/*
    * 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.beanutils.expression;
  
  import junit.framework.TestCase;
  import junit.framework.TestSuite;
  
  /**
   * Junit Test for BasicResolver.
   *
   * @version $Id$
   */
  public class DefaultResolverTestCase extends TestCase {
  
      private final DefaultResolver resolver = new DefaultResolver();
  
      // Simple Properties Test Data
      private final String[] validProperties = new String[] {null, "", "a", "bc", "def", "g.h", "ij.k", "lm.no", "pqr.stu"};
      private final String[] validNames      = new String[] {null, "", "a", "bc", "def", "g",   "ij",   "lm",    "pqr"};
  
      // Indexed Properties Test Data
      private final String[] validIndexProperties = new String[] {"a[1]", "b[12]", "cd[3]", "ef[45]", "ghi[6]", "jkl[789]", };
      private final String[] validIndexNames      = new String[] {"a",    "b",     "cd",    "ef",     "ghi",    "jkl"};
      private final int[]    validIndexValues     = new int[]    {1,      12,      3,       45,       6,        789};
  
      // Mapped Properties Test Data
      private final String[] validMapProperties = new String[] {"a(b)", "c(de)", "fg(h)", "ij(kl)", "mno(pqr.s)", "tuv(wx).yz[1]"};
      private final String[] validMapNames      = new String[] {"a",    "c",     "fg",    "ij",     "mno",        "tuv"};
      private final String[] validMapKeys       = new String[] {"b",    "de",    "h",     "kl",     "pqr.s",      "wx"};
  
      private final String[] nextExpressions   = new String[] {"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    = new String[] {"a", "bc", "d",   "fg",   "ij",    "m(12)", "no(3.4)", "pq(r)",   "t[12]", "uv[34]"};
      private final String[] removeProperties  = new String[] {null, null, "e",  "h",    "kl",    null,    null,      "s",       null,    "wx"};
  
      /**
       * Construct a DefaultResolver Test Case.
       * @param name The name of the test
       */
      public DefaultResolverTestCase(final String name) {
          super(name);
      }
  
      // ------------------------------------------------------------------------
  
      /**
       * Create Test Suite
       * @return test suite
       */
      public static TestSuite suite() {
          return new TestSuite(DefaultResolverTestCase.class);
      }
  
      /**
       * Set Up
       */
      @Override
      protected void setUp() {
      }
  
      /**
       * Tear Down
       */
      @Override
      protected void tearDown() {
      }
  
      // ------------------------------------------------------------------------
  
      /**
       * Test getIndex() method.
       */
      public void testGetIndex() {
          String label = null;
  
          // Simple Properties (expect -1)
          for (int i = 0; i < validProperties.length; i++) {
              try {
                  label = "Simple " + label(validProperties[i], i);
                  assertEquals(label, -1, resolver.getIndex(validProperties[i]));
              } catch (final Throwable t) {
                  fail(label + " threw " + t);
              }
          }
  
          // Indexed Properties (expect correct index value)
         for (int i = 0; i < validIndexProperties.length; i++) {
             try {
                 label = "Indexed " + label(validIndexProperties[i], i);
                 assertEquals(label, validIndexValues[i], resolver.getIndex(validIndexProperties[i]));
             } catch (final Throwable t) {
                 fail(label + " threw " + t);
             }
         }
 
         // Mapped Properties (expect -1)
         for (int i = 0; i < validMapProperties.length; i++) {
             try {
                 label = "Mapped " + label(validMapProperties[i], i);
                 assertEquals(label, -1, resolver.getIndex(validMapProperties[i]));
             } catch (final Throwable t) {
                 fail(label + " threw " + t);
             }
         }
 
         // Missing Index Value
         label = "Missing Index";
         try {
             final int index  = resolver.getIndex("foo[]");
             fail(label + " expected IllegalArgumentException: " + index);
         } catch (final IllegalArgumentException e) {
             assertEquals(label + " Error Message", "No Index Value", e.getMessage());
         } catch (final Throwable t) {
             fail(label + " expected IllegalArgumentException: " + t);
         }
 
         // Malformed
         label = "Malformed";
         try {
             final int index  = resolver.getIndex("foo[12");
             fail(label + " expected IllegalArgumentException: " + index);
         } catch (final IllegalArgumentException e) {
             assertEquals(label + " Error Message", "Missing End Delimiter", e.getMessage());
         } catch (final Throwable t) {
             fail(label + " expected IllegalArgumentException: " + t);
         }
 
         // Non-numeric
         label = "Malformed";
         try {
             final int index  = resolver.getIndex("foo[BAR]");
             fail(label + " expected IllegalArgumentException: " + index);
         } catch (final IllegalArgumentException e) {
             assertEquals(label + " Error Message", "Invalid index value 'BAR'", e.getMessage());
         } catch (final Throwable t) {
             fail(label + " expected IllegalArgumentException: " + t);
         }
     }
 
     /**
      * Test getMapKey() method.
      */
     public void testGetMapKey() {
         String label = null;
 
         // Simple Properties (expect null)
         for (int i = 0; i < validProperties.length; i++) {
             try {
                 label = "Simple " + label(validProperties[i], i);
                 assertEquals(label, null, resolver.getKey(validProperties[i]));
             } catch (final Throwable t) {
                 fail(label + " threw " + t);
             }
         }
 
         // Indexed Properties (expect null)
         for (int i = 0; i < validIndexProperties.length; i++) {
             try {
                 label = "Indexed " + label(validIndexProperties[i], i);
                 assertEquals(label, null, resolver.getKey(validIndexProperties[i]));
             } catch (final Throwable t) {
                 fail(label + " threw " + t);
             }
         }
 
         // Mapped Properties (expect correct map key)
         for (int i = 0; i < validMapProperties.length; i++) {
             try {
                 label = "Mapped " + label(validMapProperties[i], i);
                 assertEquals(label, validMapKeys[i], resolver.getKey(validMapProperties[i]));
             } catch (final Throwable t) {
                 fail(label + " threw " + t);
             }
         }
 
         // Malformed
         label = "Malformed";
         try {
             final String key  = resolver.getKey("foo(bar");
             fail(label + " expected IllegalArgumentException: " + key);
         } catch (final IllegalArgumentException e) {
             assertEquals(label + " Error Message", "Missing End Delimiter", e.getMessage());
         } catch (final Throwable t) {
             fail(label + " expected IllegalArgumentException: " + t);
         }
  }
 
     /**
      * Test isIndexed() method.
      */
     public void testIsIndexed() {
         String label = null;
 
         // Simple Properties (expect -1)
         for (int i = 0; i < validProperties.length; i++) {
             try {
                 label = "Simple " + label(validProperties[i], i);
                 assertFalse(label, resolver.isIndexed(validProperties[i]));
             } catch (final Throwable t) {
                 fail(label + " threw " + t);
             }
         }
 
         // Indexed Properties (expect correct index value)
         for (int i = 0; i < validIndexProperties.length; i++) {
             try {
                 label = "Indexed " + label(validIndexProperties[i], i);
                 assertTrue(label, resolver.isIndexed(validIndexProperties[i]));
             } catch (final Throwable t) {
                 fail(label + " threw " + t);
             }
         }
 
         // Mapped Properties (expect -1)
         for (int i = 0; i < validMapProperties.length; i++) {
             try {
                 label = "Mapped " + label(validMapProperties[i], i);
                 assertFalse(label, resolver.isIndexed(validMapProperties[i]));
             } catch (final Throwable t) {
                 fail(label + " threw " + t);
             }
         }
     }
 
     /**
      * Test isMapped() method.
      */
     public void testIsMapped() {
         String label = null;
 
         // Simple Properties (expect null)
         for (int i = 0; i < validProperties.length; i++) {
             try {
                 label = "Simple " + label(validProperties[i], i);
                 assertFalse(label, resolver.isMapped(validProperties[i]));
             } catch (final Throwable t) {
                 fail(label + " threw " + t);
             }
         }
 
         // Indexed Properties (expect null)
         for (int i = 0; i < validIndexProperties.length; i++) {
             try {
                 label = "Indexed " + label(validIndexProperties[i], i);
                 assertFalse(label, resolver.isMapped(validIndexProperties[i]));
             } catch (final Throwable t) {
                 fail(label + " threw " + t);
             }
         }
 
         // Mapped Properties (expect correct map key)
         for (int i = 0; i < validMapProperties.length; i++) {
             try {
                 label = "Mapped " + label(validMapProperties[i], i);
                 assertTrue(label, resolver.isMapped(validMapProperties[i]));
             } catch (final Throwable t) {
                 fail(label + " threw " + t);
             }
         }
     }
 
     /**
      * Test getName() method.
      */
     public void testGetName() {
         String label = null;
 
         // Simple Properties
         for (int i = 0; i < validProperties.length; i++) {
             try {
                 label = "Simple " + label(validProperties[i], i);
                 assertEquals(label, validNames[i], resolver.getProperty(validProperties[i]));
             } catch (final Throwable t) {
                 fail(label + " threw " + t);
             }
         }
 
         // Indexed Properties
         for (int i = 0; i < validIndexProperties.length; i++) {
             try {
                 label = "Indexed " + label(validIndexProperties[i], i);
                 assertEquals(label, validIndexNames[i], resolver.getProperty(validIndexProperties[i]));
             } catch (final Throwable t) {
                 fail(label + " threw " + t);
             }
         }
 
         // Mapped Properties
         for (int i = 0; i < validMapProperties.length; i++) {
             try {
                 label = "Mapped " + label(validMapProperties[i], i);
                 assertEquals(label, validMapNames[i], resolver.getProperty(validMapProperties[i]));
             } catch (final Throwable t) {
                 fail(label + " threw " + t);
             }
         }
     }
 
     /**
      * Test next() method.
      */
     public void testNext() {
         String label = null;
         for (int i = 0; i < nextExpressions.length; i++) {
             try {
                 label = label(nextExpressions[i], i);
                 assertEquals(label, nextProperties[i], resolver.next(nextExpressions[i]));
             } catch (final Throwable t) {
                 fail(label + " threw " + t);
             }
         }
     }
 
     /**
      * Test remove() method.
      */
     public void testRemove() {
         String label = null;
         for (int i = 0; i < nextExpressions.length; i++) {
             try {
                 label = label(nextExpressions[i], i);
                 assertEquals(label, removeProperties[i], resolver.remove(nextExpressions[i]));
             } catch (final Throwable t) {
                 fail(label + " threw " + t);
             }
         }
     }
 
     private String label(final String expression, final int i) {
         return "Expression[" + i + "]=\"" + expression + "\"";
     }
 }