/*
    * 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.Before;
  import org.junit.Test;
  
  /**
   * Tests public field set/get.
   */
  @SuppressWarnings({"UnnecessaryBoxing", "AssertEqualsBetweenInconvertibleTypes"})
  public class PublicFieldsTest extends JexlTestCase {
      // some constants
      private static final String LOWER42 = "fourty-two";
      private static final String UPPER42 = "FOURTY-TWO";
      /**
       * An Inner class.
       */
      public static class Inner {
          public double aDouble = 42.0;
          public static double NOT42 = -42.0;
      }
  
      /**
       * A Struct, all fields public
       */
      public static class Struct {
          public Inner inner = new Inner();
          public int anInt = 42;
          public String aString = LOWER42;
      }
  
      // a pub instance
      private Struct pub;
      // the JexlContext to use
      private JexlContext ctxt;
  
      public PublicFieldsTest() {
          super("PublicFieldsTest");
      }
  
      @Before
      @Override
      public void setUp() {
          pub = new Struct();
          ctxt = new MapContext();
          ctxt.set("pub", pub);
      }
  
      @Test
      public void testGetInt() throws Exception {
          final JexlExpression get = JEXL.createExpression("pub.anInt");
          Assert.assertEquals(42, get.evaluate(ctxt));
          JEXL.setProperty(pub, "anInt", -42);
          Assert.assertEquals(-42, get.evaluate(ctxt));
      }
  
      @Test
      public void testSetInt() throws Exception {
          final JexlExpression set = JEXL.createExpression("pub.anInt = value");
          ctxt.set("value", -42);
          Assert.assertEquals(-42, set.evaluate(ctxt));
          Assert.assertEquals(-42, JEXL.getProperty(pub, "anInt"));
          ctxt.set("value", 42);
          Assert.assertEquals(42, set.evaluate(ctxt));
          Assert.assertEquals(42, JEXL.getProperty(pub, "anInt"));
          try {
              ctxt.set("value", UPPER42);
              Assert.assertNull(set.evaluate(ctxt));
              Assert.fail("should have thrown");
          } catch(final JexlException xjexl) {}
      }
  
      @Test
      public void testGetString() throws Exception {
          final JexlExpression get = JEXL.createExpression("pub.aString");
          Assert.assertEquals(LOWER42, get.evaluate(ctxt));
          JEXL.setProperty(pub, "aString", UPPER42);
          Assert.assertEquals(UPPER42, get.evaluate(ctxt));
      }
  
      @Test
      public void testSetString() throws Exception {
          final JexlExpression set = JEXL.createExpression("pub.aString = value");
         ctxt.set("value", UPPER42);
         Assert.assertEquals(UPPER42, set.evaluate(ctxt));
         Assert.assertEquals(UPPER42, JEXL.getProperty(pub, "aString"));
         ctxt.set("value", LOWER42);
         Assert.assertEquals(LOWER42, set.evaluate(ctxt));
         Assert.assertEquals(LOWER42, JEXL.getProperty(pub, "aString"));
     }
 
     @Test
     public void testGetInnerDouble() throws Exception {
         final JexlExpression get = JEXL.createExpression("pub.inner.aDouble");
         Assert.assertEquals(42.0, get.evaluate(ctxt));
         JEXL.setProperty(pub, "inner.aDouble", -42);
         Assert.assertEquals(-42.0, get.evaluate(ctxt));
     }
 
     @Test
     public void testSetInnerDouble() throws Exception {
         final JexlExpression set = JEXL.createExpression("pub.inner.aDouble = value");
         ctxt.set("value", -42.0);
         Assert.assertEquals(-42.0, set.evaluate(ctxt));
         Assert.assertEquals(-42.0, JEXL.getProperty(pub, "inner.aDouble"));
         ctxt.set("value", 42.0);
         Assert.assertEquals(42.0, set.evaluate(ctxt));
         Assert.assertEquals(42.0, JEXL.getProperty(pub, "inner.aDouble"));
         try {
             ctxt.set("value", UPPER42);
             Assert.assertNull(set.evaluate(ctxt));
             Assert.fail("should have thrown");
         } catch(final JexlException xjexl) {}
     }
 
     public enum Gender { MALE, FEMALE }
 
     @Test
     public void testGetEnum() throws Exception {
         ctxt.set("com.jexl.gender", Gender.class);
         final String src = "x = com.jexl.gender.FEMALE";
         final JexlScript script = JEXL.createScript(src);
         final Object result = script.execute(ctxt);
         Assert.assertEquals(Gender.FEMALE, result);
         Assert.assertEquals(Gender.FEMALE, ctxt.get("x"));
     }
 
     @Test
     public void testGetStaticField() throws Exception {
         ctxt.set("com.jexl", Inner.class);
         final String src = "x = com.jexl.NOT42";
         final JexlScript script = JEXL.createScript(src);
         final Object result = script.execute(ctxt);
         Assert.assertEquals(Inner.NOT42, result);
         Assert.assertEquals(Inner.NOT42, ctxt.get("x"));
     }
 }