/*
    * 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.commons.jexl3;
  
  import org.junit.Assert;
  import org.junit.Test;
  
  /**
   * Tests for blocks
   * @since 1.1
   */
  @SuppressWarnings({"UnnecessaryBoxing", "AssertEqualsBetweenInconvertibleTypes"})
  public class BlockTest extends JexlTestCase {
  
      /**
       * Create the test
       */
      public BlockTest() {
          super("BlockTest");
      }
  
      @Test
      public void testBlockSimple() throws Exception {
          final JexlScript e = JEXL.createScript("if (true) { 'hello'; }");
          final JexlContext jc = new MapContext();
          final Object o = e.execute(jc);
          Assert.assertEquals("Result is wrong", "hello", o);
      }
  
      @Test
      public void testBlockExecutesAll() throws Exception {
          final JexlScript e = JEXL.createScript("if (true) { x = 'Hello'; y = 'World';}");
          final JexlContext jc = new MapContext();
          final Object o = e.execute(jc);
          Assert.assertEquals("First result is wrong", "Hello", jc.get("x"));
          Assert.assertEquals("Second result is wrong", "World", jc.get("y"));
          Assert.assertEquals("Block result is wrong", "World", o);
      }
  
      @Test
      public void testEmptyBlock() throws Exception {
          final JexlScript e = JEXL.createScript("if (true) { }");
          final JexlContext jc = new MapContext();
          final Object o = e.execute(jc);
          Assert.assertNull("Result is wrong", o);
      }
  
      @Test
      public void testBlockLastExecuted01() throws Exception {
          final JexlScript e = JEXL.createScript("if (true) { x = 1; } else { x = 2; }");
          final JexlContext jc = new MapContext();
          final Object o = e.execute(jc);
          Assert.assertEquals("Block result is wrong", new Integer(1), o);
      }
  
      @Test
      public void testBlockLastExecuted02() throws Exception {
          final JexlScript e = JEXL.createScript("if (false) { x = 1; } else { x = 2; }");
          final JexlContext jc = new MapContext();
          final Object o = e.execute(jc);
          Assert.assertEquals("Block result is wrong", new Integer(2), o);
      }
  
      @Test
      public void testNestedBlock() throws Exception {
          final JexlScript e = JEXL.createScript("if (true) { x = 'hello'; y = 'world';" + " if (true) { x; } y; }");
          final JexlContext jc = new MapContext();
          final Object o = e.execute(jc);
          Assert.assertEquals("Block result is wrong", "world", o);
      }
  }