/*
    * 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.exec.util;
  
  import java.util.HashMap;
  import java.util.Map;
  
  import junit.framework.TestCase;
  
  public class StringUtilTest extends TestCase
  {
      /**
       * Test no string substitution
       */
      public void testNoStringSubstitution() throws Exception
      {
          Map vars = new HashMap();
          vars.put("foo", "FOO");
          vars.put("bar", "BAR");
  
          assertEquals("This is a FOO & BAR test", StringUtils.stringSubstitution("This is a FOO & BAR test", vars, true).toString());
      }
  
      /**
       * Test a default string substitution, e.g. all placeholders
       * are expanded.
       */
      public void testDefaultStringSubstitution() throws Exception 
      {
          Map vars = new HashMap();
          vars.put("foo", "FOO");
          vars.put("bar", "BAR");
  
          assertEquals("This is a FOO & BAR test", StringUtils.stringSubstitution("This is a ${foo} & ${bar} test", vars, true).toString());
          assertEquals("This is a FOO & BAR test", StringUtils.stringSubstitution("This is a ${foo} & ${bar} test", vars, false).toString());
      }
  
      /**
       * Test an incomplete string substitution where not all placeholders
       * are expanded.
       */
      public void testIncompleteSubstitution() throws Exception {
  
          Map vars = new HashMap();
          vars.put("foo", "FOO");
  
          assertEquals("This is a FOO & ${bar} test",  StringUtils.stringSubstitution("This is a ${foo} & ${bar} test", vars, true).toString());
  
          try
          {
              StringUtils.stringSubstitution("This is a ${foo} & ${bar} test", vars, false).toString();
              fail();
          }
          catch(RuntimeException e)
          {
              // nothing to do
          }
      }
  
      /**
       * Test a erroneous template.
       */
      public void testErroneousTemplate() throws Exception
      {
          Map vars = new HashMap();
          vars.put("foo", "FOO");
  
          assertEquals("This is a FOO & ${}} test",  StringUtils.stringSubstitution("This is a ${foo} & ${}} test", vars, true).toString());
      }
  }