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/* Copyright (C) 2003 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
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 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/**********************************************************************************
test_compiler.cpp
Tests the code tree generated
by the compiler
***********************************************************************************/
#include <stdio.h>
#include <memory.h>
#include "SQL_compiler.hpp"
#include "SQL_code_tree.hpp"
typedef struct stSTMT_REF_tag {
char* szTestStmt ;
SQL_compiler* pC ;
SQL_code_tree* pRefTree ;
int nFlag ; /* indicate if the struct haa a code tree and compiler and should be processed */
} stSTMT_REF ;
int compare_trees(SQL_code_tree* pCompilerOutput, SQL_code_tree* pReference) ;
/* Assign statements to szTestStmt and NULL to pTestRef */
static stSTMT_REF stTestRef[] = {
/* 0 */ {"create table foo (pk integer primary key, a integer, b varchar(20), check (a is not null))", NULL, NULL, 0},
/* 1 */ {"insert into foo (pk, a, b) values (1, 10, 'ett')", NULL, NULL, 0},
/* 2 */ {"insert into foo values (2, 20)", NULL, NULL, 0},
/* 3 */ {"delete from foo", NULL, NULL, 1},
/* 4 */ {"delete from foo where pk=5", NULL, NULL, 0},
/* 5 */ {"delete from foo where a<10 or b='test'", NULL, NULL, 0},
/* 6 */ {"update foo set a=100, b=null", NULL, NULL, 0},
/* 7 */ {"update foo set a=0 where pk=1", NULL, NULL, 0},
/* 8 */ {"update foo set a=a+pk where b is null", NULL, NULL, 0},
/* 9 */ {"select * from foo", NULL, NULL, 0},
/* 10 */ {"select pk, a, b from foo where pk=1", NULL, NULL, 0},
/* 11 */ {"select * from foo order by a", NULL, NULL, 0},
/* 12 */ {"select * from foo A, foo B where A.pk=B.a and A.a<2*B.a", NULL, NULL, 0}
} ;
int main(int argc, char* argv[]){
int retcode = 0 ;
int nTests = sizeof(stTestRef)/sizeof(stSTMT_REF) ;
for(int c = 0 ; c < nTests ; c++) {
if(stTestRef[c].nFlag){
stTestRef[c].pC = new SQL_compiler() ;
stTestRef[c].pRefTree = new SQL_code_tree() ;
}
}
/* Create reference code trees */
/*
Statement: 0 "create table foo (pk integer primary key, a integer, b varchar(20), check (a is not null))"
*/
/*
Statement: 1
*/
/*
Statement: 2
*/
/*
Statement: 3 "delete from foo"
*/
stTestRef[3].pRefTree->shift('N') ;
stTestRef[3].pRefTree->shift('D') ;
stTestRef[3].pRefTree->shift('B') ;
stTestRef[3].pRefTree->reduce(0x2050400e, 3) ;
stTestRef[3].pRefTree->shift('F') ;
stTestRef[3].pRefTree->shift('O') ;
stTestRef[3].pRefTree->shift('O') ;
stTestRef[3].pRefTree->reduce(0x20502003, 3) ;
stTestRef[3].pRefTree->reduce(0x2050400f, 1) ;
stTestRef[3].pRefTree->reduce(0x20504007, 2) ;
stTestRef[3].pRefTree->reduce(0x21407003, 1) ;
stTestRef[3].pRefTree->shift(0x205021ca) ;
stTestRef[3].pRefTree->reduce(0x20630001, 1) ;
stTestRef[3].pRefTree->reduce(0x20815001, 1) ;
stTestRef[3].pRefTree->shift(0x21407002) ;
stTestRef[3].pRefTree->reduce(0x21407004, 3) ;
stTestRef[3].pRefTree->shift(0x21407002) ;
stTestRef[3].pRefTree->reduce(0x21407005, 1) ;
stTestRef[3].pRefTree->shift(0x21414001) ;
stTestRef[3].pRefTree->shift(0x21414002) ;
stTestRef[3].pRefTree->reduce(0x21407001, 4) ;
stTestRef[3].pRefTree->reduce(0x51506004, 1) ;
stTestRef[3].pRefTree->reduce(0x51506003, 1) ;
/*
Statement: 4
*/
/*
Statement: 5
*/
/*
Statement: 6
*/
/*
Statement: 7
*/
/*
Statement: 8
*/
/*
Statement: 9
*/
/*
Statement: 10
*/
/*
Statement: 11
*/
/*
Statement: 12
*/
for(int i = 0 ; i < nTests ; i++){
/* Check to see if the statement has an associated code tree and compiler */
if(stTestRef[i].nFlag){
stTestRef[i].pC->prepare( stTestRef[i].szTestStmt, strlen(stTestRef[i].szTestStmt)) ;
if( 0 != compare_trees(&stTestRef[i].pC->m_code_tree, stTestRef[i].pRefTree) ){
printf("\nCompiler generated tree for statement #%d: \"%s\"\ndeviates from its reference\n", i, stTestRef[i].szTestStmt) ;
retcode = -1 ;
break ;
}else{
printf("\nTrees for statement #%d: \"%s\" match nicely -- OK\n", i, stTestRef[i].szTestStmt) ;
retcode = 0 ;
}
}
}
for(int d = 0 ; d < nTests ; d++) {
if(stTestRef[d].nFlag){
delete stTestRef[d].pC ;
delete stTestRef[d].pRefTree ;
}
}
return retcode ;
}
int compare_trees(SQL_code_tree* pCompilerOutput, SQL_code_tree* pReference){
int nTop = -1 ;
if(pCompilerOutput->top()== pReference->top()){
nTop = pReference->top() ;
}else{
printf("\npCompilerOutput->top() = %d;\tpReference->top() = %d\n", pCompilerOutput->top(), pReference->top()) ;
return -1 ;
}
pCompilerOutput->beginPostfix() ;
pReference->beginPostfix() ;
for(int r = 0 ; r < nTop ; r++){
if(pCompilerOutput->symbol() != pReference->symbol()){
printf("Deviation found in position %d\n", r) ;
printf("pCompilerOutput->symbol() = 0x%X;\tpReference->symbol() = 0x%X\n", pCompilerOutput->symbol(), pReference->symbol()) ;
return -1 ;
}else{
pCompilerOutput->nextPostfix() ;
pReference->nextPostfix() ;
}
}
return 0 ;
}
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