@Test
public void testMergeLarge() {
long[] src1 = new long[100000];
long[] dst1 = new long[100000];
for (int j = 0; j < src1.length; j++) {
src1[j] = (j / 4) * 9999;
dst1[j] = src1[j] + 1;
}
byte[] values1 = new byte[4 * src1.length];
int checksum = 0;
for (int i = 0; i < src1.length; i++) {
byte[] tmp = new byte[4];
intc.setValue(tmp, (int) dst1[i]);
System.arraycopy(tmp, 0, values1, i * 4, 4);
checksum += src1[i];
}
/* Array 2 */
long[] src2 = new long[153003];
long[] dst2 = new long[153003];
for (int j = 0; j < src2.length; j++) {
src2[j] = (j / 7) * 9999;
dst2[j] = src2[j] + 1;
}
byte[] values2 = new byte[4 * src2.length];
for (int i = 0; i < src2.length; i++) {
byte[] tmp = new byte[4];
intc.setValue(tmp, (int) dst2[i]);
System.arraycopy(tmp, 0, values2, i * 4, 4);
checksum += src2[i];
}
/* Results */
long[] ressrc = new long[src1.length + src2.length];
long[] resdst = new long[src1.length + src2.length];
byte[] resvals = new byte[values1.length + values2.length];
Sorting.mergeWithValues(src1, dst1, values1, src2, dst2, values2, ressrc, resdst, resvals, 4);
for (int j = 1; j < ressrc.length; j++) {
assertTrue(
(ressrc[j] >= ressrc[j - 1]
|| (ressrc[j - 1] == ressrc[j] && resdst[j] > resdst[j - 1])));
if (ressrc[j] == ressrc[j - 1] && resdst[j] < resdst[j - 1]) {
System.out.println("Mismatch: " + j);
System.out.println(ressrc[j]);
System.out.println(resdst[j - 1]);
System.out.println(resdst[j]);
assertTrue(resdst[j] > resdst[j - 1]);
}
byte[] tmp = new byte[4];
System.arraycopy(resvals, j * 4, tmp, 0, 4);
int x = intc.getValue(tmp);
assertEquals(resdst[j], (long) x);
}
// Merge other direction
Sorting.mergeWithValues(src2, dst2, values2, src1, dst1, values1, ressrc, resdst, resvals, 4);
for (int j = 1; j < ressrc.length; j++) {
assertTrue(
(ressrc[j] >= ressrc[j - 1]
|| (ressrc[j - 1] == ressrc[j] && resdst[j] > resdst[j - 1])));
if (ressrc[j] == ressrc[j - 1] && resdst[j] < resdst[j - 1]) {
System.out.println("Mismatch: " + j);
System.out.println(ressrc[j]);
System.out.println(resdst[j - 1]);
System.out.println(resdst[j]);
assertTrue(resdst[j] > resdst[j - 1]);
}
byte[] tmp = new byte[4];
System.arraycopy(resvals, j * 4, tmp, 0, 4);
int x = intc.getValue(tmp);
assertEquals(resdst[j], (long) x);
}
}
@Test
public void testMerge2WithValues() {
/* Array 1 */
long[] src1 = new long[] {1, 2, 4, 5, 5, 5, 10};
long[] dst1 = new long[] {1001, 1002, 1004, 5, 4005, 5005, 1010};
byte[] values1 = new byte[4 * src1.length];
int checksum = 0;
for (int i = 0; i < src1.length; i++) {
byte[] tmp = new byte[4];
intc.setValue(tmp, (int) dst1[i]);
System.arraycopy(tmp, 0, values1, i * 4, 4);
checksum += src1[i];
}
/* Array 2 */
long[] src2 = new long[] {2, 3, 5, 8, 9, 11, 20};
long[] dst2 = new long[] {2002, 2003, 2005, 2008, 2009, 2011, 2020};
byte[] values2 = new byte[4 * src2.length];
for (int i = 0; i < src2.length; i++) {
byte[] tmp = new byte[4];
intc.setValue(tmp, (int) dst2[i]);
System.arraycopy(tmp, 0, values2, i * 4, 4);
checksum += src2[i];
}
/* Results */
long[] ressrc = new long[src1.length + src2.length];
long[] resdst = new long[src1.length + src2.length];
byte[] resvals = new byte[values1.length + values2.length];
Sorting.mergeWithValues(src1, dst1, values1, src2, dst2, values2, ressrc, resdst, resvals, 4);
for (int j = 1; j < ressrc.length; j++) {
assertTrue(ressrc[j] >= ressrc[j - 1]);
assertTrue(resdst[j] % 1000 == ressrc[j]);
if (ressrc[j] == ressrc[j - 1]) assertTrue(resdst[j] > resdst[j - 1]);
byte[] tmp = new byte[4];
System.arraycopy(resvals, j * 4, tmp, 0, 4);
int x = intc.getValue(tmp);
assertEquals(resdst[j], (long) x);
}
// Merge other direction
Sorting.mergeWithValues(src2, dst2, values2, src1, dst1, values1, ressrc, resdst, resvals, 4);
for (int j = 1; j < ressrc.length; j++) {
assertTrue(ressrc[j] >= ressrc[j - 1]);
assertTrue(resdst[j] % 1000 == ressrc[j]);
if (ressrc[j] == ressrc[j - 1]) assertTrue(resdst[j] > resdst[j - 1]);
byte[] tmp = new byte[4];
System.arraycopy(resvals, j * 4, tmp, 0, 4);
int x = intc.getValue(tmp);
assertEquals(resdst[j], (long) x);
}
/* Check that all values in */
int sum = 0;
for (int i = 0; i < ressrc.length; i++) sum += ressrc[i];
assertEquals(checksum, sum);
}
