/*
    * 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
    *
    *      https://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 static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNull;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  import java.util.Collections;
  
  import org.junit.jupiter.api.Test;
  
  /**
   * Tests for blocks
   */
  @SuppressWarnings({"UnnecessaryBoxing", "AssertEqualsBetweenInconvertibleTypes"})
  class BlockTest extends JexlTestCase {
  
      /**
       * Create the test
       */
      public BlockTest() {
          super("BlockTest");
      }
  
      @Test
      void testBlockExecutesAll() {
          final JexlScript e = JEXL.createScript("if (true) { x = 'Hello'; y = 'World';}");
          final JexlContext jc = new MapContext();
          final Object o = e.execute(jc);
          assertEquals("Hello", jc.get("x"), "First result is wrong");
          assertEquals("World", jc.get("y"), "Second result is wrong");
          assertEquals("World", o, "Block result is wrong");
      }
  
      @Test
      void testBlockLastExecuted01() {
          final JexlScript e = JEXL.createScript("if (true) { x = 1; } else { x = 2; }");
          final JexlContext jc = new MapContext();
          final Object o = e.execute(jc);
          assertEquals(Integer.valueOf(1), o, "Block result is wrong");
      }
  
      @Test
      void testBlockLastExecuted02() {
          final JexlScript e = JEXL.createScript("if (false) { x = 1; } else { x = 2; }");
          final JexlContext jc = new MapContext();
          final Object o = e.execute(jc);
          assertEquals(Integer.valueOf(2), o, "Block result is wrong");
      }
  
      @Test
      void testBlockSimple() {
          final JexlScript e = JEXL.createScript("if (true) { 'hello'; }");
          final JexlContext jc = new MapContext();
          final Object o = e.execute(jc);
          assertEquals("hello", o, "Result is wrong");
      }
  
      @Test
      void testEmptyBlock() {
          final JexlScript e = JEXL.createScript("if (true) { }");
          final JexlContext jc = new MapContext();
          final Object o = e.execute(jc);
          assertNull(o, "Result is wrong");
      }
  
      @Test
      void testNestedBlock() {
          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);
          assertEquals("world", o, "Block result is wrong");
      }
  
      @Test
      void testSetVSBlock() {
          final AnnotationTest.AnnotationContext jc = new AnnotationTest.AnnotationContext();
          JexlScript e;
          Object r;
          // synchronized block
          e = JEXL.createScript("let n = 41 @synchronized { n += 1; }");
          r = e.execute(jc);
          assertEquals(42, r);
          assertEquals(1, jc.getCount());
         assertTrue(jc.getNames().contains("synchronized"));
         // synchronized set
         e = JEXL.createScript("let n = 41 @synchronized { n += 1 }");
         r = e.execute(jc);
         assertEquals(Collections.singleton(42), r);
         assertEquals(2, jc.getCount());
         assertTrue(jc.getNames().contains("synchronized"));
 
         e = JEXL.createScript("let n = 41 { n += 1 }");
         r = e.execute(jc);
         assertEquals(Collections.singleton(42), r);
 
         e = JEXL.createScript("let n = 41 { n += 1; }");
         r = e.execute(jc);
         assertEquals(42, r);
 
         e = JEXL.createScript("{'A' : 1, 'B' : 42}['B']");
         r = e.execute(jc);
         assertEquals(42, r);
 
         e = JEXL.createScript("{ n = 42; }");
         r = e.execute(jc);
         assertEquals(42, r);
         e = JEXL.createScript("@synchronized(y) { n = 42; }", "y");
         r = e.execute(jc);
         assertEquals(42, r);
 
         e = JEXL.createScript("{ n = 42 }");
         r = e.execute(jc);
         assertEquals(Collections.singleton(42), r);
         e = JEXL.createScript("@synchronized(z) { n = 42 }", "z");
         r = e.execute(jc);
         assertEquals(Collections.singleton(42), r);
 
         e = JEXL.createScript("{ n = 41; m = 42 }");
         r = e.execute(jc);
         assertEquals(42, r);
 
         e = JEXL.createScript("{ 20 + 22; }");
         r = e.execute(jc);
         assertEquals(42, r);
         e = JEXL.createScript("@synchronized { 20 + 22; }");
         r = e.execute(jc);
         assertEquals(42, r);
 
         e = JEXL.createScript("{ 6 * 7 }");
         r = e.execute(jc);
         assertEquals(Collections.singleton(42), r);
     }
 }