content: /*
   * Copyright 1999-2020 Alibaba Group Holding Ltd.
   *
   * 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
   *
   *      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 com.alibaba.nacos.common.utils;
  
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertFalse;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  /**
   * Number utils.
   *
   * @author zzq
   */
  class NumberUtilsTest {
      
      @Test
      void testToInt() {
          assertEquals(0, NumberUtils.toInt(null));
          assertEquals(0, NumberUtils.toInt(StringUtils.EMPTY));
          assertEquals(1, NumberUtils.toInt("1"));
      }
      
      @Test
      void testTestToInt() {
          assertEquals(1, NumberUtils.toInt(null, 1));
          assertEquals(1, NumberUtils.toInt("", 1));
          assertEquals(1, NumberUtils.toInt("1", 0));
      }
      
      @Test
      void testToLong() {
          assertEquals(1L, NumberUtils.toLong(null, 1L));
          assertEquals(1L, NumberUtils.toLong("", 1L));
          assertEquals(1L, NumberUtils.toLong("1", 0L));
      }
      
      @Test
      void testToDouble() {
          assertEquals(1.1d, NumberUtils.toDouble(null, 1.1d), 0);
          assertEquals(1.1d, NumberUtils.toDouble("", 1.1d), 0);
          assertEquals(1.5d, NumberUtils.toDouble("1.5", 0.0d), 0);
      }
      
      @Test
      void testIsDigits() {
          assertFalse(NumberUtils.isDigits(null));
          assertFalse(NumberUtils.isDigits(""));
          assertTrue(NumberUtils.isDigits("12345"));
          assertFalse(NumberUtils.isDigits("1234.5"));
          assertFalse(NumberUtils.isDigits("1ab"));
          assertFalse(NumberUtils.isDigits("abc"));
      }
      
      @Test
      void testToFloatString() {
          assertEquals(NumberUtils.toFloat("-1.2345"), -1.2345f, 0);
          assertEquals(1.2345f, NumberUtils.toFloat("1.2345"), 0);
          assertEquals(0.0f, NumberUtils.toFloat("abc"), 0);
          
          assertEquals(NumberUtils.toFloat("-001.2345"), -1.2345f, 0);
          assertEquals(1.2345f, NumberUtils.toFloat("+001.2345"), 0);
          assertEquals(1.2345f, NumberUtils.toFloat("001.2345"), 0);
          assertEquals(0f, NumberUtils.toFloat("000.00"), 0);
          
          assertEquals(Float.MAX_VALUE, NumberUtils.toFloat(Float.MAX_VALUE + ""), 0);
          assertEquals(Float.MIN_VALUE, NumberUtils.toFloat(Float.MIN_VALUE + ""), 0);
          assertEquals(0.0f, NumberUtils.toFloat(""), 0);
          assertEquals(0.0f, NumberUtils.toFloat(null), 0);
      }
      
      @Test
      void testToFloatStringString() {
          assertEquals(1.2345f, NumberUtils.toFloat("1.2345", 5.1f), 0);
          assertEquals(5.0f, NumberUtils.toFloat("a", 5.0f), 0);
          // LANG-1060
          assertEquals(5.0f, NumberUtils.toFloat("-001Z.2345", 5.0f), 0);
          assertEquals(5.0f, NumberUtils.toFloat("+001AB.2345", 5.0f), 0);
          assertEquals(5.0f, NumberUtils.toFloat("001Z.2345", 5.0f), 0);
      }
      
  }
  