Implemented Basic analog tests

diff --git a/pv/data/analogsnapshot.h b/pv/data/analogsnapshot.h
index 8eec2797f1a4aa77b5945ccf31f2eef926600dce..59c43187788e4c231dc85d652f0cb849ed5f7a91 100644 (file)
--- a/pv/data/analogsnapshot.h
+++ b/pv/data/analogsnapshot.h
@@ -26,6 +26,10 @@
 #include <utility>
 #include <vector>
 
+namespace AnalogSnapshotTest {
+class Basic;
+}
+
 namespace pv {
 namespace data {
 
@@ -69,6 +73,10 @@ private:
 
 private:
        struct Envelope _envelope_levels[ScaleStepCount];
+
+       friend class AnalogSnapshotTest::Basic;
+};
+
 } // namespace data
 } // namespace pv
 

diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index fdf674f50f6449b330774ec68e0c5856c8c59baf..c283171043dafe9e823cedfb22e70df005121640 100644 (file)
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -25,8 +25,10 @@ find_package(Threads)
 find_package(Boost 1.46 COMPONENTS unit_test_framework REQUIRED)
 
 set(pulseview_TEST_SOURCES
+       ${PROJECT_SOURCE_DIR}/pv/data/analogsnapshot.cpp
        ${PROJECT_SOURCE_DIR}/pv/data/snapshot.cpp
        ${PROJECT_SOURCE_DIR}/pv/data/logicsnapshot.cpp
+       data/analogsnapshot.cpp
        data/logicsnapshot.cpp
        test.cpp
 )

diff --git a/test/data/analogsnapshot.cpp b/test/data/analogsnapshot.cpp
new file mode 100644 (file)
index 0000000..cd1fd77
--- /dev/null
+++ b/test/data/analogsnapshot.cpp
@@ -0,0 +1,125 @@
+/*
+ * 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()