/*
* 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.cassandra.dht;
import java.nio.ByteBuffer;
import java.util.Collection;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Random;
import java.util.Set;
import com.google.common.base.Joiner;
import org.apache.commons.lang3.StringUtils;
import org.junit.Test;
import org.apache.commons.collections.CollectionUtils;
import org.apache.cassandra.db.PartitionPosition;
import org.apache.cassandra.dht.ByteOrderedPartitioner.BytesToken;
import org.apache.cassandra.dht.RandomPartitioner.BigIntegerToken;
import static java.util.Arrays.asList;
import static org.apache.cassandra.Util.range;
import static org.junit.Assert.*;
public class RangeTest
{
@Test
public void testContains()
{
Range<Token> left = new Range<Token>(new BigIntegerToken("0"), new BigIntegerToken("100"));
assert !left.contains(new BigIntegerToken("0"));
assert left.contains(new BigIntegerToken("10"));
assert left.contains(new BigIntegerToken("100"));
assert !left.contains(new BigIntegerToken("101"));
}
@Test
public void testContainsWrapping()
{
Range<Token> range = new Range<Token>(new BigIntegerToken("0"), new BigIntegerToken("0"));
assert range.contains(new BigIntegerToken("0"));
assert range.contains(new BigIntegerToken("10"));
assert range.contains(new BigIntegerToken("100"));
assert range.contains(new BigIntegerToken("101"));
range = new Range<Token>(new BigIntegerToken("100"), new BigIntegerToken("0"));
assert range.contains(new BigIntegerToken("0"));
assert !range.contains(new BigIntegerToken("1"));
assert !range.contains(new BigIntegerToken("100"));
assert range.contains(new BigIntegerToken("200"));
}
@Test
public void testContainsRange()
{
Range<Token> one = new Range<Token>(new BigIntegerToken("2"), new BigIntegerToken("10"));
Range<Token> two = new Range<Token>(new BigIntegerToken("2"), new BigIntegerToken("5"));
Range<Token> thr = new Range<Token>(new BigIntegerToken("5"), new BigIntegerToken("10"));
Range<Token> fou = new Range<Token>(new BigIntegerToken("10"), new BigIntegerToken("12"));
assert one.contains(two);
assert one.contains(thr);
assert !one.contains(fou);
assert !two.contains(one);
assert !two.contains(thr);
assert !two.contains(fou);
assert !thr.contains(one);
assert !thr.contains(two);
assert !thr.contains(fou);
assert !fou.contains(one);
assert !fou.contains(two);
assert !fou.contains(thr);
}
@Test
public void testContainsRangeWrapping()
{
Range<Token> one = new Range<Token>(new BigIntegerToken("10"), new BigIntegerToken("2"));
Range<Token> two = new Range<Token>(new BigIntegerToken("5"), new BigIntegerToken("3"));
Range<Token> thr = new Range<Token>(new BigIntegerToken("10"), new BigIntegerToken("12"));
Range<Token> fou = new Range<Token>(new BigIntegerToken("2"), new BigIntegerToken("6"));
Range<Token> fiv = new Range<Token>(new BigIntegerToken("0"), new BigIntegerToken("0"));
assert !one.contains(two);
assert one.contains(thr);
assert !one.contains(fou);
assert two.contains(one);
assert two.contains(thr);
assert !two.contains(fou);
assert !thr.contains(one);
assert !thr.contains(two);
assert !thr.contains(fou);
assert !fou.contains(one);
assert !fou.contains(two);
assert !fou.contains(thr);
assert fiv.contains(one);
assert fiv.contains(two);
assert fiv.contains(thr);
assert fiv.contains(fou);
}
@Test
public void testContainsRangeOneWrapping()
{
Range<Token> wrap1 = new Range<Token>(new BigIntegerToken("0"), new BigIntegerToken("0"));
Range<Token> wrap2 = new Range<Token>(new BigIntegerToken("10"), new BigIntegerToken("2"));
Range<Token> nowrap1 = new Range<Token>(new BigIntegerToken("0"), new BigIntegerToken("2"));
Range<Token> nowrap2 = new Range<Token>(new BigIntegerToken("2"), new BigIntegerToken("10"));
Range<Token> nowrap3 = new Range<Token>(new BigIntegerToken("10"), new BigIntegerToken("100"));
assert wrap1.contains(nowrap1);
assert wrap1.contains(nowrap2);
assert wrap1.contains(nowrap3);
assert wrap2.contains(nowrap1);
assert !wrap2.contains(nowrap2);
assert wrap2.contains(nowrap3);
}
@Test
public void testIntersects()
{
Range<Token> all = new Range<Token>(new BigIntegerToken("0"), new BigIntegerToken("0")); // technically, this is a wrapping range
Range<Token> one = new Range<Token>(new BigIntegerToken("2"), new BigIntegerToken("10"));
Range<Token> two = new Range<Token>(new BigIntegerToken("0"), new BigIntegerToken("8"));
Range<Token> not = new Range<Token>(new BigIntegerToken("10"), new BigIntegerToken("12"));
assert all.intersects(one);
assert all.intersects(two);
assert one.intersects(two);
assert two.intersects(one);
assert !one.intersects(not);
assert !not.intersects(one);
assert !two.intersects(not);
assert !not.intersects(two);
}
@Test
public void testIntersectsWrapping()
{
Range<Token> onewrap = new Range<Token>(new BigIntegerToken("10"), new BigIntegerToken("2"));
Range<Token> onecomplement = new Range<Token>(onewrap.right, onewrap.left);
Range<Token> onestartswith = new Range<Token>(onewrap.left, new BigIntegerToken("12"));
Range<Token> oneendswith = new Range<Token>(new BigIntegerToken("1"), onewrap.right);
Range<Token> twowrap = new Range<Token>(new BigIntegerToken("5"), new BigIntegerToken("3"));
Range<Token> not = new Range<Token>(new BigIntegerToken("2"), new BigIntegerToken("6"));
assert !onewrap.intersects(onecomplement);
assert onewrap.intersects(onestartswith);
assert onewrap.intersects(oneendswith);
assert onewrap.intersects(twowrap);
assert twowrap.intersects(onewrap);
assert !onewrap.intersects(not);
assert !not.intersects(onewrap);
assert twowrap.intersects(not);
assert not.intersects(twowrap);
}
@SafeVarargs
static <T extends RingPosition<T>> void assertIntersection(Range<T> one, Range<T> two, Range<T>... ranges)
{
Set<Range<T>> correct = Range.rangeSet(ranges);
Set<Range<T>> result1 = one.intersectionWith(two);
assert result1.equals(correct) : String.format("%s != %s",
StringUtils.join(result1, ","),
StringUtils.join(correct, ","));
Set<Range<T>> result2 = two.intersectionWith(one);
assert result2.equals(correct) : String.format("%s != %s",
StringUtils.join(result2, ","),
StringUtils.join(correct, ","));
}
private void assertNoIntersection(Range<Token> wraps1, Range<Token> nowrap3)
{
assertIntersection(wraps1, nowrap3);
}
@Test
public void testIntersectionWithAll()
{
Range<Token> all0 = new Range<Token>(new BigIntegerToken("0"), new BigIntegerToken("0"));
Range<Token> all10 = new Range<Token>(new BigIntegerToken("10"), new BigIntegerToken("10"));
Range<Token> all100 = new Range<Token>(new BigIntegerToken("100"), new BigIntegerToken("100"));
Range<Token> all1000 = new Range<Token>(new BigIntegerToken("1000"), new BigIntegerToken("1000"));
Range<Token> wraps = new Range<Token>(new BigIntegerToken("100"), new BigIntegerToken("10"));
assertIntersection(all0, wraps, wraps);
assertIntersection(all10, wraps, wraps);
assertIntersection(all100, wraps, wraps);
assertIntersection(all1000, wraps, wraps);
}
@Test
public void testIntersectionContains()
{
Range<Token> wraps1 = new Range<Token>(new BigIntegerToken("100"), new BigIntegerToken("10"));
Range<Token> wraps2 = new Range<Token>(new BigIntegerToken("90"), new BigIntegerToken("20"));
Range<Token> wraps3 = new Range<Token>(new BigIntegerToken("90"), new BigIntegerToken("0"));
Range<Token> nowrap1 = new Range<Token>(new BigIntegerToken("100"), new BigIntegerToken("110"));
Range<Token> nowrap2 = new Range<Token>(new BigIntegerToken("0"), new BigIntegerToken("10"));
Range<Token> nowrap3 = new Range<Token>(new BigIntegerToken("0"), new BigIntegerToken("9"));
assertIntersection(wraps1, wraps2, wraps1);
assertIntersection(wraps3, wraps2, wraps3);
assertIntersection(wraps1, nowrap1, nowrap1);
assertIntersection(wraps1, nowrap2, nowrap2);
assertIntersection(nowrap2, nowrap3, nowrap3);
assertIntersection(wraps1, wraps1, wraps1);
assertIntersection(nowrap1, nowrap1, nowrap1);
assertIntersection(nowrap2, nowrap2, nowrap2);
assertIntersection(wraps3, wraps3, wraps3);
}
@Test
public void testNoIntersection()
{
Range<Token> wraps1 = new Range<Token>(new BigIntegerToken("100"), new BigIntegerToken("10"));
Range<Token> wraps2 = new Range<Token>(new BigIntegerToken("100"), new BigIntegerToken("0"));
Range<Token> nowrap1 = new Range<Token>(new BigIntegerToken("0"), new BigIntegerToken("100"));
Range<Token> nowrap2 = new Range<Token>(new BigIntegerToken("100"), new BigIntegerToken("200"));
Range<Token> nowrap3 = new Range<Token>(new BigIntegerToken("10"), new BigIntegerToken("100"));
assertNoIntersection(wraps1, nowrap3);
assertNoIntersection(wraps2, nowrap1);
assertNoIntersection(nowrap1, nowrap2);
}
@Test
public void testIntersectionOneWraps()
{
Range<Token> wraps1 = new Range<Token>(new BigIntegerToken("100"), new BigIntegerToken("10"));
Range<Token> wraps2 = new Range<Token>(new BigIntegerToken("100"), new BigIntegerToken("0"));
Range<Token> nowrap1 = new Range<Token>(new BigIntegerToken("0"), new BigIntegerToken("200"));
Range<Token> nowrap2 = new Range<Token>(new BigIntegerToken("0"), new BigIntegerToken("100"));
assertIntersection(wraps1,
nowrap1,
new Range<Token>(new BigIntegerToken("0"), new BigIntegerToken("10")),
new Range<Token>(new BigIntegerToken("100"), new BigIntegerToken("200")));
assertIntersection(wraps2,
nowrap1,
new Range<Token>(new BigIntegerToken("100"), new BigIntegerToken("200")));
assertIntersection(wraps1,
nowrap2,
new Range<Token>(new BigIntegerToken("0"), new BigIntegerToken("10")));
}
@Test
public void testIntersectionTwoWraps()
{
Range<Token> wraps1 = new Range<Token>(new BigIntegerToken("100"), new BigIntegerToken("20"));
Range<Token> wraps2 = new Range<Token>(new BigIntegerToken("120"), new BigIntegerToken("90"));
Range<Token> wraps3 = new Range<Token>(new BigIntegerToken("120"), new BigIntegerToken("110"));
Range<Token> wraps4 = new Range<Token>(new BigIntegerToken("10"), new BigIntegerToken("0"));
Range<Token> wraps5 = new Range<Token>(new BigIntegerToken("10"), new BigIntegerToken("1"));
Range<Token> wraps6 = new Range<Token>(new BigIntegerToken("30"), new BigIntegerToken("10"));
assertIntersection(wraps1,
wraps2,
new Range<Token>(new BigIntegerToken("120"), new BigIntegerToken("20")));
assertIntersection(wraps1,
wraps3,
new Range<Token>(new BigIntegerToken("120"), new BigIntegerToken("20")),
new Range<Token>(new BigIntegerToken("100"), new BigIntegerToken("110")));
assertIntersection(wraps1,
wraps4,
new Range<Token>(new BigIntegerToken("10"), new BigIntegerToken("20")),
new Range<Token>(new BigIntegerToken("100"), new BigIntegerToken("0")));
assertIntersection(wraps1,
wraps5,
new Range<Token>(new BigIntegerToken("10"), new BigIntegerToken("20")),
new Range<Token>(new BigIntegerToken("100"), new BigIntegerToken("1")));
assertIntersection(wraps1,
wraps6,
new Range<Token>(new BigIntegerToken("100"), new BigIntegerToken("10")));
}
@Test
public void testByteTokensCompare()
{
Token t1 = new BytesToken(ByteBuffer.wrap(new byte[] { 1,2,3 }));
Token t2 = new BytesToken(ByteBuffer.wrap(new byte[] { 1,2,3 }));
Token t3 = new BytesToken(ByteBuffer.wrap(new byte[]{1, 2, 3, 4}));
assert t1.compareTo(t2) == 0;
assert t1.compareTo(t3) < 0;
assert t3.compareTo(t1) > 0;
assert t1.compareTo(t1) == 0;
Token t4 = new BytesToken(new byte[] { 1,2,3 });
Token t5 = new BytesToken(new byte[] { 4,5,6,7 });
assert t4.compareTo(t5) < 0;
assert t5.compareTo(t4) > 0;
assert t1.compareTo(t4) == 0;
}
private Range<Token> makeRange(long token1, long token2)
{
return new Range<>(new Murmur3Partitioner.LongToken(token1), new Murmur3Partitioner.LongToken(token2));
}
private void assertRanges(Set<Range<Token>> result, Long ... tokens)
{
assert tokens.length % 2 ==0;
final Set<Range<Token>> expected = new HashSet<>();
for(int i=0; i < tokens.length; i+=2)
{
expected.add(makeRange(tokens[i], tokens[i+1]));
}
assert CollectionUtils.isEqualCollection(result, expected);
}
@Test
public void testSubtractAll()
{
Range<Token> range = new Range<Token>(new Murmur3Partitioner.LongToken(1L), new Murmur3Partitioner.LongToken(100L));
Collection<Range<Token>> collection = new HashSet<>();
collection.add(makeRange(1L, 10L));
assertRanges(range.subtractAll(collection), 10L, 100L);
collection.add(makeRange(90L, 100L));
assertRanges(range.subtractAll(collection), 10L, 90L);
collection.add(makeRange(54L, 60L));
assertRanges(range.subtractAll(collection), 10L, 54L, 60L, 90L);
collection.add(makeRange(80L, 95L));
assertRanges(range.subtractAll(collection), 10L, 54L, 60L, 80L);
}
@Test
public void testSubtractAllWithWrapAround()
{
Range<Token> range = new Range<Token>(new Murmur3Partitioner.LongToken(100L), new Murmur3Partitioner.LongToken(10L));
Collection<Range<Token>> collection = new HashSet<>();
collection.add(makeRange(20L, 30L));
assertRanges(range.subtractAll(collection), 100L, 10L);
collection.add(makeRange(200L, 500L));
assertRanges(range.subtractAll(collection), 100L, 200L, 500L, 10L);
collection.add(makeRange(1L, 10L));
assertRanges(range.subtractAll(collection), 100L, 200L, 500L, 1L);
collection.add(makeRange(0L, 1L));
assertRanges(range.subtractAll(collection), 100L, 200L, 500L, 0L);
collection.add(makeRange(1000L, 0));
assertRanges(range.subtractAll(collection), 100L, 200L, 500L, 1000L);
}
private Range<Token> makeRange(String token1, String token2)
{
return new Range<Token>(new BigIntegerToken(token1), new BigIntegerToken(token2));
}
private Set<Range<Token>> makeRanges(String[][] tokenPairs)
{
Set<Range<Token>> ranges = new HashSet<Range<Token>>();
for (int i = 0; i < tokenPairs.length; ++i)
ranges.add(makeRange(tokenPairs[i][0], tokenPairs[i][1]));
return ranges;
}
private void checkDifference(Range<Token> oldRange, String[][] newTokens, String[][] expected)
{
Set<Range<Token>> ranges = makeRanges(newTokens);
for (Range<Token> newRange : ranges)
{
Set<Range<Token>> diff = oldRange.differenceToFetch(newRange);
assert diff.equals(makeRanges(expected)) : "\n" +
"Old range: " + oldRange.toString() + "\n" +
"New range: " + newRange.toString() + "\n" +
"Difference: (result) " + diff.toString() + " != " + makeRanges(expected) + " (expected)";
}
}
@Test
public void testDifferenceToFetchNoWrap()
{
Range<Token> oldRange = makeRange("10", "40");
// New range is entirely contained
String[][] newTokens1 = { { "20", "30" }, { "10", "20" }, { "10", "40" }, { "20", "40" } };
String[][] expected1 = { };
checkDifference(oldRange, newTokens1, expected1);
// Right half of the new range is needed
String[][] newTokens2 = { { "10", "50" }, { "20", "50" }, { "40", "50" } };
String[][] expected2 = { { "40", "50" } };
checkDifference(oldRange, newTokens2, expected2);
// Left half of the new range is needed
String[][] newTokens3 = { { "0", "10" }, { "0", "20" }, { "0", "40" } };
String[][] expected3 = { { "0", "10" } };
checkDifference(oldRange, newTokens3, expected3);
// Parts on both ends of the new range are needed
String[][] newTokens4 = { { "0", "50" } };
String[][] expected4 = { { "0", "10" }, { "40", "50" } };
checkDifference(oldRange, newTokens4, expected4);
}
@Test
public void testDifferenceToFetchBothWrap()
{
Range<Token> oldRange = makeRange("1010", "40");
// New range is entirely contained
String[][] newTokens1 = { { "1020", "30" }, { "1010", "20" }, { "1010", "40" }, { "1020", "40" } };
String[][] expected1 = { };
checkDifference(oldRange, newTokens1, expected1);
// Right half of the new range is needed
String[][] newTokens2 = { { "1010", "50" }, { "1020", "50" }, { "1040", "50" } };
String[][] expected2 = { { "40", "50" } };
checkDifference(oldRange, newTokens2, expected2);
// Left half of the new range is needed
String[][] newTokens3 = { { "1000", "10" }, { "1000", "20" }, { "1000", "40" } };
String[][] expected3 = { { "1000", "1010" } };
checkDifference(oldRange, newTokens3, expected3);
// Parts on both ends of the new range are needed
String[][] newTokens4 = { { "1000", "50" } };
String[][] expected4 = { { "1000", "1010" }, { "40", "50" } };
checkDifference(oldRange, newTokens4, expected4);
}
@Test
public void testDifferenceToFetchOldWraps()
{
Range<Token> oldRange = makeRange("1010", "40");
// New range is entirely contained
String[][] newTokens1 = { { "0", "30" }, { "0", "40" }, { "10", "40" } };
String[][] expected1 = { };
checkDifference(oldRange, newTokens1, expected1);
// Right half of the new range is needed
String[][] newTokens2 = { { "0", "50" }, { "10", "50" }, { "40", "50" } };
String[][] expected2 = { { "40", "50" } };
checkDifference(oldRange, newTokens2, expected2);
// Whole range is needed
String[][] newTokens3 = { { "50", "90" } };
String[][] expected3 = { { "50", "90" } };
checkDifference(oldRange, newTokens3, expected3);
// Both ends of the new range overlaps the old range
String[][] newTokens4 = { { "10", "1010" }, { "40", "1010" }, { "10", "1030" }, { "40", "1030" } };
String[][] expected4 = { { "40", "1010" } };
checkDifference(oldRange, newTokens4, expected4);
// Only RHS of the new range overlaps the old range
String[][] newTokens5 = { { "60", "1010" }, { "60", "1030" } };
String[][] expected5 = { { "60", "1010" } };
checkDifference(oldRange, newTokens5, expected5);
}
@Test
public void testDifferenceToFetchNewWraps()
{
Range<Token> oldRange = makeRange("0", "40");
// Only the LHS of the new range is needed
String[][] newTokens1 = { { "1010", "0" }, { "1010", "10" }, { "1010", "40" } };
String[][] expected1 = { { "1010", "0" } };
checkDifference(oldRange, newTokens1, expected1);
// Both ends of the new range are needed
String[][] newTokens2 = { { "1010", "50" } };
String[][] expected2 = { { "1010", "0" }, { "40", "50" } };
checkDifference(oldRange, newTokens2, expected2);
oldRange = makeRange("20", "40");
// Whole new range is needed
String[][] newTokens3 = { { "1010", "0" } };
String[][] expected3 = { { "1010", "0" } };
checkDifference(oldRange, newTokens3, expected3);
// Whole new range is needed (matching endpoints)
String[][] newTokens4 = { { "1010", "20" } };
String[][] expected4 = { { "1010", "20" } };
checkDifference(oldRange, newTokens4, expected4);
// Only RHS of new range is needed
String[][] newTokens5 = { { "30", "0" }, { "40", "0" } };
String[][] expected5 = { { "40", "0" } };
checkDifference(oldRange, newTokens5, expected5);
// Only RHS of new range is needed (matching endpoints)
String[][] newTokens6 = { { "30", "20" }, { "40", "20" } };
String[][] expected6 = { { "40", "20" } };
checkDifference(oldRange, newTokens6, expected6);
}
private <T extends RingPosition<T>> void assertNormalize(List<Range<T>> input, List<Range<T>> expected)
{
List<Range<T>> result = Range.normalize(input);
assert result.equals(expected) : "Expecting " + expected + " but got " + result;
}
@Test
public void testNormalizeNoop()
{
List<Range<PartitionPosition>> l;
l = asList(range("1", "3"), range("4", "5"));
assertNormalize(l, l);
}
@Test
public void testNormalizeSimpleOverlap()
{
List<Range<PartitionPosition>> input, expected;
input = asList(range("1", "4"), range("3", "5"));
expected = asList(range("1", "5"));
assertNormalize(input, expected);
input = asList(range("1", "4"), range("1", "4"));
expected = asList(range("1", "4"));
assertNormalize(input, expected);
}
@Test
public void testNormalizeSort()
{
List<Range<PartitionPosition>> input, expected;
input = asList(range("4", "5"), range("1", "3"));
expected = asList(range("1", "3"), range("4", "5"));
assertNormalize(input, expected);
}
@Test
public void testNormalizeUnwrap()
{
List<Range<PartitionPosition>> input, expected;
input = asList(range("9", "2"));
expected = asList(range("", "2"), range("9", ""));
assertNormalize(input, expected);
}
@Test
public void testNormalizeComplex()
{
List<Range<PartitionPosition>> input, expected;
input = asList(range("8", "2"), range("7", "9"), range("4", "5"));
expected = asList(range("", "2"), range("4", "5"), range("7", ""));
assertNormalize(input, expected);
input = asList(range("5", "9"), range("2", "5"));
expected = asList(range("2", "9"));
assertNormalize(input, expected);
input = asList(range ("", "1"), range("9", "2"), range("4", "5"), range("", ""));
expected = asList(range("", ""));
assertNormalize(input, expected);
input = asList(range ("", "1"), range("1", "4"), range("4", "5"), range("5", ""));
expected = asList(range("", ""));
assertNormalize(input, expected);
}
@Test
public void testRandomOrderedRangeContainmentChecker()
{
Random r = new Random();
for (int j = 0; j < 1000; j++)
{
int numTokens = r.nextInt(300) + 1;
List<Range<Token>> ranges = new ArrayList<>(numTokens);
List<Token> tokens = new ArrayList<>(2 * numTokens);
for (int i = 0; i < 2 * numTokens; i++)
tokens.add(t(r.nextLong()));
Collections.sort(tokens);
for (int i = 0; i < tokens.size(); i++)
{
ranges.add(new Range<>(tokens.get(i), tokens.get(i + 1)));
i++;
}
List<Token> tokensToTest = new ArrayList<>();
for (int i = 0; i < 10000; i++)
tokensToTest.add(t(r.nextLong()));
tokensToTest.add(t(Long.MAX_VALUE));
tokensToTest.add(t(Long.MIN_VALUE));
tokensToTest.add(t(Long.MAX_VALUE - 1));
tokensToTest.add(t(Long.MIN_VALUE + 1));
Collections.sort(tokensToTest);
Range.OrderedRangeContainmentChecker checker = new Range.OrderedRangeContainmentChecker(ranges);
for (Token t : tokensToTest)
{
if (checker.contains(t) != Range.isInRanges(t, ranges)) // avoid running Joiner.on(..) every iteration
fail(String.format("This should never flap! If it does, it is a bug (ranges = %s, token = %s)", Joiner.on(",").join(ranges), t));
}
}
}
@Test
public void testBoundariesORCC()
{
List<Range<Token>> ranges = asList(r(Long.MIN_VALUE, Long.MIN_VALUE + 1), r(Long.MAX_VALUE - 1, Long.MAX_VALUE));
Range.OrderedRangeContainmentChecker checker = new Range.OrderedRangeContainmentChecker(ranges);
assertFalse(checker.contains(t(Long.MIN_VALUE)));
assertTrue(checker.contains(t(Long.MIN_VALUE + 1)));
assertFalse(checker.contains(t(0)));
assertFalse(checker.contains(t(Long.MAX_VALUE - 1)));
assertTrue(checker.contains(t(Long.MAX_VALUE)));
}
private static Range<Token> r(long left, long right)
{
return new Range<>(t(left), t(right));
}
private static Token t(long t)
{
return new Murmur3Partitioner.LongToken(t);
}
@Test
public void testCompareTo_SameObject_WrapAround()
{
Range<Token> range = r(10, -10);
assertEquals(0, range.compareTo(range));
}
@Test
public void testCompareTo_BothWrapAround()
{
Range<Token> r0 = r(10, -10);
Range<Token> r1 = r(20, -5);
assertNotSame(r0.compareTo(r1), r1.compareTo(r0));
}
}