1 files changed, 143 insertions, 0 deletions
diff --git a/host/tests/node_connect_test.cpp b/host/tests/node_connect_test.cpp
new file mode 100644
index 000000000..ff01828e3
--- /dev/null
+++ b/host/tests/node_connect_test.cpp
@@ -0,0 +1,143 @@
+//
+// Copyright 2014 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 "graph.hpp"
+#include <boost/test/unit_test.hpp>
+#include <iostream>
+
+using namespace uhd::rfnoc;
+
+class source_node : public test_node
+{
+public:
+    typedef boost::shared_ptr<source_node> sptr;
+
+    source_node(const std::string &test_id, size_t output_port)
+        : test_node(test_id)
+        , active_rx_streamer_on_port(0)
+        , _output_port(output_port) {};
+
+    void set_rx_streamer(bool active, const size_t port)
+    {
+        if (active) {
+            std::cout << "[source_node] Someone is registering a rx streamer on port " << port << std::endl;
+            active_rx_streamer_on_port = port;
+        }
+    }
+    size_t active_rx_streamer_on_port;
+
+protected:
+    size_t _request_output_port(
+            const size_t,
+            const uhd::device_addr_t &
+    ) const {
+        return _output_port;
+    }
+
+    const size_t _output_port;
+
+}; /* class result_node */
+
+class sink_node : public test_node
+{
+public:
+    typedef boost::shared_ptr<sink_node> sptr;
+
+    sink_node(const std::string &test_id, size_t input_port)
+        : test_node(test_id)
+        , active_tx_streamer_on_port(0)
+        , _input_port(input_port) {};
+
+    void set_tx_streamer(bool active, const size_t port)
+    {
+        if (active) {
+            std::cout << "[sink_node] Someone is registering a tx streamer on port " << port << std::endl;
+            active_tx_streamer_on_port = port;
+        }
+    }
+    size_t active_tx_streamer_on_port;
+
+protected:
+    size_t _request_input_port(
+            const size_t,
+            const uhd::device_addr_t &
+    ) const {
+        return _input_port;
+    }
+
+    const size_t _input_port;
+
+}; /* class result_node */
+
+#define MAKE_SOURCE_NODE(name, port) source_node::sptr name(new source_node(#name, port));
+#define MAKE_SINK_NODE(name, port) sink_node::sptr name(new sink_node(#name, port));
+
+BOOST_AUTO_TEST_CASE(test_simple_connect)
+{
+    MAKE_SOURCE_NODE(node_A, 42);
+    MAKE_SINK_NODE(node_B, 23);
+
+    size_t src_port = node_A->connect_downstream(node_B, 1);
+    size_t dst_port = node_B->connect_upstream(node_A, 2);
+
+    BOOST_CHECK_EQUAL(src_port, 42);
+    BOOST_CHECK_EQUAL(dst_port, 23);
+
+    node_A->set_downstream_port(src_port, dst_port);
+    node_B->set_upstream_port(dst_port, src_port);
+    BOOST_CHECK_EQUAL(node_A->get_downstream_port(src_port), dst_port);
+    BOOST_CHECK_EQUAL(node_B->get_upstream_port(dst_port), src_port);
+
+    BOOST_REQUIRE_THROW(node_A->get_downstream_port(999), uhd::value_error);
+}
+
+BOOST_AUTO_TEST_CASE(test_fail)
+{
+    MAKE_SOURCE_NODE(node_A, 42);
+    MAKE_SINK_NODE(node_B, ANY_PORT);
+
+    node_A->connect_downstream(node_B, 1);
+    BOOST_REQUIRE_THROW(node_B->connect_upstream(node_A, 2), uhd::type_error);
+}
+
+BOOST_AUTO_TEST_CASE(test_set_streamers)
+{
+    MAKE_SOURCE_NODE(node_A, 0);
+    MAKE_NODE(node_B);
+    MAKE_SINK_NODE(node_C, 0);
+
+    size_t src_port_A = node_A->connect_downstream(node_B, 0);
+    size_t src_port_B = node_B->connect_downstream(node_C, 0);
+    size_t dst_port_B = node_B->connect_upstream(node_A, 0);
+    size_t dst_port_C = node_C->connect_upstream(node_B, 0);
+
+    std::cout << "src_port_A: " << src_port_A << std::endl;
+    std::cout << "src_port_B: " << src_port_B << std::endl;
+    std::cout << "dst_port_B: " << dst_port_B << std::endl;
+    std::cout << "dst_port_C: " << dst_port_C << std::endl;
+
+    node_A->set_downstream_port(src_port_A, dst_port_B);
+    node_B->set_upstream_port(dst_port_B, src_port_A);
+    node_B->set_downstream_port(src_port_B, dst_port_C);
+    node_C->set_upstream_port(dst_port_C, src_port_B);
+
+    node_A->set_tx_streamer(true, 0);
+    node_C->set_rx_streamer(true, 0);
+
+    BOOST_CHECK_EQUAL(node_A->active_rx_streamer_on_port, src_port_A);
+    BOOST_CHECK_EQUAL(node_C->active_tx_streamer_on_port, dst_port_C);
+}