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Diffstat (limited to 'test/unit/samplefilt.c')
| -rw-r--r-- | test/unit/samplefilt.c | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/test/unit/samplefilt.c b/test/unit/samplefilt.c new file mode 100644 index 0000000..19d2f70 --- /dev/null +++ b/test/unit/samplefilt.c @@ -0,0 +1,120 @@ +/* + ********************************************************************** + * Copyright (C) Miroslav Lichvar 2018 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * 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 Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + ********************************************************************** + */ + +#include <local.h> +#include "test.h" + +#define LCL_GetSysPrecisionAsQuantum() (1.0e-6) + +#include <samplefilt.c> + +void +test_unit(void) +{ + NTP_Sample sample_in, sample_out; + SPF_Instance filter; + int i, j, k, sum_count, min_samples, max_samples; + double mean, combine_ratio, sum_err; + + LCL_Initialise(); + + memset(&sample_in, 0, sizeof (sample_in)); + memset(&sample_out, 0, sizeof (sample_out)); + + for (i = 0; i <= 100; i++) { + max_samples = random() % 20 + 1; + min_samples = random() % (max_samples) + 1; + combine_ratio = TST_GetRandomDouble(0.0, 1.0); + + filter = SPF_CreateInstance(min_samples, max_samples, 2.0, combine_ratio); + + TEST_CHECK(max_samples == SPF_GetMaxSamples(filter)); + + for (j = 0, sum_count = 0, sum_err = 0.0; j < 100; j++) { + DEBUG_LOG("iteration %d/%d", i, j); + + mean = TST_GetRandomDouble(-1.0e3, 1.0e3); + UTI_ZeroTimespec(&sample_in.time); + + for (k = 0; k < 100; k++) { + UTI_AddDoubleToTimespec(&sample_in.time, TST_GetRandomDouble(1.0e-1, 1.0e2), + &sample_in.time); + sample_in.offset = mean + TST_GetRandomDouble(-1.0, 1.0); + sample_in.peer_dispersion = TST_GetRandomDouble(1.0e-4, 2.0e-4); + sample_in.root_dispersion = TST_GetRandomDouble(1.0e-3, 2.0e-3); + sample_in.peer_delay = TST_GetRandomDouble(1.0e-2, 2.0e-2); + sample_in.root_delay = TST_GetRandomDouble(1.0e-1, 2.0e-1); + + TEST_CHECK(SPF_AccumulateSample(filter, &sample_in)); + TEST_CHECK(!SPF_AccumulateSample(filter, &sample_in)); + + TEST_CHECK(SPF_GetNumberOfSamples(filter) == MIN(k + 1, max_samples)); + + SPF_GetLastSample(filter, &sample_out); + TEST_CHECK(!memcmp(&sample_in, &sample_out, sizeof (sample_in))); + + SPF_SlewSamples(filter, &sample_in.time, 0.0, 0.0); + SPF_CorrectOffset(filter, 0.0); + SPF_AddDispersion(filter, 0.0); + + if (k + 1 < min_samples) + TEST_CHECK(!SPF_GetFilteredSample(filter, &sample_out)); + + TEST_CHECK(SPF_GetNumberOfSamples(filter) == MIN(k + 1, max_samples)); + } + + if (random() % 10) { + TEST_CHECK(SPF_GetFilteredSample(filter, &sample_out)); + + TEST_CHECK(SPF_GetAvgSampleDispersion(filter) <= 2.0); + + sum_err += sample_out.offset - mean; + sum_count++; + + TEST_CHECK(UTI_CompareTimespecs(&sample_out.time, &sample_in.time) <= 0 && + sample_out.time.tv_sec >= 0); + TEST_CHECK(fabs(sample_out.offset - mean) <= 1.0); + TEST_CHECK(sample_out.peer_dispersion >= 1.0e-4 && + (sample_out.peer_dispersion <= 2.0e-4 || filter->max_samples > 1)); + TEST_CHECK(sample_out.root_dispersion >= 1.0e-3 && + (sample_out.root_dispersion <= 2.0e-3 || filter->max_samples > 1)); + TEST_CHECK(sample_out.peer_delay >= 1.0e-2 && + sample_out.peer_delay <= 2.0e-2); + TEST_CHECK(sample_out.root_delay >= 1.0e-1 && + sample_out.root_delay <= 2.0e-1); + + if (max_samples == 1) + TEST_CHECK(!memcmp(&sample_in, &sample_out, sizeof (sample_in))); + + } else { + SPF_DropSamples(filter); + TEST_CHECK(filter->last < 0); + } + + TEST_CHECK(SPF_GetNumberOfSamples(filter) == 0); + } + + TEST_CHECK(fabs(sum_err / sum_count) < 0.3); + + SPF_DestroyInstance(filter); + } + + LCL_Finalise(); +} |