uhd: work on templated property class

1 files changed, 75 insertions, 0 deletions

diff --git a/host/tests/property_test.cpp b/host/tests/property_test.cpp
new file mode 100644
index 000000000..c5ef7f1c9
--- /dev/null
+++ b/host/tests/property_test.cpp
@@ -0,0 +1,75 @@
+//
+// Copyright 2011 Ettus Research LLC
+//
+// 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 3 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, see <http://www.gnu.org/licenses/>.
+//
+
+#include <boost/test/unit_test.hpp>
+#include <uhd/property.hpp>
+#include <boost/bind.hpp>
+
+struct coercer_type{
+    int doit(int x){
+        return x & ~0x3;
+    }
+};
+
+struct setter_type{
+    void doit(int x){
+        _x = x;
+    }
+
+    int _x;
+};
+
+BOOST_AUTO_TEST_CASE(test_prop_simple){
+    uhd::property<int> prop;
+    prop.set(42);
+    BOOST_CHECK_EQUAL(prop.get(), 42);
+    prop.set(34);
+    BOOST_CHECK_EQUAL(prop.get(), 34);
+}
+
+BOOST_AUTO_TEST_CASE(test_prop_with_subscriber){
+    uhd::property<int> prop;
+
+    setter_type setter;
+    prop.subscribe(boost::bind(&setter_type::doit, &setter, _1));
+
+    prop.set(42);
+    BOOST_CHECK_EQUAL(prop.get(), 42);
+    BOOST_CHECK_EQUAL(setter._x, 42);
+
+    prop.set(34);
+    BOOST_CHECK_EQUAL(prop.get(), 34);
+    BOOST_CHECK_EQUAL(setter._x, 34);
+}
+
+BOOST_AUTO_TEST_CASE(test_prop_with_coercion){
+    uhd::property<int> prop;
+
+    setter_type setter;
+    prop.subscribe(boost::bind(&setter_type::doit, &setter, _1));
+
+    coercer_type coercer;
+    prop.subscribe_master(boost::bind(&coercer_type::doit, &coercer, _1));
+
+    prop.set(42);
+    BOOST_CHECK_EQUAL(prop.get(), 40);
+    BOOST_CHECK_EQUAL(setter._x, 40);
+
+    prop.set(34);
+    BOOST_CHECK_EQUAL(prop.get(), 32);
+    BOOST_CHECK_EQUAL(setter._x, 32);
+}