testfile.c

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    rv = apr_file_data_set(filetest, "This is a test",
                           "test", apr_pool_cleanup_null);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);

    rv = apr_file_data_get((void **)&teststr, "test", filetest);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);
    CuAssertStrEquals(tc, "This is a test", teststr);

    apr_file_close(filetest);
}

static void test_userdata_getnokey(CuTest *tc)
{
    apr_status_t rv;
    char *teststr;
    apr_file_t *filetest = NULL;

    rv = apr_file_open(&filetest, FILENAME, 
                       APR_WRITE, 
                       APR_UREAD | APR_UWRITE | APR_GREAD, p);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);

    rv = apr_file_data_get((void **)&teststr, "nokey", filetest);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);
    CuAssertPtrEquals(tc, NULL, teststr);
    apr_file_close(filetest);
}

static void test_getc(CuTest *tc)
{
    apr_file_t *f = NULL;
    apr_status_t rv;
    char ch;

    rv = apr_file_open(&f, FILENAME, APR_READ, 0, p);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);

    apr_file_getc(&ch, f);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);
    CuAssertIntEquals(tc, (int)TESTSTR[0], (int)ch);
    apr_file_close(f);
}

static void test_ungetc(CuTest *tc)
{
    apr_file_t *f = NULL;
    apr_status_t rv;
    char ch;

    rv = apr_file_open(&f, FILENAME, APR_READ, 0, p);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);

    apr_file_getc(&ch, f);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);
    CuAssertIntEquals(tc, (int)TESTSTR[0], (int)ch);

    apr_file_ungetc('X', f);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);

    apr_file_getc(&ch, f);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);
    CuAssertIntEquals(tc, 'X', (int)ch);

    apr_file_close(f);
}

static void test_gets(CuTest *tc)
{
    apr_file_t *f = NULL;
    apr_status_t rv;
    char *str = apr_palloc(p, 256);

    rv = apr_file_open(&f, FILENAME, APR_READ, 0, p);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);

    rv = apr_file_gets(str, 256, f);
    /* Only one line in the test file, so APR will encounter EOF on the first
     * call to gets, but we should get APR_SUCCESS on this call and
     * APR_EOF on the next.
     */
    CuAssertIntEquals(tc, APR_SUCCESS, rv);
    CuAssertStrEquals(tc, TESTSTR, str);
    rv = apr_file_gets(str, 256, f);
    CuAssertIntEquals(tc, APR_EOF, rv);
    CuAssertStrEquals(tc, "", str);
    apr_file_close(f);
}

static void test_bigread(CuTest *tc)
{
    apr_file_t *f = NULL;
    apr_status_t rv;
    char buf[APR_BUFFERSIZE * 2];
    apr_size_t nbytes;

    /* Create a test file with known content.
     */
    rv = apr_file_open(&f, "data/created_file", 
                       APR_CREATE | APR_WRITE | APR_TRUNCATE, 
                       APR_UREAD | APR_UWRITE, p);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);

    nbytes = APR_BUFFERSIZE;
    memset(buf, 0xFE, nbytes);

    rv = apr_file_write(f, buf, &nbytes);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);
    CuAssertIntEquals(tc, APR_BUFFERSIZE, nbytes);

    rv = apr_file_close(f);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);

    f = NULL;
    rv = apr_file_open(&f, "data/created_file", APR_READ, 0, p);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);

    nbytes = sizeof buf;
    rv = apr_file_read(f, buf, &nbytes);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);
    CuAssertIntEquals(tc, APR_BUFFERSIZE, nbytes);

    rv = apr_file_close(f);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);

    rv = apr_file_remove("data/created_file", p);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);
}

/* This is a horrible name for this function.  We are testing APR, not how
 * Apache uses APR.  And, this function tests _way_ too much stuff.
 */
static void test_mod_neg(CuTest *tc)
{
    apr_status_t rv;
    apr_file_t *f;
    const char *s;
    int i;
    apr_size_t nbytes;
    char buf[8192];
    apr_off_t cur;
    const char *fname = "data/modneg.dat";

    rv = apr_file_open(&f, fname, 
                       APR_CREATE | APR_WRITE, APR_UREAD | APR_UWRITE, p);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);

    s = "body56789\n";
    nbytes = strlen(s);
    rv = apr_file_write(f, s, &nbytes);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);
    CuAssertIntEquals(tc, strlen(s), nbytes);
    
    for (i = 0; i < 7980; i++) {
        s = "0";
        nbytes = strlen(s);
        rv = apr_file_write(f, s, &nbytes);
        CuAssertIntEquals(tc, APR_SUCCESS, rv);
        CuAssertIntEquals(tc, strlen(s), nbytes);
    }
    
    s = "end456789\n";
    nbytes = strlen(s);
    rv = apr_file_write(f, s, &nbytes);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);
    CuAssertIntEquals(tc, strlen(s), nbytes);

    for (i = 0; i < 10000; i++) {
        s = "1";
        nbytes = strlen(s);
        rv = apr_file_write(f, s, &nbytes);
        CuAssertIntEquals(tc, APR_SUCCESS, rv);
        CuAssertIntEquals(tc, strlen(s), nbytes);
    }
    
    rv = apr_file_close(f);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);

    rv = apr_file_open(&f, fname, APR_READ, 0, p);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);

    rv = apr_file_gets(buf, 11, f);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);
    CuAssertStrEquals(tc, "body56789\n", buf);

    cur = 0;
    rv = apr_file_seek(f, APR_CUR, &cur);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);
    CuAssertIntEquals(tc, 10, cur);

    nbytes = sizeof(buf);
    rv = apr_file_read(f, buf, &nbytes);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);
    CuAssertIntEquals(tc, nbytes, sizeof(buf));

    cur = -((apr_off_t)nbytes - 7980);
    rv = apr_file_seek(f, APR_CUR, &cur);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);
    CuAssertIntEquals(tc, 7990, cur);

    rv = apr_file_gets(buf, 11, f);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);
    CuAssertStrEquals(tc, "end456789\n", buf);

    rv = apr_file_close(f);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);

    rv = apr_file_remove(fname, p);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);
}

static void test_truncate(CuTest *tc)
{
    apr_status_t rv;
    apr_file_t *f;
    const char *fname = "data/testtruncate.dat";
    const char *s;
    apr_size_t nbytes;
    apr_finfo_t finfo;

    apr_file_remove(fname, p);

    rv = apr_file_open(&f, fname,
                       APR_CREATE | APR_WRITE, APR_UREAD | APR_UWRITE, p);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);
    
    s = "some data";
    nbytes = strlen(s);
    rv = apr_file_write(f, s, &nbytes);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);
    CuAssertIntEquals(tc, strlen(s), nbytes);

    rv = apr_file_close(f);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);

    rv = apr_file_open(&f, fname,
                       APR_TRUNCATE | APR_WRITE, APR_UREAD | APR_UWRITE, p);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);

    rv = apr_file_close(f);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);

    rv = apr_stat(&finfo, fname, APR_FINFO_SIZE, p);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);
    CuAssertIntEquals(tc, 0, finfo.size);

    rv = apr_file_remove(fname, p);
    CuAssertIntEquals(tc, APR_SUCCESS, rv);
}

CuSuite *testfile(void)
{
    CuSuite *suite = CuSuiteNew("File I/O");

    SUITE_ADD_TEST(suite, test_open_noreadwrite);
    SUITE_ADD_TEST(suite, test_open_excl);
    SUITE_ADD_TEST(suite, test_open_read);
    SUITE_ADD_TEST(suite, test_open_readwrite);
    SUITE_ADD_TEST(suite, test_read); 
    SUITE_ADD_TEST(suite, test_seek);
    SUITE_ADD_TEST(suite, test_filename);
    SUITE_ADD_TEST(suite, test_fileclose);
    SUITE_ADD_TEST(suite, test_file_remove);
    SUITE_ADD_TEST(suite, test_open_write);
    SUITE_ADD_TEST(suite, test_open_writecreate);
    SUITE_ADD_TEST(suite, test_write);
    SUITE_ADD_TEST(suite, test_userdata_set);
    SUITE_ADD_TEST(suite, test_userdata_get);
    SUITE_ADD_TEST(suite, test_userdata_getnokey);
    SUITE_ADD_TEST(suite, test_getc);
    SUITE_ADD_TEST(suite, test_ungetc);
    SUITE_ADD_TEST(suite, test_gets);
    SUITE_ADD_TEST(suite, test_bigread);
    SUITE_ADD_TEST(suite, test_mod_neg);
    SUITE_ADD_TEST(suite, test_truncate);

    return suite;
}