1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
Random.setRandomSeed();
db.capped6.drop();
db._dbCommand( { create: "capped6", capped: true, size: 1000, $nExtents: 11, autoIndexId: false } );
tzz = db.capped6;
function debug( x ) {
// print( x );
}
function checkOrder( i ) {
res = tzz.find().sort( { $natural: -1 } );
assert( res.hasNext(), "A" );
var j = i;
while( res.hasNext() ) {
try {
assert.eq( val[ j-- ].a, res.next().a, "B" );
} catch( e ) {
debug( "capped6 err " + j );
throw e;
}
}
res = tzz.find().sort( { $natural: 1 } );
assert( res.hasNext(), "C" );
while( res.hasNext() )
assert.eq( val[ ++j ].a, res.next().a, "D" );
assert.eq( j, i, "E" );
}
var val = new Array( 500 );
var c = "";
for( i = 0; i < 500; ++i, c += "-" ) {
val[ i ] = { a: c };
}
var oldMax = Random.randInt( 500 );
var max = 0;
function doTest() {
for( var i = max; i < oldMax; ++i ) {
tzz.save( val[ i ] );
}
max = oldMax;
count = tzz.count();
var min = 1;
if ( Random.rand() > 0.3 ) {
min = Random.randInt( count ) + 1;
}
while( count > min ) {
var n = Random.randInt( count - min - 1 ); // 0 <= x <= count - min - 1
var inc = Random.rand() > 0.5;
debug( count + " " + n + " " + inc );
assert.commandWorked( db.runCommand( { captrunc:"capped6", n:n, inc:inc } ) );
if ( inc ) {
n += 1;
}
count -= n;
max -= n;
checkOrder( max - 1 );
}
}
for( var i = 0; i < 10; ++i ) {
doTest();
}
// reverse order of values
var val = new Array( 500 );
var c = "";
for( i = 499; i >= 0; --i, c += "-" ) {
val[ i ] = { a: c };
}
db.capped6.drop();
db._dbCommand( { create: "capped6", capped: true, size: 1000, $nExtents: 11, autoIndexId: false } );
tzz = db.capped6;
for( var i = 0; i < 10; ++i ) {
doTest();
}
|
