Updated test memavail (heap check)

Author: boriel

tests/runtime/cases/memavail.bas

@@ -0,0 +1,18 @@
+REM fixes heapsize to 4K. Needed for make this test deterministic
+#pragma heap_size = 4096
+
+#include <alloc.bas>
+
+#include "lib/tst_framework.bas"
+
+INIT("Testing heap size")
+
+
+PRINT memavail(); " == "; maxavail(); " ";
+IF memavail() <> maxavail() THEN
+   REPORT_FAIL
+ELSE
+   REPORT_OK
+END IF
+
+