path: root/camel/tests/lib/camel-test.c

#include "camel-test.h"

#include <stdio.h>
#include <string.h>
#include <signal.h>

#ifdef ENABLE_THREADS
#include <pthread.h>
#include <unistd.h>
#endif

#ifdef ENABLE_THREADS
/* well i dunno, doesn't seem to be in the headers but hte manpage mentions it */
/* a nonportable checking mutex for glibc, not really needed, just validates
   the test harness really */
# ifdef PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP
static pthread_mutex_t lock = PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP;
# else
static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
# endif
#define CAMEL_TEST_LOCK pthread_mutex_lock(&lock)
#define CAMEL_TEST_UNLOCK pthread_mutex_unlock(&lock)
#define CAMEL_TEST_ID (pthread_self())
#else
#define CAMEL_TEST_LOCK
#define CAMEL_TEST_UNLOCK
#define CAMEL_TEST_ID (0)
#endif

static int setup;
static int ok;

struct _stack {
    struct _stack *next;
    int fatal;
    char *what;
};

/* per-thread state */
struct _state {
    char *test;
    int nonfatal;
    struct _stack *state;
};

static GHashTable *info_table;

int camel_test_verbose;

static void
dump_action(int id, struct _state *s, void *d)
{
    struct _stack *node;

#ifdef ENABLE_THREADS
    printf("\nThread %d:\n", id);
#endif
    node = s->state;
    if (node) {
        printf("Current action:\n");
        while (node) {
            printf("\t%s%s\n", node->fatal?"":"[nonfatal]", node->what);
            node = node->next;
        }
    }
    printf("\tTest: %s\n", s->test);
}

static void die(int sig)
{
    static int indie = 0;

    if (!indie) {
        indie = 1;
        printf("\n\nReceived fatal signal %d\n", sig);
        g_hash_table_foreach(info_table, (GHFunc)dump_action, 0);

#ifdef ENABLE_THREADS
        if (camel_test_verbose > 2) {
            printf("Attach debugger to pid %d to debug\n", getpid());
            sleep(1000);
        }
#endif
    }

    _exit(1);
}

static struct _state *
current_state(void)
{
    struct _state *info;

    if (info_table == NULL)
        info_table = g_hash_table_new(0, 0);

    info = g_hash_table_lookup(info_table, (void *)CAMEL_TEST_ID);
    if (info == NULL) {
        info = g_malloc0(sizeof(*info));
        g_hash_table_insert(info_table, (void *)CAMEL_TEST_ID, info);
    }
    return info;
}
    

void camel_test_init(int argc, char **argv)
{
    void camel_init(void);
    int i;

    setup = 1;

#ifndef ENABLE_THREADS
    camel_init();
#endif

    info_table = g_hash_table_new(0, 0);

    /* yeah, we do need ot thread init, even though camel isn't compiled with enable threads */
    g_thread_init(NULL);

    signal(SIGSEGV, die);
    signal(SIGABRT, die);

    /* default, just say what, how well we did, unless fail, then abort */
    camel_test_verbose = 1;

    for (i=0;i<argc;i++) {
        if (argv[i][0] == '-') {
            switch (argv[i][1]) {
            case 'v':
                camel_test_verbose = strlen(argv[i]);
                break;
            case 'q':
                camel_test_verbose = 0;
                break;
            }
        }
    }
}

void camel_test_start(const char *what)
{
    struct _state *s;

    CAMEL_TEST_LOCK;

    s = current_state();

    if (!setup)
        camel_test_init(0, 0);

    ok = 1;

    s->test = g_strdup(what);

    if (camel_test_verbose > 0) {
        printf("Test: %s ... ", what);
        fflush(stdout);
    }

    CAMEL_TEST_UNLOCK;
}

void camel_test_push(const char *what, ...)
{
    struct _stack *node;
    va_list ap;
    char *text;
    struct _state *s;

    CAMEL_TEST_LOCK;

    s = current_state();

    va_start(ap, what);
    text = g_strdup_vprintf(what, ap);
    va_end(ap);

    if (camel_test_verbose > 3)
        printf("Start step: %s\n", text);

    node = g_malloc(sizeof(*node));
    node->what = text;
    node->next = s->state;
    node->fatal = 1;
    s->state = node;

    CAMEL_TEST_UNLOCK;
}

void camel_test_pull(void)
{
    struct _stack *node;
    struct _state *s;

    CAMEL_TEST_LOCK;

    s = current_state();

    g_assert(s->state);

    if (camel_test_verbose > 3)
        printf("Finish step: %s\n", s->state->what);

    node = s->state;
    s->state = node->next;
    if (!node->fatal)
        s->nonfatal--;
    g_free(node->what);
    g_free(node);

    CAMEL_TEST_UNLOCK;
}

/* where to set breakpoints */
void camel_test_break(void);

void camel_test_break(void)
{
}

void camel_test_fail(const char *why, ...)
{
    va_list ap;

    va_start(ap, why);
    camel_test_failv(why, ap);
    va_end(ap);
}


void camel_test_failv(const char *why, va_list ap)
{
    char *text;
    struct _state *s;

    CAMEL_TEST_LOCK;

    s = current_state();

    text = g_strdup_vprintf(why, ap);

    if ((s->nonfatal == 0 && camel_test_verbose > 0)
        || (s->nonfatal && camel_test_verbose > 1)) {
        printf("Failed.\n%s\n", text);
        camel_test_break();
    }

    g_free(text);

    if ((s->nonfatal == 0 && camel_test_verbose > 0)
        || (s->nonfatal && camel_test_verbose > 2)) {
        g_hash_table_foreach(info_table, (GHFunc)dump_action, 0);
    }

    if (s->nonfatal == 0) {
        exit(1);
    } else {
        ok=0;
        if (camel_test_verbose > 1) {
            printf("Known problem (ignored):\n");
            dump_action(CAMEL_TEST_ID, s, 0);
        }
    }

    CAMEL_TEST_UNLOCK;
}

void camel_test_nonfatal(const char *what, ...)
{
    struct _stack *node;
    va_list ap;
    char *text;
    struct _state *s;

    CAMEL_TEST_LOCK;

    s = current_state();

    va_start(ap, what);
    text = g_strdup_vprintf(what, ap);
    va_end(ap);

    if (camel_test_verbose > 3)
        printf("Start nonfatal: %s\n", text);

    node = g_malloc(sizeof(*node));
    node->what = text;
    node->next = s->state;
    node->fatal = 0;
    s->nonfatal++;
    s->state = node;

    CAMEL_TEST_UNLOCK;
}

void camel_test_fatal(void)
{
    camel_test_pull();
}

void camel_test_end(void)
{
    if (camel_test_verbose > 0) {
        if (ok)
            printf("Ok\n");
        else
            printf("Partial success\n");
    }

    fflush(stdout);
}




/* compare strings, ignore whitespace though */
int string_equal(const char *a, const char *b)
{
    const char *ap, *bp;

    ap = a;
    bp = b;

    while (*ap && *bp) {
        while (*ap == ' ' || *ap == '\n' || *ap == '\t')
            ap++;
        while (*bp == ' ' || *bp == '\n' || *bp == '\t')
            bp++;

        a = ap;
        b = bp;

        while (*ap && *ap != ' ' && *ap != '\n' && *ap != '\t')
            ap++;
        while (*bp && *bp != ' ' && *bp != '\n' && *bp != '\t')
            bp++;

        if (ap - a != bp - a
            && ap - 1 > 0
            && memcmp(a, b, ap-a) != 0) {
            return 0;
        }
    }

    return 1;
}