SERVER-53091 Consolidate the Sharding unit-tests into 3 binaries only

1 files changed, 156 insertions, 0 deletions

diff --git a/src/mongo/s/commands/cluster_aggregate_test.cpp b/src/mongo/s/commands/cluster_aggregate_test.cpp
new file mode 100644
index 00000000000..08bcc8081e9
--- /dev/null
+++ b/src/mongo/s/commands/cluster_aggregate_test.cpp
@@ -0,0 +1,156 @@
+/**
+ *    Copyright (C) 2018-present MongoDB, Inc.
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the Server Side Public License, version 1,
+ *    as published by MongoDB, Inc.
+ *
+ *    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
+ *    Server Side Public License for more details.
+ *
+ *    You should have received a copy of the Server Side Public License
+ *    along with this program. If not, see
+ *    <http://www.mongodb.com/licensing/server-side-public-license>.
+ *
+ *    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 Server Side 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_LOGV2_DEFAULT_COMPONENT ::mongo::logv2::LogComponent::kDefault
+
+#include "mongo/platform/basic.h"
+
+#include "mongo/db/query/cursor_response.h"
+#include "mongo/s/commands/cluster_command_test_fixture.h"
+#include "mongo/s/query/cluster_aggregate.h"
+
+namespace mongo {
+namespace {
+
+class ClusterAggregateTest : public ClusterCommandTestFixture {
+protected:
+    const BSONObj kAggregateCmdTargeted{
+        fromjson("{aggregate: 'coll', pipeline: [{$match: {_id: 0}}], explain: false, "
+                 "allowDiskUse: false, cursor: {batchSize: 10}, maxTimeMS: 100}")};
+
+    const BSONObj kAggregateCmdScatterGather{
+        fromjson("{aggregate: 'coll', pipeline: [], explain: false, allowDiskUse: false, cursor: "
+                 "{batchSize: 10}}")};
+
+    // The index of the shard expected to receive the response is used to prevent different shards
+    // from returning documents with the same shard key. This is expected to be 0 for queries
+    // targeting one shard.
+    void expectReturnsSuccess(int shardIndex) {
+        onCommandForPoolExecutor([this, shardIndex](const executor::RemoteCommandRequest& request) {
+            ASSERT_EQ(kNss.coll(), request.cmdObj.firstElement().valueStringData());
+
+            std::vector<BSONObj> batch = {BSON("_id" << shardIndex)};
+            CursorResponse cursorResponse(kNss, CursorId(0), batch);
+
+            BSONObjBuilder bob;
+            const auto cursorResponseObj =
+                cursorResponse.toBSON(CursorResponse::ResponseType::InitialResponse);
+            bob.appendElementsUnique(cursorResponseObj);
+            appendTxnResponseMetadata(bob);
+            return bob.obj();
+        });
+    }
+
+    void expectInspectRequest(int shardIndex, InspectionCallback cb) {
+        onCommandForPoolExecutor([&](const executor::RemoteCommandRequest& request) {
+            ASSERT_EQ(kNss.coll(), request.cmdObj.firstElement().valueStringData());
+
+            cb(request);
+
+            std::vector<BSONObj> batch = {BSON("_id" << shardIndex)};
+            CursorResponse cursorResponse(kNss, CursorId(0), batch);
+
+            BSONObjBuilder bob;
+            const auto cursorResponseObj =
+                cursorResponse.toBSON(CursorResponse::ResponseType::InitialResponse);
+            bob.appendElementsUnique(cursorResponseObj);
+            appendTxnResponseMetadata(bob);
+            return bob.obj();
+        });
+    }
+
+    /**
+     * This method should only be used to test early exits from Cluster::runAggregate, before
+     * a request is sent to the shards. Otherwise the call would get blocked as no expect* hooks
+     * are provided in this method.
+     */
+    Status testRunAggregateEarlyExit(const BSONObj& inputBson) {
+        BSONObjBuilder result;
+        NamespaceString nss{"a.collection"};
+        auto client = getServiceContext()->makeClient("ClusterCmdClient");
+        auto opCtx = client->makeOperationContext();
+        auto request = AggregationRequest::parseFromBSON(nss, inputBson);
+        if (request.getStatus() != Status::OK()) {
+            return request.getStatus();
+        }
+        return ClusterAggregate::runAggregate(opCtx.get(),
+                                              ClusterAggregate::Namespaces{nss, nss},
+                                              request.getValue(),
+                                              {request.getValue()},
+                                              PrivilegeVector(),
+                                              &result);
+    }
+};
+
+TEST_F(ClusterAggregateTest, NoErrors) {
+    testNoErrors(kAggregateCmdTargeted, kAggregateCmdScatterGather);
+}
+
+TEST_F(ClusterAggregateTest, RetryOnSnapshotError) {
+    testRetryOnSnapshotError(kAggregateCmdTargeted, kAggregateCmdScatterGather);
+}
+
+TEST_F(ClusterAggregateTest, MaxRetriesSnapshotErrors) {
+    testMaxRetriesSnapshotErrors(kAggregateCmdTargeted, kAggregateCmdScatterGather);
+}
+
+TEST_F(ClusterAggregateTest, AttachesAtClusterTimeForSnapshotReadConcern) {
+    testAttachesAtClusterTimeForSnapshotReadConcern(kAggregateCmdTargeted,
+                                                    kAggregateCmdScatterGather);
+}
+
+TEST_F(ClusterAggregateTest, SnapshotReadConcernWithAfterClusterTime) {
+    testSnapshotReadConcernWithAfterClusterTime(kAggregateCmdTargeted, kAggregateCmdScatterGather);
+}
+
+TEST_F(ClusterAggregateTest, ShouldFailWhenFromMongosIsTrue) {
+    const BSONObj inputBson = fromjson("{pipeline: [], cursor: {}, fromMongos: true}");
+    ASSERT_THROWS_CODE(testRunAggregateEarlyExit(inputBson), AssertionException, 51089);
+}
+
+TEST_F(ClusterAggregateTest, ShouldFailWhenNeedsMergeIstrueAndFromMongosIsFalse) {
+    const BSONObj inputBson =
+        fromjson("{pipeline: [], cursor: {}, needsMerge: true, fromMongos: false}");
+    ASSERT_THROWS_CODE(testRunAggregateEarlyExit(inputBson), AssertionException, 51089);
+}
+
+TEST_F(ClusterAggregateTest, ShouldFailWhenNeedsMergeIstrueAndFromMongosIsTrue) {
+    const BSONObj inputBson =
+        fromjson("{pipeline: [], cursor: {}, needsMerge: true, fromMongos: true}");
+    ASSERT_THROWS_CODE(testRunAggregateEarlyExit(inputBson), AssertionException, 51089);
+}
+
+TEST_F(ClusterAggregateTest, ShouldFailWhenExchengeIsPresent) {
+    const BSONObj inputBson = fromjson(
+        "{pipeline: [], cursor: {}, exchange: {policy: 'roundrobin', consumers: NumberInt(2)}}");
+    ASSERT_THROWS_CODE(testRunAggregateEarlyExit(inputBson), AssertionException, 51028);
+}
+
+}  // namespace
+}  // namespace mongo