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// Test $elemMatch object with complex embedded expressions.
var t = db.jstests_arrayfindb;
t.drop();
// Case #1: Ensure correct matching for $elemMatch with an embedded $and (SERVER-13664).
t.save({a: [{b: 1, c: 25}, {a: 3, b: 59}]});
assert.eq(0, t.find({a: {$elemMatch: {b: {$gte: 2, $lt: 4}, c: 25}}}).itcount(),
"Case #1: wrong number of results returned -- unindexed");
t.ensureIndex({"a.b": 1, "a.c": 1});
assert.eq(0, t.find({a: {$elemMatch: {b: {$gte: 2, $lt: 4}, c: 25}}}).itcount(),
"Case #1: wrong number of results returned -- indexed");
// Case #2: Ensure correct matching for $elemMatch with an embedded $or.
t.drop();
t.save({a: [{b: 1}, {c: 1}]});
t.save({a: [{b: 2}, {c: 1}]});
t.save({a: [{b: 1}, {c: 2}]});
assert.eq(2, t.find({a: {$elemMatch: {$or: [{b: 2}, {c: 2}]}}}).itcount(),
"Case #2: wrong number of results returned -- unindexed");
t.ensureIndex({"a.b": 1});
t.ensureIndex({"a.c": 1});
assert.eq(2, t.find({a: {$elemMatch: {$or: [{b: 2}, {c: 2}]}}}).itcount(),
"Case #2: wrong number of results returned -- indexed");
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