357 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			357 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/**
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 * Copyright (c) 2021 OceanBase
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 * OceanBase CE is licensed under Mulan PubL v2.
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 * You can use this software according to the terms and conditions of the Mulan PubL v2.
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 * You may obtain a copy of Mulan PubL v2 at:
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 *          http://license.coscl.org.cn/MulanPubL-2.0
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 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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 * See the Mulan PubL v2 for more details.
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 */
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#define UNUSED(param) (void)param
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#include <cstdint>
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#include <cstdlib>
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#include <cstdio>
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#include <cassert>
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#include <cstring>
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#include <fstream>
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#include <iterator>
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#include <iostream>
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#include <gtest/gtest.h>
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#include "sql/parser/ob_sql_parser.h"
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#include "sql/parser/parse_malloc.h"
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#include "sql/parser/parser_proxy_func.h"
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extern "C" {
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extern void right_to_die_or_duty_to_live_c()
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{
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  while (1) {
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    sleep(120);
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  }
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}
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}
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using namespace oceanbase::common;
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using std::cout;
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using std::endl;
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// must implement following four functions.
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void* parser_alloc_buffer(void* malloc_pool, const int64_t buff_size)
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{
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  UNUSED(malloc_pool);
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  return std::malloc(buff_size);
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}
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void parser_free_buffer(void* malloc_pool, void* buffer)
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{
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  UNUSED(malloc_pool);
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  std::free(buffer);
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}
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extern "C" {
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int check_stack_overflow_in_c(int* check_overflow)
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{
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  *check_overflow = 0;
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  return 0;
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}
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bool check_stack_overflow_c()
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{
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  return 0;
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}
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}
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using namespace oceanbase::sql;
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using namespace oceanbase::common;
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void is_equal_content(const char* tmp_file, const char* result_file, bool is_record = false)
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{
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  std::ifstream if_test(tmp_file);
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  if_test.is_open();
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  EXPECT_EQ(true, if_test.is_open());
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  std::istream_iterator<std::string> it_test(if_test);
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  std::ifstream if_expected(result_file);
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  if_expected.is_open();
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  EXPECT_EQ(true, if_expected.is_open());
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  std::istream_iterator<std::string> it_expected(if_expected);
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  bool is_equal = std::equal(it_test, std::istream_iterator<std::string>(), it_expected);
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  if (is_equal) {
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    std::remove(tmp_file);
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  } else if (is_record) {
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    fprintf(stdout, "The result files mismatched, you can choose to\n");
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    fprintf(stdout, "emacs -q %s %s\n", result_file, tmp_file);
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    fprintf(stdout, "diff -u %s %s\n", result_file, tmp_file);
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    fprintf(stdout, "mv %s %s\n", tmp_file, result_file);
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    std::rename(tmp_file, result_file);
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  } else {
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    fprintf(stdout, "The result files mismatched, you can choose to\n");
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    fprintf(stdout, "diff -u %s %s\n", tmp_file, result_file);
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  }
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  EXPECT_EQ(true, is_equal);
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}
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void print_result_tree(ParseNode* root, const int level, std::ostream& of)
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{
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  for (int i = 0; i < level * 2; i++) {
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    of << "-";
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  }
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  of << get_type_name(root->type_);
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  if (NULL == root->str_value_) {
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    of << " (null)";
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  } else {
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    of << " (" << root->str_value_ << ")";
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  }
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  of << " off: " << root->token_off_;
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  of << " len: " << root->token_len_ << endl;
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  for (int i = 0; i < root->num_child_; i++) {
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    if (NULL == root->children_[i]) {
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      // do nothing
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    } else {
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      print_result_tree(root->children_[i], level + 1, of);
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    }
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  }
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}
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void print_comment_list(ParseResult* p, std::ostream& of)
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{
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  for (int i = 0; i < p->comment_cnt_; ++i) {
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    of << "i: " << i;
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    of << ", off: " << p->comment_list_[i].token_off_;
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    of << ", len: " << p->comment_list_[i].token_len_;
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    of << endl;
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  }
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}
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class TestFastSqlParser : public ::testing::Test {
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  virtual void SetUp()
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  {}
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  virtual void TearDown()
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  {}
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};
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void test_fast_parser()
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{
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  ParseResult parse_result;
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  int tmp_ptr = 1;
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  memset(&parse_result, 0, sizeof(parse_result));
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  parse_result.is_fp_ = true;
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  parse_result.is_multi_query_ = false;
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  // for parser_malloc's inner check. Normally, malloc_pool cannot be empty.
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  parse_result.malloc_pool_ = &tmp_ptr;
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  parse_result.is_ignore_hint_ = false;
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  parse_result.need_parameterize_ = true;
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  parse_result.pl_parse_info_.is_pl_parse_ = false;
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  parse_result.minus_ctx_.has_minus_ = false;
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  parse_result.minus_ctx_.pos_ = -1;
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  parse_result.minus_ctx_.raw_sql_offset_ = -1;
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  parse_result.is_for_trigger_ = false;
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  parse_result.is_dynamic_sql_ = false;
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  parse_result.is_batched_multi_enabled_split_ = false;
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  char input_sql[1024];
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  const int64_t test_sql_cnt = 10;
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  const char* test_sqls[test_sql_cnt] = {"select 1",
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      "select 2.2345;",
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      "select a from t where a = 'hello' and b = 3;",
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      "select a from t where a = 1 and b = 'hello';",
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      "select t1.a from t1 join t2 where b = udf_func(3) and c = 'hello';",
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      "select t2.a from t1 join t2 where b = udf_func(3) and c = 'hello';",
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      "select * from t;",
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      "select  * from t;",
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      "select t1.a from t1 join t2 where b = udf_func(3) and c = 'hello';",
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      "select t1.a from t1 join t2 where b = udf_func(3.1231232) and c = "
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      "'hello';"};
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  const char* expected_sql_ids[test_sql_cnt] = {
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      "1FE1379FE2A31B8D16219655761820A2",
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      "99B8023929C1482A458CB071ADE822AC",
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      "ADFDC18C98D0A001EF337A9EAB18CAD8",
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      "ADFDC18C98D0A001EF337A9EAB18CAD8",
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      "27B601C30CABBDF94C0117EF53236D45",
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      "6C3F77365F581EC95803ED167CD82046",
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      "99C43C457B0C8E5AA6666E89C80DC5CE",
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      "0FD2573F48AA6C8DF7C3C71028CAFC81",
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      "27B601C30CABBDF94C0117EF53236D45",
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      "27B601C30CABBDF94C0117EF53236D45",
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  };
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  for (int i = 0; i < test_sql_cnt; i++) {
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    const char* input_sql = test_sqls[i];
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    int64_t new_length = std::strlen(input_sql) + 1;
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    char* buf = (char*)parse_malloc(new_length, parse_result.malloc_pool_);
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    parse_result.param_nodes_ = NULL;
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    parse_result.tail_param_node_ = NULL;
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    parse_result.no_param_sql_ = buf;
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    parse_result.no_param_sql_buf_len_ = new_length;
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    const int64_t SQL_ID_LENGTH = 32;
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    ObSQLParser sql_parser(*(ObIAllocator*)(parse_result.malloc_pool_), FP_MODE);
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    char sql_id[SQL_ID_LENGTH + 1];
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    int ret = sql_parser.parse_and_gen_sqlid(&tmp_ptr, input_sql, std::strlen(input_sql), sizeof(sql_id), sql_id);
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    sql_id[SQL_ID_LENGTH] = '\0';
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    ASSERT_EQ(0, std::strncmp(sql_id, expected_sql_ids[i], strlen(expected_sql_ids[i])));
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  }
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}
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void test_sql_parser()
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{
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  ParseResult parse_result;
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  int tmp_ptr = 1;
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  memset(&parse_result, 0, sizeof(parse_result));
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  parse_result.sql_mode_ = DEFAULT_MYSQL_MODE;
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  parse_result.is_fp_ = false;
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  parse_result.is_multi_query_ = false;
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  // for parser_malloc's inner check. Normally, malloc_pool cannot be empty.
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  parse_result.malloc_pool_ = &tmp_ptr;
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  parse_result.is_ignore_hint_ = false;
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  parse_result.need_parameterize_ = true;
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  parse_result.pl_parse_info_.is_pl_parse_ = false;
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  parse_result.minus_ctx_.has_minus_ = false;
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  parse_result.minus_ctx_.pos_ = -1;
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  parse_result.minus_ctx_.raw_sql_offset_ = -1;
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  parse_result.is_for_trigger_ = false;
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  parse_result.is_dynamic_sql_ = false;
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  parse_result.is_batched_multi_enabled_split_ = false;
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  const int64_t test_sql_cnt = 10;
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  const char* test_sqls[test_sql_cnt] = {"select 1",
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      "select 2.2345;",
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      "select a from t where a = 'hello' and b = 3;",
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      "select a from t where a = 1 and b = 'hello';",
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      "select t1.a from t1 join t2 where b = udf_func(3) and c = 'hello';",
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      "select t2.a from t1 join t2 where b = udf_func(3) and c = 'hello';",
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      "select * from t;",
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      "select  * from t;",
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      "select t1.a from t1 join t2 where b = udf_func(3) and c = 'hello';",
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      "select t1.a from t1 join t2 where b = udf_func(3.1231232) and c = "
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      "'hello';"};
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  for (int i = 0; i < test_sql_cnt; i++) {
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    const char* input_sql = test_sqls[i];
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    int64_t new_length = std::strlen(input_sql) + 1;
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    char* buf = (char*)parse_malloc(new_length, parse_result.malloc_pool_);
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    parse_result.param_nodes_ = NULL;
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    parse_result.tail_param_node_ = NULL;
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    parse_result.no_param_sql_ = buf;
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    parse_result.no_param_sql_buf_len_ = new_length;
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    ObSQLParser sql_parser(*(ObIAllocator*)(parse_result.malloc_pool_), parse_result.sql_mode_);
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    int ret = sql_parser.parse(input_sql, std::strlen(input_sql), parse_result);
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    ASSERT_TRUE(NULL != parse_result.result_tree_);
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  }
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}
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void setup_parse_result(ParseResult& parse_result, int& tmp_ptr)
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{
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  memset(&parse_result, 0, sizeof(parse_result));
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  parse_result.sql_mode_ = DEFAULT_MYSQL_MODE;
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  parse_result.is_fp_ = false;
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  parse_result.is_multi_query_ = false;
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  // for parser_malloc's inner check. Normally, malloc_pool cannot be empty.
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  parse_result.malloc_pool_ = &tmp_ptr;
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  parse_result.is_ignore_hint_ = false;
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  parse_result.need_parameterize_ = true;
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  parse_result.pl_parse_info_.is_pl_parse_ = false;
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  parse_result.minus_ctx_.has_minus_ = false;
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  parse_result.minus_ctx_.pos_ = -1;
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  parse_result.minus_ctx_.raw_sql_offset_ = -1;
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  parse_result.is_for_trigger_ = false;
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  parse_result.is_dynamic_sql_ = false;
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  parse_result.is_batched_multi_enabled_split_ = false;
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  parse_result.realloc_cnt_ = 10;
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}
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void start_test_token_offset(const char* test_sqls[], int test_sql_cnt, uint64_t sql_mode, std::ostream& of)
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{
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  for (int64_t i = 0; i < test_sql_cnt; ++i) {
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    ParseResult parse_result;
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    int tmp_ptr = 1;
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    setup_parse_result(parse_result, tmp_ptr);
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    parse_result.sql_mode_ = sql_mode;
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    const char* input_sql = test_sqls[i];
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    ObSQLParser sql_parser(*(ObIAllocator*)(parse_result.malloc_pool_), parse_result.sql_mode_);
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    int ret = sql_parser.parse(input_sql, std::strlen(input_sql), parse_result);
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    of << input_sql << endl;
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    ASSERT_TRUE(NULL != parse_result.result_tree_);
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    print_result_tree(parse_result.result_tree_, 0, of);
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    print_comment_list(&parse_result, of);
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  }
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}
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void test_token_pos()
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{
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  const char* test_sqls_mysql[] = {
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      // test hint and comment
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      "/*+ c1 */ /* c2 */ select /* ignored */ /*+ no_rewrite, index(t1 primary)    */ /* ignored  */ c1 from t1;",
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      // test sys fun / add minus... / order by
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      "select * from t1 where c1 = c2+1*2/3-4 order by c1 + 2 limit 1;",
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      "select * from t1 where c1 = c2+1*2/3-4 order by c1 + 2 limit 1 offset 1;",
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      "select /*+ index(t1.c1 primary) */* from t1 where `name` = 'abc';",
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      "select /*+ index(t1.name primary) */* from t1 where `c1` = 'abc';",
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  };
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  const char* test_sqls_oracle[] = {
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      // test hint and comment
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      "/*+ c1 */ /* c2 */ select /* ignored */ /*+ no_rewrite, index(t1 primary)    */ /* ignored  */ c1 from t1;",
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      // test sys fun / add minus... / order by
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      "select * from t1 where c1 = c2+1*2/3-4 and rownum < 1 order by c1 + 2;",
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      "select * from t1 where c1 = c2+1*2/3-4 and rownum < 1+1 order by c1 + 2;",
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      "select /*+ index(t1.c1 primary) */* from t1 where \"name\" = 'abc';",
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      "select /*+ index(t1.name primary) */* from t1 where \"c1\" = 'abc';",
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  };
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  const char* res_file = "./test_sql_fast_parser.result";
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  const char* tmp_file = "./test_sql_fast_parser.tmp";
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  bool generate_res_file = false;
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  if (generate_res_file) {
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    std::ofstream res_of(res_file);
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    std::ofstream tmp_of(tmp_file);
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    ASSERT_TRUE(res_of.is_open());
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    ASSERT_TRUE(tmp_of.is_open());
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    tmp_of << "MySQL mode: \n";
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    start_test_token_offset(test_sqls_mysql, sizeof(test_sqls_mysql) / sizeof(char*), DEFAULT_MYSQL_MODE, tmp_of);
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    tmp_of << "Oracle mode: \n";
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    start_test_token_offset(
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        test_sqls_oracle, sizeof(test_sqls_oracle) / sizeof(char*), DEFAULT_ORACLE_MODE | SMO_ORACLE, tmp_of);
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    res_of.close();
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    tmp_of.close();
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    is_equal_content(tmp_file, res_file, generate_res_file);
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  } else {
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    std::ofstream tmp_of(tmp_file);
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    ASSERT_TRUE(tmp_of.is_open());
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    tmp_of << "MySQL mode: \n";
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    start_test_token_offset(test_sqls_mysql, sizeof(test_sqls_mysql) / sizeof(char*), DEFAULT_MYSQL_MODE, tmp_of);
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    tmp_of << "Oracle mode: \n";
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    start_test_token_offset(
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        test_sqls_oracle, sizeof(test_sqls_oracle) / sizeof(char*), DEFAULT_ORACLE_MODE | SMO_ORACLE, tmp_of);
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    tmp_of.close();
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    is_equal_content(tmp_file, res_file, generate_res_file);
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  }
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}
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TEST_F(TestFastSqlParser, linker_test)
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{
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  test_sql_parser();
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  test_fast_parser();
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  test_token_pos();
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}
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int main(int argc, char** argv)
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{
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  ::testing::InitGoogleTest(&argc, argv);
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  return RUN_ALL_TESTS();
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}
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