1 files changed, 12 insertions, 0 deletions

diff --git a/tests/userprog/open-twice.ck b/tests/userprog/open-twice.ck
new file mode 100644
index 0000000..64fa805
--- /dev/null
+++ b/tests/userprog/open-twice.ck
@@ -0,0 +1,12 @@
+# -*- perl -*-
+use strict;
+use warnings;
+use tests::tests;
+check_expected ([<<'EOF']);
+(open-twice) begin
+(open-twice) open "sample.txt" once
+(open-twice) open "sample.txt" again
+(open-twice) end
+open-twice: exit(0)
+EOF
+pass;