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mongo/jstests/core/remove7.js

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JavaScript
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t = db.remove7
t.drop();
function getTags( n ){
n = n || 5;
var a = [];
for ( var i=0; i<n; i++ ){
var v = Math.ceil( 20 * Math.random() );
a.push( v );
}
return a;
}
for ( i=0; i<1000; i++ ){
t.save( { tags : getTags() } );
}
t.ensureIndex( { tags : 1 } );
for ( i=0; i<200; i++ ){
for ( var j=0; j<10; j++ )
t.save( { tags : getTags( 100 ) } );
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var q = { tags : { $in : getTags( 10 ) } };
var before = t.find( q ).count();
var res = t.remove( q );
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var after = t.find( q ).count();
assert.eq( 0 , after , "not zero after!" );
assert.writeOK( res );
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}