() {
    doReturn( VALUE ).when( backend ).getEnvironmentProperty( KEY );
    Object result = env.getEnvironmentProperty( KEY );
    assertThat( (String) result, is( equalTo( VALUE ) ) );

    result = env.getEnvironmentProperty( KEY );
    assertThat( (String) result, is( equalTo( VALUE ) ) );

    verify( backend ).getEnvironmentProperty( KEY );
  }

  @Test
  public void testGetURLEncoding() {
    doReturn( VALUE ).when( backend ).getURLEncoding();
    String result = env.getURLEncoding();
    assertThat( result, is( equalTo( VALUE ) ) );

    result = env.getURLEncoding();
    assertThat( result, is( equalTo( VALUE ) ) );

    verify( backend ).getURLEncoding();
  }

  @Test
  public void testGetLocale() {
    Locale locale = new Locale( "test_test" );
    doReturn( locale ).when( backend ).getLocale();
    Locale result = env.getLocale();
    assertThat( result, is( equalTo( locale ) ) );

    result = env.getLocale();
    assertThat( result, is( equalTo( locale ) ) );

    verify( backend ).getLocale();
  }

  @Test
  public void testTimeZone() {
    TimeZone tz = mock( TimeZone.class );
    doReturn( tz ).when( backend ).getTimeZone();
    TimeZone result = env.getTimeZone();
    assertThat( result, is( equalTo( tz ) ) );

    result = env.getTimeZone();
    assertThat( result, is( equalTo( tz ) ) );

    verify( backend ).getTimeZone();
  }

  @Test
  public void testGetUrlExtraParameter() {
    Map<String, String[]> params = Collections.emptyMap();
    doReturn( params ).when( backend ).getUrlExtraParameter();
    Map<String, String[]> result = env.getUrlExtraParameter();
    assertThat( result, is( equalTo( params ) ) );
    verify( backend ).getUrlExtraParameter();
  }
}