test-dir-iterator: do not assume errno values

diff --git a/t/t1507-rev-parse-upstream.sh b/t/t1507-rev-parse-upstream.sh
index 93c77eac45321cb24823431c4d89dc393049edbf..fa3e4996418d6d78afa31e9be19b6c77b22cd819 100755 (executable)
--- a/t/t1507-rev-parse-upstream.sh
+++ b/t/t1507-rev-parse-upstream.sh
@@ -123,9 +123,9 @@ test_expect_success 'checkout -b new my-side@{u} forks from the same' '
 
 test_expect_success 'merge my-side@{u} records the correct name' '
 (
-       cd clone || exit
-       git checkout master || exit
-       git branch -D new ;# can fail but is ok
+       cd clone &&
+       git checkout master &&
+       test_might_fail git branch -D new &&
        git branch -t new my-side@{u} &&
        git merge -s ours new@{u} &&
        git show -s --pretty=tformat:%s >actual &&
@@ -138,8 +138,7 @@ test_expect_success 'branch -d other@{u}' '
        git checkout -t -b other master &&
        git branch -d @{u} &&
        git for-each-ref refs/heads/master >actual &&
-       >expect &&
-       test_cmp expect actual
+       test_must_be_empty actual
 '
 
 test_expect_success 'checkout other@{u}' '