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deps/oblib/unittest/lib/string/test_fixed_length_string.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.
+ */
+
+#define USING_LOG_PREFIX LIB
+
+#include <gtest/gtest.h>
+
+#include "lib/ob_define.h"
+#include "lib/string/ob_fixed_length_string.h"
+
+namespace oceanbase {
+namespace common {
+TEST(TestFixedLengthString, common)
+{
+  // construct functions
+  typedef ObFixedLengthString<32> TestString;
+  TestString str;
+  TestString str1("test");
+  TestString str2 = str1;
+  ASSERT_EQ(str1, str2);
+  ASSERT_NE(str, str1);
+  str = str1;
+  ASSERT_EQ(str, str1);
+
+  // compare functions
+  TestString str3("test3");
+  TestString str4("test4");
+  ASSERT_TRUE(str3 < str4);
+  ASSERT_TRUE(str4 > str3);
+  ASSERT_TRUE(str3 != str4);
+  ASSERT_FALSE(str3.is_empty());
+  TestString str5;
+  ASSERT_TRUE(str5.is_empty());
+
+  // length
+  ASSERT_EQ(5, str3.size());
+  ASSERT_EQ(0, strcmp("test3", str3.ptr()));
+}
+
+TEST(TestFixedLengthString, error)
+{
+  typedef ObFixedLengthString<16> TestString;
+  // paramenter is null
+  TestString null_str(NULL);
+  ASSERT_TRUE(null_str.is_empty());
+  TestString str1("test");
+  TestString str2("test");
+  ASSERT_EQ(OB_SUCCESS, str1.assign(NULL));
+  ASSERT_EQ(str1, null_str);
+
+  // overflow
+  TestString str3;
+  ASSERT_EQ(OB_BUF_NOT_ENOUGH, str3.assign("oceanbase is a distributed database"));
+  ASSERT_EQ(0, strcmp("oceanbase is a ", str3.ptr()));
+
+  // to_string
+  LIB_LOG(INFO, "for test", K(null_str), K(str1), K(str2), K(str3));
+
+  // serialize and deserialize
+  char buf[32];
+  int64_t data_len = str3.get_serialize_size();
+  int64_t pos = 0;
+  ASSERT_EQ(OB_SUCCESS, str3.serialize(buf, sizeof(buf), pos));
+  ASSERT_EQ(data_len, pos);
+  TestString str4;
+  pos = 0;
+  ASSERT_EQ(OB_SUCCESS, str4.deserialize(buf, data_len, pos));
+  ASSERT_EQ(data_len, pos);
+  ASSERT_EQ(str3, str4);
+}
+}  // end namespace common
+}  // end namespace oceanbase
+
+int main(int argc, char** argv)
+{
+  oceanbase::common::ObLogger::get_logger().set_log_level("INFO");
+  ::testing::InitGoogleTest(&argc, argv);
+  return RUN_ALL_TESTS();
+}