Java Assert assertOneBitMask(long mask)

Description

assert One Bit Mask

License

Apache License

Declaration

private static void assertOneBitMask(long mask) 

Method Source Code

//package com.java2s;
/*/*from w w  w  . ja va  2 s . com*/
 * Copyright 2000-2015 JetBrains s.r.o.
 *
 * 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.
 */

public class Main {
    private static void assertOneBitMask(long mask) {
        assert (mask & (mask - 1)) == 0 : "Mask must have only one bit set, but got: " + Long.toBinaryString(mask);
    }
}

Related

1. assertNotTrue(boolean value, String message)
2. assertObjectEmpty(Object value)
3. assertObjEquals(Object expected, Object actual)
4. assertOffsetLengthValid(int offset, int length, int arrayLength)
5. assertOid(final String s)
6. assertParameter(Class expectedClass, Object[] params, int index)
7. assertParameterInRange(long param, long lower, long upper)
8. assertParameterWithinBounds(String name, long lower, long upper, long parameter)
9. assertParameterWithinBounds(String name, long lower, long upper, long parameter)