Add ccm_init/free()
diff --git a/tests/suites/test_suite_ccm.function b/tests/suites/test_suite_ccm.function
index 487d1c5..7137a60 100644
--- a/tests/suites/test_suite_ccm.function
+++ b/tests/suites/test_suite_ccm.function
@@ -13,3 +13,20 @@
     TEST_ASSERT( ccm_self_test( 0 ) == 0 );
 }
 /* END_CASE */
+
+/* BEGIN_CASE */
+void ccm_init( int cipher_id, int key_size, int result )
+{
+    ccm_context ctx;
+    unsigned char key[32];
+    int ret;
+
+    memset( key, 0x2A, sizeof( key ) );
+    TEST_ASSERT( (unsigned) key_size <= 8 * sizeof( key ) );
+
+    ret = ccm_init( &ctx, cipher_id, key, key_size );
+    TEST_ASSERT( ret == result );
+
+    ccm_free( &ctx );
+}
+/* END_CASE */