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/* Copyright (c) 2018, 2025, Oracle and/or its affiliates.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License, version 2.0,
as published by the Free Software Foundation.
This program is designed to work with certain software (including
but not limited to OpenSSL) that is licensed under separate terms,
as designated in a particular file or component or in included license
documentation. The authors of MySQL hereby grant you an additional
permission to link the program and your derivative works with the
separately licensed software that they have either included with
the program or referenced in the documentation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License, version 2.0, for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
#ifndef MOCK_FIELD_VARSTRING_INCLUDED
#define MOCK_FIELD_VARSTRING_INCLUDED
#include <vector>
#include "sql/field.h"
/** Helper to simplify creating fields. */
class Mock_field_varstring : public Field_varstring {
public:
/**
Creates a column.
@param share TABLE_SHARE this field belongs to.
@param name The column name.
@param char_len Length in chars
@param is_nullable Whether it's nullable.
*/
Mock_field_varstring(TABLE_SHARE *share, const char *name, uint char_len,
bool is_nullable)
: Field_varstring(nullptr, // ptr_arg
calc_len_arg(char_len), // len_arg
calc_length_bytes_arg(char_len), // length_bytes_arg
is_nullable ? buffer : nullptr, // null_ptr_arg
is_nullable ? 1 : 0, // null_bit_arg
Field::NONE, // auto_flags_arg
name, // field_name_arg
share, // share
&my_charset_utf8mb4_general_ci) // cs
{
ptr = buffer + 1;
std::memset(buffer, 0, MAX_FIELD_VARCHARLENGTH + 1);
static const char *table_name_buf = "table_name";
table_name = &table_name_buf;
}
private:
uchar buffer[MAX_FIELD_VARCHARLENGTH + 1];
static uint calc_byte_len(uint char_len) {
return char_len * my_charset_utf8mb4_general_ci.mbmaxlen;
}
static uint32 calc_len_arg(uint char_len) {
return calc_byte_len(char_len) + calc_length_bytes_arg(char_len);
}
static uint calc_length_bytes_arg(uint char_len) {
return (calc_byte_len(char_len) < 256) ? 1 : 2;
}
};
#endif // MOCK_FIELD_VARSTRING_INCLUDED
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