jstests/drop2.js


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t = db.jstests_drop2;
t.drop();

function debug( x ) {
//    printjson( x );
}

t.save( {} );
db.getLastError();

function op( drop ) {
    p = db.currentOp().inprog;
    debug( p );
    for ( var i in p ) {
        var o = p[ i ];
        if ( drop ) {
            if ( o.active && o.query && o.query.drop && o.query.drop == "jstests_drop2" ) {
                return o.opid;
            }
        } else {
            if ( o.active && o.query && o.query.query && o.query.query.$where && o.ns == "test.jstests_drop2" ) {
                return o.opid;
            }
        }
    }
    return null;
}

s1 = startParallelShell( "db.jstests_drop2.count( { $where: function() { while( 1 ) { ; } } } )" );
countOp = null;
assert.soon( function() { countOp = op( false ); return countOp; } );

s2 = startParallelShell( "db.jstests_drop2.drop()" );
dropOp = null;
assert.soon( function() { dropOp = op( true ); return dropOp; } );

db.killOp( dropOp );
db.killOp( countOp );

s1();
s2();

t.drop(); // in SERVER-1818, this fails