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-rw-r--r--tests/testsuite.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/tests/testsuite.c b/tests/testsuite.c
index 487d6fb..8ad8e95 100644
--- a/tests/testsuite.c
+++ b/tests/testsuite.c
@@ -84,6 +84,8 @@ static void test_swrap_ioctl_tty(void **state)
(void) state; /* unused */
+ memset(&ws, 0, sizeof(struct winsize));
+
rc = ioctl(0, TIOCGWINSZ, &ws);
assert_int_equal(rc, 0);