/*
    * Copyright (C) 2012 The Guava 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
    *
    * 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.google.common.math;
  
  import com.google.common.annotations.GwtCompatible;
  
  import junit.framework.TestCase;
  
  import java.math.BigInteger;
  
  /**
   * Unit tests for {@link MathPreconditions}.
   *
   * @author Ben Yu
   */
  @GwtCompatible
  public class MathPreconditionsTest extends TestCase {
  
    public void testCheckPositive_zeroInt() {
      try {
        MathPreconditions.checkPositive("int", 0);
        fail();
      } catch (IllegalArgumentException expected) {}
    }
  
    public void testCheckPositive_maxInt() {
      MathPreconditions.checkPositive("int", Integer.MAX_VALUE);
    }
  
    public void testCheckPositive_minInt() {
      try {
        MathPreconditions.checkPositive("int", Integer.MIN_VALUE);
        fail();
      } catch (IllegalArgumentException expected) {}
    }
  
    public void testCheckPositive_positiveInt() {
      MathPreconditions.checkPositive("int", 1);
    }
  
    public void testCheckPositive_negativeInt() {
      try {
        MathPreconditions.checkPositive("int", -1);
        fail();
      } catch (IllegalArgumentException expected) {}
    }
  
    public void testCheckPositive_zeroLong() {
      try {
        MathPreconditions.checkPositive("long", 0L);
        fail();
      } catch (IllegalArgumentException expected) {}
    }
  
    public void testCheckPositive_maxLong() {
      MathPreconditions.checkPositive("long", Long.MAX_VALUE);
    }
  
    public void testCheckPositive_minLong() {
      try {
        MathPreconditions.checkPositive("long", Long.MIN_VALUE);
        fail();
      } catch (IllegalArgumentException expected) {}
    }
  
    public void testCheckPositive_positiveLong() {
      MathPreconditions.checkPositive("long", 1);
    }
  
    public void testCheckPositive_negativeLong() {
      try {
        MathPreconditions.checkPositive("long", -1L);
        fail();
      } catch (IllegalArgumentException expected) {}
    }
  
    public void testCheckPositive_zeroBigInteger() {
      try {
        MathPreconditions.checkPositive("BigInteger", BigInteger.ZERO);
        fail();
      } catch (IllegalArgumentException expected) {}
    }
  
    public void testCheckPositive_postiveBigInteger() {
      MathPreconditions.checkPositive("BigInteger", BigInteger.ONE);
   }
 
   public void testCheckPositive_negativeBigInteger() {
     try {
       MathPreconditions.checkPositive("BigInteger", BigInteger.ZERO.negate());
       fail();
     } catch (IllegalArgumentException expected) {}
   }
 
   public void testCheckNonNegative_zeroInt() {
     MathPreconditions.checkNonNegative("int", 0);
   }
 
   public void testCheckNonNegative_maxInt() {
     MathPreconditions.checkNonNegative("int", Integer.MAX_VALUE);
   }
 
   public void testCheckNonNegative_minInt() {
     try {
       MathPreconditions.checkNonNegative("int", Integer.MIN_VALUE);
       fail();
     } catch (IllegalArgumentException expected) {}
   }
 
   public void testCheckNonNegative_positiveInt() {
     MathPreconditions.checkNonNegative("int", 1);
   }
 
   public void testCheckNonNegative_negativeInt() {
     try {
       MathPreconditions.checkNonNegative("int", -1);
       fail();
     } catch (IllegalArgumentException expected) {}
   }
 
   public void testCheckNonNegative_zeroLong() {
     MathPreconditions.checkNonNegative("long", 0L);
   }
 
   public void testCheckNonNegative_maxLong() {
     MathPreconditions.checkNonNegative("long", Long.MAX_VALUE);
   }
 
   public void testCheckNonNegative_minLong() {
     try {
       MathPreconditions.checkNonNegative("long", Long.MIN_VALUE);
       fail();
     } catch (IllegalArgumentException expected) {}
   }
 
   public void testCheckNonNegative_positiveLong() {
     MathPreconditions.checkNonNegative("long", 1L);
   }
 
   public void testCheckNonNegative_negativeLong() {
     try {
       MathPreconditions.checkNonNegative("int", -1L);
       fail();
     } catch (IllegalArgumentException expected) {}
   }
 
   public void testCheckNonNegative_zeroBigInteger() {
     MathPreconditions.checkNonNegative("BigInteger", BigInteger.ZERO);
   }
 
   public void testCheckNonNegative_positiveBigInteger() {
     MathPreconditions.checkNonNegative("BigInteger", BigInteger.ONE);
   }
 
   public void testCheckNonNegative_negativeBigInteger() {
     try {
       MathPreconditions.checkNonNegative("int", BigInteger.ONE.negate());
       fail();
     } catch (IllegalArgumentException expected) {}
   }
 
   public void testCheckNonNegative_zeroFloat() {
     MathPreconditions.checkNonNegative("float", 0f);
   }
 
   public void testCheckNonNegative_maxFloat() {
     MathPreconditions.checkNonNegative("float", Float.MAX_VALUE);
   }
 
   public void testCheckNonNegative_minFloat() {
     MathPreconditions.checkNonNegative("float", Float.MIN_VALUE);
   }
 
   public void testCheckNonNegative_positiveFloat() {
     MathPreconditions.checkNonNegative("float", 1f);
   }
 
   public void testCheckNonNegative_negativeFloat() {
     try {
       MathPreconditions.checkNonNegative("float", -1f);
       fail();
     } catch (IllegalArgumentException expected) {}
   }
 
   public void testCheckNonNegative_nanFloat() {
     try {
       MathPreconditions.checkNonNegative("float", Float.NaN);
       fail();
     } catch (IllegalArgumentException expected) {}
   }
 
   public void testCheckNonNegative_zeroDouble() {
     MathPreconditions.checkNonNegative("double", 0d);
   }
 
   public void testCheckNonNegative_maxDouble() {
     MathPreconditions.checkNonNegative("double", Double.MAX_VALUE);
   }
 
   public void testCheckNonNegative_minDouble() {
     MathPreconditions.checkNonNegative("double", Double.MIN_VALUE);
   }
 
   public void testCheckNonNegative_positiveDouble() {
     MathPreconditions.checkNonNegative("double", 1d);
   }
 
   public void testCheckNonNegative_negativeDouble() {
     try {
       MathPreconditions.checkNonNegative("double", -1d);
       fail();
     } catch (IllegalArgumentException expected) {}
   }
 
   public void testCheckNonNegative_nanDouble() {
     try {
       MathPreconditions.checkNonNegative("double", Double.NaN);
       fail();
     } catch (IllegalArgumentException expected) {}
   }
 
   public void testCheckRoundingUnnnecessary_success() {
     MathPreconditions.checkRoundingUnnecessary(true);
   }
 
   public void testCheckRoundingUnnecessary_failure() {
     try {
       MathPreconditions.checkRoundingUnnecessary(false);
       fail();
     } catch (ArithmeticException expected) {}
   }
 
   public void testCheckInRange_success() {
     MathPreconditions.checkInRange(true);
   }
 
   public void testCheckInRange_failure() {
     try {
       MathPreconditions.checkInRange(false);
       fail();
     } catch (ArithmeticException expected) {}
   }
 
   public void testCheckNoOverflow_success() {
     MathPreconditions.checkNoOverflow(true);
   }
 
   public void testCheckNoOverflow_failure() {
     try {
       MathPreconditions.checkNoOverflow(false);
       fail();
     } catch (ArithmeticException expected) {}
   }
 }