From 1b0ab18ed444e7aa63bd93a7fd19009e18ea9508 Mon Sep 17 00:00:00 2001
From: AlexanderSaydakov <AlexanderSaydakov@users.noreply.github.com>
Date: Tue, 20 Feb 2024 16:49:45 -0800
Subject: [PATCH] cross-language test

---
 tdigest/test/CMakeLists.txt                 |  7 ++++
 tdigest/test/tdigest_serialize_for_java.cpp | 37 +++++++++++++++++++++
 2 files changed, 44 insertions(+)
 create mode 100644 tdigest/test/tdigest_serialize_for_java.cpp

diff --git a/tdigest/test/CMakeLists.txt b/tdigest/test/CMakeLists.txt
index 2382c706..dbac6cec 100644
--- a/tdigest/test/CMakeLists.txt
+++ b/tdigest/test/CMakeLists.txt
@@ -39,3 +39,10 @@ target_sources(tdigest_test
   PRIVATE
     tdigest_test.cpp
 )
+
+if (GENERATE)
+target_sources(tdigest_test
+  PRIVATE
+    tdigest_serialize_for_java.cpp
+)
+endif()
diff --git a/tdigest/test/tdigest_serialize_for_java.cpp b/tdigest/test/tdigest_serialize_for_java.cpp
new file mode 100644
index 00000000..ed0e4f8c
--- /dev/null
+++ b/tdigest/test/tdigest_serialize_for_java.cpp
@@ -0,0 +1,37 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#include <catch2/catch.hpp>
+#include <fstream>
+
+#include "tdigest.hpp"
+
+namespace datasketches {
+
+TEST_CASE("tdigest double generate", "[serialize_for_java]") {
+  const unsigned n_arr[] = {0, 1, 10, 100, 1000, 10000, 100000, 1000000};
+  for (const unsigned n: n_arr) {
+    tdigest_double td(100);
+    for (unsigned i = 1; i <= n; ++i) td.update(i);
+    std::ofstream os("tdigest_double_n" + std::to_string(n) + "_cpp.sk", std::ios::binary);
+    td.serialize(os);
+  }
+}
+
+} /* namespace datasketches */