File: geo6.js

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mongodb 1%3A2.4.10-5
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t = db.geo6;
t.drop();

t.ensureIndex( { loc : "2d" } );

assert.eq( 0 , t.find().itcount() , "pre0" );
assert.eq( 0 , t.find( { loc : { $near : [50,50] } } ).itcount() , "pre1" )

t.insert( { _id : 1 , loc : [ 1 , 1 ] } )
t.insert( { _id : 2 , loc : [ 1 , 2 ] } )
t.insert( { _id : 3 } )

assert.eq( 3 , t.find().itcount() , "A1" )
assert.eq( 2 , t.find().hint( { loc : "2d" } ).itcount() , "A2" )
assert.eq( 2 , t.find( { loc : { $near : [50,50] } } ).itcount() , "A3" )

assert.eq( 1 , t.find( { loc : { $near : [50,50] } } ).sort( { _id : 1 } ).next()._id , "B1" )
assert.eq( 2 , t.find( { loc : { $near : [50,50] } } ).sort( { _id : -1 } ).next()._id , "B1" )


t.insert( { _id : 4 , loc : [] } )
assert.eq( 4 , t.find().itcount() , "C1" )