try {
          IntMath.ceilingPowerOfTwo(x);
          fail("Expected ArithmeticException");
        } catch (ArithmeticException expected) {
        }
      }
    }
  }

  public void testFloorPowerOfTwo() {
    for (int x : POSITIVE_INTEGER_CANDIDATES) {
      BigInteger expectedResult = BigIntegerMath.floorPowerOfTwo(BigInteger.valueOf(x));
      assertEquals(expectedResult.intValue(), IntMath.floorPowerOfTwo(x));
    }

      assertTrue(BigIntegerMath.isPowerOfTwo(result));
      assertTrue(result.compareTo(x) >= 0);
      assertTrue(result.compareTo(x.add(x)) < 0);
    }
  }

  public void testFloorPowerOfTwo() {
    for (BigInteger x : POSITIVE_BIGINTEGER_CANDIDATES) {
      BigInteger result = BigIntegerMath.floorPowerOfTwo(x);
      assertTrue(BigIntegerMath.isPowerOfTwo(result));
      assertTrue(result.compareTo(x) <= 0);

        try {
          LongMath.ceilingPowerOfTwo(x);
          fail("Expected ArithmeticException");
        } catch (ArithmeticException expected) {
        }
      }
    }
  }

  public void testFloorPowerOfTwo() {
    for (long x : POSITIVE_LONG_CANDIDATES) {
      BigInteger expectedResult = BigIntegerMath.floorPowerOfTwo(BigInteger.valueOf(x));
      assertEquals(expectedResult.longValue(), LongMath.floorPowerOfTwo(x));
    }

        try {
          LongMath.ceilingPowerOfTwo(x);
          fail("Expected ArithmeticException");
        } catch (ArithmeticException expected) {
        }
      }
    }
  }

  public void testFloorPowerOfTwo() {
    for (long x : POSITIVE_LONG_CANDIDATES) {
      BigInteger expectedResult = BigIntegerMath.floorPowerOfTwo(BigInteger.valueOf(x));
      assertEquals(expectedResult.longValue(), LongMath.floorPowerOfTwo(x));
    }