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39 lines
1.2 KiB
JavaScript
39 lines
1.2 KiB
JavaScript
t = db.find_and_modify;
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t.drop();
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// fill db
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for(var i=1; i<=10; i++) {
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t.insert({priority:i, inprogress:false, value:0});
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}
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// returns old
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out = t.findAndModify({update: {$set: {inprogress: true}, $inc: {value:1}}});
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assert.eq(out.value, 0);
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assert.eq(out.inprogress, false);
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t.update({_id: out._id}, {$set: {inprogress: false}});
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// returns new
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out = t.findAndModify({update: {$set: {inprogress: true}, $inc: {value:1}}, 'new': true});
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assert.eq(out.value, 2);
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assert.eq(out.inprogress, true);
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t.update({_id: out._id}, {$set: {inprogress: false}});
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// update highest priority
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out = t.findAndModify({query: {inprogress:false}, sort:{priority:-1}, update: {$set: {inprogress: true}}});
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assert.eq(out.priority, 10);
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// update next highest priority
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out = t.findAndModify({query: {inprogress:false}, sort:{priority:-1}, update: {$set: {inprogress: true}}});
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assert.eq(out.priority, 9);
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// remove lowest priority
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out = t.findAndModify({sort:{priority:1}, remove:true});
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assert.eq(out.priority, 1);
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// remove next lowest priority
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out = t.findAndModify({sort:{priority:1}, remove:1});
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assert.eq(out.priority, 2);
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// return empty obj if no matches (drivers may handle this differently)
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out = t.findAndModify({query:{no_such_field:1}, remove:1});
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assert.eq(out, {});
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