@@ -20,6 +20,15 @@ EOD

 	sed -ne '/%asma-IF-ERROR/,$p' ../projects/software/asma.usm

 }

+expect_failure() {

+    cat > 'in.usm'

+    if ../bin/debugger asma.rom > asma.log 2>/dev/null || ! grep -qF "${1}" asma.log; then

+        echo "error: asma didn't report error ${1} in faulty code"

+		tail asma.log

+        exit 1

+    fi

+}

+

 echo 'Assembling asma with uxnasm'

 build_asma > asma.usm

 ../bin/uxnasm asma.usm asma.rom > uxnasm.log

@@ -44,5 +53,31 @@ find ../projects -type f -name '*.usm' -not -name 'blank.usm' | sort | while rea

 	diff -u "uxnasm-${BN}.hex" "asma-${BN}.hex"

 done

+expect_failure 'Invalid hexadecimal: $defg' <<'EOD'

+|1000 $defg

+EOD

+expect_failure 'Invalid hexadecimal: #defg' <<'EOD'

+|1000 #defg

+EOD

+expect_failure 'Address not in zero page: .hello' <<'EOD'

+|1000 @hello

+	.hello

+EOD

+expect_failure 'Address outside range: ,hello' <<'EOD'

+|1000 @hello

+|2000 ,hello

+EOD

+expect_failure 'Label not found: hello' <<'EOD'

+hello

+EOD

+expect_failure 'Macro already exists: %abc' <<'EOD'

+%abc { def }

+%abc { ghi }

+EOD

+expect_failure 'Memory overwrite: SUB' <<'EOD'

+|2000 ADD

+|1000 SUB

+EOD

+

 echo 'All OK'