1 files changed, 26 insertions, 0 deletions
diff --git a/t/rename_noreplace.t b/t/rename_noreplace.t
new file mode 100644
index 00000000..bd1c4e92
--- /dev/null
+++ b/t/rename_noreplace.t
@@ -0,0 +1,26 @@
+#!perl -w
+# Copyright (C) all contributors <meta@public-inbox.org>
+# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
+use strict;
+use v5.10.1;
+use PublicInbox::TestCommon;
+use_ok 'PublicInbox::Syscall', 'rename_noreplace';
+my ($tmpdir, $for_destroy) = tmpdir;
+
+open my $fh, '>', "$tmpdir/a" or xbail $!;
+my @sa = stat($fh);
+is(rename_noreplace("$tmpdir/a", "$tmpdir/b"), 1, 'rename_noreplace');
+my @sb = stat("$tmpdir/b");
+ok(scalar(@sb), 'new file exists');
+ok(!-e "$tmpdir/a", 'original gone');
+is("@sa[0,1]", "@sb[0,1]", 'same st_dev + st_ino');
+
+is(rename_noreplace("$tmpdir/a", "$tmpdir/c"), undef, 'undef on ENOENT');
+ok($!{ENOENT}, 'ENOENT set when missing');
+
+open $fh, '>', "$tmpdir/a" or xbail $!;
+is(rename_noreplace("$tmpdir/a", "$tmpdir/b"), undef, 'undef on EEXIST');
+ok($!{EEXIST}, 'EEXIST set when missing');
+is_deeply([stat("$tmpdir/b")], \@sb, 'target unchanged on EEXIST');
+
+done_testing;