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unittest/sql/engine/expr/ob_expr_length_test.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 "sql/engine/expr/ob_expr_length.h"
+#include "ob_expr_test_utils.h"
+
+using namespace oceanbase::common;
+using namespace oceanbase::sql;
+
+class ObExprLengthTest : public ::testing::Test {
+  public:
+  ObExprLengthTest();
+  virtual ~ObExprLengthTest();
+  virtual void SetUp();
+  virtual void TearDown();
+
+  private:
+  // disallow copy
+  ObExprLengthTest(const ObExprLengthTest& other);
+  ObExprLengthTest& operator=(const ObExprLengthTest& other);
+
+  private:
+  // data members
+};
+ObExprLengthTest::ObExprLengthTest()
+{}
+
+ObExprLengthTest::~ObExprLengthTest()
+{}
+
+void ObExprLengthTest::SetUp()
+{}
+
+void ObExprLengthTest::TearDown()
+{}
+
+#define T(obj, t1, v1, ref_type, ref_value) EXPECT_RESULT1(obj, &buf, calc_result1, t1, v1, ref_type, ref_value)
+#define F(obj, t1, v1) EXPECT_FAIL_RESULT1(obj, &buf, calc_result1, t1, v1)
+#define F0(obj, t1) EXPECT_FAIL_RESULT0(obj, &buf, calc_result1, t1)
+#define T0(obj, t1, ref_type, ref_value) EXPECT_RESULT0(obj, &buf, calc_result1, t1, ref_type, ref_value)
+
+TEST_F(ObExprLengthTest, basic_test)
+{
+  ObArenaAllocator buf(ObModIds::OB_SQL_SESSION);
+  ObExprLength length(buf);
+  ASSERT_EQ(1, length.get_param_num());
+
+  T0(length, null, null, 0);
+  T(length, varchar, "helo", int, 4);
+  T(length, varchar, "", int, 0);
+  T(length, int, 1, int, 1);
+  T(length, int, 12, int, 2);
+  T(length, varchar, "好", int, 3);
+}
+
+TEST_F(ObExprLengthTest, fail_test)
+{
+  ObArenaAllocator buf(ObModIds::OB_SQL_SESSION);
+  ObExprLength length(buf);
+  ASSERT_EQ(1, length.get_param_num());
+}
+
+int main(int argc, char** argv)
+{
+  oceanbase::common::ObLogger::get_logger().set_log_level("DEBUG");
+  ::testing::InitGoogleTest(&argc, argv);
+  return RUN_ALL_TESTS();
+}