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unittest/sql/engine/expr/ob_expr_sign_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_sign.h"
+#include "ob_expr_test_utils.h"
+
+using namespace oceanbase::common;
+using namespace oceanbase::sql;
+
+class ObExprSignTest : public ::testing::Test {
+  public:
+  ObExprSignTest();
+  virtual ~ObExprSignTest();
+  virtual void SetUp();
+  virtual void TearDown();
+
+  private:
+  // disallow copy
+  ObExprSignTest(const ObExprSignTest& other);
+  ObExprSignTest& operator=(const ObExprSignTest& other);
+
+  private:
+  // data members
+};
+ObExprSignTest::ObExprSignTest()
+{}
+
+ObExprSignTest::~ObExprSignTest()
+{}
+
+void ObExprSignTest::SetUp()
+{}
+
+void ObExprSignTest::TearDown()
+{}
+
+class TestAllocator : public ObIAllocator {
+  public:
+  TestAllocator() : label_(ObModIds::TEST)
+  {}
+  virtual ~TestAllocator()
+  {}
+  void* alloc(const int64_t sz)
+  {
+    UNUSED(sz);
+    return NULL;
+  }
+  void free(void* p)
+  {
+    UNUSED(p);
+  }
+  void freed(const int64_t sz)
+  {
+    UNUSED(sz);
+  }
+  void set_label(const char* label)
+  {
+    label_ = label;
+  };
+
+  private:
+  const char* label_;
+};
+
+#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 TN(obj) EXPECT_NULL1(obj, &buf, calc_result1)
+#define TNI(obj, t1, v1) EXPECT_BUF_NOT_INIT1(obj, &buf, calc_result1, t1, v1)
+
+TEST_F(ObExprSignTest, basic_test)
+{
+  ObExprSign sign;
+  DefaultPageAllocator buf;
+  TestAllocator str_buf;
+  ASSERT_EQ(1, sign.get_param_num());
+
+  // null
+  TN(sign);
+  // test
+  //  T(sign, varchar, "123", int32, 1);
+  //  T(sign, varchar, "-123", int32, -1);
+  //  T(sign, varchar, "0", int32, 0);
+  //  T(sign, int, 123, int32, 1);
+  //  T(sign, int, -123, int32, -1);
+  //  T(sign, int, 0, int32, 0);
+  T(sign, bool, true, int32, 1);
+  T(sign, bool, false, int32, 0);
+  T(sign, double, 123.3, int32, 1);
+  T(sign, double, -123.3, int32, -1);
+  T(sign, double, 0, int32, 0);
+  T(sign, varchar, "999999999999999999999999999", int32, 1);
+  T(sign, varchar, "-999999999999999999999999999", int32, -1);
+}
+
+TEST_F(ObExprSignTest, fail_test)
+{
+  ObExprSign sign;
+  DefaultPageAllocator buf;
+  TestAllocator str_buf;
+  ASSERT_EQ(1, sign.get_param_num());
+
+  // OB_NOT_INIT
+  TNI(sign, int, 123);
+}
+int main(int argc, char** argv)
+{
+  oceanbase::common::ObLogger::get_logger().set_log_level("DEBUG");
+  ::testing::InitGoogleTest(&argc, argv);
+  return RUN_ALL_TESTS();
+}