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var st = new ShardingTest({ shards: 1 });
var testDB = st.s.getDB('test');
var mapFunc = function() { emit(this.x, 1); };
var reduceFunc = function(key, values) { return values.length; };
assert.commandFailed(testDB.runCommand({ mapReduce: 'user',
map: mapFunc,
reduce: reduceFunc,
out: { inline: 1, sharded: true }}));
testDB.bar.insert({i: 1});
assert.commandFailed(testDB.runCommand({ mapReduce: 'bar',
map: function() {emit(this.i, this.i*3);},
reduce: function(key, values) {return Array.sum(values);},
out: { replace: "foo", db: "admin" }}));
assert.commandFailed(testDB.runCommand({ mapReduce: 'bar',
map: function() {emit(this.i, this.i*3);},
reduce: function(key, values) {return Array.sum(values);},
out: { replace: "foo", db: "config" }}));
assert.commandWorked(testDB.runCommand({ mapReduce: 'bar',
map: function() {emit(this.i, this.i*3);},
reduce: function(key, values) {return Array.sum(values);},
out: { replace: "foo", db: "test" }}));
st.stop();
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