mongodb/jstests/remove2.js

// remove2.js
// a unit test for db remove

t = db.removetest2;

function f() {
    t.save( { x:[3,3,3,3,3,3,3,3,4,5,6], z:"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" } );
    t.save( { x: 9 } );
    t.save( { x: 1 } );

    t.remove({x:3});

    assert( t.findOne({x:3}) == null );
    assert( t.validate().valid );
}

x = 0;

function g() {
    t.save( { x:[3,4,5,6], z:"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" } );
    t.save( { x:[7,8,9], z:"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" } );

    t.remove( {x : {$gte:3}, $atomic:x++ } );

    assert( t.findOne({x:3}) == null );
    assert( t.findOne({x:8}) == null );
    assert( t.validate().valid );
}

t.drop();
f();
t.drop();
g();

t.ensureIndex({x:1});
t.remove({});
f();
t.drop();
t.ensureIndex({x:1});
g();