From d4522b8e9854178473adcea0fbb84f23f6e744bd Mon Sep 17 00:00:00 2001 From: Felipe Boeira Date: Tue, 8 Jan 2019 18:39:03 +0100 Subject: Initial commit --- src/tests/userprog/open-twice.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 src/tests/userprog/open-twice.c (limited to 'src/tests/userprog/open-twice.c') diff --git a/src/tests/userprog/open-twice.c b/src/tests/userprog/open-twice.c new file mode 100644 index 0000000..dd333af --- /dev/null +++ b/src/tests/userprog/open-twice.c @@ -0,0 +1,19 @@ +/* Tries to open the same file twice, + which must succeed and must return a different file descriptor + in each case. */ + +#include +#include "tests/lib.h" +#include "tests/main.h" + +void +test_main (void) +{ + int h1 = open ("sample.txt"); + int h2 = open ("sample.txt"); + + CHECK ((h1 = open ("sample.txt")) > 1, "open \"sample.txt\" once"); + CHECK ((h2 = open ("sample.txt")) > 1, "open \"sample.txt\" again"); + if (h1 == h2) + fail ("open() returned %d both times", h1); +} -- cgit v1.2.1