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-rw-r--r--common/tests/test-attrs.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/common/tests/test-attrs.c b/common/tests/test-attrs.c
index 6087191..79895e2 100644
--- a/common/tests/test-attrs.c
+++ b/common/tests/test-attrs.c
@@ -454,6 +454,9 @@ test_hash (void)
assert (p11_attr_hash (&overflow) != hash);
assert (p11_attr_hash (&null) != hash);
assert (p11_attr_hash (&content) != hash);
+
+ hash = p11_attr_hash (NULL);
+ assert (hash == 0);
}
static void