/*
 * test_helpers.h — minimal test harness for pg_knoe_auth unit tests.
 *
 * Provides palloc/pfree/pstrdup/pnstrdup stubs (no PG cluster needed),
 * a simple PASS/FAIL assertion macro, and a test-runner entry point.
 *
 * See docs/plans/junie/pg_knoe_auth-rename-harden-modularize.md §2.5
 */
#ifndef TEST_HELPERS_H
#define TEST_HELPERS_H

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include <stdarg.h>

/* ── PG memory stubs ─────────────────────────────────────────────────────── */
static inline void *palloc(size_t n)        { return malloc(n); }
static inline void *repalloc(void *p, size_t n) { return realloc(p, n); }
static inline void  pfree(void *p)          { free(p); }
static inline char *pstrdup(const char *s)  { return strdup(s); }
static inline char *pnstrdup(const char *s, size_t n) {
    char *r = malloc(n + 1);
    memcpy(r, s, n);
    r[n] = '\0';
    return r;
}

/* ── PG logging stubs ────────────────────────────────────────────────────── */
#define WARNING 0
#define LOG     1
static inline void elog(int level, const char *fmt, ...) {
    va_list ap;
    va_start(ap, fmt);
    fprintf(stderr, "[%s] ", level == LOG ? "LOG" : "WARNING");
    vfprintf(stderr, fmt, ap);
    fprintf(stderr, "\n");
    va_end(ap);
}

/* ── TopMemoryContext stub ───────────────────────────────────────────────── */
typedef void *MemoryContext;
static MemoryContext TopMemoryContext = NULL;
static inline MemoryContext MemoryContextSwitchTo(MemoryContext ctx) {
    (void) ctx; return NULL;
}
static inline void *MemoryContextAlloc(MemoryContext ctx, size_t n) {
    (void) ctx; return malloc(n);
}

/* ── Test runner ─────────────────────────────────────────────────────────── */
static int _tests_run   = 0;
static int _tests_failed = 0;

#define ASSERT(cond, msg) do { \
    _tests_run++; \
    if (!(cond)) { \
        fprintf(stderr, "FAIL [%s:%d] %s\n", __FILE__, __LINE__, msg); \
        _tests_failed++; \
    } else { \
        fprintf(stdout, "PASS %s\n", msg); \
    } \
} while (0)

#define TEST_SUMMARY() do { \
    printf("\n%d/%d tests passed\n", _tests_run - _tests_failed, _tests_run); \
    return _tests_failed ? 1 : 0; \
} while (0)

#endif /* TEST_HELPERS_H */