void run() {
setup();
insert(fromjson("{_id: 1, x: 5}"));
insert(fromjson("{_id: 2, x: 6}"));
insert(fromjson("{_id: 3, x: 10}"));
std::unique_ptr<IndexScan> ixscan(
createIndexScan(BSON("x" << 5), BSON("x" << 10), false, false));
// Expect to get key {'': 6}.
WorkingSetMember* member = getNext(ixscan.get());
ASSERT_EQ(WorkingSetMember::RID_AND_IDX, member->getState());
ASSERT_BSONOBJ_EQ(member->keyData[0].keyData, BSON("" << 6));
// Save state and insert an indexed doc.
ixscan->saveState();
insert(fromjson("{_id: 4, x: 7}"));
ixscan->restoreState();
member = getNext(ixscan.get());
ASSERT_EQ(WorkingSetMember::RID_AND_IDX, member->getState());
ASSERT_BSONOBJ_EQ(member->keyData[0].keyData, BSON("" << 7));
WorkingSetID id;
ASSERT_EQ(PlanStage::IS_EOF, ixscan->work(&id));
ASSERT(ixscan->isEOF());
}
void run() {
setup();
insert(fromjson("{_id: 1, x: 10}"));
insert(fromjson("{_id: 2, x: 8}"));
insert(fromjson("{_id: 3, x: 3}"));
std::unique_ptr<IndexScan> ixscan(
createIndexScan(BSON("x" << 10), BSON("x" << 5), true, true, -1 /* reverse scan */));
// Expect to get key {'': 10} and then {'': 8}.
WorkingSetMember* member = getNext(ixscan.get());
ASSERT_EQ(WorkingSetMember::RID_AND_IDX, member->getState());
ASSERT_BSONOBJ_EQ(member->keyData[0].keyData, BSON("" << 10));
member = getNext(ixscan.get());
ASSERT_EQ(WorkingSetMember::RID_AND_IDX, member->getState());
ASSERT_BSONOBJ_EQ(member->keyData[0].keyData, BSON("" << 8));
// Save state and insert an indexed doc.
ixscan->saveState();
insert(fromjson("{_id: 4, x: 6}"));
insert(fromjson("{_id: 5, x: 9}"));
ixscan->restoreState();
// Ensure that we don't erroneously return {'': 9} or {'':3}.
member = getNext(ixscan.get());
ASSERT_EQ(WorkingSetMember::RID_AND_IDX, member->getState());
ASSERT_BSONOBJ_EQ(member->keyData[0].keyData, BSON("" << 6));
WorkingSetID id;
ASSERT_EQ(PlanStage::IS_EOF, ixscan->work(&id));
ASSERT(ixscan->isEOF());
}
// testcount is a wrapper around runCount that
// - sets up a countStage
// - runs it
// - asserts count is not trivial
// - asserts nCounted is equal to expected_n
// - asserts nSkipped is correct
void testCount(const CountRequest& request, int expected_n=kDocuments, bool indexed=false) {
setup();
getLocs();
auto_ptr<WorkingSet> ws(new WorkingSet);
StatusWithMatchExpression swme = MatchExpressionParser::parse(request.query);
auto_ptr<MatchExpression> expression(swme.getValue());
PlanStage* scan;
if (indexed) {
scan = createIndexScan(expression.get(), ws.get());
} else {
scan = createCollScan(expression.get(), ws.get());
}
CountStage countStage(&_txn, _coll, request, ws.get(), scan);
const CountStats* stats = runCount(countStage);
ASSERT_FALSE(stats->trivialCount);
ASSERT_EQUALS(stats->nCounted, expected_n);
ASSERT_EQUALS(stats->nSkipped, request.skip);
}