1 files changed, 74 insertions, 0 deletions
diff --git a/src/mongo/db/exec/sbe/util/stage_results_printer_test.cpp b/src/mongo/db/exec/sbe/util/stage_results_printer_test.cpp
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index 00000000000..f6cd96a3495
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+++ b/src/mongo/db/exec/sbe/util/stage_results_printer_test.cpp
@@ -0,0 +1,74 @@
+/**
+ *    Copyright (C) 2022-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.
+ */
+
+#include "mongo/db/exec/sbe/sbe_plan_stage_test.h"
+#include "mongo/db/exec/sbe/util/stage_results_printer.h"
+#include "mongo/unittest/unittest.h"
+
+namespace mongo::sbe {
+
+class StageResultsPrinterTestFixture : public PlanStageTestFixture {
+public:
+    void runTest(const std::vector<std::string>& names,
+                 const BSONArray& input,
+                 const PrintOptions& options,
+                 const std::string expected) {
+        auto ctx = makeCompileCtx();
+        auto [scanSlots, scanStage] = generateVirtualScanMulti(names.size(), input);
+
+        prepareTree(ctx.get(), scanStage.get());
+
+        std::stringstream stream;
+        StageResultsPrinters::make(stream, options)
+            .printStageResults(ctx.get(), scanSlots, names, scanStage.get());
+
+        ASSERT_EQ(stream.str(), expected);
+
+        scanStage->close();
+    }
+};
+
+TEST_F(StageResultsPrinterTestFixture, SimpleStage) {
+    runTest({"a", "b"},
+            BSON_ARRAY(BSON_ARRAY(1 << "abc") << BSON_ARRAY(2.5 << "def")),
+            PrintOptions(),
+            "[a, b]:\n"
+            "1, \"abc\"\n"
+            "2.5, \"def\"\n");
+}
+
+TEST_F(StageResultsPrinterTestFixture, SimpleStageWithLimit) {
+    runTest({"a", "b"},
+            BSON_ARRAY(BSON_ARRAY(1 << "abc") << BSON_ARRAY(2.5 << "def")),
+            PrintOptions().arrayObjectOrNestingMaxDepth(1),
+            "[a, b]:\n"
+            "1, \"abc\"\n"
+            "...\n");
+}
+}  // namespace mongo::sbe