/* * This file is part of the libsigrok project. * * Copyright (C) 2013 Uwe Hermann * * 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, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include "lib.h" 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_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); fail_unless((expected.p == rational.p) && (expected.q == rational.q), "Invalid result for '%s': %ld/%ld'.", input, rational.p, rational.q); } /* * 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) { /* Note: Numbers > 2^32 need a ULL suffix. */ test_samplerate(1000000000, "1 GHz"); test_samplerate(5000000000ULL, "5 GHz"); test_samplerate(72000000000ULL, "72 GHz"); test_samplerate(388000000000ULL, "388 GHz"); test_samplerate(4417594444ULL, "4.417594444 GHz"); test_samplerate(44175944444ULL, "44.175944444 GHz"); test_samplerate(441759444441ULL, "441.759444441 GHz"); test_samplerate(441759000001ULL, "441.759000001 GHz"); test_samplerate(441050000000ULL, "441.05 GHz"); test_samplerate(441000000005ULL, "441.000000005 GHz"); test_samplerate(441500000000ULL, "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(18446744073709551615ULL, "18446744073.709551615 GHz"); // test_samplerate(SR_GHZ(18446744073ULL), "18446744073 GHz"); } 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}); } 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}); } 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_hz); tcase_add_test(tc, test_khz); tcase_add_test(tc, test_mhz); tcase_add_test(tc, test_ghz); 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; }