/*
    * 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 java.util.Arrays;
  import java.util.List;
  import org.junit.Assert;
  import org.junit.Test;
  
  /**
   * Tests for array literals.
   * @since 2.0
   */
  @SuppressWarnings({"UnnecessaryBoxing", "AssertEqualsBetweenInconvertibleTypes"})
  public class ArrayLiteralTest extends JexlTestCase {
  
      public ArrayLiteralTest() {
          super("ArrayLiteralTest");
      }
  
      @Test
      public void testEmptyArrayLiteral() throws Exception {
          final JexlContext jc = new MapContext();
          Object o;
          o = JEXL.createExpression("[]").evaluate(jc);
          Assert.assertTrue(o instanceof Object[]);
          Assert.assertEquals(0, ((Object[]) o).length);
          o = JEXL.createExpression("[...]").evaluate(jc);
          Assert.assertTrue(o instanceof List<?>);
          Assert.assertEquals(0, ((List<?>) o).size());
      }
  
      @Test
      public void testLiteralWithStrings() throws Exception {
          final JexlExpression e = JEXL.createExpression("[ 'foo' , 'bar' ]");
          final JexlContext jc = new MapContext();
  
          final Object o = e.evaluate(jc);
          final Object[] check = {"foo", "bar"};
          Assert.assertArrayEquals(check, (Object[]) o);
      }
  
      @Test
      public void testLiteralWithElipsis() throws Exception {
          final JexlExpression e = JEXL.createExpression("[ 'foo' , 'bar', ... ]");
          final JexlContext jc = new MapContext();
  
          final Object o = e.evaluate(jc);
          final Object[] check = {"foo", "bar"};
          Assert.assertEquals(Arrays.asList(check), o);
          Assert.assertEquals(2, ((List<?>) o).size());
      }
  
      @Test
      public void testLiteralWithOneEntry() throws Exception {
          final JexlExpression e = JEXL.createExpression("[ 'foo' ]");
          final JexlContext jc = new MapContext();
  
          final Object o = e.evaluate(jc);
          final Object[] check = {"foo"};
          Assert.assertArrayEquals(check, (Object[]) o);
      }
  
      @Test
      public void testLiteralWithNumbers() throws Exception {
          final JexlExpression e = JEXL.createExpression("[ 5.0 , 10 ]");
          final JexlContext jc = new MapContext();
  
          final Object o = e.evaluate(jc);
          final Object[] check = {new Double(5), new Integer(10)};
          Assert.assertArrayEquals(check, (Object[]) o);
          Assert.assertTrue(o.getClass().isArray() && o.getClass().getComponentType().equals(Number.class));
      }
  
      @Test
      public void testLiteralWithNulls() throws Exception {
          final String[] exprs = {
              "[ null , 10 ]",
              "[ 10 , null ]",
              "[ 10 , null , 10]",
              "[ '10' , null ]",
              "[ null, '10' , null ]"
          };
          final Object[][] checks = {
              {null, new Integer(10)},
             {new Integer(10), null},
             {new Integer(10), null, new Integer(10)},
             {"10", null},
             {null, "10", null}
         };
         final JexlContext jc = new MapContext();
         for (int t = 0; t < exprs.length; ++t) {
             final JexlExpression e = JEXL.createExpression(exprs[t]);
             final Object o = e.evaluate(jc);
             Assert.assertArrayEquals(exprs[t], checks[t], (Object[]) o);
         }
 
     }
 
     @Test
     public void testLiteralWithIntegers() throws Exception {
         final JexlExpression e = JEXL.createExpression("[ 5 , 10 ]");
         final JexlContext jc = new MapContext();
 
         final Object o = e.evaluate(jc);
         final int[] check = {5, 10};
         Assert.assertArrayEquals(check, (int[]) o);
     }
 
     @Test
     public void testSizeOfSimpleArrayLiteral() throws Exception {
         final JexlExpression e = JEXL.createExpression("size([ 'foo' , 'bar' ])");
         final JexlContext jc = new MapContext();
 
         final Object o = e.evaluate(jc);
         Assert.assertEquals(new Integer(2), o);
     }
 
     @Test
     public void notestCallingMethodsOnNewMapLiteral() throws Exception {
         final JexlExpression e = JEXL.createExpression("size({ 'foo' : 'bar' }.values())");
         final JexlContext jc = new MapContext();
 
         final Object o = e.evaluate(jc);
         Assert.assertEquals(new Integer(1), o);
     }
 
     @Test
     public void testNotEmptySimpleArrayLiteral() throws Exception {
         final JexlExpression e = JEXL.createExpression("empty([ 'foo' , 'bar' ])");
         final JexlContext jc = new MapContext();
 
         final Object o = e.evaluate(jc);
         Assert.assertFalse((Boolean) o);
     }
 
     @Test
     public void testChangeThroughVariables() throws Exception {
         final JexlContext jc = new MapContext();
         final JexlExpression e147 = JEXL.createExpression("quux = [one, two]");
 
         jc.set("one", 1);
         jc.set("two", 2);
         final int[] o1 = (int[]) e147.evaluate(jc);
         Assert.assertEquals(1, o1[0]);
         Assert.assertEquals(2, o1[1]);
 
         jc.set("one", 10);
         jc.set("two", 20);
         final int[] o2 = (int[]) e147.evaluate(jc);
         Assert.assertEquals(10, o2[0]);
         Assert.assertEquals(20, o2[1]);
     }
 }