init push

unittest/sql/engine/expr/ob_expr_trim_test.cpp

@@ -0,0 +1,116 @@
+/**
+ * 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_trim.h"
+#include "ob_expr_test_utils.h"
+
+using namespace oceanbase::common;
+using namespace oceanbase::sql;
+
+class ObExprTrimTest : public ::testing::Test {
+  public:
+  ObExprTrimTest();
+  virtual ~ObExprTrimTest();
+  virtual void SetUp();
+  virtual void TearDown();
+
+  private:
+  // disallow copy
+  ObExprTrimTest(const ObExprTrimTest& other);
+  ObExprTrimTest& operator=(const ObExprTrimTest& other);
+
+  private:
+  // data members
+};
+ObExprTrimTest::ObExprTrimTest()
+{}
+
+ObExprTrimTest::~ObExprTrimTest()
+{}
+
+void ObExprTrimTest::SetUp()
+{}
+
+void ObExprTrimTest::TearDown()
+{}
+
+#define LRTRIM 0
+#define LTRIM 1
+#define RTRIM 2
+#define UNKNOWN_TRIM 3
+
+#define T(obj, t1, v1, t2, v2, t3, v3, ref_type, ref_value) \
+  EXPECT_RESULT3(obj, &buf, calc_result3, t1, v1, t2, v2, t3, v3, ref_type, ref_value)
+#define F(obj, t1, v1, t2, v2, t3, v3, ref_type, ref_value) \
+  EXPECT_FAIL_RESULT3(obj, &buf, calc_result3, t1, v1, t2, v2, t3, v3, ref_type, ref_value)
+
+TEST_F(ObExprTrimTest, basic_test)
+{
+  ObExprTrim trim;
+  ObExprStringBuf buf;
+
+  ASSERT_EQ(3, trim.get_param_num());
+
+  // null
+  T(trim, null, 0, null, 0, null, 0, null, 0);
+  T(trim, int, LRTRIM, null, 0, null, 0, null, 0);
+  T(trim, int, LRTRIM, varchar, "hi", null, 0, null, 0);
+  T(trim, int, LRTRIM, null, 0, varchar, "hi", null, 0);
+  T(trim, int, LRTRIM, min, 0, null, 0, null, 0);
+  T(trim, int, LRTRIM, max, 0, null, 0, null, 0);
+  T(trim, int, LRTRIM, null, 0, max, 0, null, 0);
+  T(trim, int, LRTRIM, null, 0, min, 0, null, 0);
+
+  // normal
+  T(trim, int, LRTRIM, varchar, "a", varchar, "aaabbbaaa", varchar, "bbb");
+  T(trim, int, LRTRIM, varchar, "a", varchar, "abdada", varchar, "bdad");
+  T(trim, int, LRTRIM, varchar, "ab", varchar, "abdada", varchar, "dada");
+  T(trim, int, LRTRIM, varchar, "da", varchar, "abdada", varchar, "ab");
+  T(trim, int, LRTRIM, varchar, "abdadaddddd", varchar, "abdada", varchar, "abdada");
+  T(trim, int, LRTRIM, varchar, "xxxxx", varchar, "abdada", varchar, "abdada");
+  // special case: pattern length = 0
+  T(trim, int, LRTRIM, varchar, "", varchar, "abdada", varchar, "abdada");
+}
+
+TEST_F(ObExprTrimTest, fail_test)
+{
+  ObExprTrim trim;
+  ObExprStringBuf buf;
+
+  ASSERT_EQ(3, trim.get_param_num());
+
+  // promotion
+  F(trim, int, LRTRIM, int, 101010, int, 101010, varchar, "");
+  F(trim, int, LRTRIM, int, 10, varchar, "101010", varchar, "");
+  F(trim, int, LRTRIM, int, 101010, varchar, "101010", varchar, "");
+  F(trim, int, LRTRIM, int, 1, varchar, "101010", varchar, "01010");
+  F(trim, int, LRTRIM, int, 1010100, varchar, "101010", varchar, "101010");
+  F(trim, int, LRTRIM, float, 10.0, varchar, "10.00000000", varchar, "00");  // float have six digit trailing
+
+  F(trim, int, LRTRIM, min, 0, min, 0, varchar, "");
+  F(trim, int, LRTRIM, min, 0, max, 0, max, 0);
+  F(trim, int, LRTRIM, max, 0, min, 0, min, 0);
+  F(trim, int, LRTRIM, max, 0, varchar, "hi", varchar, "hi");
+  F(trim, int, LRTRIM, min, 0, varchar, "hi", varchar, "hi");
+  F(trim, int, LRTRIM, max, 0, int, 12, varchar, "12");
+  F(trim, int, LRTRIM, min, 0, int, 12, varchar, "12");
+  F(trim, int, LRTRIM, int, 10, min, 0, min, 0);
+  F(trim, int, LRTRIM, int, 10, max, 0, max, 0);
+}
+
+int main(int argc, char** argv)
+{
+  oceanbase::common::ObLogger::get_logger().set_log_level("DEBUG");
+  ::testing::InitGoogleTest(&argc, argv);
+  return RUN_ALL_TESTS();
+}