2 * This file is part of the PulseView project.
4 * Copyright (C) 2013 Joel Holdsworth <joel@airwebreathe.org.uk>
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.
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.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
25 #include <boost/test/unit_test.hpp>
27 #include "../../pv/data/analogsnapshot.h"
29 using pv::data::AnalogSnapshot;
31 BOOST_AUTO_TEST_SUITE(AnalogSnapshotTest)
33 void push_analog(AnalogSnapshot &s, unsigned int num_samples,
36 sr_datafeed_analog analog;
37 analog.num_samples = num_samples;
39 float *data = new float[num_samples];
41 while(num_samples-- != 0)
44 s.append_payload(analog);
45 delete[] (float*)analog.data;
48 BOOST_AUTO_TEST_CASE(Basic)
50 // Create an empty AnalogSnapshot object
51 sr_datafeed_analog analog;
52 analog.num_samples = 0;
55 AnalogSnapshot s(analog);
57 //----- Test AnalogSnapshot::push_analog -----//
59 BOOST_CHECK(s.get_sample_count() == 0);
60 for (unsigned int i = 0; i < AnalogSnapshot::ScaleStepCount; i++)
62 const AnalogSnapshot::Envelope &m = s._envelope_levels[i];
63 BOOST_CHECK_EQUAL(m.length, 0);
64 BOOST_CHECK_EQUAL(m.data_length, 0);
65 BOOST_CHECK(m.samples == NULL);
68 // Push 8 samples of all zeros
69 push_analog(s, 8, 0.0f);
71 BOOST_CHECK(s.get_sample_count() == 8);
73 // There should not be enough samples to have a single mip map sample
74 for (unsigned int i = 0; i < AnalogSnapshot::ScaleStepCount; i++)
76 const AnalogSnapshot::Envelope &m = s._envelope_levels[i];
77 BOOST_CHECK_EQUAL(m.length, 0);
78 BOOST_CHECK_EQUAL(m.data_length, 0);
79 BOOST_CHECK(m.samples == NULL);
82 // Push 8 samples of 1.0s to bring the total up to 16
83 push_analog(s, 8, 1.0f);
85 // There should now be enough data for exactly one sample
86 // in mip map level 0, and that sample should be 0
87 const AnalogSnapshot::Envelope &e0 = s._envelope_levels[0];
88 BOOST_CHECK_EQUAL(e0.length, 1);
89 BOOST_CHECK_EQUAL(e0.data_length, AnalogSnapshot::EnvelopeDataUnit);
90 BOOST_REQUIRE(e0.samples != NULL);
91 BOOST_CHECK_EQUAL(e0.samples[0].min, 0.0f);
92 BOOST_CHECK_EQUAL(e0.samples[0].max, 1.0f);
94 // The higher levels should still be empty
95 for (unsigned int i = 1; i < AnalogSnapshot::ScaleStepCount; i++)
97 const AnalogSnapshot::Envelope &m = s._envelope_levels[i];
98 BOOST_CHECK_EQUAL(m.length, 0);
99 BOOST_CHECK_EQUAL(m.data_length, 0);
100 BOOST_CHECK(m.samples == NULL);
103 // Push 240 samples of all zeros to bring the total up to 256
104 push_analog(s, 240, -1.0f);
106 BOOST_CHECK_EQUAL(e0.length, 16);
107 BOOST_CHECK_EQUAL(e0.data_length, AnalogSnapshot::EnvelopeDataUnit);
109 for (unsigned int i = 1; i < e0.length; i++) {
110 BOOST_CHECK_EQUAL(e0.samples[i].min, -1.0f);
111 BOOST_CHECK_EQUAL(e0.samples[i].max, -1.0f);
114 const AnalogSnapshot::Envelope &e1 = s._envelope_levels[1];
115 BOOST_CHECK_EQUAL(e1.length, 1);
116 BOOST_CHECK_EQUAL(e1.data_length, AnalogSnapshot::EnvelopeDataUnit);
117 BOOST_REQUIRE(e1.samples != NULL);
118 BOOST_CHECK_EQUAL(e1.samples[0].min, -1.0f);
119 BOOST_CHECK_EQUAL(e1.samples[0].max, 1.0f);
122 BOOST_AUTO_TEST_SUITE_END()