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t = db.arrayfind2;
t.drop();
function go(prefix) {
assert.eq(3, t.count(), prefix + " A1");
assert.eq(3, t.find({a: {$elemMatch: {x: {$gt: 4}}}}).count(), prefix + " A2");
assert.eq(1, t.find({a: {$elemMatch: {x: {$lt: 2}}}}).count(), prefix + " A3");
assert.eq(
1,
t.find({a: {$all: [{$elemMatch: {x: {$lt: 4}}}, {$elemMatch: {x: {$gt: 5}}}]}}).count(),
prefix + " A4");
assert.throws(function() {
return t.findOne({a: {$all: [1, {$elemMatch: {x: 3}}]}});
});
assert.throws(function() {
return t.findOne({a: {$all: [/a/, {$elemMatch: {x: 3}}]}});
});
}
t.save({a: [{x: 1}, {x: 5}]});
t.save({a: [{x: 3}, {x: 5}]});
t.save({a: [{x: 3}, {x: 6}]});
go("no index");
t.ensureIndex({a: 1});
go("index(a)");
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