Adapt programs / test suites to _init() and _free()
diff --git a/tests/suites/test_suite_arc4.function b/tests/suites/test_suite_arc4.function
index 73df59e..f55a5e8 100644
--- a/tests/suites/test_suite_arc4.function
+++ b/tests/suites/test_suite_arc4.function
@@ -22,6 +22,7 @@
     memset(key_str, 0x00, 1000);
     memset(dst_str, 0x00, 1000);
     memset(dst_hexstr, 0x00, 2000);
+    arc4_init( &ctx );
 
     src_len = unhexify( src_str, hex_src_string );
     key_len = unhexify( key_str, hex_key_string );
@@ -31,6 +32,8 @@
     hexify( dst_hexstr, dst_str, src_len );
 
     TEST_ASSERT( strcmp( (char *) dst_hexstr, hex_dst_string ) == 0 );
+
+    arc4_free( &ctx );
 }
 /* END_CASE */