77 lines
2.9 KiB
C++
77 lines
2.9 KiB
C++
/* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL hereby grant you an additional
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permission to link the program and your derivative works with the
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separately licensed software that they have included with MySQL.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License, version 2.0, for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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#ifndef MOCK_FIELD_VARSTRING_INCLUDED
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#define MOCK_FIELD_VARSTRING_INCLUDED
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#include <vector>
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#include "sql/field.h"
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/** Helper to simplify creating fields. */
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class Mock_field_varstring : public Field_varstring {
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public:
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/**
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Creates a column.
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@param share TABLE_SHARE this field belongs to.
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@param name The column name.
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@param char_len Length in chars
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@param is_nullable Whether it's nullable.
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*/
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Mock_field_varstring(TABLE_SHARE *share, const char *name, uint char_len,
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bool is_nullable)
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: Field_varstring(nullptr, // ptr_arg
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calc_len_arg(char_len), // len_arg
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calc_length_bytes_arg(char_len), // length_bytes_arg
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is_nullable ? &null_byte : NULL, // null_ptr_arg
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is_nullable ? 1 : 0, // null_bit_arg
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Field::NONE, // auto_flags_arg
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name, // field_name_arg
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share, // share
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&my_charset_utf8mb4_general_ci) // cs
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{
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buffer.assign(pack_length(), 0);
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ptr = buffer.data();
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static const char *table_name_buf = "table_name";
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table_name = &table_name_buf;
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}
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private:
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std::vector<uchar> buffer;
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uchar null_byte = '\0';
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static uint calc_byte_len(uint char_len) {
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return char_len * my_charset_utf8mb4_general_ci.mbmaxlen;
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}
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static uint32 calc_len_arg(uint char_len) {
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return calc_byte_len(char_len) + calc_length_bytes_arg(char_len);
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}
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static uint calc_length_bytes_arg(uint char_len) {
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return (calc_byte_len(char_len) < 256) ? 1 : 2;
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}
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};
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#endif // MOCK_FIELD_VARSTRING_INCLUDED
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