File: update_arraymatch1.js

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mongodb 1%3A1.4.4-3
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t = db.update_arraymatch1
t.drop();

o = { _id : 1 , a : [ { x : 1 , y : 1 } , { x : 2 , y : 2 } , { x : 3 , y : 3 } ] }
t.insert( o );
assert.eq( o , t.findOne() , "A1" );

q = { "a.x" : 2 }
t.update( q , { $set : { b : 5 } } )
o.b = 5
assert.eq( o , t.findOne() , "A2" )

t.update( { "a.x" : 2 } , { $inc : { "a.$.y" : 1 } } )
o.a[1].y++;
assert.eq( o , t.findOne() , "A3" );