/*
    * 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.beanutils2.expression;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertFalse;
  import static org.junit.jupiter.api.Assertions.assertThrows;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  
  /**
   * Junit Test for BasicResolver.
   */
  public class DefaultResolverTest {
  
      private final DefaultResolver resolver = new DefaultResolver();
      // Simple Properties Test Data
      private final String[] validProperties = { null, "", "a", "bc", "def", "g.h", "ij.k", "lm.no", "pqr.stu" };
  
      private final String[] validNames = { null, "", "a", "bc", "def", "g", "ij", "lm", "pqr" };
      // Indexed Properties Test Data
      private final String[] validIndexProperties = { "a[1]", "b[12]", "cd[3]", "ef[45]", "ghi[6]", "jkl[789]", };
      private final String[] validIndexNames = { "a", "b", "cd", "ef", "ghi", "jkl" };
  
      private final int[] validIndexValues = { 1, 12, 3, 45, 6, 789 };
      // Mapped Properties Test Data
      private final String[] validMapProperties = { "a(b)", "c(de)", "fg(h)", "ij(kl)", "mno(pqr.s)", "tuv(wx).yz[1]" };
      private final String[] validMapNames = { "a", "c", "fg", "ij", "mno", "tuv" };
  
      private final String[] validMapKeys = { "b", "de", "h", "kl", "pqr.s", "wx" };
      private final String[] nextExpressions = { "a", "bc", "d.e", "fg.h", "ij.kl", "m(12)", "no(3.4)", "pq(r).s", "t[12]", "uv[34].wx" };
      private final String[] nextProperties = { "a", "bc", "d", "fg", "ij", "m(12)", "no(3.4)", "pq(r)", "t[12]", "uv[34]" };
  
      private final String[] removeProperties = { null, null, "e", "h", "kl", null, null, "s", null, "wx" };
  
      private String label(final String expression, final int i) {
          return "Expression[" + i + "]=\"" + expression + "\"";
      }
  
      /**
       * Sets Up
       */
      @BeforeEach
      protected void setUp() {
      }
  
      /**
       * Tear Down
       */
      @AfterEach
      protected void tearDown() {
      }
  
      /**
       * Test getIndex() method.
       */
      @Test
      public void testGetIndex() throws Exception {
          String label = null;
  
          // Simple Properties (expect -1)
          for (int i = 0; i < validProperties.length; i++) {
              label = "Simple " + label(validProperties[i], i);
              assertEquals(-1, resolver.getIndex(validProperties[i]), label);
          }
  
          // Indexed Properties (expect correct index value)
          for (int i = 0; i < validIndexProperties.length; i++) {
              label = "Indexed " + label(validIndexProperties[i], i);
              assertEquals(validIndexValues[i], resolver.getIndex(validIndexProperties[i]), label);
          }
  
          // Mapped Properties (expect -1)
          for (int i = 0; i < validMapProperties.length; i++) {
              label = "Mapped " + label(validMapProperties[i], i);
              assertEquals(-1, resolver.getIndex(validMapProperties[i]), label);
          }
  
          // Missing Index Value
          label = "Missing Index";
          assertThrows(IllegalArgumentException.class, () -> resolver.getIndex("foo[]"));
  
         // Malformed
         label = "Malformed";
         assertThrows(IllegalArgumentException.class, () -> resolver.getIndex("foo[12"));
 
         // Non-numeric
         label = "Malformed";
         final IllegalArgumentException e = assertThrows(IllegalArgumentException.class, () -> resolver.getIndex("foo[BAR]"));
         assertEquals("Invalid index value 'BAR'", e.getMessage(), label + " Error Message");
     }
 
     /**
      * Test getMapKey() method.
      */
     @Test
     public void testGetMapKey() {
         String label = null;
 
         // Simple Properties (expect null)
         for (int i = 0; i < validProperties.length; i++) {
             label = "Simple " + label(validProperties[i], i);
             assertEquals(null, resolver.getKey(validProperties[i]), label);
         }
 
         // Indexed Properties (expect null)
         for (int i = 0; i < validIndexProperties.length; i++) {
             label = "Indexed " + label(validIndexProperties[i], i);
             assertEquals(null, resolver.getKey(validIndexProperties[i]), label);
         }
 
         // Mapped Properties (expect correct map key)
         for (int i = 0; i < validMapProperties.length; i++) {
             label = "Mapped " + label(validMapProperties[i], i);
             assertEquals(validMapKeys[i], resolver.getKey(validMapProperties[i]), label);
         }
 
         // Malformed
         label = "Malformed";
         final IllegalArgumentException e = assertThrows(IllegalArgumentException.class, () -> resolver.getKey("foo(bar"));
         assertEquals("Missing End Delimiter", e.getMessage(), label + " Error Message");
     }
 
     /**
      * Test getName() method.
      */
     @Test
     public void testGetName() {
         String label = null;
 
         // Simple Properties
         for (int i = 0; i < validProperties.length; i++) {
             label = "Simple " + label(validProperties[i], i);
             assertEquals(validNames[i], resolver.getProperty(validProperties[i]), label);
         }
 
         // Indexed Properties
         for (int i = 0; i < validIndexProperties.length; i++) {
             label = "Indexed " + label(validIndexProperties[i], i);
             assertEquals(validIndexNames[i], resolver.getProperty(validIndexProperties[i]), label);
         }
 
         // Mapped Properties
         for (int i = 0; i < validMapProperties.length; i++) {
             label = "Mapped " + label(validMapProperties[i], i);
             assertEquals(validMapNames[i], resolver.getProperty(validMapProperties[i]), label);
         }
     }
 
     /**
      * Test isIndexed() method.
      */
     @Test
     public void testIsIndexed() {
         String label = null;
 
         // Simple Properties (expect -1)
         for (int i = 0; i < validProperties.length; i++) {
             label = "Simple " + label(validProperties[i], i);
             assertFalse(resolver.isIndexed(validProperties[i]), label);
         }
 
         // Indexed Properties (expect correct index value)
         for (int i = 0; i < validIndexProperties.length; i++) {
             label = "Indexed " + label(validIndexProperties[i], i);
             assertTrue(resolver.isIndexed(validIndexProperties[i]), label);
         }
 
         // Mapped Properties (expect -1)
         for (int i = 0; i < validMapProperties.length; i++) {
             label = "Mapped " + label(validMapProperties[i], i);
             assertFalse(resolver.isIndexed(validMapProperties[i]), label);
         }
     }
 
     /**
      * Test isMapped() method.
      */
     @Test
     public void testIsMapped() {
         String label = null;
 
         // Simple Properties (expect null)
         for (int i = 0; i < validProperties.length; i++) {
             label = "Simple " + label(validProperties[i], i);
             assertFalse(resolver.isMapped(validProperties[i]), label);
         }
 
         // Indexed Properties (expect null)
         for (int i = 0; i < validIndexProperties.length; i++) {
             label = "Indexed " + label(validIndexProperties[i], i);
             assertFalse(resolver.isMapped(validIndexProperties[i]), label);
         }
 
         // Mapped Properties (expect correct map key)
         for (int i = 0; i < validMapProperties.length; i++) {
             label = "Mapped " + label(validMapProperties[i], i);
             assertTrue(resolver.isMapped(validMapProperties[i]), label);
         }
     }
 
     /**
      * Test next() method.
      */
     @Test
     public void testNext() {
         String label = null;
         for (int i = 0; i < nextExpressions.length; i++) {
             label = label(nextExpressions[i], i);
             assertEquals(nextProperties[i], resolver.next(nextExpressions[i]), label);
         }
     }
 
     /**
      * Test remove() method.
      */
     @Test
     public void testRemove() {
         String label = null;
         for (int i = 0; i < nextExpressions.length; i++) {
             label = label(nextExpressions[i], i);
             assertEquals(removeProperties[i], resolver.remove(nextExpressions[i]), label);
         }
     }
 }