/*
    *    Copyright 2016-2025 the original author or authors.
    *
    *    Licensed 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.mybatis.dynamic.sql.util;
  
  import static org.assertj.core.api.Assertions.assertThat;
  
  import org.junit.jupiter.api.Test;
  
  class StringUtilitiesTest {
  
      @Test
      void testInitialUnderscore() {
          String input = "_USER";
          assertThat(StringUtilities.toCamelCase(input)).isEqualTo("user");
      }
  
      @Test
      void testSpace() {
          String input = "USER NAME";
          assertThat(StringUtilities.toCamelCase(input)).isEqualTo("userName");
      }
  
      @Test
      void testNumeric() {
          String input = "USER%NAME%3";
          assertThat(StringUtilities.toCamelCase(input)).isEqualTo("userName3");
      }
  
      @Test
      void testUpperCaseInteger() {
          Integer i = StringUtilities.upperCaseIfPossible(3);
          assertThat(i).isEqualTo(3);
      }
  
      @Test
      void testUpperCaseString() {
          String i = StringUtilities.upperCaseIfPossible("fred");
          assertThat(i).isEqualTo("FRED");
      }
  }