calog/tests/testDbPg.c

190 lines
6.9 KiB
C

// testDbPg.c -- live Postgres backend test. Given a libpq conninfo string on argv[1],
// drives a create/insert/update/query round-trip from a Lua script through the DB library
// and checks the typed values (int, text, double, bool) that come back.
#define _POSIX_C_SOURCE 200809L
#include "calog.h"
#include "calogDb.h"
#include <stdatomic.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#define CHECK(cond, msg) checkImpl((cond), (msg), __FILE__, __LINE__)
#define PUMP_LIMIT 4000
static CalogT *calog = NULL;
static _Atomic int64_t reportedCount = -1;
static _Atomic int64_t reportedId = -1;
static _Atomic int64_t execAffected = -1;
static char reportedName[32] = { 0 };
static char reportedBlob[16] = { 0 };
static _Atomic int32_t reportedBlobLen = -1;
static double reportedScore = 0.0;
static _Atomic bool reportedOk = true;
static _Atomic bool scriptDone = false;
static _Atomic int32_t errorCount = 0;
static int32_t testsRun = 0;
static int32_t testsFailed = 0;
static void checkImpl(bool condition, const char *message, const char *file, int32_t line);
static int32_t nativeDone(CalogValueT *args, int32_t argCount, CalogValueT *result, void *userData);
static int32_t nativeReport(CalogValueT *args, int32_t argCount, CalogValueT *result, void *userData);
static int32_t nativeReportBlob(CalogValueT *args, int32_t argCount, CalogValueT *result, void *userData);
static void onError(uint64_t contextId, const char *message, void *userData);
static void pumpUntilDone(void);
static void checkImpl(bool condition, const char *message, const char *file, int32_t line) {
testsRun++;
if (!condition) {
testsFailed++;
printf("FAIL %s:%d %s\n", file, line, message);
}
}
static int32_t nativeDone(CalogValueT *args, int32_t argCount, CalogValueT *result, void *userData) {
(void)args;
(void)argCount;
(void)userData;
atomic_store(&scriptDone, true);
calogValueNil(result);
return calogOkE;
}
static int32_t nativeReport(CalogValueT *args, int32_t argCount, CalogValueT *result, void *userData) {
size_t length;
(void)userData;
calogValueNil(result);
if (argCount != 6 || args[0].type != calogIntE || args[1].type != calogIntE || args[2].type != calogStringE || args[3].type != calogIntE || args[4].type != calogRealE || args[5].type != calogBoolE) {
return calogFail(result, calogErrArgE, "report expects (count, id, name, affected, score, ok)");
}
atomic_store(&reportedCount, args[0].as.i);
atomic_store(&reportedId, args[1].as.i);
length = (size_t)args[2].as.s.length;
if (length >= sizeof(reportedName)) {
length = sizeof(reportedName) - 1;
}
memcpy(reportedName, args[2].as.s.bytes, length);
reportedName[length] = '\0';
atomic_store(&execAffected, args[3].as.i);
reportedScore = args[4].as.r;
atomic_store(&reportedOk, args[5].as.b);
return calogOkE;
}
static int32_t nativeReportBlob(CalogValueT *args, int32_t argCount, CalogValueT *result, void *userData) {
size_t length;
(void)userData;
calogValueNil(result);
if (argCount != 1 || args[0].type != calogStringE) {
return calogFail(result, calogErrArgE, "reportBlob expects one string");
}
length = (size_t)args[0].as.s.length;
if (length > sizeof(reportedBlob)) {
length = sizeof(reportedBlob);
}
memcpy(reportedBlob, args[0].as.s.bytes, length);
atomic_store(&reportedBlobLen, (int32_t)length);
return calogOkE;
}
static void onError(uint64_t contextId, const char *message, void *userData) {
(void)contextId;
(void)userData;
(void)message;
atomic_fetch_add(&errorCount, 1);
}
static void pumpUntilDone(void) {
struct timespec ts = { 0, 500000 };
int errorsBefore;
int i;
errorsBefore = atomic_load(&errorCount);
for (i = 0; i < PUMP_LIMIT; i++) {
calogPump(calog);
if (atomic_load(&scriptDone) || atomic_load(&errorCount) != errorsBefore) {
calogPump(calog);
return;
}
nanosleep(&ts, NULL);
}
}
int main(int argc, char **argv) {
CalogContextT *ctx;
char script[2048];
const char *conninfo;
if (argc < 2) {
printf("usage: testDbPg <conninfo>\n");
return 2;
}
conninfo = argv[1];
calog = calogCreate();
if (calog == NULL) {
printf("calog create failed\n");
return 1;
}
calogSetErrorHandler(calog, onError, NULL);
calogRegister(calog, "report", nativeReport, NULL);
calogRegister(calog, "reportBlob", nativeReportBlob, NULL);
calogRegister(calog, "done", nativeDone, NULL);
if (calogDbRegister(calog) != calogOkE) {
printf("calogDbRegister failed\n");
return 1;
}
snprintf(script, sizeof(script),
"local db = dbOpen('postgres', '%s')\n"
"dbExec(db, 'drop table if exists ct')\n"
"dbExec(db, 'create table ct (id int, name text, score double precision, ok boolean)')\n"
"dbExec(db, 'insert into ct values ($1, $2, $3, $4)', 1, 'alice', 3.5, true)\n"
"dbExec(db, 'insert into ct values ($1, $2, $3, $4)', 2, 'bob', 7.25, false)\n"
"local n = dbExec(db, 'update ct set name = $1 where id = $2', 'bobby', 2)\n"
"local rows = dbQuery(db, 'select id, name, score, ok from ct order by id')\n"
"report(#rows, rows[2].id, rows[2].name, n, rows[2].score, rows[2].ok)\n"
"dbExec(db, 'drop table if exists bb')\n"
"dbExec(db, 'create table bb (v bytea)')\n"
"dbExec(db, 'insert into bb values ($1)', 'x\\0y')\n"
"local br = dbQuery(db, 'select v from bb')\n"
"reportBlob(br[1].v)\n"
"dbClose(db)\n"
"done()",
conninfo);
ctx = calogContextOpen(calog, &calogLuaEngine);
calogContextEval(ctx, script);
pumpUntilDone();
CHECK(atomic_load(&reportedCount) == 2, "Postgres dbQuery returned both rows");
CHECK(atomic_load(&reportedId) == 2, "the integer column read back typed");
CHECK(strcmp(reportedName, "bobby") == 0, "a bound-param update took effect; text read back");
CHECK(atomic_load(&execAffected) == 1, "dbExec reported the correct rows-affected");
CHECK(reportedScore == 7.25, "the double precision column read back as a real");
CHECK(atomic_load(&reportedOk) == false, "the boolean column read back as a bool");
CHECK(atomic_load(&reportedBlobLen) == 3, "a bytea param with an embedded NUL round-tripped at full length");
CHECK(reportedBlob[0] == 'x' && reportedBlob[1] == '\0' && reportedBlob[2] == 'y', "the embedded NUL survived the Postgres bound-param round-trip");
calogContextClose(ctx);
calogDestroy(calog);
calogDbShutdown();
printf("\n%d checks, %d failed\n", testsRun, testsFailed);
fflush(stdout);
return (testsFailed != 0) ? 1 : 0;
}