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sdm04/src/test/java/ch/usi/inf/sdm/sdm04/util/FluentBitSetTest.java

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Java

/*
* 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 ch.usi.inf.sdm.sdm04.util;
import static org.junit.jupiter.api.Assertions.assertArrayEquals;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.junit.jupiter.api.Assertions.fail;
import java.util.BitSet;
import org.apache.commons.lang3.ArrayUtils;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
/**
* Tests {@link FluentBitSet}.
* <p>
* Test code originally from Apache Harmony for FluentBitSet and adapted.
* </p>
*/
public class FluentBitSetTest {
private BitSet eightBs;
private FluentBitSet eightFbs;
/**
* BeforeEach.
*/
@BeforeEach
public void beforeEach() {
eightFbs = newInstance();
for (int i = 0; i < 8; i++) {
eightFbs.set(i);
}
eightBs = eightFbs.bitSet();
}
private FluentBitSet newInstance() {
return new FluentBitSet();
}
private FluentBitSet newInstance(final int nbits) {
return new FluentBitSet(nbits);
}
/**
* Tests {@link FluentBitSet#and(FluentBitSet)}.
*/
@Test
public void test_and() {
// Test for method void java.util.BitSet.and(BitSet)
final FluentBitSet bs = newInstance(128);
// Initialize the bottom half of the BitSet
for (int i = 64; i < 128; i++) {
bs.set(i);
}
eightFbs.and(bs);
assertFalse(eightFbs.equals(bs), "AND failed to clear bits");
eightFbs.set(3);
bs.set(3);
eightFbs.and(bs);
assertTrue(bs.get(3), "AND failed to maintain set bits");
bs.and(eightFbs);
for (int i = 64; i < 128; i++) {
assertFalse(bs.get(i), "Failed to clear extra bits in the receiver BitSet");
}
}
/**
* Tests {@link FluentBitSet#and(BitSet)}.
*/
@Test
public void test_and_BitSet() {
// Test for method void java.util.BitSet.and(BitSet)
final FluentBitSet bs = newInstance(128);
// Initialize the bottom half of the BitSet
for (int i = 64; i < 128; i++) {
bs.set(i);
}
eightFbs.and(bs.bitSet());
assertFalse(eightFbs.equals(bs), "AND failed to clear bits");
eightFbs.set(3);
bs.set(3);
eightFbs.and(bs.bitSet());
assertTrue(bs.get(3), "AND failed to maintain set bits");
bs.and(eightBs);
for (int i = 64; i < 128; i++) {
assertFalse(bs.get(i), "Failed to clear extra bits in the receiver BitSet");
}
}
/**
* Tests {@link FluentBitSet#andNot(BitSet)}.
*/
@Test
public void test_andNot() {
FluentBitSet bs = (FluentBitSet) eightFbs.clone();
bs.clear(5);
final FluentBitSet bs2 = newInstance();
bs2.set(2);
bs2.set(3);
bs.andNot(bs2);
assertEquals("{0, 1, 4, 6, 7}", bs.toString(), "Incorrect bitset after andNot");
bs = newInstance(0);
bs.andNot(bs2);
assertEquals(0, bs.size(), "Incorrect size");
}
/**
* Tests {@link FluentBitSet#andNot(BitSet)}.
*/
@Test
public void test_andNot_BitSet() {
FluentBitSet bs = (FluentBitSet) eightFbs.clone();
bs.clear(5);
final FluentBitSet bs2 = newInstance();
bs2.set(2);
bs2.set(3);
bs.andNot(bs2.bitSet());
assertEquals("{0, 1, 4, 6, 7}", bs.toString(), "Incorrect bitset after andNot");
bs = newInstance(0);
bs.andNot(bs2.bitSet());
assertEquals(0, bs.size(), "Incorrect size");
}
/**
* Tests {@link FluentBitSet#cardinality()}.
*/
@Test
public void test_cardinality() {
// test for method int java.util.BitSet.cardinality()
final FluentBitSet bs = newInstance(500);
bs.set(5);
bs.set(32);
bs.set(63);
bs.set(64);
bs.set(71, 110);
bs.set(127, 130);
bs.set(193);
bs.set(450);
assertEquals(48, bs.cardinality(), "cardinality() returned wrong value");
bs.flip(0, 500);
assertEquals(452, bs.cardinality(), "cardinality() returned wrong value");
bs.clear();
assertEquals(0, bs.cardinality(), "cardinality() returned wrong value");
bs.set(0, 500);
assertEquals(500, bs.cardinality(), "cardinality() returned wrong value");
}
/**
* Tests {@link FluentBitSet#clear()}.
*/
@Test
public void test_clear() {
eightFbs.clear();
for (int i = 0; i < 8; i++) {
assertFalse(eightFbs.get(i), "Clear didn't clear bit " + i);
}
assertEquals(0, eightFbs.length(), "Test1: Wrong length");
final FluentBitSet bs = newInstance(3400);
bs.set(0, bs.size() - 1); // ensure all bits are 1's
bs.set(bs.size() - 1);
bs.clear();
assertEquals(0, bs.length(), "Test2: Wrong length");
assertTrue(bs.isEmpty(), "Test2: isEmpty() returned incorrect value");
assertEquals(0, bs.cardinality(), "Test2: cardinality() returned incorrect value");
}
/**
* Tests {@link FluentBitSet#clear(int)}.
*/
@Test
public void test_clearI() {
// Test for method void java.util.BitSet.clear(int)
eightFbs.clear(7);
assertFalse(eightFbs.get(7), "Failed to clear bit");
// Check to see all other bits are still set
for (int i = 0; i < 7; i++) {
assertTrue(eightFbs.get(i), "Clear cleared incorrect bits");
}
eightFbs.clear(165);
assertFalse(eightFbs.get(165), "Failed to clear bit");
// Try out of range
assertThrows(IndexOutOfBoundsException.class, () -> eightFbs.clear(-1));
final FluentBitSet bs = newInstance(0);
assertEquals(0, bs.length(), "Test1: Wrong length,");
assertEquals(0, bs.size(), "Test1: Wrong size,");
bs.clear(0);
assertEquals(0, bs.length(), "Test2: Wrong length,");
assertEquals(0, bs.size(), "Test2: Wrong size,");
bs.clear(60);
assertEquals(0, bs.length(), "Test3: Wrong length,");
assertEquals(0, bs.size(), "Test3: Wrong size,");
bs.clear(120);
assertEquals(0, bs.size(), "Test4: Wrong size,");
assertEquals(0, bs.length(), "Test4: Wrong length,");
bs.set(25);
assertEquals(64, bs.size(), "Test5: Wrong size,");
assertEquals(26, bs.length(), "Test5: Wrong length,");
bs.clear(80);
assertEquals(64, bs.size(), "Test6: Wrong size,");
assertEquals(26, bs.length(), "Test6: Wrong length,");
bs.clear(25);
assertEquals(64, bs.size(), "Test7: Wrong size,");
assertEquals(0, bs.length(), "Test7: Wrong length,");
}
/**
* Tests {@link FluentBitSet#clear(int, int)}.
*/
@Test
public void test_clearII() {
// Regression for HARMONY-98
final FluentBitSet bitset = newInstance();
for (int i = 0; i < 20; i++) {
bitset.set(i);
}
bitset.clear(10, 10);
// Test for method void java.util.BitSet.clear(int, int)
// pos1 and pos2 are in the same bitset element
FluentBitSet bs = newInstance(16);
int initialSize = bs.size();
bs.set(0, initialSize);
bs.clear(5);
bs.clear(15);
bs.clear(7, 11);
for (int i = 0; i < 7; i++) {
if (i == 5) {
assertFalse(bs.get(i), "Shouldn't have flipped bit " + i);
} else {
assertTrue(bs.get(i), "Shouldn't have cleared bit " + i);
}
}
for (int i = 7; i < 11; i++) {
assertFalse(bs.get(i), "Failed to clear bit " + i);
}
for (int i = 11; i < initialSize; i++) {
if (i == 15) {
assertFalse(bs.get(i), "Shouldn't have flipped bit " + i);
} else {
assertTrue(bs.get(i), "Shouldn't have cleared bit " + i);
}
}
for (int i = initialSize; i < bs.size(); i++) {
assertFalse(bs.get(i), "Shouldn't have flipped bit " + i);
}
// pos1 and pos2 is in the same bitset element, boundry testing
bs = newInstance(16);
initialSize = bs.size();
bs.set(0, initialSize);
bs.clear(7, 64);
assertEquals(64, bs.size(), "Failed to grow BitSet");
for (int i = 0; i < 7; i++) {
assertTrue(bs.get(i), "Shouldn't have cleared bit " + i);
}
for (int i = 7; i < 64; i++) {
assertFalse(bs.get(i), "Failed to clear bit " + i);
}
for (int i = 64; i < bs.size(); i++) {
assertTrue(!bs.get(i), "Shouldn't have flipped bit " + i);
}
// more boundary testing
bs = newInstance(32);
initialSize = bs.size();
bs.set(0, initialSize);
bs.clear(0, 64);
for (int i = 0; i < 64; i++) {
assertFalse(bs.get(i), "Failed to clear bit " + i);
}
for (int i = 64; i < bs.size(); i++) {
assertFalse(bs.get(i), "Shouldn't have flipped bit " + i);
}
bs = newInstance(32);
initialSize = bs.size();
bs.set(0, initialSize);
bs.clear(0, 65);
for (int i = 0; i < 65; i++) {
assertFalse(bs.get(i), "Failed to clear bit " + i);
}
for (int i = 65; i < bs.size(); i++) {
assertFalse(bs.get(i), "Shouldn't have flipped bit " + i);
}
// pos1 and pos2 are in two sequential bitset elements
bs = newInstance(128);
initialSize = bs.size();
bs.set(0, initialSize);
bs.clear(7);
bs.clear(110);
bs.clear(9, 74);
for (int i = 0; i < 9; i++) {
if (i == 7) {
assertFalse(bs.get(i), "Shouldn't have flipped bit " + i);
} else {
assertTrue(bs.get(i), "Shouldn't have cleared bit " + i);
}
}
for (int i = 9; i < 74; i++) {
assertFalse(bs.get(i), "Failed to clear bit " + i);
}
for (int i = 74; i < initialSize; i++) {
if (i == 110) {
assertFalse(bs.get(i), "Shouldn't have flipped bit " + i);
} else {
assertTrue(bs.get(i), "Shouldn't have cleared bit " + i);
}
}
for (int i = initialSize; i < bs.size(); i++) {
assertFalse(bs.get(i), "Shouldn't have flipped bit " + i);
}
// pos1 and pos2 are in two non-sequential bitset elements
bs = newInstance(256);
bs.set(0, 256);
bs.clear(7);
bs.clear(255);
bs.clear(9, 219);
for (int i = 0; i < 9; i++) {
if (i == 7) {
assertFalse(bs.get(i), "Shouldn't have flipped bit " + i);
} else {
assertTrue(bs.get(i), "Shouldn't have cleared bit " + i);
}
}
for (int i = 9; i < 219; i++) {
assertFalse(bs.get(i), "failed to clear bit " + i);
}
for (int i = 219; i < 255; i++) {
assertTrue(bs.get(i), "Shouldn't have cleared bit " + i);
}
for (int i = 255; i < bs.size(); i++) {
assertFalse(bs.get(i), "Shouldn't have flipped bit " + i);
}
// test illegal args
bs = newInstance(10);
assertThrows(IndexOutOfBoundsException.class, () -> newInstance(10).clear(-1, 3),
"Test1: Attempt to flip with negative index failed to generate exception");
assertThrows(IndexOutOfBoundsException.class, () -> newInstance(10).clear(2, -1),
"Test2: Attempt to flip with negative index failed to generate exception");
bs.set(2, 4);
bs.clear(2, 2);
assertTrue(bs.get(2), "Bit got cleared incorrectly ");
assertThrows(IndexOutOfBoundsException.class, () -> newInstance(10).clear(4, 2),
"Test4: Attempt to flip with illegal args failed to generate exception");
bs = newInstance(0);
assertEquals(0, bs.length(), "Test1: Wrong length,");
assertEquals(0, bs.size(), "Test1: Wrong size,");
bs.clear(0, 2);
assertEquals(0, bs.length(), "Test2: Wrong length,");
assertEquals(0, bs.size(), "Test2: Wrong size,");
bs.clear(60, 64);
assertEquals(0, bs.length(), "Test3: Wrong length,");
assertEquals(0, bs.size(), "Test3: Wrong size,");
bs.clear(64, 120);
assertEquals(0, bs.length(), "Test4: Wrong length,");
assertEquals(0, bs.size(), "Test4: Wrong size,");
bs.set(25);
assertEquals(26, bs.length(), "Test5: Wrong length,");
assertEquals(64, bs.size(), "Test5: Wrong size,");
bs.clear(60, 64);
assertEquals(26, bs.length(), "Test6: Wrong length,");
assertEquals(64, bs.size(), "Test6: Wrong size,");
bs.clear(64, 120);
assertEquals(64, bs.size(), "Test7: Wrong size,");
assertEquals(26, bs.length(), "Test7: Wrong length,");
bs.clear(80);
assertEquals(64, bs.size(), "Test8: Wrong size,");
assertEquals(26, bs.length(), "Test8: Wrong length,");
bs.clear(25);
assertEquals(64, bs.size(), "Test9: Wrong size,");
assertEquals(0, bs.length(), "Test9: Wrong length,");
}
/**
* Tests {@link FluentBitSet#clear(int...)}.
*/
@Test
public void test_clearIntArray() {
// Test for method void java.util.BitSet.clear(int)
eightFbs.clear(new int[] {7});
assertFalse(eightFbs.get(7), "Failed to clear bit");
// Check to see all other bits are still set
for (int i = 0; i < 7; i++) {
assertTrue(eightFbs.get(i), "Clear cleared incorrect bits");
}
eightFbs.clear(165);
assertFalse(eightFbs.get(165), "Failed to clear bit");
// Try out of range
assertThrows(IndexOutOfBoundsException.class, () -> eightFbs.clear(-1));
final FluentBitSet bs = newInstance(0);
assertEquals(0, bs.length(), "Test1: Wrong length,");
assertEquals(0, bs.size(), "Test1: Wrong size,");
bs.clear(new int[] {0});
assertEquals(0, bs.length(), "Test2: Wrong length,");
assertEquals(0, bs.size(), "Test2: Wrong size,");
bs.clear(new int[] {60});
assertEquals(0, bs.length(), "Test3: Wrong length,");
assertEquals(0, bs.size(), "Test3: Wrong size,");
bs.clear(new int[] {120});
assertEquals(0, bs.size(), "Test4: Wrong size,");
assertEquals(0, bs.length(), "Test4: Wrong length,");
bs.set(25);
assertEquals(64, bs.size(), "Test5: Wrong size,");
assertEquals(26, bs.length(), "Test5: Wrong length,");
bs.clear(new int[] {80});
assertEquals(64, bs.size(), "Test6: Wrong size,");
assertEquals(26, bs.length(), "Test6: Wrong length,");
bs.clear(new int[] {25});
assertEquals(64, bs.size(), "Test7: Wrong size,");
assertEquals(0, bs.length(), "Test7: Wrong length,");
}
/**
* Tests FluentBitSet#clone()
*/
@Test
public void test_clone() {
final FluentBitSet bs = (FluentBitSet) eightFbs.clone();
assertEquals(bs, eightFbs, "clone failed to return equal BitSet");
}
/**
* Tests {@link FluentBitSet#FluentBitSet()}.
*/
@Test
public void test_Constructor() {
final FluentBitSet bs = newInstance();
assertEquals(64, bs.size(), "Create FluentBitSet of incorrect size");
assertEquals("{}", bs.toString(), "New FluentBitSet had invalid string representation");
}
/**
* Tests {@link FluentBitSet#FluentBitSet(int)}.
*/
@Test
public void test_ConstructorInt() {
FluentBitSet bs = newInstance(128);
assertEquals(128, bs.size(), "Create FluentBitSet of incorrect size");
assertEquals("{}", bs.toString(), "New FluentBitSet had invalid string representation: " + bs.toString());
// All BitSets are created with elements of multiples of 64
bs = newInstance(89);
assertEquals(128, bs.size(), "Failed to round FluentBitSet element size");
assertThrows(NegativeArraySizeException.class, () -> newInstance(-9));
}
/**
* Tests {@link FluentBitSet#equals(java.lang.Object)}.
*/
@Test
public void test_equals() {
FluentBitSet bs;
bs = (FluentBitSet) eightFbs.clone();
assertEquals(eightFbs, eightFbs, "Same FluentBitSet returned false");
assertEquals(bs, eightFbs, "Identical FluentBitSet returned false");
bs.clear(6);
assertFalse(eightFbs.equals(bs), "Different BitSets returned true");
assertFalse(eightFbs.equals(null), "Different BitSets returned true");
assertFalse(eightFbs.equals(new Object()), "Different BitSets returned true");
bs = (FluentBitSet) eightFbs.clone();
bs.set(128);
assertFalse(eightFbs.equals(bs), "Different sized FluentBitSet with higher bit set returned true");
bs.clear(128);
assertTrue(eightFbs.equals(bs), "Different sized FluentBitSet with higher bits not set returned false");
}
/**
* Tests {@link FluentBitSet#flip(int)}.
*/
@Test
public void test_flipI() {
// Test for method void java.util.BitSet.flip(int)
FluentBitSet bs = newInstance();
bs.clear(8);
bs.clear(9);
bs.set(10);
bs.flip(9);
assertFalse(bs.get(8), "Failed to flip bit");
assertTrue(bs.get(9), "Failed to flip bit");
assertTrue(bs.get(10), "Failed to flip bit");
bs.set(8);
bs.set(9);
bs.clear(10);
bs.flip(9);
assertTrue(bs.get(8), "Failed to flip bit");
assertFalse(bs.get(9), "Failed to flip bit");
assertFalse(bs.get(10), "Failed to flip bit");
assertThrows(IndexOutOfBoundsException.class, () -> newInstance().flip(-1), "Attempt to flip at negative index failed to generate exception");
// Try setting a bit on a 64 boundary
bs.flip(128);
assertEquals(192, bs.size(), "Failed to grow BitSet");
assertTrue(bs.get(128), "Failed to flip bit");
bs = newInstance(64);
for (int i = bs.size(); --i >= 0;) {
bs.flip(i);
assertTrue(bs.get(i), "Test1: Incorrectly flipped bit" + i);
assertEquals(i + 1, bs.length(), "Incorrect length");
for (int j = bs.size(); --j > i;) {
assertTrue(!bs.get(j), "Test2: Incorrectly flipped bit" + j);
}
for (int j = i; --j >= 0;) {
assertTrue(!bs.get(j), "Test3: Incorrectly flipped bit" + j);
}
bs.flip(i);
}
final FluentBitSet bs0 = newInstance(0);
assertEquals(0, bs0.size(), "Test1: Wrong size");
assertEquals(0, bs0.length(), "Test1: Wrong length");
bs0.flip(0);
assertEquals(bs0.size(), 64, "Test2: Wrong size");
assertEquals(1, bs0.length(), "Test2: Wrong length");
bs0.flip(63);
assertEquals(64, bs0.size(), "Test3: Wrong size");
assertEquals(64, bs0.length(), "Test3: Wrong length");
eightFbs.flip(7);
assertTrue(!eightFbs.get(7), "Failed to flip bit 7");
// Check to see all other bits are still set
for (int i = 0; i < 7; i++) {
assertTrue(eightFbs.get(i), "Flip flipped incorrect bits");
}
eightFbs.flip(127);
assertTrue(eightFbs.get(127), "Failed to flip bit 127");
eightFbs.flip(127);
assertTrue(!eightFbs.get(127), "Failed to flip bit 127");
}
/**
* Tests {@link FluentBitSet#clear(int, int)}.
*/
@Test
public void test_flipII() {
final FluentBitSet bitset = newInstance();
for (int i = 0; i < 20; i++) {
bitset.set(i);
}
bitset.flip(10, 10);
// Test for method void java.util.BitSet.flip(int, int)
// pos1 and pos2 are in the same bitset element
FluentBitSet bs = newInstance(16);
bs.set(7);
bs.set(10);
bs.flip(7, 11);
for (int i = 0; i < 7; i++) {
assertTrue(!bs.get(i), "Shouldn't have flipped bit " + i);
}
assertFalse(bs.get(7), "Failed to flip bit 7");
assertTrue(bs.get(8), "Failed to flip bit 8");
assertTrue(bs.get(9), "Failed to flip bit 9");
assertFalse(bs.get(10), "Failed to flip bit 10");
for (int i = 11; i < bs.size(); i++) {
assertTrue(!bs.get(i), "Shouldn't have flipped bit " + i);
}
// pos1 and pos2 is in the same bitset element, boundry testing
bs = newInstance(16);
bs.set(7);
bs.set(10);
bs.flip(7, 64);
assertEquals(64, bs.size(), "Failed to grow BitSet");
for (int i = 0; i < 7; i++) {
assertTrue(!bs.get(i), "Shouldn't have flipped bit " + i);
}
assertFalse(bs.get(7), "Failed to flip bit 7");
assertTrue(bs.get(8), "Failed to flip bit 8");
assertTrue(bs.get(9), "Failed to flip bit 9");
assertFalse(bs.get(10), "Failed to flip bit 10");
for (int i = 11; i < 64; i++) {
assertTrue(bs.get(i), "failed to flip bit " + i);
}
assertFalse(bs.get(64), "Shouldn't have flipped bit 64");
// more boundary testing
bs = newInstance(32);
bs.flip(0, 64);
for (int i = 0; i < 64; i++) {
assertTrue(bs.get(i), "Failed to flip bit " + i);
}
assertFalse(bs.get(64), "Shouldn't have flipped bit 64");
bs = newInstance(32);
bs.flip(0, 65);
for (int i = 0; i < 65; i++) {
assertTrue(bs.get(i), "Failed to flip bit " + i);
}
assertFalse(bs.get(65), "Shouldn't have flipped bit 65");
// pos1 and pos2 are in two sequential bitset elements
bs = newInstance(128);
bs.set(7);
bs.set(10);
bs.set(72);
bs.set(110);
bs.flip(9, 74);
for (int i = 0; i < 7; i++) {
assertFalse(bs.get(i), "Shouldn't have flipped bit " + i);
}
assertTrue(bs.get(7), "Shouldn't have flipped bit 7");
assertFalse(bs.get(8), "Shouldn't have flipped bit 8");
assertTrue(bs.get(9), "Failed to flip bit 9");
assertFalse(bs.get(10), "Failed to flip bit 10");
for (int i = 11; i < 72; i++) {
assertTrue(bs.get(i), "failed to flip bit " + i);
}
assertFalse(bs.get(72), "Failed to flip bit 72");
assertTrue(bs.get(73), "Failed to flip bit 73");
for (int i = 74; i < 110; i++) {
assertFalse(bs.get(i), "Shouldn't have flipped bit " + i);
}
assertTrue(bs.get(110), "Shouldn't have flipped bit 110");
for (int i = 111; i < bs.size(); i++) {
assertFalse(bs.get(i), "Shouldn't have flipped bit " + i);
}
// pos1 and pos2 are in two non-sequential bitset elements
bs = newInstance(256);
bs.set(7);
bs.set(10);
bs.set(72);
bs.set(110);
bs.set(181);
bs.set(220);
bs.flip(9, 219);
for (int i = 0; i < 7; i++) {
assertFalse(bs.get(i), "Shouldn't have flipped bit " + i);
}
assertTrue(bs.get(7), "Shouldn't have flipped bit 7");
assertFalse(bs.get(8), "Shouldn't have flipped bit 8");
assertTrue(bs.get(9), "Failed to flip bit 9");
assertFalse(bs.get(10), "Failed to flip bit 10");
for (int i = 11; i < 72; i++) {
assertTrue(bs.get(i), "failed to flip bit " + i);
}
assertFalse(bs.get(72), "Failed to flip bit 72");
for (int i = 73; i < 110; i++) {
assertTrue(bs.get(i), "failed to flip bit " + i);
}
assertFalse(bs.get(110), "Failed to flip bit 110");
for (int i = 111; i < 181; i++) {
assertTrue(bs.get(i), "failed to flip bit " + i);
}
assertFalse(bs.get(181), "Failed to flip bit 181");
for (int i = 182; i < 219; i++) {
assertTrue(bs.get(i), "failed to flip bit " + i);
}
assertFalse(bs.get(219), "Shouldn't have flipped bit 219");
assertTrue(bs.get(220), "Shouldn't have flipped bit 220");
for (int i = 221; i < bs.size(); i++) {
assertTrue(!bs.get(i), "Shouldn't have flipped bit " + i);
}
// test illegal args
bs = newInstance(10);
try {
bs.flip(-1, 3);
fail("Test1: Attempt to flip with negative index failed to generate exception");
} catch (final IndexOutOfBoundsException e) {
// correct behavior
}
try {
bs.flip(2, -1);
fail("Test2: Attempt to flip with negative index failed to generate exception");
} catch (final IndexOutOfBoundsException e) {
// correct behavior
}
try {
bs.flip(4, 2);
fail("Test4: Attempt to flip with illegal args failed to generate exception");
} catch (final IndexOutOfBoundsException e) {
// correct behavior
}
}
/**
* Tests {@link FluentBitSet#get(int)}.
*/
@Test
public void test_getI() {
// Test for method boolean java.util.BitSet.get(int)
FluentBitSet bs = newInstance();
bs.set(8);
assertFalse(eightFbs.get(99), "Get returned true for index out of range");
assertTrue(eightFbs.get(3), "Get returned false for set value");
assertFalse(bs.get(0), "Get returned true for a non set value");
assertThrows(IndexOutOfBoundsException.class, () -> newInstance().get(-1), "Attempt to get at negative index failed to generate exception");
bs = newInstance(1);
assertFalse(bs.get(64), "Access greater than size");
bs = newInstance();
bs.set(63);
assertTrue(bs.get(63), "Test highest bit");
bs = newInstance(0);
assertEquals(0, bs.length(), "Test1: Wrong length,");
assertEquals(0, bs.size(), "Test1: Wrong size,");
bs.get(2);
assertEquals(0, bs.length(), "Test2: Wrong length,");
assertEquals(0, bs.size(), "Test2: Wrong size,");
bs.get(70);
assertEquals(0, bs.length(), "Test3: Wrong length,");
assertEquals(0, bs.size(), "Test3: Wrong size,");
}
/**
* Tests {@link FluentBitSet#get(int, int)}.
*/
@Test
public void test_getII() {
final FluentBitSet bitset = newInstance(30);
bitset.get(3, 3);
// Test for method boolean java.util.BitSet.get(int, int)
FluentBitSet bs, resultbs, correctbs;
bs = newInstance(512);
bs.set(3, 9);
bs.set(10, 20);
bs.set(60, 75);
bs.set(121);
bs.set(130, 140);
// pos1 and pos2 are in the same bitset element, at index0
resultbs = bs.get(3, 6);
correctbs = newInstance(3);
correctbs.set(0, 3);
assertEquals(correctbs, resultbs, "Test1: Returned incorrect BitSet");
// pos1 and pos2 are in the same bitset element, at index 1
resultbs = bs.get(100, 125);
correctbs = newInstance(25);
correctbs.set(21);
assertEquals(correctbs, resultbs, "Test2: Returned incorrect BitSet");
// pos1 in bitset element at index 0, and pos2 in bitset element at
// index 1
resultbs = bs.get(15, 125);
correctbs = newInstance(25);
correctbs.set(0, 5);
correctbs.set(45, 60);
correctbs.set(121 - 15);
assertEquals(correctbs, resultbs, "Test3: Returned incorrect BitSet");
// pos1 in bitset element at index 1, and pos2 in bitset element at
// index 2
resultbs = bs.get(70, 145);
correctbs = newInstance(75);
correctbs.set(0, 5);
correctbs.set(51);
correctbs.set(60, 70);
assertEquals(correctbs, resultbs, "Test4: Returned incorrect BitSet");
// pos1 in bitset element at index 0, and pos2 in bitset element at
// index 2
resultbs = bs.get(5, 145);
correctbs = newInstance(140);
correctbs.set(0, 4);
correctbs.set(5, 15);
correctbs.set(55, 70);
correctbs.set(116);
correctbs.set(125, 135);
assertEquals(correctbs, resultbs, "Test5: Returned incorrect BitSet");
// pos1 in bitset element at index 0, and pos2 in bitset element at
// index 3
resultbs = bs.get(5, 250);
correctbs = newInstance(200);
correctbs.set(0, 4);
correctbs.set(5, 15);
correctbs.set(55, 70);
correctbs.set(116);
correctbs.set(125, 135);
assertEquals(correctbs, resultbs, "Test6: Returned incorrect BitSet");
assertEquals(bs.get(0, bs.size()), bs, "equality principle 1 ");
// more tests
FluentBitSet bs2 = newInstance(129);
bs2.set(0, 20);
bs2.set(62, 65);
bs2.set(121, 123);
resultbs = bs2.get(1, 124);
correctbs = newInstance(129);
correctbs.set(0, 19);
correctbs.set(61, 64);
correctbs.set(120, 122);
assertEquals(correctbs, resultbs, "Test7: Returned incorrect BitSet");
// equality principle with some boundary conditions
bs2 = newInstance(128);
bs2.set(2, 20);
bs2.set(62);
bs2.set(121, 123);
bs2.set(127);
resultbs = bs2.get(0, bs2.size());
assertEquals(resultbs, bs2, "equality principle 2 ");
bs2 = newInstance(128);
bs2.set(2, 20);
bs2.set(62);
bs2.set(121, 123);
bs2.set(127);
bs2.flip(0, 128);
resultbs = bs2.get(0, bs.size());
assertEquals(resultbs, bs2, "equality principle 3 ");
bs = newInstance(0);
assertEquals(0, bs.length(), "Test1: Wrong length,");
assertEquals(0, bs.size(), "Test1: Wrong size,");
bs.get(0, 2);
assertEquals(0, bs.length(), "Test2: Wrong length,");
assertEquals(0, bs.size(), "Test2: Wrong size,");
bs.get(60, 64);
assertEquals(0, bs.length(), "Test3: Wrong length,");
assertEquals(0, bs.size(), "Test3: Wrong size,");
bs.get(64, 120);
assertEquals(0, bs.length(), "Test4: Wrong length,");
assertEquals(0, bs.size(), "Test4: Wrong size,");
bs.set(25);
assertEquals(26, bs.length(), "Test5: Wrong length,");
assertEquals(64, bs.size(), "Test5: Wrong size,");
bs.get(60, 64);
assertEquals(26, bs.length(), "Test6: Wrong length,");
assertEquals(64, bs.size(), "Test6: Wrong size,");
bs.get(64, 120);
assertEquals(64, bs.size(), "Test7: Wrong size,");
assertEquals(26, bs.length(), "Test7: Wrong length,");
bs.get(80);
assertEquals(64, bs.size(), "Test8: Wrong size,");
assertEquals(26, bs.length(), "Test8: Wrong length,");
bs.get(25);
assertEquals(64, bs.size(), "Test9: Wrong size,");
assertEquals(26, bs.length(), "Test9: Wrong length,");
}
/**
* Tests {@link FluentBitSet#hashCode()}.
*/
@Test
public void test_hashCode() {
// Test for method int java.util.BitSet.hashCode()
final FluentBitSet bs = (FluentBitSet) eightFbs.clone();
bs.clear(2);
bs.clear(6);
assertEquals(bs.bitSet().hashCode(), bs.hashCode(), "BitSet returns wrong hash value");
bs.set(10);
bs.clear(3);
assertEquals(97, bs.hashCode(), "BitSet returns wrong hash value");
}
/**
* Tests {@link FluentBitSet#intersects(FluentBitSet)}.
*/
@Test
public void test_intersects() {
// Test for method boolean java.util.BitSet.intersects(BitSet)
final FluentBitSet bs = newInstance(500);
bs.set(5);
bs.set(63);
bs.set(64);
bs.set(71, 110);
bs.set(127, 130);
bs.set(192);
bs.set(450);
final FluentBitSet bs2 = newInstance(8);
assertFalse(bs.intersects(bs2), "Test1: intersects() returned incorrect value");
assertFalse(bs2.intersects(bs), "Test1: intersects() returned incorrect value");
bs2.set(4);
assertFalse(bs.intersects(bs2), "Test2: intersects() returned incorrect value");
assertFalse(bs2.intersects(bs), "Test2: intersects() returned incorrect value");
bs2.clear();
bs2.set(5);
assertTrue(bs.intersects(bs2), "Test3: intersects() returned incorrect value");
assertTrue(bs2.intersects(bs), "Test3: intersects() returned incorrect value");
bs2.clear();
bs2.set(63);
assertTrue(bs.intersects(bs2), "Test4: intersects() returned incorrect value");
assertTrue(bs2.intersects(bs), "Test4: intersects() returned incorrect value");
bs2.clear();
bs2.set(80);
assertTrue(bs.intersects(bs2), "Test5: intersects() returned incorrect value");
assertTrue(bs2.intersects(bs), "Test5: intersects() returned incorrect value");
bs2.clear();
bs2.set(127);
assertTrue(bs.intersects(bs2), "Test6: intersects() returned incorrect value");
assertTrue(bs2.intersects(bs), "Test6: intersects() returned incorrect value");
bs2.clear();
bs2.set(192);
assertTrue(bs.intersects(bs2), "Test7: intersects() returned incorrect value");
assertTrue(bs2.intersects(bs), "Test7: intersects() returned incorrect value");
bs2.clear();
bs2.set(450);
assertTrue(bs.intersects(bs2), "Test8: intersects() returned incorrect value");
assertTrue(bs2.intersects(bs), "Test8: intersects() returned incorrect value");
bs2.clear();
bs2.set(500);
assertFalse(bs.intersects(bs2), "Test9: intersects() returned incorrect value");
assertFalse(bs2.intersects(bs), "Test9: intersects() returned incorrect value");
}
/**
* Tests {@link FluentBitSet#intersects(BitSet)}.
*/
@Test
public void test_intersects_BitSet() {
// Test for method boolean java.util.BitSet.intersects(BitSet)
final FluentBitSet bs = newInstance(500);
bs.set(5);
bs.set(63);
bs.set(64);
bs.set(71, 110);
bs.set(127, 130);
bs.set(192);
bs.set(450);
final FluentBitSet bs2 = newInstance(8);
assertFalse(bs.intersects(bs2.bitSet()), "Test1: intersects() returned incorrect value");
assertFalse(bs2.intersects(bs.bitSet()), "Test1: intersects() returned incorrect value");
bs2.set(4);
assertFalse(bs.intersects(bs2.bitSet()), "Test2: intersects() returned incorrect value");
assertFalse(bs2.intersects(bs.bitSet()), "Test2: intersects() returned incorrect value");
bs2.clear();
bs2.set(5);
assertTrue(bs.intersects(bs2.bitSet()), "Test3: intersects() returned incorrect value");
assertTrue(bs2.intersects(bs.bitSet()), "Test3: intersects() returned incorrect value");
bs2.clear();
bs2.set(63);
assertTrue(bs.intersects(bs2.bitSet()), "Test4: intersects() returned incorrect value");
assertTrue(bs2.intersects(bs.bitSet()), "Test4: intersects() returned incorrect value");
bs2.clear();
bs2.set(80);
assertTrue(bs.intersects(bs2.bitSet()), "Test5: intersects() returned incorrect value");
assertTrue(bs2.intersects(bs.bitSet()), "Test5: intersects() returned incorrect value");
bs2.clear();
bs2.set(127);
assertTrue(bs.intersects(bs2.bitSet()), "Test6: intersects() returned incorrect value");
assertTrue(bs2.intersects(bs.bitSet()), "Test6: intersects() returned incorrect value");
bs2.clear();
bs2.set(192);
assertTrue(bs.intersects(bs2.bitSet()), "Test7: intersects() returned incorrect value");
assertTrue(bs2.intersects(bs.bitSet()), "Test7: intersects() returned incorrect value");
bs2.clear();
bs2.set(450);
assertTrue(bs.intersects(bs2.bitSet()), "Test8: intersects() returned incorrect value");
assertTrue(bs2.intersects(bs.bitSet()), "Test8: intersects() returned incorrect value");
bs2.clear();
bs2.set(500);
assertFalse(bs.intersects(bs2.bitSet()), "Test9: intersects() returned incorrect value");
assertFalse(bs2.intersects(bs.bitSet()), "Test9: intersects() returned incorrect value");
}
/**
* Tests {@link FluentBitSet#isEmpty()}.
*/
@Test
public void test_isEmpty() {
final FluentBitSet bs = newInstance(500);
assertTrue(bs.isEmpty(), "Test: isEmpty() returned wrong value");
// at bitset element 0
bs.set(3);
assertFalse(bs.isEmpty(), "Test0: isEmpty() returned wrong value");
// at bitset element 1
bs.clear();
bs.set(12);
assertFalse(bs.isEmpty(), "Test1: isEmpty() returned wrong value");
// at bitset element 2
bs.clear();
bs.set(128);
assertFalse(bs.isEmpty(), "Test2: isEmpty() returned wrong value");
// boundary testing
bs.clear();
bs.set(459);
assertFalse(bs.isEmpty(), "Test3: isEmpty() returned wrong value");
bs.clear();
bs.set(511);
assertFalse(bs.isEmpty(), "Test4: isEmpty() returned wrong value");
}
/**
* Tests {@link FluentBitSet#length()}.
*/
@Test
public void test_length() {
final FluentBitSet bs = newInstance();
assertEquals(0, bs.length(), "BitSet returned wrong length");
bs.set(5);
assertEquals(6, bs.length(), "BitSet returned wrong length");
bs.set(10);
assertEquals(11, bs.length(), "BitSet returned wrong length");
bs.set(432);
assertEquals(433, bs.length(), "BitSet returned wrong length");
bs.set(300);
assertEquals(433, bs.length(), "BitSet returned wrong length");
}
/**
* Tests {@link FluentBitSet#nextClearBit(int)}.
*/
@Test
public void test_nextClearBitI() {
// Test for method int java.util.BitSet.nextSetBit()
final FluentBitSet bs = newInstance(500);
bs.set(0, bs.size() - 1); // ensure all the bits from 0 to bs.size()
// -1
bs.set(bs.size() - 1); // are set to true
bs.clear(5);
bs.clear(32);
bs.clear(63);
bs.clear(64);
bs.clear(71, 110);
bs.clear(127, 130);
bs.clear(193);
bs.clear(450);
try {
bs.nextClearBit(-1);
fail("Expected IndexOutOfBoundsException for negative index");
} catch (final IndexOutOfBoundsException e) {
// correct behavior
}
assertEquals(5, bs.nextClearBit(0), "nextClearBit() returned the wrong value");
assertEquals(5, bs.nextClearBit(5), "nextClearBit() returned the wrong value");
assertEquals(32, bs.nextClearBit(6), "nextClearBit() returned the wrong value");
assertEquals(32, bs.nextClearBit(32), "nextClearBit() returned the wrong value");
assertEquals(63, bs.nextClearBit(33), "nextClearBit() returned the wrong value");
// boundary tests
assertEquals(63, bs.nextClearBit(63), "nextClearBit() returned the wrong value");
assertEquals(64, bs.nextClearBit(64), "nextClearBit() returned the wrong value");
// at bitset element 1
assertEquals(71, bs.nextClearBit(65), "nextClearBit() returned the wrong value");
assertEquals(71, bs.nextClearBit(71), "nextClearBit() returned the wrong value");
assertEquals(72, bs.nextClearBit(72), "nextClearBit() returned the wrong value");
assertEquals(127, bs.nextClearBit(110), "nextClearBit() returned the wrong value");
// boundary tests
assertEquals(127, bs.nextClearBit(127), "nextClearBit() returned the wrong value");
assertEquals(128, bs.nextClearBit(128), "nextClearBit() returned the wrong value");
// at bitset element 2
assertEquals(193, bs.nextClearBit(130), "nextClearBit() returned the wrong value");
assertEquals(193, bs.nextClearBit(191), "nextClearBit() returned the wrong value");
assertEquals(193, bs.nextClearBit(192), "nextClearBit() returned the wrong value");
assertEquals(193, bs.nextClearBit(193), "nextClearBit() returned the wrong value");
assertEquals(450, bs.nextClearBit(194), "nextClearBit() returned the wrong value");
assertEquals(450, bs.nextClearBit(255), "nextClearBit() returned the wrong value");
assertEquals(450, bs.nextClearBit(256), "nextClearBit() returned the wrong value");
assertEquals(450, bs.nextClearBit(450), "nextClearBit() returned the wrong value");
// bitset has 1 still the end of bs.size() -1, but calling nextClearBit
// with any index value
// after the last true bit should return bs.size(),
assertEquals(512, bs.nextClearBit(451), "nextClearBit() returned the wrong value");
assertEquals(512, bs.nextClearBit(511), "nextClearBit() returned the wrong value");
assertEquals(512, bs.nextClearBit(512), "nextClearBit() returned the wrong value");
// if the index is larger than bs.size(), nextClearBit should return
// index;
assertEquals(513, bs.nextClearBit(513), "nextClearBit() returned the wrong value");
assertEquals(800, bs.nextClearBit(800), "nextClearBit() returned the wrong value");
}
/**
* Tests {@link FluentBitSet#nextSetBit(int)}.
*/
@Test
public void test_nextSetBitI() {
// Test for method int java.util.BitSet.nextSetBit()
final FluentBitSet bs = newInstance(500);
bs.set(5);
bs.set(32);
bs.set(63);
bs.set(64);
bs.set(71, 110);
bs.set(127, 130);
bs.set(193);
bs.set(450);
try {
bs.nextSetBit(-1);
fail("Expected IndexOutOfBoundsException for negative index");
} catch (final IndexOutOfBoundsException e) {
// correct behavior
}
assertEquals(5, bs.nextSetBit(0), "nextSetBit() returned the wrong value");
assertEquals(5, bs.nextSetBit(5), "nextSetBit() returned the wrong value");
assertEquals(32, bs.nextSetBit(6), "nextSetBit() returned the wrong value");
assertEquals(32, bs.nextSetBit(32), "nextSetBit() returned the wrong value");
assertEquals(63, bs.nextSetBit(33), "nextSetBit() returned the wrong value");
// boundary tests
assertEquals(63, bs.nextSetBit(63), "nextSetBit() returned the wrong value");
assertEquals(64, bs.nextSetBit(64), "nextSetBit() returned the wrong value");
// at bitset element 1
assertEquals(71, bs.nextSetBit(65), "nextSetBit() returned the wrong value");
assertEquals(71, bs.nextSetBit(71), "nextSetBit() returned the wrong value");
assertEquals(72, bs.nextSetBit(72), "nextSetBit() returned the wrong value");
assertEquals(127, bs.nextSetBit(110), "nextSetBit() returned the wrong value");
// boundary tests
assertEquals(127, bs.nextSetBit(127), "nextSetBit() returned the wrong value");
assertEquals(128, bs.nextSetBit(128), "nextSetBit() returned the wrong value");
// at bitset element 2
assertEquals(193, bs.nextSetBit(130), "nextSetBit() returned the wrong value");
assertEquals(193, bs.nextSetBit(191), "nextSetBit() returned the wrong value");
assertEquals(193, bs.nextSetBit(192), "nextSetBit() returned the wrong value");
assertEquals(193, bs.nextSetBit(193), "nextSetBit() returned the wrong value");
assertEquals(450, bs.nextSetBit(194), "nextSetBit() returned the wrong value");
assertEquals(450, bs.nextSetBit(255), "nextSetBit() returned the wrong value");
assertEquals(450, bs.nextSetBit(256), "nextSetBit() returned the wrong value");
assertEquals(450, bs.nextSetBit(450), "nextSetBit() returned the wrong value");
assertEquals(-1, bs.nextSetBit(451), "nextSetBit() returned the wrong value");
assertEquals(-1, bs.nextSetBit(511), "nextSetBit() returned the wrong value");
assertEquals(-1, bs.nextSetBit(512), "nextSetBit() returned the wrong value");
assertEquals(-1, bs.nextSetBit(800), "nextSetBit() returned the wrong value");
}
/**
* Tests {@link FluentBitSet#or(FluentBitSet)}.
*/
@Test
public void test_or() {
// Test for method void java.util.BitSet.or(BitSet)
FluentBitSet bs = newInstance(128);
bs.or(eightFbs);
for (int i = 0; i < 8; i++) {
assertTrue(bs.get(i), "OR failed to set bits");
}
bs = newInstance(0);
bs.or(eightFbs);
for (int i = 0; i < 8; i++) {
assertTrue(bs.get(i), "OR(0) failed to set bits");
}
eightFbs.clear(5);
bs = newInstance(128);
bs.or(eightFbs);
assertFalse(bs.get(5), "OR set a bit which should be off");
}
/**
* Tests {@link FluentBitSet#or(BitSet)}.
*/
@Test
public void test_or_BitSet() {
// Test for method void java.util.BitSet.or(BitSet)
FluentBitSet bs = newInstance(128);
bs.or(eightFbs.bitSet());
for (int i = 0; i < 8; i++) {
assertTrue(bs.get(i), "OR failed to set bits");
}
bs = newInstance(0);
bs.or(eightFbs.bitSet());
for (int i = 0; i < 8; i++) {
assertTrue(bs.get(i), "OR(0) failed to set bits");
}
eightFbs.clear(5);
bs = newInstance(128);
bs.or(eightFbs.bitSet());
assertFalse(bs.get(5), "OR set a bit which should be off");
}
/**
* Tests {@link FluentBitSet#or(FluentBitSet)}.
*/
@Test
public void test_or_FluentBitSetArray() {
// Test for method void java.util.BitSet.or(BitSet)
FluentBitSet bs = newInstance(128);
bs.or(new FluentBitSet[] {eightFbs});
for (int i = 0; i < 8; i++) {
assertTrue(bs.get(i), "OR failed to set bits");
}
bs = newInstance(0);
bs.or(new FluentBitSet[] {eightFbs});
for (int i = 0; i < 8; i++) {
assertTrue(bs.get(i), "OR(0) failed to set bits");
}
eightFbs.clear(5);
bs = newInstance(128);
bs.or(new FluentBitSet[] {eightFbs});
assertFalse(bs.get(5), "OR set a bit which should be off");
}
/**
* Tests {@link FluentBitSet#previousClearBit(int)}.
*/
@Test
public void test_previousClearBit() {
final FluentBitSet bs = newInstance();
assertEquals(1, bs.previousClearBit(1), "previousClearBit");
}
/**
* Tests {@link FluentBitSet#previousSetBit(int)}.
*/
@Test
public void test_previousSetBit() {
final FluentBitSet bs = newInstance();
assertEquals(-1, bs.previousSetBit(1), "previousSetBit");
}
/**
* Tests {@link FluentBitSet#set(int, int)}.
*/
@Test
public void test_setII() {
final FluentBitSet bitset = newInstance(30);
bitset.set(29, 29);
// Test for method void java.util.BitSet.set(int, int)
// pos1 and pos2 are in the same bitset element
FluentBitSet bs = newInstance(16);
bs.set(5);
bs.set(15);
bs.set(7, 11);
for (int i = 0; i < 7; i++) {
if (i == 5) {
assertTrue(bs.get(i), "Shouldn't have flipped bit " + i);
} else {
assertFalse(bs.get(i), "Shouldn't have set bit " + i);
}
}
for (int i = 7; i < 11; i++) {
assertTrue(bs.get(i), "Failed to set bit " + i);
}
for (int i = 11; i < bs.size(); i++) {
if (i == 15) {
assertTrue(bs.get(i), "Shouldn't have flipped bit " + i);
} else {
assertFalse(bs.get(i), "Shouldn't have set bit " + i);
}
}
// pos1 and pos2 is in the same bitset element, boundry testing
bs = newInstance(16);
bs.set(7, 64);
assertEquals(64, bs.size(), "Failed to grow BitSet");
for (int i = 0; i < 7; i++) {
assertFalse(bs.get(i), "Shouldn't have set bit " + i);
}
for (int i = 7; i < 64; i++) {
assertTrue(bs.get(i), "Failed to set bit " + i);
}
assertFalse(bs.get(64), "Shouldn't have set bit 64");
// more boundary testing
bs = newInstance(32);
bs.set(0, 64);
for (int i = 0; i < 64; i++) {
assertTrue(bs.get(i), "Failed to set bit " + i);
}
assertFalse(bs.get(64), "Shouldn't have set bit 64");
bs = newInstance(32);
bs.set(0, 65);
for (int i = 0; i < 65; i++) {
assertTrue(bs.get(i), "Failed to set bit " + i);
}
assertFalse(bs.get(65), "Shouldn't have set bit 65");
// pos1 and pos2 are in two sequential bitset elements
bs = newInstance(128);
bs.set(7);
bs.set(110);
bs.set(9, 74);
for (int i = 0; i < 9; i++) {
if (i == 7) {
assertTrue(bs.get(i), "Shouldn't have flipped bit " + i);
} else {
assertFalse(bs.get(i), "Shouldn't have set bit " + i);
}
}
for (int i = 9; i < 74; i++) {
assertTrue(bs.get(i), "Failed to set bit " + i);
}
for (int i = 74; i < bs.size(); i++) {
if (i == 110) {
assertTrue(bs.get(i), "Shouldn't have flipped bit " + i);
} else {
assertFalse(bs.get(i), "Shouldn't have set bit " + i);
}
}
// pos1 and pos2 are in two non-sequential bitset elements
bs = newInstance(256);
bs.set(7);
bs.set(255);
bs.set(9, 219);
for (int i = 0; i < 9; i++) {
if (i == 7) {
assertTrue(bs.get(i), "Shouldn't have set flipped " + i);
} else {
assertFalse(bs.get(i), "Shouldn't have set bit " + i);
}
}
for (int i = 9; i < 219; i++) {
assertTrue(bs.get(i), "failed to set bit " + i);
}
for (int i = 219; i < 255; i++) {
assertFalse(bs.get(i), "Shouldn't have set bit " + i);
}
assertTrue(bs.get(255), "Shouldn't have flipped bit 255");
// test illegal args
bs = newInstance(10);
try {
bs.set(-1, 3);
fail("Test1: Attempt to flip with negative index failed to generate exception");
} catch (final IndexOutOfBoundsException e) {
// Correct behavior
}
try {
bs.set(2, -1);
fail("Test2: Attempt to flip with negative index failed to generate exception");
} catch (final IndexOutOfBoundsException e) {
// Correct behavior
}
bs.set(2, 2);
assertFalse(bs.get(2), "Bit got set incorrectly ");
try {
bs.set(4, 2);
fail("Test4: Attempt to flip with illegal args failed to generate exception");
} catch (final IndexOutOfBoundsException e) {
// Correct behavior
}
}
/**
* Tests {@link FluentBitSet#set(int, int, boolean)}.
*/
@Test
public void test_setIIZ() {
// Test for method void java.util.BitSet.set(int, int, boolean)
eightFbs.set(3, 6, false);
assertTrue(!eightFbs.get(3) && !eightFbs.get(4) && !eightFbs.get(5), "Should have set bits 3, 4, and 5 to false");
eightFbs.set(3, 6, true);
assertTrue(eightFbs.get(3) && eightFbs.get(4) && eightFbs.get(5), "Should have set bits 3, 4, and 5 to true");
}
/**
* Tests {@link FluentBitSet#setInclusive(int, int)}.
*/
@Test
public void test_setInclusive() {
final FluentBitSet bitset = newInstance(30);
bitset.set(29, 29);
// Test for method void java.util.BitSet.set(int, int)
// pos1 and pos2 are in the same bitset element
FluentBitSet bs = newInstance(16);
bs.set(5);
bs.set(15);
bs.setInclusive(7, 11);
for (int i = 0; i < 7; i++) {
if (i == 5) {
assertTrue(bs.get(i), "Shouldn't have flipped bit " + i);
} else {
assertFalse(bs.get(i), "Shouldn't have set bit " + i);
}
}
for (int i = 7; i < 12; i++) {
assertTrue(bs.get(i), "Failed to set bit " + i);
}
for (int i = 12; i < bs.size(); i++) {
if (i == 15) {
assertTrue(bs.get(i), "Shouldn't have flipped bit " + i);
} else {
assertFalse(bs.get(i), "Shouldn't have set bit " + i);
}
}
// pos1 and pos2 is in the same bitset element, boundry testing
bs = newInstance(16);
bs.setInclusive(7, 64);
assertEquals(128, bs.size(), "Failed to grow BitSet");
for (int i = 0; i < 7; i++) {
assertFalse(bs.get(i), "Shouldn't have set bit " + i);
}
for (int i = 7; i < 65; i++) {
assertTrue(bs.get(i), "Failed to set bit " + i);
}
assertFalse(bs.get(65), "Shouldn't have set bit 64");
// more boundary testing
bs = newInstance(32);
bs.setInclusive(0, 64);
for (int i = 0; i < 65; i++) {
assertTrue(bs.get(i), "Failed to set bit " + i);
}
assertFalse(bs.get(65), "Shouldn't have set bit 64");
bs = newInstance(32);
bs.setInclusive(0, 65);
for (int i = 0; i < 66; i++) {
assertTrue(bs.get(i), "Failed to set bit " + i);
}
assertFalse(bs.get(66), "Shouldn't have set bit 65");
// pos1 and pos2 are in two sequential bitset elements
bs = newInstance(128);
bs.set(7);
bs.set(110);
bs.setInclusive(9, 74);
for (int i = 0; i < 9; i++) {
if (i == 7) {
assertTrue(bs.get(i), "Shouldn't have flipped bit " + i);
} else {
assertFalse(bs.get(i), "Shouldn't have set bit " + i);
}
}
for (int i = 9; i < 75; i++) {
assertTrue(bs.get(i), "Failed to set bit " + i);
}
for (int i = 75; i < bs.size(); i++) {
if (i == 110) {
assertTrue(bs.get(i), "Shouldn't have flipped bit " + i);
} else {
assertFalse(bs.get(i), "Shouldn't have set bit " + i);
}
}
// pos1 and pos2 are in two non-sequential bitset elements
bs = newInstance(256);
bs.set(7);
bs.set(255);
bs.setInclusive(9, 219);
for (int i = 0; i < 9; i++) {
if (i == 7) {
assertTrue(bs.get(i), "Shouldn't have set flipped " + i);
} else {
assertFalse(bs.get(i), "Shouldn't have set bit " + i);
}
}
for (int i = 9; i < 220; i++) {
assertTrue(bs.get(i), "failed to set bit " + i);
}
for (int i = 220; i < 255; i++) {
assertFalse(bs.get(i), "Shouldn't have set bit " + i);
}
assertTrue(bs.get(255), "Shouldn't have flipped bit 255");
// test illegal args
bs = newInstance(10);
try {
bs.setInclusive(-1, 3);
fail("Test1: Attempt to flip with negative index failed to generate exception");
} catch (final IndexOutOfBoundsException e) {
// Correct behavior
}
try {
bs.setInclusive(2, -1);
fail("Test2: Attempt to flip with negative index failed to generate exception");
} catch (final IndexOutOfBoundsException e) {
// Correct behavior
}
bs.setInclusive(2, 2);
assertFalse(bs.get(3), "Bit got set incorrectly ");
try {
bs.setInclusive(4, 2);
fail("Test4: Attempt to flip with illegal args failed to generate exception");
} catch (final IndexOutOfBoundsException e) {
// Correct behavior
}
}
/**
* Tests {@link FluentBitSet#set(int)}.
*/
@Test
public void test_setInt() {
// Test for method void java.util.BitSet.set(int)
FluentBitSet bs = newInstance();
bs.set(8);
assertTrue(bs.get(8), "Failed to set bit");
try {
bs.set(-1);
fail("Attempt to set at negative index failed to generate exception");
} catch (final IndexOutOfBoundsException e) {
// Correct behavior
}
// Try setting a bit on a 64 boundary
bs.set(128);
assertEquals(192, bs.size(), "Failed to grow BitSet");
assertTrue(bs.get(128), "Failed to set bit");
bs = newInstance(64);
for (int i = bs.size(); --i >= 0;) {
bs.set(i);
assertTrue(bs.get(i), "Incorrectly set");
assertEquals(i + 1, bs.length(), "Incorrect length");
for (int j = bs.size(); --j > i;) {
assertFalse(bs.get(j), "Incorrectly set bit " + j);
}
for (int j = i; --j >= 0;) {
assertFalse(bs.get(j), "Incorrectly set bit " + j);
}
bs.clear(i);
}
bs = newInstance(0);
assertEquals(0, bs.length(), "Test1: Wrong length");
bs.set(0);
assertEquals(1, bs.length(), "Test2: Wrong length");
}
/**
* Tests {@link FluentBitSet#set(int...)}.
*/
@Test
public void test_setIntArray() {
// Test for method void java.util.BitSet.set(int)
FluentBitSet bs = newInstance();
bs.set(new int[] {8});
assertTrue(bs.get(8), "Failed to set bit");
try {
bs.set(new int[] {-1});
fail("Attempt to set at negative index failed to generate exception");
} catch (final IndexOutOfBoundsException e) {
// Correct behavior
}
// Try setting a bit on a 64 boundary
bs.set(new int[] {128});
assertEquals(192, bs.size(), "Failed to grow BitSet");
assertTrue(bs.get(128), "Failed to set bit");
bs = newInstance(64);
for (int i = bs.size(); --i >= 0;) {
bs.set(new int[] {i});
assertTrue(bs.get(i), "Incorrectly set");
assertEquals(i + 1, bs.length(), "Incorrect length");
for (int j = bs.size(); --j > i;) {
assertFalse(bs.get(j), "Incorrectly set bit " + j);
}
for (int j = i; --j >= 0;) {
assertFalse(bs.get(j), "Incorrectly set bit " + j);
}
bs.clear(i);
}
bs = newInstance(0);
assertEquals(0, bs.length(), "Test1: Wrong length");
bs.set(new int[] {0});
assertEquals(1, bs.length(), "Test2: Wrong length");
}
/**
* Tests {@link FluentBitSet#set(int, boolean)}.
*/
@Test
public void test_setIZ() {
// Test for method void java.util.BitSet.set(int, boolean)
eightFbs.set(5, false);
assertFalse(eightFbs.get(5), "Should have set bit 5 to true");
eightFbs.set(5, true);
assertTrue(eightFbs.get(5), "Should have set bit 5 to false");
}
/**
* Tests {@link FluentBitSet#setInclusive(int, int)}.
*/
@Test
public void test_setRangeInclusive() {
// Test for method int java.util.BitSet.size()
assertEquals(64, eightFbs.size(), "Returned incorrect size");
eightFbs.set(129);
assertTrue(eightFbs.size() >= 129, "Returned incorrect size");
}
/**
* Tests {@link FluentBitSet#size()}.
*/
@Test
public void test_size() {
// Test for method int java.util.BitSet.size()
assertEquals(64, eightFbs.size(), "Returned incorrect size");
eightFbs.set(129);
assertTrue(eightFbs.size() >= 129, "Returned incorrect size");
}
/**
* Tests {@link FluentBitSet#previousSetBit(int)}.
*/
@Test
public void test_stream() {
final FluentBitSet bs = newInstance();
assertEquals(0, bs.stream().count(), "stream");
}
/**
* Tests {@link FluentBitSet#previousSetBit(int)}.
*/
@Test
public void test_toByteArray() {
final FluentBitSet bs = newInstance();
assertArrayEquals(ArrayUtils.EMPTY_BYTE_ARRAY, bs.toByteArray(), "stream");
}
/**
* Tests {@link FluentBitSet#previousSetBit(int)}.
*/
@Test
public void test_toLongArray() {
final FluentBitSet bs = newInstance();
assertArrayEquals(ArrayUtils.EMPTY_LONG_ARRAY, bs.toLongArray(), "stream");
}
/**
* Tests {@link FluentBitSet#toString()}.
*/
@Test
public void test_toString() {
// Test for method java.lang.String java.util.BitSet.toString()
assertEquals("{0, 1, 2, 3, 4, 5, 6, 7}", eightFbs.toString(), "Returned incorrect string representation");
eightFbs.clear(2);
assertEquals("{0, 1, 3, 4, 5, 6, 7}", eightFbs.toString(), "Returned incorrect string representation");
}
/**
* Tests {@link FluentBitSet#xor(FluentBitSet)}.
*/
@Test
public void test_xor() {
// Test for method void java.util.BitSet.xor(BitSet)
FluentBitSet bs = (FluentBitSet) eightFbs.clone();
bs.xor(eightFbs);
for (int i = 0; i < 8; i++) {
assertFalse(bs.get(i), "XOR failed to clear bits");
}
bs.xor(eightFbs);
for (int i = 0; i < 8; i++) {
assertTrue(bs.get(i), "XOR failed to set bits");
}
bs = newInstance(0);
bs.xor(eightFbs);
for (int i = 0; i < 8; i++) {
assertTrue(bs.get(i), "XOR(0) failed to set bits");
}
bs = newInstance();
bs.set(63);
assertEquals("{63}", bs.toString(), "Test highest bit");
}
/**
* Tests {@link FluentBitSet#xor(BitSet)}.
*/
@Test
public void test_xor_BitSet() {
// Test for method void java.util.BitSet.xor(BitSet)
FluentBitSet bs = (FluentBitSet) eightFbs.clone();
bs.xor(eightFbs.bitSet());
for (int i = 0; i < 8; i++) {
assertFalse(bs.get(i), "XOR failed to clear bits");
}
bs.xor(eightFbs.bitSet());
for (int i = 0; i < 8; i++) {
assertTrue(bs.get(i), "XOR failed to set bits");
}
bs = newInstance(0);
bs.xor(eightFbs.bitSet());
for (int i = 0; i < 8; i++) {
assertTrue(bs.get(i), "XOR(0) failed to set bits");
}
bs = newInstance();
bs.set(63);
assertEquals("{63}", bs.toString(), "Test highest bit");
}
}