package net.varkhan.base.containers.array;
import junit.framework.TestCase;
import net.varkhan.base.containers.type.LongContainer;
import net.varkhan.base.containers.type.LongIterable;
import java.util.Random;
/**
* <b></b>.
* <p/>
*
* @author varkhan
* @date 3/24/12
* @time 9:39 PM
*/
public class LongArraysTest extends TestCase {
public static void assertArrayEquals(String message, long[] expected, long[] actual) {
if(expected==null) { if(actual==null) return; }
else if(expected.length==actual.length) {
boolean same = true;
for(int i=0; i<expected.length; i++) if(expected[i]!=actual[i]) { same=false; break; }
if(same) return;
}
fail(message+";\n expected: ["+LongArrays.join(",", expected)+"];\n actual: ["+LongArrays.join(",", actual)+"]");
}
public static long[] reverse(long[] a) {
for(int i1=0, i2=a.length-1; i1<i2; i1++, i2--) {
long t = a[i2];
a[i2] = a[i1];
a[i1] = t;
}
return a;
}
public void testEquals() throws Exception {
assertTrue("equals([],[])", LongArrays.equals(new long[] { }, new long[] { }));
assertTrue("equals([1,2,3,\"6\"],[1,2,3,\"6\"])", LongArrays.equals(new long[] { 1, 2, 3, 6L }, new long[] { 1, 2, 3, 6L }));
assertFalse("equals([1,2,3,\"6\"],[5,2,3,\"6\"])", LongArrays.equals(new long[] { 1, 2, 3, 6L }, new long[] { 5, 2, 3, 6L }));
assertFalse("equals([1,2,3,\"6\"],[1,2,3,Long.NaN])", LongArrays.equals(new long[] { 1, 2, 3, 6L }, new long[] { 5, 2, 3, 9999999L }));
assertFalse("equals([1,2,3,\"6\"],[1,2,3,\"6\",10])", LongArrays.equals(new long[] { 1, 2, 3, 6L }, new long[] { 5, 2, 3, 6L, 10 }));
}
public void testIndexOf() throws Exception {
assertEquals("indexOf(Long.NaN,1,2,\"3\",Long.NaN)", 3, LongArrays.indexOf(9999999L,1,2,3L,9999999L));
assertEquals("indexOf(Long.NaN,Long.NaN,2,\"3\",4)", 0, LongArrays.indexOf(9999999L, 9999999L, 2, 3L, 4));
assertEquals("indexOf(Long.NaN,1,2,\"3\",4)", -1, LongArrays.indexOf(9999999L, 1, 2, 3L, 4));
assertEquals("indexOf(1,1,2,\"3\",Long.NaN)", 0, LongArrays.indexOf(1, 1, 2, 3L, 9999999L));
assertEquals("indexOf(4,1,2,\"3\",Long.NaN)", -1, LongArrays.indexOf(4, 1, 2, 3L, 9999999L));
assertEquals("indexOf(4,1,2,\"3\",4)", 3, LongArrays.indexOf(4, 1, 2, 3L, 4));
assertEquals("indexOf(\"3\",1,2,\"3\",4)", 2, LongArrays.indexOf(3L, 1, 2, 3L, 4));
}
public void testIndexOfArray() throws Exception {
assertEquals("indexOf([], 0, [1,2,3,6])", 0, LongArrays.indexOf(new long[]{}, 0, new long[]{ 1, 2, 3, 6 }));
assertEquals("indexOf([2], 0, [1,2,3,6])", 1, LongArrays.indexOf(new long[]{2}, 0, new long[]{ 1, 2, 3, 6 }));
assertEquals("indexOf([2,3], 0, [1,2,3,6])", 1, LongArrays.indexOf(new long[]{2, 3}, 0, new long[]{ 1, 2, 3, 6 }));
assertEquals("indexOf([2,3], 2, [1,2,3,6])", -1, LongArrays.indexOf(new long[]{2, 3}, 2, new long[]{ 1, 2, 3, 6 }));
assertEquals("indexOf([2,6], 0, [1,2,3,6])", -1, LongArrays.indexOf(new long[]{2, 6}, 0, new long[]{ 1, 2, 3, 6 }));
}
public void testSortDec() throws Exception {
long[] ary = {0};
LongArrays.sortDec(ary);
assertArrayEquals("heapSort(0)", new long[] { 0 }, ary);
ary = new long[]{3,2,1,1,4,4,6,5,7,2};
LongArrays.sortDec(ary);
assertArrayEquals("heapSort(3,2,1,1,4,4,6,5,7,2)", reverse(new long[] { 1, 1, 2, 2, 3, 4, 4, 5, 6, 7 }), ary);
int N = 500; // Max number of objects that will fit in normal heap size: 16*500^2 = 4m
long[][] a = new long[N][];
long[][] a1 = new long[N][];
long[][] a2 = new long[N][];
Random rand = new Random();
int n = 0;
int c = 0;
for(int i=0; i<N; i++) {
int l = rand.nextInt(N);
long[] s = new long[l];
for(int j=0; j<l; j++) s[j]=rand.nextLong();
a[i] = s;
a1[i] = s.clone();
a2[i] = s.clone();
n += l;
}
System.out.println("Sorting "+N+" arrays of "+n+" elements");
long t0 = System.currentTimeMillis();
for(int i=0; i<N; i++) {
c+=LongArrays.sortDec(a1[i]);
}
long t1 = System.currentTimeMillis();
for(int i=0; i<N; i++) {
java.util.Arrays.sort(a2[i]);
reverse(a2[i]);
}
long t2 = System.currentTimeMillis();
for(int i=0; i<N; i++) {
assertArrayEquals("sort("+LongArrays.join(",",a[i])+")",a2[i],a1[i]);
}
System.out.println("Sorted "+N+" arrays of "+n+" elements in "+(t1-t0)+"ms, "+c+" operations ("+(t2-t1)+"ms for java.util.LongArrays.sort)");
}
public void testSortInc() throws Exception {
long[] ary = {0};
LongArrays.sortInc(ary);
assertArrayEquals("heapSort(0)", new long[] { 0 }, ary);
ary = new long[]{3,2,1,1,4,4,6,5,7,2};
LongArrays.sortInc(ary);
assertArrayEquals("heapSort(3,2,1,1,4,4,6,5,7,2)", new long[] { 1, 1, 2, 2, 3, 4, 4, 5, 6, 7 }, ary);
int N = 500; // Max number of objects that will fit in normal heap size: 16*500^2 = 4m
long[][] a = new long[N][];
long[][] a1 = new long[N][];
long[][] a2 = new long[N][];
Random rand = new Random();
int n = 0;
int c = 0;
for(int i=0; i<N; i++) {
int l = rand.nextInt(N);
long[] s = new long[l];
for(int j=0; j<l; j++) s[j]=rand.nextLong();
a[i] = s;
a1[i] = s.clone();
a2[i] = s.clone();
n += l;
}
System.out.println("Sorting "+N+" arrays of "+n+" elements");
long t0 = System.currentTimeMillis();
for(int i=0; i<N; i++) {
c+=LongArrays.sortInc(a1[i]);
}
long t1 = System.currentTimeMillis();
for(int i=0; i<N; i++) {
java.util.Arrays.sort(a2[i]);
}
long t2 = System.currentTimeMillis();
for(int i=0; i<N; i++) {
assertArrayEquals("sort("+LongArrays.join(",",a[i])+")",a2[i],a1[i]);
}
System.out.println("Sorted "+N+" arrays of "+n+" elements in "+(t1-t0)+"ms, "+c+" operations ("+(t2-t1)+"ms for java.util.LongArrays.sort)");
}
public void testSearchDec() throws Exception {
long[] a1 = reverse(new long[] {});
assertEquals("",-1,LongArrays.searchDec(a1, 0, 0, 1L));
long[] a2 = reverse(new long[] { 2L});
assertEquals("",-2,LongArrays.searchDec(a2, 0, 1, 3L));
long[] a3 = reverse(new long[] { 2L});
assertEquals("",-1,LongArrays.searchDec(a3, 0, 1, 1L));
assertEquals("",0,LongArrays.searchDec(a3, 0, 1, 2L));
long[] a4 = reverse(new long[]{2L, 3L, 4L, 7L, 8L});
assertEquals("",-6,LongArrays.searchDec(a4, 0, 5, 5L));
assertEquals("",2,LongArrays.searchDec(a4, 0, 5, 4L));
}
public void testSearchInc() throws Exception {
long[] a1 = new long[] {};
assertEquals("",-1,LongArrays.searchInc(a1, 0, 0, 1L));
long[] a2 = new long[] { 2L};
assertEquals("",-2,LongArrays.searchInc(a2, 0, 1, 3L));
long[] a3 = new long[] { 2L};
assertEquals("",-1,LongArrays.searchInc(a3, 0, 1, 1L));
assertEquals("",0,LongArrays.searchInc(a3, 0, 1, 2L));
long[] a4 = new long[]{2L, 3L, 4L, 7L, 8L};
assertEquals("",-4,LongArrays.searchInc(a4, 0, 5, 5L));
assertEquals("",2,LongArrays.searchInc(a4, 0, 5, 4L));
}
// public void testInsert() throws Exception {
// long[] a1 = new long[] {Long.NaN};
// assertEquals("",0,LongArrays.insert(a1,0,0,1L));
// assertArrayEquals("",new long[]{1L},a1);
// long[] a2 = new long[] { 2L, Long.NaN};
// assertEquals("",1,LongArrays.insert(a2,0,1,3L));
// assertArrayEquals("",new long[]{2L,3L},a2);
// long[] a3 = new long[] { 2L, Long.NaN};
// assertEquals("",0,LongArrays.insert(a3,0,1,1L));
// assertArrayEquals("",new long[]{1L,2L},a3);
// long[] a4 = new long[]{2L, 3L, 4L, 7L, 8L, Long.NaN};
// assertEquals("",3,LongArrays.insert(a4,0,5,5L));
// assertArrayEquals("",new long[]{2L, 3L, 4L, 5L, 7L, 8L},a4);
// }
public void testUnionDec() throws Exception {
assertArrayEquals("",
reverse(new long[] { }),
LongArrays.unionDec(reverse(new long[] { }), 0, 0, reverse(new long[] { }), 0, 0));
assertArrayEquals("",
reverse(new long[]{2L, 3L, 4L, 5L, 6L}),
LongArrays.unionDec(reverse(new long[] { }), 0, 0, reverse(new long[] { 2L, 3L, 4L, 5L, 6L }), 0, 5));
assertArrayEquals("",
reverse(new long[] { 1L, 2L, 3L, 4L, 5L, 6L, 7L }),
LongArrays.unionDec(reverse(new long[] { 1L, 3L, 7L }), 0, 3, reverse(new long[] { 2L, 3L, 4L, 5L, 6L }), 0, 5));
}
public void testUnionInc() throws Exception {
assertArrayEquals("",
new long[]{},
LongArrays.unionInc(new long[] { }, 0, 0, new long[] { }, 0, 0));
assertArrayEquals("",
new long[]{2L, 3L, 4L, 5L, 6L},
LongArrays.unionInc(new long[] { }, 0, 0, new long[] { 2L, 3L, 4L, 5L, 6L }, 0, 5));
assertArrayEquals("",
new long[]{1L, 2L, 3L, 4L, 5L, 6L, 7L},
LongArrays.unionInc(new long[] { 1L, 3L, 7L }, 0, 3, new long[] { 2L, 3L, 4L, 5L, 6L }, 0, 5));
}
public void testInterDec() throws Exception {
assertArrayEquals("",
reverse(new long[]{}),
LongArrays.interDec(reverse(new long[] { }), 0, 0, reverse(new long[] { }), 0, 0));
assertArrayEquals("",
reverse(new long[]{}),
LongArrays.interDec(reverse(new long[] { }), 0, 0, reverse(new long[] { 2L, 3L, 4L, 5L, 6L }), 0, 5));
assertArrayEquals("",
reverse(new long[]{3L}),
LongArrays.interDec(reverse(new long[] { 1L, 3L, 7L }), 0, 3, reverse(new long[] { 2L, 3L, 4L, 5L, 6L }), 0, 5));
assertArrayEquals("",
reverse(new long[]{3L, 6L}),
LongArrays.interDec(reverse(new long[] { 1L, 3L, 6L }), 0, 3, reverse(new long[] { 2L, 3L, 4L, 5L, 6L }), 0, 5));
}
public void testInterInc() throws Exception {
assertArrayEquals("",
new long[]{},
LongArrays.interInc(new long[] { }, 0, 0, new long[] { }, 0, 0));
assertArrayEquals("",
new long[]{},
LongArrays.interInc(new long[] { }, 0, 0, new long[] { 2L, 3L, 4L, 5L, 6L }, 0, 5));
assertArrayEquals("",
new long[]{3L},
LongArrays.interInc(new long[] { 1L, 3L, 7L }, 0, 3, new long[] { 2L, 3L, 4L, 5L, 6L }, 0, 5));
assertArrayEquals("",
new long[]{3L, 6L},
LongArrays.interInc(new long[] { 1L, 3L, 6L }, 0, 3, new long[] { 2L, 3L, 4L, 5L, 6L }, 0, 5));
}
public void testAppend() throws Exception {
assertArrayEquals("",
new long[]{1L, 2L, 3L, 4L, 5L, 6L},
LongArrays.append(new long[]{1L, 2L, 3L}, 4L, 5L, 6L));
assertArrayEquals("",
new long[]{1L, 2L, 3L, 4L, 5L, 6L},
LongArrays.append(new long[]{}, 1L, 2L, 3L, 4L, 5L, 6L));
assertArrayEquals("",
new long[]{},
LongArrays.append(new long[]{}));
assertArrayEquals("",
new long[]{1L, 2L, 3L, 4L, 5L},
LongArrays.append(new long[]{1L, 2L, 3L}, 4L, 5L));
assertArrayEquals("",
new long[]{1L, 2L, 3L},
LongArrays.append(new long[]{1L, 2L, 3L}));
}
public void testPrepend() throws Exception {
assertArrayEquals("",
new long[]{4L, 5L, 6L, 1L, 2L, 3L},
LongArrays.prepend(new long[]{1L, 2L, 3L}, 4L, 5L, 6L));
assertArrayEquals("",
new long[]{1L, 2L, 3L, 4L, 5L, 6L},
LongArrays.prepend(new long[]{}, 1L, 2L, 3L, 4L, 5L, 6L));
assertArrayEquals("",
new long[]{},
LongArrays.prepend(new long[]{}));
assertArrayEquals("",
new long[]{4L, 5L, 1L, 2L, 3L},
LongArrays.prepend(new long[]{1L, 2L, 3L}, 4L, 5L));
assertArrayEquals("",
new long[]{1L, 2L, 3L},
LongArrays.prepend(new long[]{1L, 2L, 3L}));
}
public void testConcat() throws Exception {
assertArrayEquals("",
new long[]{1L, 2L, 3L, 4L, 5L, 6L},
LongArrays.concat(new long[]{1L, 2L, 3L}, new long[]{4L, 5L, 6L}));
assertArrayEquals("",
new long[]{1L, 2L, 3L, 4L, 5L, 6L},
LongArrays.concat(new long[]{}, new long[]{1L, 2L, 3L, 4L, 5L, 6L}));
assertArrayEquals("",
new long[]{},
LongArrays.concat(new long[]{}));
assertArrayEquals("",
new long[]{1L, 2L, 3L, 4L, 5L, 6L},
LongArrays.concat(new long[]{1L, 2L, 3L}, new long[]{4L, 5L}, new long[]{6L}));
assertArrayEquals("",
new long[]{1L, 2L, 3L, 4L, 5L, 6L},
LongArrays.concat(new long[]{1L, 2L, 3L}, new long[]{}, new long[]{4L, 5L}, new long[]{6L}));
assertArrayEquals("",
new long[]{1L, 2L, 3L, 4L, 5L, 6L},
LongArrays.concat(new long[]{}, new long[]{1L, 2L, 3L}, new long[]{4L, 5L}, new long[]{6L}));
}
public void testSubarray() throws Exception {
assertArrayEquals("subarray([],0,0)", new long[] { }, LongArrays.subarray(new long[]{}, 0, 0));
assertArrayEquals("subarray([1,2,3,4,5,6],0,0)", new long[] { }, LongArrays.subarray(new long[] { 1L, 2L, 3L, 4L, 5L, 6L }, 0, 0));
assertArrayEquals("subarray([1,2,3,4,5,6],6,6)", new long[] { }, LongArrays.subarray(new long[] { 1L, 2L, 3, 4, 5, 6 }, 6, 6));
assertArrayEquals("subarray([1,2,3,4,5,6],1,4)", new long[] { 2, 3, 4 }, LongArrays.subarray(new long[] { 1, 2, 3, 4, 5, 6 }, 1, 4));
assertArrayEquals("subarray([1,2,3,4,5,6],2,3)", new long[] { 3 }, LongArrays.subarray(new long[] { 1, 2, 3, 4, 5, 6 }, 2, 3));
assertArrayEquals("subarray([1,2,3,4,5,6],0,6)", new long[] { 1, 2, 3, 4, 5, 6 }, LongArrays.subarray(new long[] { 1, 2, 3, 4, 5, 6 }, 0, 6));
assertArrayEquals("subarray([1,2,3,4,5,6],1,1)", new long[] { }, LongArrays.subarray(new long[] { 1, 2, 3, 4, 5, 6 }, 1, 1));
try {
LongArrays.subarray(new long[] { }, 0, 1);
fail("subarray([],0,1)");
} catch (ArrayIndexOutOfBoundsException e) {
}
try {
LongArrays.subarray(new long[] { }, 1, 0);
fail("subarray([],1,0)");
} catch (ArrayIndexOutOfBoundsException e) {
}
try {
LongArrays.subarray(new long[] { 1, 2, 3, 4, 5, 6 }, 3, 7);
fail("subarray([1,2,3,4,5,6],3,7)");
} catch (ArrayIndexOutOfBoundsException e) {
}
assertArrayEquals("subarray(['1','2','3','4','5','6'],0,6)", new long[] { 1L, 2L, 3L, 4L, 5L, 6L },
LongArrays.subarray(new long[] { 1L, 2L, 3L, 4L, 5L, 6L }, 0, 6));
}
public void testAsList() throws Exception {
LongContainer list = LongArrays.container(1L,2L,3L);
assertEquals("asList(...).size()", 3, list.size());
LongIterable.LongIterator it=list.iterator();
assertEquals("asList(...).iterator().next()", 1L, it.nextValue());
assertEquals("asList(...).iterator().next().next()", 2L, it.nextValue());
assertEquals("asList(...).iterator().next().next().next()", 3L, it.nextValue());
assertFalse("asList(...).iterator().next().next().next().hasNext()", it.hasNext());
}
public void testStrgLong() throws Exception {
assertEquals("[0|]",LongArrays.toString(new long[]{}));
assertEquals("[1|0]",LongArrays.toString(new long[]{0}));
assertEquals("[1|1]",LongArrays.toString(new long[]{1}));
assertEquals("[1|247]",LongArrays.toString(new long[]{0xF7}));
assertEquals("[5|0,1,2,243,4]",LongArrays.toString(new long[]{0,1,2,0xF3,4}));
assertEquals("[5|0,1,2,243,4]",LongArrays.toString(new StringBuilder(),new long[]{0,1,2,0xF3,4}).toString());
assertEquals("[5|0,1,2,243,4]",LongArrays.toString(new StringBuffer(),new long[]{0,1,2,0xF3,4}).toString());
}
public void testJoinLong() throws Exception {
assertEquals("",LongArrays.join(":",new long[]{}));
assertEquals("0",LongArrays.join(":",new long[]{0}));
assertEquals("1",LongArrays.join(":",new long[]{1}));
assertEquals("247",LongArrays.join(":",new long[]{0xF7}));
assertEquals("0:1:2:243:4",LongArrays.join(":",new long[]{0,1,2,0xF3,4}));
assertEquals("0:1:2:243:4",LongArrays.join(new StringBuilder(),":",new long[]{0,1,2,0xF3,4}).toString());
assertEquals("0:1:2:243:4",LongArrays.join(new StringBuffer(),":",new long[]{0,1,2,0xF3,4}).toString());
assertEquals("0122434",LongArrays.join(null,new long[]{0,1,2,0xF3,4}));
assertEquals("0122434",LongArrays.join(new StringBuilder(),null,new long[]{0,1,2,0xF3,4}).toString());
assertEquals("0122434",LongArrays.join(new StringBuffer(),null,new long[]{0,1,2,0xF3,4}).toString());
}
}