tests: Tests for the locale independent sr_vsnprintf_ascii() function.
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@ -19,9 +19,50 @@
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#include <config.h>
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#include <check.h>
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#include <locale.h>
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#include <libsigrok/libsigrok.h>
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#include "lib.h"
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#if 0
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static void test_vsnprintf(const char *expected, char *format, ...)
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{
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va_list args;
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char *s;
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int len;
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len = 16;
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s = g_malloc0(len + 1);
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va_start(args, format);
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len = vsnprintf(s, len, format, args);
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va_end(args);
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fail_unless(s != NULL, "len = %i, s = s", len);
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fail_unless(!strcmp(s, expected),
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"Invalid result for '%s': %s.", expected, s);
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g_free(s);
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}
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#endif
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static void test_sr_vsnprintf_ascii(const char *expected, char *format, ...)
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{
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va_list args;
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char *s;
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int len;
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len = 16;
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s = g_malloc0(len + 1);
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va_start(args, format);
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len = sr_vsnprintf_ascii(s, len, format, args);
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va_end(args);
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fail_unless(s != NULL, "len = %i, s = s", len);
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fail_unless(!strcmp(s, expected),
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"Invalid result for '%s': %s.", expected, s);
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g_free(s);
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}
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static void test_samplerate(uint64_t samplerate, const char *expected)
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{
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char *s;
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@ -67,6 +108,61 @@ static void test_voltage(uint64_t v_p, uint64_t v_q, const char *expected)
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g_free(s);
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}
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START_TEST(test_locale)
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{
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char *old_locale, *saved_locale;
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/* Get the the current locale. */
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old_locale = setlocale(LC_NUMERIC, NULL);
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fprintf(stderr, "Old locale = %s\n", old_locale);
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/* Copy the name so it won’t be clobbered by setlocale. */
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saved_locale = g_strdup(old_locale);
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ck_assert_msg(saved_locale != NULL);
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#ifdef _WIN32
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/*
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* See: https://msdn.microsoft.com/en-us/library/cc233982.aspx
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* Doesn't work! Locale is not set!
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*/
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setlocale(LC_NUMERIC, "de-DE");
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#else
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/*
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* For all *nix and OSX systems, change the locale for all threads to
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* one that is known for not working correctly with printf(), e.g.
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* "de_DE.UTF-8".
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*
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* Find all your available system locales with "locale -a".
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*/
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setlocale(LC_NUMERIC, "de_DE.UTF-8");
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#endif
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fprintf(stderr, "New locale = %s\n", setlocale(LC_NUMERIC, NULL));
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test_sr_vsnprintf_ascii("0.1", "%.1f", (double)0.1);
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test_sr_vsnprintf_ascii("0.12", "%.2f", (double)0.12);
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test_sr_vsnprintf_ascii("0.123", "%.3f", (double)0.123);
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test_sr_vsnprintf_ascii("0.1234", "%.4f", (double)0.1234);
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test_sr_vsnprintf_ascii("0.12345", "%.5f", (double)0.12345);
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test_sr_vsnprintf_ascii("0.123456", "%.6f", (double)0.123456);
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#if 0
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/*
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* These tests can be used to tell on which platforms the printf()
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* functions are locale-dependent (i.e. these tests will fail).
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*/
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test_vsnprintf("0.1", "%.1f", (double)0.1);
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test_vsnprintf("0.12", "%.2f", (double)0.12);
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test_vsnprintf("0.123", "%.3f", (double)0.123);
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test_vsnprintf("0.1234", "%.4f", (double)0.1234);
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test_vsnprintf("0.12345", "%.5f", (double)0.12345);
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test_vsnprintf("0.123456", "%.6f", (double)0.123456);
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#endif
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/* Restore the original locale. */
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setlocale(LC_NUMERIC, saved_locale);
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g_free(saved_locale);
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}
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END_TEST
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/*
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* Check various inputs for sr_samplerate_string():
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*
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@ -292,6 +388,7 @@ Suite *suite_strutil(void)
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tc = tcase_create("sr_samplerate_string");
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tcase_add_checked_fixture(tc, srtest_setup, srtest_teardown);
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tcase_add_test(tc, test_locale);
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tcase_add_test(tc, test_hz);
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tcase_add_test(tc, test_khz);
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tcase_add_test(tc, test_mhz);
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