| /* |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.qpid.proton.amqp; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.fail; |
| |
| import java.math.BigInteger; |
| |
| import org.junit.Test; |
| |
| public class UnsignedLongTest |
| { |
| private static final byte[] TWO_TO_64_PLUS_ONE_BYTES = new byte[] { (byte) 1, (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 1 }; |
| private static final byte[] TWO_TO_64_MINUS_ONE_BYTES = new byte[] {(byte) 1, (byte) 1, (byte) 1, (byte) 1, (byte) 1, (byte) 1, (byte) 1, (byte) 1 }; |
| |
| @Test |
| public void testValueOfStringWithNegativeNumberThrowsNFE() throws Exception |
| { |
| try |
| { |
| UnsignedLong.valueOf("-1"); |
| fail("Expected exception was not thrown"); |
| } |
| catch(NumberFormatException nfe) |
| { |
| //expected |
| } |
| } |
| |
| @Test |
| public void testValueOfBigIntegerWithNegativeNumberThrowsNFE() throws Exception |
| { |
| try |
| { |
| UnsignedLong.valueOf(BigInteger.valueOf(-1L)); |
| fail("Expected exception was not thrown"); |
| } |
| catch(NumberFormatException nfe) |
| { |
| //expected |
| } |
| } |
| |
| @Test |
| public void testValuesOfStringWithinRangeSucceed() throws Exception |
| { |
| //check 0 (min) to confirm success |
| UnsignedLong min = UnsignedLong.valueOf("0"); |
| assertEquals("unexpected value", 0, min.longValue()); |
| |
| //check 2^64 -1 (max) to confirm success |
| BigInteger onLimit = new BigInteger(TWO_TO_64_MINUS_ONE_BYTES); |
| String onlimitString = onLimit.toString(); |
| UnsignedLong max = UnsignedLong.valueOf(onlimitString); |
| assertEquals("unexpected value", onLimit, max.bigIntegerValue()); |
| } |
| |
| @Test |
| public void testValuesOfBigIntegerWithinRangeSucceed() throws Exception |
| { |
| //check 0 (min) to confirm success |
| UnsignedLong min = UnsignedLong.valueOf(BigInteger.ZERO); |
| assertEquals("unexpected value", 0, min.longValue()); |
| |
| //check 2^64 -1 (max) to confirm success |
| BigInteger onLimit = new BigInteger(TWO_TO_64_MINUS_ONE_BYTES); |
| UnsignedLong max = UnsignedLong.valueOf(onLimit); |
| assertEquals("unexpected value", onLimit, max.bigIntegerValue()); |
| |
| //check Long.MAX_VALUE to confirm success |
| UnsignedLong longMax = UnsignedLong.valueOf(BigInteger.valueOf(Long.MAX_VALUE)); |
| assertEquals("unexpected value", Long.MAX_VALUE, longMax.longValue()); |
| } |
| |
| @Test |
| public void testValueOfStringAboveMaxValueThrowsNFE() throws Exception |
| { |
| //2^64 + 1 (value 2 over max) |
| BigInteger aboveLimit = new BigInteger(TWO_TO_64_PLUS_ONE_BYTES); |
| try |
| { |
| UnsignedLong.valueOf(aboveLimit.toString()); |
| fail("Expected exception was not thrown"); |
| } |
| catch(NumberFormatException nfe) |
| { |
| //expected |
| } |
| |
| //2^64 (value 1 over max) |
| aboveLimit = aboveLimit.subtract(BigInteger.ONE); |
| try |
| { |
| UnsignedLong.valueOf(aboveLimit.toString()); |
| fail("Expected exception was not thrown"); |
| } |
| catch(NumberFormatException nfe) |
| { |
| //expected |
| } |
| } |
| |
| @Test |
| public void testValueOfBigIntegerAboveMaxValueThrowsNFE() throws Exception |
| { |
| //2^64 + 1 (value 2 over max) |
| BigInteger aboveLimit = new BigInteger(TWO_TO_64_PLUS_ONE_BYTES); |
| try |
| { |
| UnsignedLong.valueOf(aboveLimit); |
| fail("Expected exception was not thrown"); |
| } |
| catch(NumberFormatException nfe) |
| { |
| //expected |
| } |
| |
| //2^64 (value 1 over max) |
| aboveLimit = aboveLimit.subtract(BigInteger.ONE); |
| try |
| { |
| UnsignedLong.valueOf(aboveLimit); |
| fail("Expected exception was not thrown"); |
| } |
| catch(NumberFormatException nfe) |
| { |
| //expected |
| } |
| } |
| } |