test: treat undefined feature variables as 0

[notmuch] / test / T010-help-test.sh

diff --git a/test/T010-help-test.sh b/test/T010-help-test.sh
index da45d3aecf7ae7a0c6e86be06f6d21155c50129b..1fbc46a2dc4a95bbc2f618d8dec606ccee75c788 100755 (executable)
--- a/test/T010-help-test.sh
+++ b/test/T010-help-test.sh
@@ -12,7 +12,7 @@ test_expect_success 'notmuch help'
 test_begin_subtest 'notmuch --version'
 test_expect_success 'notmuch --version'
 
-if [ $NOTMUCH_HAVE_MAN -eq 1 ]; then
+if [ "${NOTMUCH_HAVE_MAN-0}" = "1" ]; then
     test_begin_subtest 'notmuch --help tag'
     test_expect_success 'notmuch --help tag'