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/*
* This file is part of the PulseView project.
*
* Copyright (C) 2013 Joel Holdsworth <joel@airwebreathe.org.uk>
*
* 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 <extdef.h>
#define __STDC_LIMIT_MACROS
#include <stdint.h>
#include <boost/test/unit_test.hpp>
#include "../../pv/data/analogsnapshot.h"
using namespace std;
using pv::data::AnalogSnapshot;
BOOST_AUTO_TEST_SUITE(AnalogSnapshotTest)
void push_analog(AnalogSnapshot &s, unsigned int num_samples,
float value)
{
sr_datafeed_analog analog;
analog.num_samples = num_samples;
float *data = new float[num_samples];
analog.data = data;
while(num_samples-- != 0)
*data++ = value;
s.append_payload(analog);
delete[] (float*)analog.data;
}
BOOST_AUTO_TEST_CASE(Basic)
{
// Create an empty AnalogSnapshot object
sr_datafeed_analog analog;
analog.num_samples = 0;
analog.data = NULL;
AnalogSnapshot s(analog);
//----- Test AnalogSnapshot::push_analog -----//
BOOST_CHECK(s.get_sample_count() == 0);
for (unsigned int i = 0; i < AnalogSnapshot::ScaleStepCount; i++)
{
const AnalogSnapshot::Envelope &m = s._envelope_levels[i];
BOOST_CHECK_EQUAL(m.length, 0);
BOOST_CHECK_EQUAL(m.data_length, 0);
BOOST_CHECK(m.samples == NULL);
}
// Push 8 samples of all zeros
push_analog(s, 8, 0.0f);
BOOST_CHECK(s.get_sample_count() == 8);
// There should not be enough samples to have a single mip map sample
for (unsigned int i = 0; i < AnalogSnapshot::ScaleStepCount; i++)
{
const AnalogSnapshot::Envelope &m = s._envelope_levels[i];
BOOST_CHECK_EQUAL(m.length, 0);
BOOST_CHECK_EQUAL(m.data_length, 0);
BOOST_CHECK(m.samples == NULL);
}
// Push 8 samples of 1.0s to bring the total up to 16
push_analog(s, 8, 1.0f);
// There should now be enough data for exactly one sample
// in mip map level 0, and that sample should be 0
const AnalogSnapshot::Envelope &e0 = s._envelope_levels[0];
BOOST_CHECK_EQUAL(e0.length, 1);
BOOST_CHECK_EQUAL(e0.data_length, AnalogSnapshot::EnvelopeDataUnit);
BOOST_REQUIRE(e0.samples != NULL);
BOOST_CHECK_EQUAL(e0.samples[0].min, 0.0f);
BOOST_CHECK_EQUAL(e0.samples[0].max, 1.0f);
// The higher levels should still be empty
for (unsigned int i = 1; i < AnalogSnapshot::ScaleStepCount; i++)
{
const AnalogSnapshot::Envelope &m = s._envelope_levels[i];
BOOST_CHECK_EQUAL(m.length, 0);
BOOST_CHECK_EQUAL(m.data_length, 0);
BOOST_CHECK(m.samples == NULL);
}
// Push 240 samples of all zeros to bring the total up to 256
push_analog(s, 240, -1.0f);
BOOST_CHECK_EQUAL(e0.length, 16);
BOOST_CHECK_EQUAL(e0.data_length, AnalogSnapshot::EnvelopeDataUnit);
for (unsigned int i = 1; i < e0.length; i++) {
BOOST_CHECK_EQUAL(e0.samples[i].min, -1.0f);
BOOST_CHECK_EQUAL(e0.samples[i].max, -1.0f);
}
const AnalogSnapshot::Envelope &e1 = s._envelope_levels[1];
BOOST_CHECK_EQUAL(e1.length, 1);
BOOST_CHECK_EQUAL(e1.data_length, AnalogSnapshot::EnvelopeDataUnit);
BOOST_REQUIRE(e1.samples != NULL);
BOOST_CHECK_EQUAL(e1.samples[0].min, -1.0f);
BOOST_CHECK_EQUAL(e1.samples[0].max, 1.0f);
}
BOOST_AUTO_TEST_SUITE_END()
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