SERVER-23092 Collation-aware index key generation

1 files changed, 122 insertions, 0 deletions

diff --git a/src/mongo/db/index/2d_key_generator_test.cpp b/src/mongo/db/index/2d_key_generator_test.cpp
new file mode 100644
index 00000000000..256dc7ecc2f
--- /dev/null
+++ b/src/mongo/db/index/2d_key_generator_test.cpp
@@ -0,0 +1,122 @@
+/**
+ *    Copyright (C) 2014 MongoDB Inc.
+ *
+ *    This program is free software: you can redistribute it and/or  modify
+ *    it under the terms of the GNU Affero General Public License, version 3,
+ *    as published by the Free Software Foundation.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU Affero General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Affero General Public License
+ *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *    As a special exception, the copyright holders give permission to link the
+ *    code of portions of this program with the OpenSSL library under certain
+ *    conditions as described in each individual source file and distribute
+ *    linked combinations including the program with the OpenSSL library. You
+ *    must comply with the GNU Affero General Public License in all respects for
+ *    all of the code used other than as permitted herein. If you modify file(s)
+ *    with this exception, you may extend this exception to your version of the
+ *    file(s), but you are not obligated to do so. If you do not wish to do so,
+ *    delete this exception statement from your version. If you delete this
+ *    exception statement from all source files in the program, then also delete
+ *    it in the license file.
+ */
+
+#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kIndex
+
+#include "mongo/platform/basic.h"
+
+#include "mongo/db/index/expression_keys_private.h"
+
+#include "mongo/bson/bsonobjbuilder.h"
+#include "mongo/db/index/2d_common.h"
+#include "mongo/db/index/expression_params.h"
+#include "mongo/db/json.h"
+#include "mongo/unittest/unittest.h"
+#include "mongo/util/log.h"
+
+using namespace mongo;
+
+namespace {
+
+std::string dumpKeyset(const BSONObjSet& objs) {
+    std::stringstream ss;
+    ss << "[ ";
+    for (BSONObjSet::iterator i = objs.begin(); i != objs.end(); ++i) {
+        ss << i->toString() << " ";
+    }
+    ss << "]";
+
+    return ss.str();
+}
+
+bool assertKeysetsEqual(const BSONObjSet& expectedKeys, const BSONObjSet& actualKeys) {
+    if (expectedKeys != actualKeys) {
+        log() << "Expected: " << dumpKeyset(expectedKeys) << ", "
+              << "Actual: " << dumpKeyset(actualKeys);
+        return false;
+    }
+    return true;
+}
+
+BSONObj make2DKey(const TwoDIndexingParams& params, int x, int y, BSONElement trailingFields) {
+    BSONObjBuilder bob;
+    BSONObj locObj = BSON_ARRAY(x << y);
+    params.geoHashConverter->hash(locObj, nullptr).appendHashMin(&bob, "");
+    bob.append(trailingFields);
+    return bob.obj();
+}
+
+TEST(2dKeyGeneratorTest, TrailingField) {
+    BSONObj obj = fromjson("{a: [0, 0], b: 5}");
+    BSONObj infoObj = fromjson("{key: {a: '2d', b: 1}}");
+    TwoDIndexingParams params;
+    ExpressionParams::parseTwoDParams(infoObj, &params);
+    BSONObjSet actualKeys;
+    std::vector<BSONObj> locs;
+    ExpressionKeysPrivate::get2DKeys(obj, params, &actualKeys, &locs);
+
+    BSONObjSet expectedKeys;
+    BSONObj trailingFields = BSON("" << 5);
+    expectedKeys.insert(make2DKey(params, 0, 0, trailingFields.firstElement()));
+
+    ASSERT(assertKeysetsEqual(expectedKeys, actualKeys));
+}
+
+TEST(2dKeyGeneratorTest, ArrayTrailingField) {
+    BSONObj obj = fromjson("{a: [0, 0], b: [5, 6]}");
+    BSONObj infoObj = fromjson("{key: {a: '2d', b: 1}}");
+    TwoDIndexingParams params;
+    ExpressionParams::parseTwoDParams(infoObj, &params);
+    BSONObjSet actualKeys;
+    std::vector<BSONObj> locs;
+    ExpressionKeysPrivate::get2DKeys(obj, params, &actualKeys, &locs);
+
+    BSONObjSet expectedKeys;
+    BSONObj trailingFields = BSON("" << BSON_ARRAY(5 << 6));
+    expectedKeys.insert(make2DKey(params, 0, 0, trailingFields.firstElement()));
+
+    ASSERT(assertKeysetsEqual(expectedKeys, actualKeys));
+}
+
+TEST(2dKeyGeneratorTest, ArrayOfObjectsTrailingField) {
+    BSONObj obj = fromjson("{a: [0, 0], b: [{c: 5}, {c: 6}]}");
+    BSONObj infoObj = fromjson("{key: {a: '2d', 'b.c': 1}}");
+    TwoDIndexingParams params;
+    ExpressionParams::parseTwoDParams(infoObj, &params);
+    BSONObjSet actualKeys;
+    std::vector<BSONObj> locs;
+    ExpressionKeysPrivate::get2DKeys(obj, params, &actualKeys, &locs);
+
+    BSONObjSet expectedKeys;
+    BSONObj trailingFields = BSON("" << BSON_ARRAY(5 << 6));
+    expectedKeys.insert(make2DKey(params, 0, 0, trailingFields.firstElement()));
+
+    ASSERT(assertKeysetsEqual(expectedKeys, actualKeys));
+}
+
+}  // namespace