X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=test%2Futil.cpp;fp=test%2Futil.cpp;h=1e33790b4316d5894b54355ac5b50e8bab744ef8;hp=0000000000000000000000000000000000000000;hb=f52be90d7f12fc07f71b75a104abefd02aa03ed2;hpb=60d9b99a32e551cffd2b537d3e157d578a761c9b

diff --git a/test/util.cpp b/test/util.cpp
new file mode 100644
index 00000000..1e33790b
--- /dev/null
+++ b/test/util.cpp
@@ -0,0 +1,144 @@
+/*
+ * This file is part of the PulseView project.
+ *
+ * Copyright (C) 2015 Jens Steinhauser <jens.steinhauser@gmail.com>
+ *
+ * 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 <boost/test/unit_test.hpp>
+
+#include "pv/util.hpp"
+
+using namespace pv::util;
+using ts = pv::util::Timestamp;
+
+namespace {
+	QChar mu = QChar(0x03BC);
+}
+
+std::ostream& operator<<(std::ostream& stream, const QString& str)
+{
+	return stream << str.toUtf8().data();
+}
+
+BOOST_AUTO_TEST_SUITE(UtilTest)
+
+BOOST_AUTO_TEST_CASE(format_si_value_test)
+{
+	// check prefix calculation
+
+	BOOST_CHECK_EQUAL(format_si_value(ts("0"), "V"), "0 V");
+
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e-24"), "V"),   "+1 yV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e-23"), "V"),  "+10 yV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e-22"), "V"), "+100 yV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e-21"), "V"),   "+1 zV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e-20"), "V"),  "+10 zV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e-19"), "V"), "+100 zV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e-18"), "V"),   "+1 aV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e-17"), "V"),  "+10 aV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e-16"), "V"), "+100 aV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e-15"), "V"),   "+1 fV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e-14"), "V"),  "+10 fV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e-13"), "V"), "+100 fV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e-12"), "V"),   "+1 pV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e-11"), "V"),  "+10 pV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e-10"), "V"), "+100 pV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e-9"), "V"),    "+1 nV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e-8"), "V"),   "+10 nV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e-7"), "V"),  "+100 nV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e-6"), "V"),   QString("+1 ") + mu + "V");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e-5"), "V"),  QString("+10 ") + mu + "V");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e-4"), "V"), QString("+100 ") + mu + "V");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e-3"), "V"),    "+1 mV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e-2"), "V"),   "+10 mV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e-1"), "V"),  "+100 mV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e0"), "V"),      "+1 V");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e1"), "V"),     "+10 V");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e2"), "V"),    "+100 V");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e3"), "V"),     "+1 kV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e4"), "V"),    "+10 kV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e5"), "V"),   "+100 kV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e6"), "V"),     "+1 MV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e7"), "V"),    "+10 MV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e8"), "V"),   "+100 MV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e9"), "V"),     "+1 GV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e10"), "V"),   "+10 GV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e11"), "V"),  "+100 GV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e12"), "V"),    "+1 TV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e13"), "V"),   "+10 TV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e14"), "V"),  "+100 TV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e15"), "V"),    "+1 PV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e16"), "V"),   "+10 PV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e17"), "V"),  "+100 PV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e18"), "V"),    "+1 EV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e19"), "V"),   "+10 EV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e20"), "V"),  "+100 EV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e21"), "V"),    "+1 ZV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e22"), "V"),   "+10 ZV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e23"), "V"),  "+100 ZV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e24"), "V"),    "+1 YV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e25"), "V"),   "+10 YV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e26"), "V"),  "+100 YV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e27"), "V"), "+1000 YV");
+
+	BOOST_CHECK_EQUAL(format_si_value(ts("1234"), "V"),           "+1 kV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1234"), "V", 9, 3), "+1.234 kV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1234.5678"), "V"),      "+1 kV");
+
+	// check if a given prefix is honored
+
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e-24"), "V", 0),    "+1 yV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e-21"), "V", 0), "+1000 yV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("0"), "V", 0),         "0 yV");
+
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e-4"), "V", 7),       "+0 mV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e-4"), "V", 7, 1),  "+0.1 mV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1000"), "V", 7), "+1000000 mV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("0"), "V", 7),           "0 mV");
+
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e-1"), "V", 8),       "+0 V");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e-1"), "V", 8, 1),  "+0.1 V");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e-1"), "V", 8, 2), "+0.10 V");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1"), "V", 8),          "+1 V");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e1"), "V", 8),       "+10 V");
+
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e23"), "V", 16),       "+0 YV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e23"), "V", 16, 1),  "+0.1 YV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1e27"), "V", 16),    "+1000 YV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("0"), "V", 16),           "0 YV");
+
+	// check precision
+
+	BOOST_CHECK_EQUAL(format_si_value(ts("1.2345678"), "V"),                "+1 V");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1.4"), "V"),                      "+1 V");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1.5"), "V"),                      "+2 V");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1.9"), "V"),                      "+2 V");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1.2345678"), "V", -1, 2),      "+1.23 V");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1.2345678"), "V", -1, 3),     "+1.235 V");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1.2345678"), "V", 7, 3),  "+1234.568 mV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1.2345678"), "V", 7, 0),      "+1235 mV");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1.2"), "V", -1, 3),           "+1.200 V");
+
+	// check sign
+
+	BOOST_CHECK_EQUAL(format_si_value(ts("-1"), "V", 8, 0, true),  "-1 V");
+	BOOST_CHECK_EQUAL(format_si_value(ts("-1"), "V", 8, 0, false), "-1 V");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1"), "V", 8, 0, true),   "+1 V");
+	BOOST_CHECK_EQUAL(format_si_value(ts("1"), "V", 8, 0, false),   "1 V");
+}
+
+BOOST_AUTO_TEST_SUITE_END()