vnf: convert StatusRegister.break_mark to Option<u8>

Instead of assuming a default value, it's safer to just implement it in
Rust's native Option<_> type.

Signed-off-by: Miquel Sabaté Solà <mssola@mssola.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/tests/vnf-tests/src/main.rs b/tests/vnf-tests/src/main.rs
index 96e3b95..1f79655 100644
--- a/tests/vnf-tests/src/main.rs
+++ b/tests/vnf-tests/src/main.rs
@@ -88,10 +88,10 @@ fn run_break_mark_test(path: &Path) -> Result<(), String> {
     ));
 
     // Before vs after running 'brk'.
-    assert_eq!(machine.status_register.break_mark, 0);
+    assert!(machine.status_register.break_mark.is_none());
     assert!(!machine.status_register.brk);
     let _ = machine.next_iteration();
-    assert_eq!(machine.status_register.break_mark, 0x42);
+    assert_eq!(machine.status_register.break_mark.unwrap(), 0x42);
     assert!(machine.status_register.brk);
 
     // Skip instructions we don't care about here.
@@ -104,12 +104,12 @@ fn run_break_mark_test(path: &Path) -> Result<(), String> {
         machine.current_instruction.identifier,
         InstructionIdentifier::Plp
     ));
-    assert_eq!(machine.status_register.break_mark, 0x42);
+    assert_eq!(machine.status_register.break_mark.unwrap(), 0x42);
     assert!(machine.status_register.brk);
 
     // After running 'plp'.
     let _ = machine.next_iteration();
-    assert_eq!(machine.status_register.break_mark, 0x00);
+    assert!(machine.status_register.break_mark.is_none());
     assert!(!machine.status_register.brk);
 
     Ok(())