mongodb/jstests/index2.js

/* test indexing where the key is an embedded object.
 */

t = db.embeddedIndexTest2;

t.drop();
assert( t.findOne() == null );

o = { name : "foo" , z : { a : 17 } };
p = { name : "foo" , z : { a : 17 } };
q = { name : "barrr" , z : { a : 18 } };
r = { name : "barrr" , z : { k : "zzz", L:[1,2] } };

t.save( o );

assert( t.findOne().z.a == 17 );

t.save( p );
t.save( q );

assert( t.findOne({z:{a:17}}).z.a==17 );
assert( t.find({z:{a:17}}).length() == 2 );
assert( t.find({z:{a:18}}).length() == 1 );

t.save( r );

assert( t.findOne({z:{a:17}}).z.a==17 );
assert( t.find({z:{a:17}}).length() == 2 );
assert( t.find({z:{a:18}}).length() == 1 );

t.ensureIndex( { z : 1 } );

assert( t.findOne({z:{a:17}}).z.a==17 );
assert( t.find({z:{a:17}}).length() == 2 );
assert( t.find({z:{a:18}}).length() == 1 );

assert( t.find().sort( { z : 1 } ).length() == 4 );
assert( t.find().sort( { z : -1 } ).length() == 4 );

assert(t.validate().valid);