/*
    * 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 static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.fail;
  
  import java.util.HashMap;
  import java.util.Map;
  
  import org.junit.jupiter.api.Test;
  
  /**
   */
  public class StringUtilTest {
      /**
       * Test a default string substitution, e.g. all placeholders are expanded.
       */
      @Test
      public void testDefaultStringSubstitution() throws Exception {
          final Map<String, String> 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 a erroneous template.
       */
      @Test
      public void testErroneousTemplate() throws Exception {
          final Map<String, String> vars = new HashMap<>();
          vars.put("foo", "FOO");
  
          assertEquals("This is a FOO & ${}} test", StringUtils.stringSubstitution("This is a ${foo} & ${}} test", vars, true).toString());
      }
  
      /**
       * Test an incomplete string substitution where not all placeholders are expanded.
       */
      @Test
      public void testIncompleteSubstitution() throws Exception {
  
          final Map<String, String> 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 (final RuntimeException e) {
              // nothing to do
          }
      }
  
      /**
       * Test no string substitution
       */
      @Test
      public void testNoStringSubstitution() throws Exception {
          final Map<String, String> 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());
      }
  }