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unittest/share/test_datum_cmp.cpp

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+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase CE is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+
+#include <gtest/gtest.h>
+
+#define private public
+#include "share/datum/ob_datum_funcs.h"
+#include "sql/engine/expr/ob_expr_cmp_func.h"
+#include "sql/test_sql_utils.h"
+
+#include <fstream>
+#include <iterator>
+#include <string>
+#include <algorithm>
+
+#undef private
+
+namespace oceanbase {
+namespace share {
+using namespace common;
+using namespace sql;
+static bool is_equal_content(const char* tmp_file, const char* result_file)
+{
+  std::ifstream if_tmp(tmp_file);
+  std::ifstream if_result(result_file);
+
+  EXPECT_TRUE(if_tmp.is_open());
+  EXPECT_TRUE(if_result.is_open());
+
+  std::istream_iterator<std::string> if_tmp_iter(if_tmp);
+  std::istream_iterator<std::string> if_result_iter(if_result);
+
+  return std::equal(if_tmp_iter, std::istream_iterator<std::string>(), if_result_iter);
+}
+
+class ObTestDatumCmp : public ::testing::Test {
+  public:
+  ObTestDatumCmp()
+  {}
+  ~ObTestDatumCmp()
+  {}
+  virtual void SetUp()
+  {}
+  virtual void TearDown()
+  {}
+
+  private:
+  DISALLOW_COPY_AND_ASSIGN(ObTestDatumCmp);
+};
+
+TEST(ObTestDatumCmp, defined_nullsafe_func_by_type)
+{
+  const char* defined_func_file = "./test_defined_func_by_type.result";
+  const char* tmp_file = "./test_defined_func_by_type.tmp";
+  std::ofstream of_result(tmp_file);
+
+  for (int i = 0; i < ObMaxType; i++) {
+    of_result << "/**************** " << ob_obj_type_str(static_cast<ObObjType>(i)) << " ****************/"
+              << "\n\n";
+    for (int j = 0; j < ObMaxType; j++) {
+      of_result << "<" << ob_obj_type_str(static_cast<ObObjType>(i)) << ", "
+                << ob_obj_type_str(static_cast<ObObjType>(j)) << ">"
+                << " : ";
+      if (NULL !=
+          ObDatumFuncs::get_nullsafe_cmp_func(
+              static_cast<ObObjType>(i), static_cast<ObObjType>(j), NULL_FIRST, CS_TYPE_COLLATION_FREE, false)) {
+        of_result << "defined\n";
+      } else {
+        of_result << "not defined\n";
+      }
+    }  // for end
+    of_result << "\n";
+  }  // for end
+  of_result.flush();
+  EXPECT_TRUE(is_equal_content(tmp_file, defined_func_file));
+}
+
+TEST(ObTestDatumCmp, defined_expr_func_by_type)
+{
+  const char* defined_func_file = "./test_defined_expr_func_by_type.result";
+  const char* tmp_file = "./test_defined_expr_func.tmp";
+  std::ofstream of_result(tmp_file);
+
+  for (int i = 0; i < ObMaxType; i++) {
+    of_result << "/**************** " << ob_obj_type_str(static_cast<ObObjType>(i)) << " ****************/"
+              << "\n\n";
+    for (int j = 0; j < ObMaxType; j++) {
+      of_result << "<" << ob_obj_type_str(static_cast<ObObjType>(i)) << ", "
+                << ob_obj_type_str(static_cast<ObObjType>(j)) << "> : ";
+      if (NULL != ObExprCmpFuncsHelper::get_datum_expr_cmp_func(
+                      static_cast<ObObjType>(i), static_cast<ObObjType>(j), false, CS_TYPE_COLLATION_FREE)) {
+        of_result << "defined\n";
+      } else {
+        of_result << "not defined\n";
+      }
+    }  // for end
+    of_result << "\n";
+  }  // for end
+  of_result.flush();
+  EXPECT_TRUE(is_equal_content(tmp_file, defined_func_file));
+}
+}  // end namespace share
+}  // end namespace oceanbase
+
+int main(int argc, char** argv)
+{
+  ::testing::InitGoogleTest(&argc, argv);
+  OB_LOGGER.set_log_level("INFO");
+  OB_LOGGER.set_file_name("test_datum_cmp.log", true);
+  return RUN_ALL_TESTS();
+}