1 files changed, 27 insertions, 0 deletions

diff --git a/tests/core_api.c b/tests/core_api.c
index 5e7ff65..84d4a18 100644
--- a/tests/core_api.c
+++ b/tests/core_api.c
@@ -10,3 +10,30 @@ TESTCASE(set_rt_task_param_invalid_pointer, ALL,
 
         SYSCALL_FAILS( EFAULT, set_rt_task_param(gettid(), (void*) 0x123 ));
 }
+
+TESTCASE(set_rt_task_param_invalid_params, ALL,
+         "reject invalid rt_task values")
+{
+        struct rt_task params;
+        params.cpu        = 0;
+        params.period     = 100;
+        params.phase      = 0;
+        params.cls        = RT_CLASS_HARD;
+
+        /* over utilize */
+        params.exec_cost  = 110;
+        SYSCALL_FAILS( EINVAL, set_rt_task_param(gettid(), &params) );
+
+        /* bad CPU */
+        params.exec_cost = 90;
+        params.cpu       = -1;
+        SYSCALL_FAILS( EINVAL, set_rt_task_param(gettid(), &params) );
+
+        /* bad task */
+        params.cpu  = 0;
+        SYSCALL_FAILS( EINVAL, set_rt_task_param(-1, &params) );
+
+
+        /* now try correct params */
+        SYSCALL( set_rt_task_param(gettid(), &params) );
+}