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deps/oblib/unittest/lib/random/test_mysql_random.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>
+#include "lib/random/ob_mysql_random.h"
+
+namespace oceanbase {
+namespace common {
+
+class TestMysqlRandom : public ::testing::Test {
+  public:
+  virtual void SetUp()
+  {}
+  virtual void TearDown()
+  {}
+};
+
+TEST_F(TestMysqlRandom, main_test)
+{
+  double res_double = 0;
+  uint64_t res_uint = 0;
+  char res_buf[21];
+  // test static methods
+
+  ObMysqlRandom random;
+  ASSERT_TRUE(false == random.is_inited());
+  ASSERT_TRUE(0 == random.get_double());
+  ASSERT_TRUE(0 == random.get_uint64());
+  ASSERT_TRUE(OB_NOT_INIT == random.create_random_string(NULL, 21));
+  ASSERT_TRUE(OB_NOT_INIT == random.create_random_string(res_buf, -1));
+
+  random.init(123, 456);
+  ASSERT_TRUE(random.is_inited());
+  ASSERT_TRUE(0 != random.max_value_);
+  ASSERT_TRUE(0 != random.max_value_double_);
+  ASSERT_TRUE(OB_INVALID_ARGUMENT == random.create_random_string(NULL, 21));
+  ASSERT_TRUE(OB_INVALID_ARGUMENT == random.create_random_string(res_buf, -1));
+  ASSERT_TRUE(OB_INVALID_ARGUMENT == random.create_random_string(res_buf, 0));
+
+  for (int64_t i = 0; i < 1000; ++i) {
+    res_double = random.get_double();
+    LIB_LOG(INFO, "res_double", K(i), K(res_double));
+    ASSERT_TRUE(res_double > 0);
+    ASSERT_TRUE(res_double < 1);
+  }
+
+  for (int64_t i = 0; i < 1000; ++i) {
+    res_uint = random.get_uint64();
+    LIB_LOG(INFO, "res_uint", K(i), K(res_uint));
+    ASSERT_TRUE(res_uint > 0);
+    ASSERT_TRUE(res_uint < 0xFFFFFFFF);
+  }
+
+  for (int64_t i = 0; i < 1000; ++i) {
+    random.create_random_string(res_buf, 21);
+    LIB_LOG(INFO, "res_buf", K(i), K(res_buf));
+    ASSERT_TRUE(20 == strlen(res_buf));
+  }
+}
+
+}  // namespace common
+}  // namespace oceanbase
+
+int main(int argc, char** argv)
+{
+  OB_LOGGER.set_log_level("INFO");
+  testing::InitGoogleTest(&argc, argv);
+  return RUN_ALL_TESTS();
+}