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transmission/libtransmission/utils-test.c
Charles Kerr 87c9287b6a
refactor: in tr_truncd(), use DBL_DIG in printf() (#1186)
Previously it was calculated from `log10(1.0 / DBL_EPISILON) - 1`;
however, there's no need to calculate it out when there's an ANSI
standard that already spells it out consisely.
2020-05-01 22:11:45 -05:00

555 lines
13 KiB
C

/*
* This file Copyright (C) 2013-2014 Mnemosyne LLC
*
* It may be used under the GNU GPL versions 2 or 3
* or any future license endorsed by Mnemosyne LLC.
*
*/
#include <limits.h> /* INT_MAX */
#include <math.h> /* sqrt() */
#include <string.h> /* strlen() */
#include <stdlib.h> /* setenv(), unsetenv() */
#ifdef _WIN32
#include <windows.h>
#define setenv(key, value, unused) SetEnvironmentVariableA(key, value)
#define unsetenv(key) SetEnvironmentVariableA(key, NULL)
#endif
#include "transmission.h"
#include "ConvertUTF.h" /* tr_utf8_validate*/
#include "platform.h"
#include "crypto-utils.h" /* tr_rand_int_weak */
#include "utils.h"
#include "web.h"
#define SPEED_TEST 0
#if SPEED_TEST
#define VERBOSE
#endif
#include "libtransmission-test.h"
static int test_strip_positional_args(void)
{
char const* in;
char const* out;
char const* expected;
in = "Hello %1$s foo %2$.*f";
expected = "Hello %s foo %.*f";
out = tr_strip_positional_args(in);
check_str(out, ==, expected);
in = "Hello %1$'d foo %2$'f";
expected = "Hello %d foo %f";
out = tr_strip_positional_args(in);
check_str(out, ==, expected);
return 0;
}
static int test_strstrip(void)
{
char* in;
char* out;
/* strstrip */
in = tr_strdup(" test ");
out = tr_strstrip(in);
check_ptr(in, ==, out);
check_str(out, ==, "test");
tr_free(in);
/* strstrip */
in = tr_strdup(" test test ");
out = tr_strstrip(in);
check_ptr(in, ==, out);
check_str(out, ==, "test test");
tr_free(in);
/* strstrip */
in = tr_strdup("test");
out = tr_strstrip(in);
check_ptr(in, ==, out);
check_str(out, ==, "test");
tr_free(in);
return 0;
}
static int test_buildpath(void)
{
char* out;
out = tr_buildPath("foo", "bar", NULL);
check_str(out, ==, "foo" TR_PATH_DELIMITER_STR "bar");
tr_free(out);
out = tr_buildPath("", "foo", "bar", NULL);
check_str(out, ==, TR_PATH_DELIMITER_STR "foo" TR_PATH_DELIMITER_STR "bar");
tr_free(out);
return 0;
}
static int test_utf8(void)
{
char const* in;
char* out;
in = "hello world";
out = tr_utf8clean(in, TR_BAD_SIZE);
check_str(out, ==, in);
tr_free(out);
in = "hello world";
out = tr_utf8clean(in, 5);
check_str(out, ==, "hello");
tr_free(out);
/* this version is not utf-8 (but cp866) */
in = "\x92\xE0\xE3\xA4\xAD\xAE \xA1\xEB\xE2\xEC \x81\xAE\xA3\xAE\xAC";
out = tr_utf8clean(in, 17);
check_ptr(out, !=, NULL);
check(strlen(out) == 17 || strlen(out) == 33);
check(tr_utf8_validate(out, TR_BAD_SIZE, NULL));
tr_free(out);
/* same string, but utf-8 clean */
in = "Трудно быть Богом";
out = tr_utf8clean(in, TR_BAD_SIZE);
check_ptr(out, !=, NULL);
check(tr_utf8_validate(out, TR_BAD_SIZE, NULL));
check_str(out, ==, in);
tr_free(out);
in = "\xF4\x00\x81\x82";
out = tr_utf8clean(in, 4);
check_ptr(out, !=, NULL);
check(strlen(out) == 1 || strlen(out) == 2);
check(tr_utf8_validate(out, TR_BAD_SIZE, NULL));
tr_free(out);
in = "\xF4\x33\x81\x82";
out = tr_utf8clean(in, 4);
check_ptr(out, !=, NULL);
check(strlen(out) == 4 || strlen(out) == 7);
check(tr_utf8_validate(out, TR_BAD_SIZE, NULL));
tr_free(out);
return 0;
}
static int test_numbers(void)
{
int count;
int* numbers;
numbers = tr_parseNumberRange("1-10,13,16-19", TR_BAD_SIZE, &count);
check_int(count, ==, 15);
check_int(numbers[0], ==, 1);
check_int(numbers[5], ==, 6);
check_int(numbers[9], ==, 10);
check_int(numbers[10], ==, 13);
check_int(numbers[11], ==, 16);
check_int(numbers[14], ==, 19);
tr_free(numbers);
numbers = tr_parseNumberRange("1-5,3-7,2-6", TR_BAD_SIZE, &count);
check_int(count, ==, 7);
check_ptr(numbers, !=, NULL);
for (int i = 0; i < count; ++i)
{
check_int(numbers[i], ==, i + 1);
}
tr_free(numbers);
numbers = tr_parseNumberRange("1-Hello", TR_BAD_SIZE, &count);
check_int(count, ==, 0);
check_ptr(numbers, ==, NULL);
numbers = tr_parseNumberRange("1-", TR_BAD_SIZE, &count);
check_int(count, ==, 0);
check_ptr(numbers, ==, NULL);
numbers = tr_parseNumberRange("Hello", TR_BAD_SIZE, &count);
check_int(count, ==, 0);
check_ptr(numbers, ==, NULL);
return 0;
}
static int compareInts(void const* va, void const* vb)
{
int const a = *(int const*)va;
int const b = *(int const*)vb;
return a - b;
}
static int test_lowerbound(void)
{
int const A[] = { 1, 2, 3, 3, 3, 5, 8 };
int const expected_pos[] = { 0, 1, 2, 5, 5, 6, 6, 6, 7, 7 };
bool const expected_exact[] = { true, true, true, false, true, false, false, true, false, false };
int const N = TR_N_ELEMENTS(A);
for (int i = 1; i <= 10; i++)
{
bool exact;
int const pos = tr_lowerBound(&i, A, N, sizeof(int), compareInts, &exact);
#if 0
fprintf(stderr, "searching for %d. ", i);
fprintf(stderr, "result: index = %d, ", pos);
if (pos != N)
{
fprintf(stderr, "A[%d] == %d\n", pos, A[pos]);
}
else
{
fprintf(stderr, "which is off the end.\n");
}
#endif
check_int(pos, ==, expected_pos[i - 1]);
check_int(exact, ==, expected_exact[i - 1]);
}
return 0;
}
static int test_quickFindFirst_Iteration(size_t const k, size_t const n, int* buf, int range)
{
int highest_low;
int lowest_high;
/* populate buf with random ints */
for (size_t i = 0; i < n; ++i)
{
buf[i] = tr_rand_int_weak(range);
}
/* find the best k */
tr_quickfindFirstK(buf, n, sizeof(int), compareInts, k);
/* confirm that the smallest K ints are in the first slots K slots in buf */
highest_low = INT_MIN;
for (size_t i = 0; i < k; ++i)
{
if (highest_low < buf[i])
{
highest_low = buf[i];
}
}
lowest_high = INT_MAX;
for (size_t i = k; i < n; ++i)
{
if (lowest_high > buf[i])
{
lowest_high = buf[i];
}
}
check_int(highest_low, <=, lowest_high);
return 0;
}
static int test_quickfindFirst(void)
{
size_t const k = 10;
size_t const n = 100;
size_t const n_trials = 1000;
int* buf = tr_new(int, n);
for (size_t i = 0; i < n_trials; ++i)
{
check_int(test_quickFindFirst_Iteration(k, n, buf, 100), ==, 0);
}
tr_free(buf);
return 0;
}
static int test_memmem(void)
{
char const haystack[12] = "abcabcabcabc";
char const needle[3] = "cab";
check_ptr(tr_memmem(haystack, sizeof(haystack), haystack, sizeof(haystack)), ==, haystack);
check_ptr(tr_memmem(haystack, sizeof(haystack), needle, sizeof(needle)), ==, haystack + 2);
check_ptr(tr_memmem(needle, sizeof(needle), haystack, sizeof(haystack)), ==, NULL);
return 0;
}
static int test_hex(void)
{
char hex1[41];
char hex2[41];
uint8_t binary[20];
memcpy(hex1, "fb5ef5507427b17e04b69cef31fa3379b456735a", 41);
tr_hex_to_binary(hex1, binary, 20);
tr_binary_to_hex(binary, hex2, 20);
check_str(hex1, ==, hex2);
return 0;
}
static int test_array(void)
{
size_t array[10] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
size_t n = TR_N_ELEMENTS(array);
tr_removeElementFromArray(array, 5U, sizeof(size_t), n);
--n;
for (size_t i = 0; i < n; ++i)
{
check_int(array[i], ==, i < 5 ? i : i + 1);
}
tr_removeElementFromArray(array, 0U, sizeof(size_t), n);
--n;
for (size_t i = 0; i < n; ++i)
{
check_int(array[i], ==, i < 4 ? i + 1 : i + 2);
}
tr_removeElementFromArray(array, n - 1, sizeof(size_t), n);
--n;
for (size_t i = 0; i < n; ++i)
{
check_int(array[i], ==, i < 4 ? i + 1 : i + 2);
}
return 0;
}
static int test_url(void)
{
int port;
char* scheme;
char* host;
char* path;
char* str;
char const* url;
url = "http://1";
check(tr_urlParse(url, TR_BAD_SIZE, &scheme, &host, &port, &path));
check_str(scheme, ==, "http");
check_str(host, ==, "1");
check_str(path, ==, "/");
check_int(port, ==, 80);
tr_free(scheme);
tr_free(path);
tr_free(host);
url = "http://www.some-tracker.org/some/path";
check(tr_urlParse(url, TR_BAD_SIZE, &scheme, &host, &port, &path));
check_str(scheme, ==, "http");
check_str(host, ==, "www.some-tracker.org");
check_str(path, ==, "/some/path");
check_int(port, ==, 80);
tr_free(scheme);
tr_free(path);
tr_free(host);
url = "http://www.some-tracker.org:80/some/path";
check(tr_urlParse(url, TR_BAD_SIZE, &scheme, &host, &port, &path));
check_str(scheme, ==, "http");
check_str(host, ==, "www.some-tracker.org");
check_str(path, ==, "/some/path");
check_int(port, ==, 80);
tr_free(scheme);
tr_free(path);
tr_free(host);
url = "http%3A%2F%2Fwww.example.com%2F~user%2F%3Ftest%3D1%26test1%3D2";
str = tr_http_unescape(url, strlen(url));
check_str(str, ==, "http://www.example.com/~user/?test=1&test1=2");
tr_free(str);
return 0;
}
static int test_truncd(void)
{
char buf[32];
double const nan = sqrt(-1);
tr_snprintf(buf, sizeof(buf), "%.2f%%", 99.999);
check_str(buf, ==, "100.00%");
tr_snprintf(buf, sizeof(buf), "%.2f%%", tr_truncd(99.999, 2));
check_str(buf, ==, "99.99%");
tr_snprintf(buf, sizeof(buf), "%.4f", tr_truncd(403650.656250, 4));
check_str(buf, ==, "403650.6562");
tr_snprintf(buf, sizeof(buf), "%.2f", tr_truncd(2.15, 2));
check_str(buf, ==, "2.15");
tr_snprintf(buf, sizeof(buf), "%.2f", tr_truncd(2.05, 2));
check_str(buf, ==, "2.05");
tr_snprintf(buf, sizeof(buf), "%.2f", tr_truncd(3.3333, 2));
check_str(buf, ==, "3.33");
tr_snprintf(buf, sizeof(buf), "%.0f", tr_truncd(3.3333, 0));
check_str(buf, ==, "3");
tr_snprintf(buf, sizeof(buf), "%.0f", tr_truncd(3.9999, 0));
check_str(buf, ==, "3");
#if !(defined(_MSC_VER) || (defined(__MINGW32__) && defined(__MSVCRT__)))
/* FIXME: MSCVRT behaves differently in case of nan */
tr_snprintf(buf, sizeof(buf), "%.2f", tr_truncd(nan, 2));
check(strstr(buf, "nan") != NULL || strstr(buf, "NaN") != NULL);
#else
(void)nan;
#endif
return 0;
}
static char* test_strdup_printf_valist(char const* fmt, ...) TR_GNUC_PRINTF(1, 2);
static char* test_strdup_printf_valist(char const* fmt, ...)
{
va_list args;
char* ret;
va_start(args, fmt);
ret = tr_strdup_vprintf(fmt, args);
va_end(args);
return ret;
}
static int test_strdup_printf(void)
{
char* s;
char* s2;
char* s3;
s = tr_strdup_printf("%s", "test");
check_str(s, ==, "test");
tr_free(s);
s = tr_strdup_printf("%d %s %c %u", -1, "0", '1', 2);
check_str(s, ==, "-1 0 1 2");
tr_free(s);
s3 = tr_malloc0(4098);
memset(s3, '-', 4097);
s3[2047] = 't';
s3[2048] = 'e';
s3[2049] = 's';
s3[2050] = 't';
s2 = tr_malloc0(4096);
memset(s2, '-', 4095);
s2[2047] = '%';
s2[2048] = 's';
s = tr_strdup_printf(s2, "test");
check_str(s, ==, s3);
tr_free(s);
tr_free(s2);
s = tr_strdup_printf("%s", s3);
check_str(s, ==, s3);
tr_free(s);
tr_free(s3);
s = test_strdup_printf_valist("\n-%s-%s-%s-\n", "\r", "\t", "\b");
check_str(s, ==, "\n-\r-\t-\b-\n");
tr_free(s);
return 0;
}
static int test_env(void)
{
char const* test_key = "TR_TEST_ENV";
int x;
char* s;
unsetenv(test_key);
check(!tr_env_key_exists(test_key));
x = tr_env_get_int(test_key, 123);
check_int(x, ==, 123);
s = tr_env_get_string(test_key, NULL);
check_str(s, ==, NULL);
s = tr_env_get_string(test_key, "a");
check_str(s, ==, "a");
tr_free(s);
setenv(test_key, "", 1);
check(tr_env_key_exists(test_key));
x = tr_env_get_int(test_key, 456);
check_int(x, ==, 456);
s = tr_env_get_string(test_key, NULL);
check_str(s, ==, "");
tr_free(s);
s = tr_env_get_string(test_key, "b");
check_str(s, ==, "");
tr_free(s);
setenv(test_key, "135", 1);
check(tr_env_key_exists(test_key));
x = tr_env_get_int(test_key, 789);
check_int(x, ==, 135);
s = tr_env_get_string(test_key, NULL);
check_str(s, ==, "135");
tr_free(s);
s = tr_env_get_string(test_key, "c");
check_str(s, ==, "135");
tr_free(s);
return 0;
}
int main(void)
{
testFunc const tests[] =
{
test_array,
test_buildpath,
test_hex,
test_lowerbound,
test_quickfindFirst,
test_memmem,
test_numbers,
test_strip_positional_args,
test_strdup_printf,
test_strstrip,
test_truncd,
test_url,
test_utf8,
test_env
};
return runTests(tests, NUM_TESTS(tests));
}