[libsigrok.git] / tests / strutil.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2013 Uwe Hermann <uwe@hermann-uwe.de>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 */

#include <config.h>
#include <check.h>
#include <errno.h>
#include <locale.h>
#include <libsigrok/libsigrok.h>
#include "lib.h"

#if 0
static void test_vsnprintf(const char *expected, char *format, ...)
{
	va_list args;
	char *s;
	int len;

	len = 16;
	s = g_malloc0(len + 1);

	va_start(args, format);
	len = vsnprintf(s, len, format, args);
	va_end(args);

	fail_unless(s != NULL,
			"Invalid result for '%s': len = %i.", expected, len);
	fail_unless(!strcmp(s, expected),
			"Invalid result for '%s': %s.", expected, s);
	g_free(s);
}
#endif

static void test_sr_vsnprintf_ascii(const char *expected, char *format, ...)
{
	va_list args;
	char *s;
	int len;

	len = 16;
	s = g_malloc0(len + 1);

	va_start(args, format);
	len = sr_vsnprintf_ascii(s, len, format, args);
	va_end(args);

	fail_unless(s != NULL,
			"Invalid result for '%s': len = %i.", expected, len);
	fail_unless(!strcmp(s, expected),
			"Invalid result for '%s': %s.", expected, s);
	g_free(s);
}

static void test_sr_vsprintf_ascii(const char *expected, char *format, ...)
{
	va_list args, args_copy;
	char *s;
	int len;

	/* Get length of buffer required. */
	va_start(args, format);
	va_copy(args_copy, args);
	len = sr_vsnprintf_ascii(NULL, 0, format, args);
	va_end(args);

	/* Allocate buffer and write out command. */
	s = g_malloc0(len + 1);
	len = sr_vsprintf_ascii(s, format, args_copy);
	va_end(args_copy);

	fail_unless(s != NULL,
			"Invalid result for '%s': len = %i.", expected, len);
	fail_unless(!strcmp(s, expected),
			"Invalid result for '%s': %s.", expected, s);
	g_free(s);
}

static void test_samplerate(uint64_t samplerate, const char *expected)
{
	char *s;

	s = sr_samplerate_string(samplerate);
	fail_unless(s != NULL);
	fail_unless(!strcmp(s, expected),
		    "Invalid result for '%s': %s.", expected, s);
	g_free(s);
}

static void test_period(uint64_t v_p, uint64_t v_q, const char *expected)
{
	char *s;

	s = sr_period_string(v_p, v_q);
	fail_unless(s != NULL);
	fail_unless(!strcmp(s, expected),
		    "Invalid result for '%s': %s.", expected, s);
	g_free(s);
}

static void test_rational(const char *input, struct sr_rational expected)
{
	int ret;
	struct sr_rational rational;

	ret = sr_parse_rational(input, &rational);
	fail_unless(ret == SR_OK, "Unexpected rc for '%s': %d, errno %d.",
		input, ret, errno);
	fail_unless((expected.p == rational.p) && (expected.q == rational.q),
		    "Invalid result for '%s': %ld/%ld'.",
		    input, rational.p, rational.q);
}

static void test_voltage(uint64_t v_p, uint64_t v_q, const char *expected)
{
	char *s;

	s = sr_voltage_string(v_p, v_q);
	fail_unless(s != NULL);
	fail_unless(!strcmp(s, expected),
		    "Invalid result for '%s': %s.", expected, s);
	g_free(s);
}

START_TEST(test_locale)
{
	char *old_locale, *saved_locale;

	/* Get the the current locale. */
	old_locale = setlocale(LC_NUMERIC, NULL);
	fprintf(stderr, "Old locale = %s\n", old_locale);
	/* Copy the name so it won’t be clobbered by setlocale. */
	saved_locale = g_strdup(old_locale);
	ck_assert_msg(saved_locale != NULL);

#ifdef _WIN32
	/*
	 * See: https://msdn.microsoft.com/en-us/library/cc233982.aspx
	 * Doesn't work! Locale is not set!
	 */
	setlocale(LC_NUMERIC, "de-DE");
#else
	/*
	 * For all *nix and OSX systems, change the locale for all threads to
	 * one that is known for not working correctly with printf(), e.g.
	 * "de_DE.UTF-8".
	 *
	 * Find all your available system locales with "locale -a".
	 */
	setlocale(LC_NUMERIC, "de_DE.UTF-8");
#endif
	fprintf(stderr, "New locale = %s\n", setlocale(LC_NUMERIC, NULL));

	test_sr_vsnprintf_ascii("0.1", "%.1f", (double)0.1);
	test_sr_vsnprintf_ascii("0.12", "%.2f", (double)0.12);
	test_sr_vsnprintf_ascii("0.123", "%.3f", (double)0.123);
	test_sr_vsnprintf_ascii("0.1234", "%.4f", (double)0.1234);
	test_sr_vsnprintf_ascii("0.12345", "%.5f", (double)0.12345);
	test_sr_vsnprintf_ascii("0.123456", "%.6f", (double)0.123456);

	test_sr_vsprintf_ascii("0.1", "%.1f", (double)0.1);
	test_sr_vsprintf_ascii("0.12", "%.2f", (double)0.12);
	test_sr_vsprintf_ascii("0.123", "%.3f", (double)0.123);
	test_sr_vsprintf_ascii("0.1234", "%.4f", (double)0.1234);
	test_sr_vsprintf_ascii("0.12345", "%.5f", (double)0.12345);
	test_sr_vsprintf_ascii("0.123456", "%.6f", (double)0.123456);

#if 0
	/*
	 * These tests can be used to tell on which platforms the printf()
	 * functions are locale-dependent (i.e. these tests will fail).
	 */
	test_vsnprintf("0.1", "%.1f", (double)0.1);
	test_vsnprintf("0.12", "%.2f", (double)0.12);
	test_vsnprintf("0.123", "%.3f", (double)0.123);
	test_vsnprintf("0.1234", "%.4f", (double)0.1234);
	test_vsnprintf("0.12345", "%.5f", (double)0.12345);
	test_vsnprintf("0.123456", "%.6f", (double)0.123456);
#endif

	/* Restore the original locale. */
	setlocale(LC_NUMERIC, saved_locale);
	g_free(saved_locale);
}
END_TEST

/*
 * Check various inputs for sr_samplerate_string():
 *
 *  - One, two, or three digit results (e.g. 5/55/555 MHz).
 *  - Results which contain commas (e.g. 1.234 / 12.34 / 123.4 kHz).
 *  - Results with zeroes right after the comma (e.g. 1.034 Hz).
 *    See also: http://sigrok.org/bugzilla/show_bug.cgi?id=73
 *  - Results with zeroes in the middle (e.g. 1.204 kHz).
 *  - All of the above, but using SR_MHZ() and friends.
 *    See also: http://sigrok.org/bugzilla/show_bug.cgi?id=72
 *
 * All of the above tests are done for the Hz/kHz/MHz/GHz ranges.
 */

START_TEST(test_hz)
{
	test_samplerate(0, "0 Hz");
	test_samplerate(1, "1 Hz");
	test_samplerate(23, "23 Hz");
	test_samplerate(644, "644 Hz");
	test_samplerate(604, "604 Hz");
	test_samplerate(550, "550 Hz");

	/* Again, but now using SR_HZ(). */
	test_samplerate(SR_HZ(0), "0 Hz");
	test_samplerate(SR_HZ(1), "1 Hz");
	test_samplerate(SR_HZ(23), "23 Hz");
	test_samplerate(SR_HZ(644), "644 Hz");
	test_samplerate(SR_HZ(604), "604 Hz");
	test_samplerate(SR_HZ(550), "550 Hz");
}
END_TEST

START_TEST(test_khz)
{
	test_samplerate(1000, "1 kHz");
	test_samplerate(99000, "99 kHz");
	test_samplerate(225000, "225 kHz");
	test_samplerate(1234, "1.234 kHz");
	test_samplerate(12345, "12.345 kHz");
	test_samplerate(123456, "123.456 kHz");
	test_samplerate(1034, "1.034 kHz");
	test_samplerate(1004, "1.004 kHz");
	test_samplerate(1230, "1.23 kHz");

	/* Again, but now using SR_KHZ(). */
	test_samplerate(SR_KHZ(1), "1 kHz");
	test_samplerate(SR_KHZ(99), "99 kHz");
	test_samplerate(SR_KHZ(225), "225 kHz");
	test_samplerate(SR_KHZ(1.234), "1.234 kHz");
	test_samplerate(SR_KHZ(12.345), "12.345 kHz");
	test_samplerate(SR_KHZ(123.456), "123.456 kHz");
	test_samplerate(SR_KHZ(1.204), "1.204 kHz");
	test_samplerate(SR_KHZ(1.034), "1.034 kHz");
	test_samplerate(SR_KHZ(1.004), "1.004 kHz");
	test_samplerate(SR_KHZ(1.230), "1.23 kHz");
}
END_TEST

START_TEST(test_mhz)
{
	test_samplerate(1000000, "1 MHz");
	test_samplerate(28000000, "28 MHz");
	test_samplerate(775000000, "775 MHz");
	test_samplerate(1234567, "1.234567 MHz");
	test_samplerate(12345678, "12.345678 MHz");
	test_samplerate(123456789, "123.456789 MHz");
	test_samplerate(1230007, "1.230007 MHz");
	test_samplerate(1034567, "1.034567 MHz");
	test_samplerate(1000007, "1.000007 MHz");
	test_samplerate(1234000, "1.234 MHz");

	/* Again, but now using SR_MHZ(). */
	test_samplerate(SR_MHZ(1), "1 MHz");
	test_samplerate(SR_MHZ(28), "28 MHz");
	test_samplerate(SR_MHZ(775), "775 MHz");
	test_samplerate(SR_MHZ(1.234567), "1.234567 MHz");
	test_samplerate(SR_MHZ(12.345678), "12.345678 MHz");
	test_samplerate(SR_MHZ(123.456789), "123.456789 MHz");
	test_samplerate(SR_MHZ(1.230007), "1.230007 MHz");
	test_samplerate(SR_MHZ(1.034567), "1.034567 MHz");
	test_samplerate(SR_MHZ(1.000007), "1.000007 MHz");
	test_samplerate(SR_MHZ(1.234000), "1.234 MHz");
}
END_TEST

START_TEST(test_ghz)
{
	test_samplerate(UINT64_C(1000000000), "1 GHz");
	test_samplerate(UINT64_C(5000000000), "5 GHz");
	test_samplerate(UINT64_C(72000000000), "72 GHz");
	test_samplerate(UINT64_C(388000000000), "388 GHz");
	test_samplerate(UINT64_C(4417594444), "4.417594444 GHz");
	test_samplerate(UINT64_C(44175944444), "44.175944444 GHz");
	test_samplerate(UINT64_C(441759444441), "441.759444441 GHz");
	test_samplerate(UINT64_C(441759000001), "441.759000001 GHz");
	test_samplerate(UINT64_C(441050000000), "441.05 GHz");
	test_samplerate(UINT64_C(441000000005), "441.000000005 GHz");
	test_samplerate(UINT64_C(441500000000), "441.5 GHz");

	/* Again, but now using SR_GHZ(). */
	test_samplerate(SR_GHZ(1), "1 GHz");
	test_samplerate(SR_GHZ(5), "5 GHz");
	test_samplerate(SR_GHZ(72), "72 GHz");
	test_samplerate(SR_GHZ(388), "388 GHz");
	test_samplerate(SR_GHZ(4.417594444), "4.417594444 GHz");
	test_samplerate(SR_GHZ(44.175944444), "44.175944444 GHz");
	test_samplerate(SR_GHZ(441.759444441), "441.759444441 GHz");
	test_samplerate(SR_GHZ(441.759000001), "441.759000001 GHz");
	test_samplerate(SR_GHZ(441.050000000), "441.05 GHz");
	test_samplerate(SR_GHZ(441.000000005), "441.000000005 GHz");
	test_samplerate(SR_GHZ(441.500000000), "441.5 GHz");

	/* Now check the biggest-possible samplerate (2^64 Hz). */
	// test_samplerate(UINT64_C(18446744073709551615), "18446744073.709551615 GHz");
	// test_samplerate(SR_GHZ(UINT64_C(18446744073)), "18446744073 GHz");
}
END_TEST

START_TEST(test_hz_period)
{
	test_period(1, 1, "1 s");
	test_period(1, 5, "200 ms");
	test_period(1, 72, "13.889 ms");
	test_period(1, 388, "2.577 ms");
	test_period(10, 1000, "10 ms");

	/* Again, but now using SR_HZ(). */
	test_period(1, SR_HZ(1), "1 s");
	test_period(1, SR_HZ(5), "200 ms");
	test_period(1, SR_HZ(72), "13.889 ms");
	test_period(1, SR_HZ(388), "2.577 ms");
	test_period(10, SR_HZ(100), "100 ms");
}
END_TEST

START_TEST(test_ghz_period)
{
	test_period(1, UINT64_C(1000000000), "1 ns");
	test_period(1, UINT64_C(5000000000), "200 ps");
	test_period(1, UINT64_C(72000000000), "13.889 ps");
	test_period(1, UINT64_C(388000000000), "2.577 ps");
	test_period(10, UINT64_C(1000000000000), "10 ps");
	test_period(200, UINT64_C(1000000000000), "200 ps");

	/* Again, but now using SR_GHZ(). */
	test_period(1, SR_GHZ(1), "1 ns");
	test_period(1, SR_GHZ(5), "200 ps");
	test_period(1, SR_GHZ(72), "13.889 ps");
	test_period(1, SR_GHZ(388), "2.577 ps");
	test_period(10, SR_GHZ(1), "10 ns");
	test_period(200, SR_GHZ(1000), "200 ps");
}
END_TEST

START_TEST(test_volt)
{
	test_voltage(34, 1, "34 V");
	test_voltage(34, 2, "17 V");
	test_voltage(1, 1, "1 V");
	test_voltage(1, 5, "0.2 V");
	test_voltage(200, 1000, "200 mV");
	test_voltage(1, 72, "0.0138889 V");
	test_voltage(1, 388, "0.00257732 V");
	test_voltage(10, 1000, "10 mV");
}
END_TEST

START_TEST(test_integral)
{
	test_rational("1", (struct sr_rational){1, 1});
	test_rational("2", (struct sr_rational){2, 1});
	test_rational("10", (struct sr_rational){10, 1});
	test_rational("-255", (struct sr_rational){-255, 1});
}
END_TEST

START_TEST(test_fractional)
{
	test_rational("0.1", (struct sr_rational){1, 10});
	test_rational("1.0", (struct sr_rational){10, 10});
	test_rational("1.2", (struct sr_rational){12, 10});
	test_rational("12.34", (struct sr_rational){1234, 100});
	test_rational("-12.34", (struct sr_rational){-1234, 100});
	test_rational("10.00", (struct sr_rational){1000, 100});
	test_rational(".1", (struct sr_rational){1, 10});
	test_rational("+0.1", (struct sr_rational){1, 10});
	test_rational("+.1", (struct sr_rational){1, 10});
	test_rational("-0.1", (struct sr_rational){-1, 10});
	test_rational("-.1", (struct sr_rational){-1, 10});
}
END_TEST

START_TEST(test_exponent)
{
	test_rational("1e0", (struct sr_rational){1, 1});
	test_rational("1E0", (struct sr_rational){1, 1});
	test_rational("1E1", (struct sr_rational){10, 1});
	test_rational("1e-1", (struct sr_rational){1, 10});
	test_rational("-1.234e-0", (struct sr_rational){-1234, 1000});
	test_rational("-1.234e3", (struct sr_rational){-1234, 1});
	test_rational("-1.234e-3", (struct sr_rational){-1234, 1000000});
	test_rational("0.001e3", (struct sr_rational){1, 1});
	test_rational("0.001e0", (struct sr_rational){1, 1000});
	test_rational("0.001e-3", (struct sr_rational){1, 1000000});
	test_rational("43.737E-3", (struct sr_rational){43737, 1000000});
	test_rational("-0.1e-2", (struct sr_rational){-1, 1000});
	test_rational("-.1e-2", (struct sr_rational){-1, 1000});
	test_rational("-.0e-2", (struct sr_rational){0, 1000});
	test_rational("+.0e-2", (struct sr_rational){0, 1000});
}
END_TEST

Suite *suite_strutil(void)
{
	Suite *s;
	TCase *tc;

	s = suite_create("strutil");

	tc = tcase_create("sr_samplerate_string");
	tcase_add_checked_fixture(tc, srtest_setup, srtest_teardown);
	tcase_add_test(tc, test_locale);
	tcase_add_test(tc, test_hz);
	tcase_add_test(tc, test_khz);
	tcase_add_test(tc, test_mhz);
	tcase_add_test(tc, test_ghz);
	tcase_add_test(tc, test_hz_period);
	tcase_add_test(tc, test_ghz_period);
	tcase_add_test(tc, test_volt);
	tcase_add_test(tc, test_integral);
	tcase_add_test(tc, test_fractional);
	tcase_add_test(tc, test_exponent);
	suite_add_tcase(s, tc);

	return s;
}
Commit	Line	Data
79bb0e97 UH	1	/*
	2	* This file is part of the libsigrok project.
	3	*
	4	* Copyright (C) 2013 Uwe Hermann <uwe@hermann-uwe.de>
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
2ea1fdf1	17	* along with this program; if not, see <http://www.gnu.org/licenses/>.
79bb0e97 UH	18	*/
79bb0e97 UH	19
6ec6c43b	20	#include <config.h>
79bb0e97	21	#include <check.h>
83a05ca9	22	#include <errno.h>
16e88c6b	23	#include <locale.h>
4960aeb0	24	#include <libsigrok/libsigrok.h>
17794067	25	#include "lib.h"
79bb0e97	26
16e88c6b FS	27	#if 0
	28	static void test_vsnprintf(const char expected, char format, ...)
	29	{
	30	va_list args;
	31	char *s;
	32	int len;
	33
	34	len = 16;
	35	s = g_malloc0(len + 1);
	36
	37	va_start(args, format);
	38	len = vsnprintf(s, len, format, args);
	39	va_end(args);
	40
d8df3c2a FS	41	fail_unless(s != NULL,
d8df3c2a FS	42	"Invalid result for '%s': len = %i.", expected, len);
16e88c6b	43	fail_unless(!strcmp(s, expected),
d8df3c2a	44	"Invalid result for '%s': %s.", expected, s);
16e88c6b FS	45	g_free(s);
	46	}
	47	#endif
	48
	49	static void test_sr_vsnprintf_ascii(const char expected, char format, ...)
	50	{
	51	va_list args;
	52	char *s;
	53	int len;
	54
	55	len = 16;
	56	s = g_malloc0(len + 1);
	57
	58	va_start(args, format);
	59	len = sr_vsnprintf_ascii(s, len, format, args);
	60	va_end(args);
	61
d8df3c2a FS	62	fail_unless(s != NULL,
d8df3c2a FS	63	"Invalid result for '%s': len = %i.", expected, len);
16e88c6b FS	64	fail_unless(!strcmp(s, expected),
	65	"Invalid result for '%s': %s.", expected, s);
	66	g_free(s);
	67	}
	68
7ca40d2d FS	69	static void test_sr_vsprintf_ascii(const char expected, char format, ...)
	70	{
	71	va_list args, args_copy;
	72	char *s;
	73	int len;
	74
	75	/* Get length of buffer required. */
	76	va_start(args, format);
	77	va_copy(args_copy, args);
	78	len = sr_vsnprintf_ascii(NULL, 0, format, args);
	79	va_end(args);
	80
	81	/* Allocate buffer and write out command. */
	82	s = g_malloc0(len + 1);
	83	len = sr_vsprintf_ascii(s, format, args_copy);
	84	va_end(args_copy);
	85
	86	fail_unless(s != NULL,
	87	"Invalid result for '%s': len = %i.", expected, len);
	88	fail_unless(!strcmp(s, expected),
	89	"Invalid result for '%s': %s.", expected, s);
	90	g_free(s);
	91	}
	92
79bb0e97 UH	93	static void test_samplerate(uint64_t samplerate, const char *expected)
	94	{
	95	char *s;
	96
	97	s = sr_samplerate_string(samplerate);
	98	fail_unless(s != NULL);
	99	fail_unless(!strcmp(s, expected),
	100	"Invalid result for '%s': %s.", expected, s);
	101	g_free(s);
	102	}
	103
6984cfb2	104	static void test_period(uint64_t v_p, uint64_t v_q, const char *expected)
5223412e SB	105	{
	106	char *s;
	107
6984cfb2	108	s = sr_period_string(v_p, v_q);
5223412e SB	109	fail_unless(s != NULL);
	110	fail_unless(!strcmp(s, expected),
	111	"Invalid result for '%s': %s.", expected, s);
	112	g_free(s);
	113	}
	114
5ec172d7 SB	115	static void test_rational(const char *input, struct sr_rational expected)
	116	{
	117	int ret;
	118	struct sr_rational rational;
	119
	120	ret = sr_parse_rational(input, &rational);
83a05ca9 GS	121	fail_unless(ret == SR_OK, "Unexpected rc for '%s': %d, errno %d.",
83a05ca9 GS	122	input, ret, errno);
5ec172d7 SB	123	fail_unless((expected.p == rational.p) && (expected.q == rational.q),
	124	"Invalid result for '%s': %ld/%ld'.",
	125	input, rational.p, rational.q);
	126	}
	127
c911599d UH	128	static void test_voltage(uint64_t v_p, uint64_t v_q, const char *expected)
	129	{
	130	char *s;
	131
	132	s = sr_voltage_string(v_p, v_q);
	133	fail_unless(s != NULL);
	134	fail_unless(!strcmp(s, expected),
	135	"Invalid result for '%s': %s.", expected, s);
	136	g_free(s);
	137	}
	138
16e88c6b FS	139	START_TEST(test_locale)
	140	{
	141	char old_locale, saved_locale;
	142
	143	/* Get the the current locale. */
	144	old_locale = setlocale(LC_NUMERIC, NULL);
	145	fprintf(stderr, "Old locale = %s\n", old_locale);
	146	/* Copy the name so it won’t be clobbered by setlocale. */
	147	saved_locale = g_strdup(old_locale);
	148	ck_assert_msg(saved_locale != NULL);
	149
	150	#ifdef _WIN32
	151	/*
	152	* See: https://msdn.microsoft.com/en-us/library/cc233982.aspx
	153	* Doesn't work! Locale is not set!
	154	*/
	155	setlocale(LC_NUMERIC, "de-DE");
	156	#else
	157	/*
	158	* For all *nix and OSX systems, change the locale for all threads to
	159	* one that is known for not working correctly with printf(), e.g.
	160	* "de_DE.UTF-8".
	161	*
	162	* Find all your available system locales with "locale -a".
	163	*/
	164	setlocale(LC_NUMERIC, "de_DE.UTF-8");
	165	#endif
	166	fprintf(stderr, "New locale = %s\n", setlocale(LC_NUMERIC, NULL));
	167
	168	test_sr_vsnprintf_ascii("0.1", "%.1f", (double)0.1);
	169	test_sr_vsnprintf_ascii("0.12", "%.2f", (double)0.12);
	170	test_sr_vsnprintf_ascii("0.123", "%.3f", (double)0.123);
	171	test_sr_vsnprintf_ascii("0.1234", "%.4f", (double)0.1234);
	172	test_sr_vsnprintf_ascii("0.12345", "%.5f", (double)0.12345);
	173	test_sr_vsnprintf_ascii("0.123456", "%.6f", (double)0.123456);
	174
7ca40d2d FS	175	test_sr_vsprintf_ascii("0.1", "%.1f", (double)0.1);
	176	test_sr_vsprintf_ascii("0.12", "%.2f", (double)0.12);
	177	test_sr_vsprintf_ascii("0.123", "%.3f", (double)0.123);
	178	test_sr_vsprintf_ascii("0.1234", "%.4f", (double)0.1234);
	179	test_sr_vsprintf_ascii("0.12345", "%.5f", (double)0.12345);
	180	test_sr_vsprintf_ascii("0.123456", "%.6f", (double)0.123456);
	181
16e88c6b FS	182	#if 0
	183	/*
	184	* These tests can be used to tell on which platforms the printf()
	185	* functions are locale-dependent (i.e. these tests will fail).
	186	*/
	187	test_vsnprintf("0.1", "%.1f", (double)0.1);
	188	test_vsnprintf("0.12", "%.2f", (double)0.12);
	189	test_vsnprintf("0.123", "%.3f", (double)0.123);
	190	test_vsnprintf("0.1234", "%.4f", (double)0.1234);
	191	test_vsnprintf("0.12345", "%.5f", (double)0.12345);
	192	test_vsnprintf("0.123456", "%.6f", (double)0.123456);
	193	#endif
	194
	195	/* Restore the original locale. */
	196	setlocale(LC_NUMERIC, saved_locale);
	197	g_free(saved_locale);
	198	}
	199	END_TEST
	200
79bb0e97 UH	201	/*
	202	* Check various inputs for sr_samplerate_string():
	203	*
	204	* - One, two, or three digit results (e.g. 5/55/555 MHz).
	205	* - Results which contain commas (e.g. 1.234 / 12.34 / 123.4 kHz).
	206	* - Results with zeroes right after the comma (e.g. 1.034 Hz).
	207	* See also: http://sigrok.org/bugzilla/show_bug.cgi?id=73
79bb0e97 UH	208	* - Results with zeroes in the middle (e.g. 1.204 kHz).
	209	* - All of the above, but using SR_MHZ() and friends.
	210	* See also: http://sigrok.org/bugzilla/show_bug.cgi?id=72
	211	*
	212	* All of the above tests are done for the Hz/kHz/MHz/GHz ranges.
	213	*/
	214
	215	START_TEST(test_hz)
	216	{
	217	test_samplerate(0, "0 Hz");
	218	test_samplerate(1, "1 Hz");
	219	test_samplerate(23, "23 Hz");
	220	test_samplerate(644, "644 Hz");
	221	test_samplerate(604, "604 Hz");
	222	test_samplerate(550, "550 Hz");
	223
	224	/* Again, but now using SR_HZ(). */
	225	test_samplerate(SR_HZ(0), "0 Hz");
	226	test_samplerate(SR_HZ(1), "1 Hz");
	227	test_samplerate(SR_HZ(23), "23 Hz");
	228	test_samplerate(SR_HZ(644), "644 Hz");
	229	test_samplerate(SR_HZ(604), "604 Hz");
	230	test_samplerate(SR_HZ(550), "550 Hz");
	231	}
	232	END_TEST
	233
	234	START_TEST(test_khz)
	235	{
	236	test_samplerate(1000, "1 kHz");
	237	test_samplerate(99000, "99 kHz");
	238	test_samplerate(225000, "225 kHz");
	239	test_samplerate(1234, "1.234 kHz");
	240	test_samplerate(12345, "12.345 kHz");
	241	test_samplerate(123456, "123.456 kHz");
	242	test_samplerate(1034, "1.034 kHz");
	243	test_samplerate(1004, "1.004 kHz");
ba253f2b	244	test_samplerate(1230, "1.23 kHz");
79bb0e97 UH	245
	246	/* Again, but now using SR_KHZ(). */
	247	test_samplerate(SR_KHZ(1), "1 kHz");
	248	test_samplerate(SR_KHZ(99), "99 kHz");
	249	test_samplerate(SR_KHZ(225), "225 kHz");
	250	test_samplerate(SR_KHZ(1.234), "1.234 kHz");
	251	test_samplerate(SR_KHZ(12.345), "12.345 kHz");
	252	test_samplerate(SR_KHZ(123.456), "123.456 kHz");
	253	test_samplerate(SR_KHZ(1.204), "1.204 kHz");
	254	test_samplerate(SR_KHZ(1.034), "1.034 kHz");
	255	test_samplerate(SR_KHZ(1.004), "1.004 kHz");
ba253f2b	256	test_samplerate(SR_KHZ(1.230), "1.23 kHz");
79bb0e97 UH	257	}
	258	END_TEST
	259
	260	START_TEST(test_mhz)
	261	{
	262	test_samplerate(1000000, "1 MHz");
	263	test_samplerate(28000000, "28 MHz");
	264	test_samplerate(775000000, "775 MHz");
	265	test_samplerate(1234567, "1.234567 MHz");
	266	test_samplerate(12345678, "12.345678 MHz");
	267	test_samplerate(123456789, "123.456789 MHz");
	268	test_samplerate(1230007, "1.230007 MHz");
	269	test_samplerate(1034567, "1.034567 MHz");
	270	test_samplerate(1000007, "1.000007 MHz");
ba253f2b	271	test_samplerate(1234000, "1.234 MHz");
79bb0e97 UH	272
	273	/* Again, but now using SR_MHZ(). */
	274	test_samplerate(SR_MHZ(1), "1 MHz");
	275	test_samplerate(SR_MHZ(28), "28 MHz");
	276	test_samplerate(SR_MHZ(775), "775 MHz");
	277	test_samplerate(SR_MHZ(1.234567), "1.234567 MHz");
	278	test_samplerate(SR_MHZ(12.345678), "12.345678 MHz");
	279	test_samplerate(SR_MHZ(123.456789), "123.456789 MHz");
	280	test_samplerate(SR_MHZ(1.230007), "1.230007 MHz");
	281	test_samplerate(SR_MHZ(1.034567), "1.034567 MHz");
	282	test_samplerate(SR_MHZ(1.000007), "1.000007 MHz");
ba253f2b	283	test_samplerate(SR_MHZ(1.234000), "1.234 MHz");
79bb0e97 UH	284	}
	285	END_TEST
	286
	287	START_TEST(test_ghz)
	288	{
d9b716fc UH	289	test_samplerate(UINT64_C(1000000000), "1 GHz");
	290	test_samplerate(UINT64_C(5000000000), "5 GHz");
	291	test_samplerate(UINT64_C(72000000000), "72 GHz");
	292	test_samplerate(UINT64_C(388000000000), "388 GHz");
	293	test_samplerate(UINT64_C(4417594444), "4.417594444 GHz");
	294	test_samplerate(UINT64_C(44175944444), "44.175944444 GHz");
	295	test_samplerate(UINT64_C(441759444441), "441.759444441 GHz");
	296	test_samplerate(UINT64_C(441759000001), "441.759000001 GHz");
	297	test_samplerate(UINT64_C(441050000000), "441.05 GHz");
	298	test_samplerate(UINT64_C(441000000005), "441.000000005 GHz");
	299	test_samplerate(UINT64_C(441500000000), "441.5 GHz");
79bb0e97 UH	300
	301	/* Again, but now using SR_GHZ(). */
	302	test_samplerate(SR_GHZ(1), "1 GHz");
	303	test_samplerate(SR_GHZ(5), "5 GHz");
	304	test_samplerate(SR_GHZ(72), "72 GHz");
	305	test_samplerate(SR_GHZ(388), "388 GHz");
	306	test_samplerate(SR_GHZ(4.417594444), "4.417594444 GHz");
	307	test_samplerate(SR_GHZ(44.175944444), "44.175944444 GHz");
	308	test_samplerate(SR_GHZ(441.759444441), "441.759444441 GHz");
	309	test_samplerate(SR_GHZ(441.759000001), "441.759000001 GHz");
	310	test_samplerate(SR_GHZ(441.050000000), "441.05 GHz");
	311	test_samplerate(SR_GHZ(441.000000005), "441.000000005 GHz");
ba253f2b	312	test_samplerate(SR_GHZ(441.500000000), "441.5 GHz");
79bb0e97 UH	313
79bb0e97 UH	314	/* Now check the biggest-possible samplerate (2^64 Hz). */
d9b716fc UH	315	// test_samplerate(UINT64_C(18446744073709551615), "18446744073.709551615 GHz");
d9b716fc UH	316	// test_samplerate(SR_GHZ(UINT64_C(18446744073)), "18446744073 GHz");
79bb0e97 UH	317	}
	318	END_TEST
	319
5223412e SB	320	START_TEST(test_hz_period)
5223412e SB	321	{
6984cfb2 SA	322	test_period(1, 1, "1 s");
	323	test_period(1, 5, "200 ms");
	324	test_period(1, 72, "13.889 ms");
	325	test_period(1, 388, "2.577 ms");
	326	test_period(10, 1000, "10 ms");
5223412e SB	327
5223412e SB	328	/* Again, but now using SR_HZ(). */
6984cfb2 SA	329	test_period(1, SR_HZ(1), "1 s");
	330	test_period(1, SR_HZ(5), "200 ms");
	331	test_period(1, SR_HZ(72), "13.889 ms");
	332	test_period(1, SR_HZ(388), "2.577 ms");
	333	test_period(10, SR_HZ(100), "100 ms");
5223412e SB	334	}
	335	END_TEST
	336
	337	START_TEST(test_ghz_period)
	338	{
d9b716fc UH	339	test_period(1, UINT64_C(1000000000), "1 ns");
	340	test_period(1, UINT64_C(5000000000), "200 ps");
	341	test_period(1, UINT64_C(72000000000), "13.889 ps");
	342	test_period(1, UINT64_C(388000000000), "2.577 ps");
	343	test_period(10, UINT64_C(1000000000000), "10 ps");
	344	test_period(200, UINT64_C(1000000000000), "200 ps");
5223412e SB	345
5223412e SB	346	/* Again, but now using SR_GHZ(). */
6984cfb2 SA	347	test_period(1, SR_GHZ(1), "1 ns");
	348	test_period(1, SR_GHZ(5), "200 ps");
	349	test_period(1, SR_GHZ(72), "13.889 ps");
	350	test_period(1, SR_GHZ(388), "2.577 ps");
	351	test_period(10, SR_GHZ(1), "10 ns");
	352	test_period(200, SR_GHZ(1000), "200 ps");
5223412e SB	353	}
	354	END_TEST
	355
c911599d UH	356	START_TEST(test_volt)
c911599d UH	357	{
b5df922e UH	358	test_voltage(34, 1, "34 V");
	359	test_voltage(34, 2, "17 V");
	360	test_voltage(1, 1, "1 V");
	361	test_voltage(1, 5, "0.2 V");
	362	test_voltage(200, 1000, "200 mV");
	363	test_voltage(1, 72, "0.0138889 V");
	364	test_voltage(1, 388, "0.00257732 V");
	365	test_voltage(10, 1000, "10 mV");
c911599d UH	366	}
	367	END_TEST
	368
5ec172d7 SB	369	START_TEST(test_integral)
	370	{
	371	test_rational("1", (struct sr_rational){1, 1});
	372	test_rational("2", (struct sr_rational){2, 1});
	373	test_rational("10", (struct sr_rational){10, 1});
	374	test_rational("-255", (struct sr_rational){-255, 1});
	375	}
	376	END_TEST
	377
	378	START_TEST(test_fractional)
	379	{
	380	test_rational("0.1", (struct sr_rational){1, 10});
	381	test_rational("1.0", (struct sr_rational){10, 10});
	382	test_rational("1.2", (struct sr_rational){12, 10});
	383	test_rational("12.34", (struct sr_rational){1234, 100});
	384	test_rational("-12.34", (struct sr_rational){-1234, 100});
	385	test_rational("10.00", (struct sr_rational){1000, 100});
41c47f2c SB	386	test_rational(".1", (struct sr_rational){1, 10});
	387	test_rational("+0.1", (struct sr_rational){1, 10});
	388	test_rational("+.1", (struct sr_rational){1, 10});
	389	test_rational("-0.1", (struct sr_rational){-1, 10});
	390	test_rational("-.1", (struct sr_rational){-1, 10});
5ec172d7 SB	391	}
	392	END_TEST
	393
	394	START_TEST(test_exponent)
	395	{
	396	test_rational("1e0", (struct sr_rational){1, 1});
	397	test_rational("1E0", (struct sr_rational){1, 1});
	398	test_rational("1E1", (struct sr_rational){10, 1});
	399	test_rational("1e-1", (struct sr_rational){1, 10});
	400	test_rational("-1.234e-0", (struct sr_rational){-1234, 1000});
	401	test_rational("-1.234e3", (struct sr_rational){-1234, 1});
	402	test_rational("-1.234e-3", (struct sr_rational){-1234, 1000000});
	403	test_rational("0.001e3", (struct sr_rational){1, 1});
	404	test_rational("0.001e0", (struct sr_rational){1, 1000});
	405	test_rational("0.001e-3", (struct sr_rational){1, 1000000});
41c47f2c SB	406	test_rational("43.737E-3", (struct sr_rational){43737, 1000000});
	407	test_rational("-0.1e-2", (struct sr_rational){-1, 1000});
	408	test_rational("-.1e-2", (struct sr_rational){-1, 1000});
	409	test_rational("-.0e-2", (struct sr_rational){0, 1000});
	410	test_rational("+.0e-2", (struct sr_rational){0, 1000});
5ec172d7 SB	411	}
	412	END_TEST
	413
79bb0e97 UH	414	Suite *suite_strutil(void)
	415	{
	416	Suite *s;
	417	TCase *tc;
	418
	419	s = suite_create("strutil");
	420
	421	tc = tcase_create("sr_samplerate_string");
98de0c78	422	tcase_add_checked_fixture(tc, srtest_setup, srtest_teardown);
16e88c6b	423	tcase_add_test(tc, test_locale);
79bb0e97 UH	424	tcase_add_test(tc, test_hz);
	425	tcase_add_test(tc, test_khz);
	426	tcase_add_test(tc, test_mhz);
	427	tcase_add_test(tc, test_ghz);
5223412e SB	428	tcase_add_test(tc, test_hz_period);
5223412e SB	429	tcase_add_test(tc, test_ghz_period);
c911599d	430	tcase_add_test(tc, test_volt);
5ec172d7 SB	431	tcase_add_test(tc, test_integral);
	432	tcase_add_test(tc, test_fractional);
	433	tcase_add_test(tc, test_exponent);
79bb0e97 UH	434	suite_add_tcase(s, tc);
	435
	436	return s;
	437	}