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#include "sqliteInt.h"
#include "unity.h"
#include <stdlib.h>
#include <string.h>
/* Wrapper for the static function under test (provided by the build) */
extern void test_renameWalkTrigger(Walker *pWalker, Trigger *pTrigger);
/* Global counters/state for callbacks */
typedef struct CallbackState {
/* Totals */
int nExprCalls;
int nSelectCalls;
/* Specific node hits */
int hitWhen;
int hitWhere;
int hitList1;
int hitList2;
int hitUpTarget1;
int hitUpSet1;
int hitUpWhere;
int hitUpTargetWhere;
int hitSel1;
int hitSel2;
/* Unexpected nodes */
int unexpectedExpr;
int unexpectedSelect;
/* Expected node pointers */
Expr *pWhen;
Expr *pWhere;
Expr *pList1;
Expr *pList2;
Expr *pUpTarget1;
Expr *pUpSet1;
Expr *pUpWhere;
Expr *pUpTargetWhere;
Select *pSel1;
Select *pSel2;
} CallbackState;
static CallbackState gCb;
/* Walker callbacks */
static int testExprCallback(Walker *pWalker, Expr *pExpr){
(void)pWalker;
gCb.nExprCalls++;
if( pExpr==gCb.pWhen ) gCb.hitWhen++;
else if( pExpr==gCb.pWhere ) gCb.hitWhere++;
else if( pExpr==gCb.pList1 ) gCb.hitList1++;
else if( pExpr==gCb.pList2 ) gCb.hitList2++;
else if( pExpr==gCb.pUpTarget1 ) gCb.hitUpTarget1++;
else if( pExpr==gCb.pUpSet1 ) gCb.hitUpSet1++;
else if( pExpr==gCb.pUpWhere ) gCb.hitUpWhere++;
else if( pExpr==gCb.pUpTargetWhere ) gCb.hitUpTargetWhere++;
else gCb.unexpectedExpr++;
return WRC_Continue;
}
static int testSelectCallback(Walker *pWalker, Select *pSelect){
(void)pWalker;
gCb.nSelectCalls++;
if( pSelect==gCb.pSel1 ) gCb.hitSel1++;
else if( pSelect==gCb.pSel2 ) gCb.hitSel2++;
else gCb.unexpectedSelect++;
return WRC_Continue;
}
/* Helpers to create minimal nodes */
static Expr *mkLeafExpr(void){
Expr *p = (Expr*)sqlite3_malloc(sizeof(Expr));
TEST_ASSERT_NOT_NULL_MESSAGE(p, "sqlite3_malloc Expr failed");
memset(p, 0, sizeof(Expr));
p->op = TK_NULL; /* A safe leaf opcode */
return p;
}
static Select *mkEmptySelect(void){
Select *p = (Select*)sqlite3_malloc(sizeof(Select));
TEST_ASSERT_NOT_NULL_MESSAGE(p, "sqlite3_malloc Select failed");
memset(p, 0, sizeof(Select));
return p;
}
static ExprList *mkExprList1(Expr *e1){
ExprList *p = (ExprList*)sqlite3_malloc(sizeof(ExprList));
TEST_ASSERT_NOT_NULL_MESSAGE(p, "sqlite3_malloc ExprList failed");
memset(p, 0, sizeof(ExprList));
p->nExpr = 1;
p->nAlloc = 1;
p->a = (ExprList_item*)sqlite3_malloc(sizeof(ExprList_item) * 1);
TEST_ASSERT_NOT_NULL_MESSAGE(p->a, "sqlite3_malloc ExprList_item[1] failed");
memset(p->a, 0, sizeof(ExprList_item) * 1);
p->a[0].pExpr = e1;
return p;
}
static ExprList *mkExprList2(Expr *e1, Expr *e2){
ExprList *p = (ExprList*)sqlite3_malloc(sizeof(ExprList));
TEST_ASSERT_NOT_NULL_MESSAGE(p, "sqlite3_malloc ExprList failed");
memset(p, 0, sizeof(ExprList));
p->nExpr = 2;
p->nAlloc = 2;
p->a = (ExprList_item*)sqlite3_malloc(sizeof(ExprList_item) * 2);
TEST_ASSERT_NOT_NULL_MESSAGE(p->a, "sqlite3_malloc ExprList_item[2] failed");
memset(p->a, 0, sizeof(ExprList_item) * 2);
p->a[0].pExpr = e1;
p->a[1].pExpr = e2;
return p;
}
static void freeExprList(ExprList *p){
if( p ){
sqlite3_free(p->a);
sqlite3_free(p);
}
}
/* Unity fixtures */
void setUp(void){
memset(&gCb, 0, sizeof(gCb));
}
void tearDown(void){
/* Nothing global to cleanup */
}
/* Test: No fields set => no callbacks */
void test_renameWalkTrigger_nulls(void){
Trigger *tr = (Trigger*)sqlite3_malloc(sizeof(Trigger));
TEST_ASSERT_NOT_NULL(tr);
memset(tr, 0, sizeof(Trigger));
Walker w;
memset(&w, 0, sizeof(w));
w.xExprCallback = testExprCallback;
w.xSelectCallback = testSelectCallback;
test_renameWalkTrigger(&w, tr);
TEST_ASSERT_EQUAL_INT(0, gCb.nExprCalls);
TEST_ASSERT_EQUAL_INT(0, gCb.nSelectCalls);
TEST_ASSERT_EQUAL_INT(0, gCb.unexpectedExpr);
TEST_ASSERT_EQUAL_INT(0, gCb.unexpectedSelect);
sqlite3_free(tr);
}
/* Test: WHEN, SELECT, WHERE, and ExprList are all visited */
void test_renameWalkTrigger_basic_fields(void){
/* Build nodes */
Expr *eWhen = mkLeafExpr();
Expr *eWhere = mkLeafExpr();
Expr *eList1 = mkLeafExpr();
Expr *eList2 = mkLeafExpr();
ExprList *pList = mkExprList2(eList1, eList2);
Select *pSel = mkEmptySelect();
/* Build step */
TriggerStep *st = (TriggerStep*)sqlite3_malloc(sizeof(TriggerStep));
TEST_ASSERT_NOT_NULL(st);
memset(st, 0, sizeof(TriggerStep));
st->pSelect = pSel;
st->pWhere = eWhere;
st->pExprList = pList;
/* Build trigger */
Trigger *tr = (Trigger*)sqlite3_malloc(sizeof(Trigger));
TEST_ASSERT_NOT_NULL(tr);
memset(tr, 0, sizeof(Trigger));
tr->pWhen = eWhen;
tr->step_list = st;
/* Set expected pointers */
gCb.pWhen = eWhen;
gCb.pWhere = eWhere;
gCb.pList1 = eList1;
gCb.pList2 = eList2;
gCb.pSel1 = pSel;
Walker w;
memset(&w, 0, sizeof(w));
w.xExprCallback = testExprCallback;
w.xSelectCallback = testSelectCallback;
test_renameWalkTrigger(&w, tr);
/* Expect: 1 WHEN + 1 WHERE + 2 list exprs = 4 expr callbacks */
TEST_ASSERT_EQUAL_INT(4, gCb.nExprCalls);
TEST_ASSERT_EQUAL_INT(1, gCb.nSelectCalls);
TEST_ASSERT_EQUAL_INT(1, gCb.hitWhen);
TEST_ASSERT_EQUAL_INT(1, gCb.hitWhere);
TEST_ASSERT_EQUAL_INT(1, gCb.hitList1);
TEST_ASSERT_EQUAL_INT(1, gCb.hitList2);
TEST_ASSERT_EQUAL_INT(1, gCb.hitSel1);
TEST_ASSERT_EQUAL_INT(0, gCb.unexpectedExpr);
TEST_ASSERT_EQUAL_INT(0, gCb.unexpectedSelect);
/* Cleanup */
sqlite3_free(eWhen);
sqlite3_free(eWhere);
sqlite3_free(eList1);
sqlite3_free(eList2);
freeExprList(pList);
sqlite3_free(pSel);
sqlite3_free(st);
sqlite3_free(tr);
}
/* Test: Upsert-related fields are visited */
void test_renameWalkTrigger_upsert_fields(void){
/* Build upsert components */
Expr *eUpTarget1 = mkLeafExpr();
Expr *eUpSet1 = mkLeafExpr();
Expr *eUpWhere = mkLeafExpr();
Expr *eUpTargetWhere = mkLeafExpr();
ExprList *pTarget = mkExprList1(eUpTarget1);
ExprList *pSet = mkExprList1(eUpSet1);
Upsert *pUp = (Upsert*)sqlite3_malloc(sizeof(Upsert));
TEST_ASSERT_NOT_NULL(pUp);
memset(pUp, 0, sizeof(Upsert));
pUp->pUpsertTarget = pTarget;
pUp->pUpsertSet = pSet;
pUp->pUpsertWhere = eUpWhere;
pUp->pUpsertTargetWhere = eUpTargetWhere;
/* Step with only Upsert */
TriggerStep *st = (TriggerStep*)sqlite3_malloc(sizeof(TriggerStep));
TEST_ASSERT_NOT_NULL(st);
memset(st, 0, sizeof(TriggerStep));
st->pUpsert = pUp;
Trigger *tr = (Trigger*)sqlite3_malloc(sizeof(Trigger));
TEST_ASSERT_NOT_NULL(tr);
memset(tr, 0, sizeof(Trigger));
tr->step_list = st;
/* Expected pointers */
gCb.pUpTarget1 = eUpTarget1;
gCb.pUpSet1 = eUpSet1;
gCb.pUpWhere = eUpWhere;
gCb.pUpTargetWhere = eUpTargetWhere;
Walker w;
memset(&w, 0, sizeof(w));
w.xExprCallback = testExprCallback;
w.xSelectCallback = testSelectCallback;
test_renameWalkTrigger(&w, tr);
/* Expect: 1 target expr + 1 set expr + where + targetWhere = 4 exprs */
TEST_ASSERT_EQUAL_INT(4, gCb.nExprCalls);
TEST_ASSERT_EQUAL_INT(0, gCb.nSelectCalls);
TEST_ASSERT_EQUAL_INT(1, gCb.hitUpTarget1);
TEST_ASSERT_EQUAL_INT(1, gCb.hitUpSet1);
TEST_ASSERT_EQUAL_INT(1, gCb.hitUpWhere);
TEST_ASSERT_EQUAL_INT(1, gCb.hitUpTargetWhere);
TEST_ASSERT_EQUAL_INT(0, gCb.unexpectedExpr);
TEST_ASSERT_EQUAL_INT(0, gCb.unexpectedSelect);
/* Cleanup */
sqlite3_free(eUpTarget1);
sqlite3_free(eUpSet1);
sqlite3_free(eUpWhere);
sqlite3_free(eUpTargetWhere);
freeExprList(pTarget);
freeExprList(pSet);
sqlite3_free(pUp);
sqlite3_free(st);
sqlite3_free(tr);
}
/* Test: Multiple steps are iterated (one with SELECT, next with WHERE) */
void test_renameWalkTrigger_multiple_steps(void){
Select *pSel = mkEmptySelect();
Expr *eWhere2 = mkLeafExpr();
TriggerStep *st1 = (TriggerStep*)sqlite3_malloc(sizeof(TriggerStep));
TEST_ASSERT_NOT_NULL(st1);
memset(st1, 0, sizeof(TriggerStep));
st1->pSelect = pSel;
TriggerStep *st2 = (TriggerStep*)sqlite3_malloc(sizeof(TriggerStep));
TEST_ASSERT_NOT_NULL(st2);
memset(st2, 0, sizeof(TriggerStep));
st2->pWhere = eWhere2;
st1->pNext = st2;
Trigger *tr = (Trigger*)sqlite3_malloc(sizeof(Trigger));
TEST_ASSERT_NOT_NULL(tr);
memset(tr, 0, sizeof(Trigger));
tr->step_list = st1;
/* Expected pointers */
gCb.pSel1 = pSel;
gCb.pWhere = eWhere2;
Walker w;
memset(&w, 0, sizeof(w));
w.xExprCallback = testExprCallback;
w.xSelectCallback = testSelectCallback;
test_renameWalkTrigger(&w, tr);
TEST_ASSERT_EQUAL_INT(1, gCb.nSelectCalls);
TEST_ASSERT_EQUAL_INT(1, gCb.nExprCalls);
TEST_ASSERT_EQUAL_INT(1, gCb.hitSel1);
TEST_ASSERT_EQUAL_INT(1, gCb.hitWhere);
TEST_ASSERT_EQUAL_INT(0, gCb.unexpectedExpr);
TEST_ASSERT_EQUAL_INT(0, gCb.unexpectedSelect);
/* Cleanup */
sqlite3_free(pSel);
sqlite3_free(eWhere2);
sqlite3_free(st1);
sqlite3_free(st2);
sqlite3_free(tr);
}
int main(void){
UNITY_BEGIN();
RUN_TEST(test_renameWalkTrigger_nulls);
RUN_TEST(test_renameWalkTrigger_basic_fields);
RUN_TEST(test_renameWalkTrigger_upsert_fields);
RUN_TEST(test_renameWalkTrigger_multiple_steps);
return UNITY_END();
} |