1 files changed, 35 insertions, 1 deletions
diff --git a/serial_link/tests/frame_router_tests.c b/serial_link/tests/frame_router_tests.c
index 6b00aca677..0b0ea6e7f4 100644
--- a/serial_link/tests/frame_router_tests.c
+++ b/serial_link/tests/frame_router_tests.c
@@ -174,7 +174,6 @@ Ensure(FrameRouter, first_link_sends_to_master) {
 }
 
 Ensure(FrameRouter, second_link_sends_to_master) {
-    printf("Second to master start\n");
     frame_buffer_t data;
     data.data = 0xAB7055BB;
     activate_router(2);
@@ -195,3 +194,38 @@ Ensure(FrameRouter, second_link_sends_to_master) {
     assert_that(router_buffers[0].send_buffers[DOWN_LINK].sent_data_size, is_equal_to(0));
     assert_that(router_buffers[0].send_buffers[UP_LINK].sent_data_size, is_equal_to(0));
 }
+
+Ensure(FrameRouter, master_sends_to_master_does_nothing) {
+    frame_buffer_t data;
+    data.data = 0xAB7055BB;
+    activate_router(0);
+    router_send_frame(0, (uint8_t*)&data, 4);
+    assert_that(router_buffers[0].send_buffers[UP_LINK].sent_data_size, is_equal_to(0));
+    assert_that(router_buffers[0].send_buffers[DOWN_LINK].sent_data_size, is_equal_to(0));
+}
+
+Ensure(FrameRouter, link_sends_to_other_link_does_nothing) {
+    frame_buffer_t data;
+    data.data = 0xAB7055BB;
+    activate_router(1);
+    router_send_frame(2, (uint8_t*)&data, 4);
+    assert_that(router_buffers[1].send_buffers[UP_LINK].sent_data_size, is_equal_to(0));
+    assert_that(router_buffers[1].send_buffers[DOWN_LINK].sent_data_size, is_equal_to(0));
+}
+
+Ensure(FrameRouter, master_receives_on_uplink_does_nothing) {
+    frame_buffer_t data;
+    data.data = 0xAB7055BB;
+    activate_router(1);
+    router_send_frame(0, (uint8_t*)&data, 4);
+    assert_that(router_buffers[1].send_buffers[UP_LINK].sent_data_size, is_greater_than(0));
+    assert_that(router_buffers[1].send_buffers[DOWN_LINK].sent_data_size, is_equal_to(0));
+
+    never_expect(transport_recv_frame);
+    activate_router(0);
+    receive_data(UP_LINK,
+        router_buffers[1].send_buffers[UP_LINK].sent_data,
+        router_buffers[1].send_buffers[UP_LINK].sent_data_size);
+    assert_that(router_buffers[0].send_buffers[UP_LINK].sent_data_size, is_equal_to(0));
+    assert_that(router_buffers[0].send_buffers[DOWN_LINK].sent_data_size, is_equal_to(0));
+}