File: geof.js

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

// corners (dist ~0.98)
t.insert({loc: [ 0.7,  0.7]})
t.insert({loc: [ 0.7, -0.7]})
t.insert({loc: [-0.7,  0.7]})
t.insert({loc: [-0.7, -0.7]})

// on x axis (dist == 0.9)
t.insert({loc: [-0.9, 0]})
t.insert({loc: [-0.9, 0]})

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

t.find({loc: {$near: [0,0]}}).limit(2).forEach( function(o){
    //printjson(o);
    assert.lt(Geo.distance([0,0], o.loc), 0.95);
});