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-rw-r--r--xt/git-http-backend.t20
1 files changed, 20 insertions, 0 deletions
diff --git a/xt/git-http-backend.t b/xt/git-http-backend.t
index 421c6316..7f34d452 100644
--- a/xt/git-http-backend.t
+++ b/xt/git-http-backend.t
@@ -8,6 +8,7 @@ use warnings;
 use Test::More;
 use POSIX qw(setsid);
 use PublicInbox::TestCommon;
+use PublicInbox::Spawn qw(which);
 
 my $git_dir = $ENV{GIANT_GIT_DIR};
 plan 'skip_all' => 'GIANT_GIT_DIR not defined' unless $git_dir;
@@ -74,6 +75,25 @@ SKIP: {
         }
 }
 
+SKIP: { # make sure Last-Modified + If-Modified-Since works with curl
+        my $nr = 6;
+        skip 'no description', $nr unless -f "$git_dir/description";
+        my $mtime = (stat(_))[9];
+        my $curl = which('curl');
+        skip 'curl(1) not found', $nr unless $curl;
+        my $url = "http://$host:$port/description";
+        my $dst = "$tmpdir/desc";
+        is(system($curl, qw(-RsSf), '-o', $dst, $url), 0, 'curl -R');
+        is((stat($dst))[9], $mtime, 'curl used remote mtime');
+        is(system($curl, qw(-sSf), '-z', $dst, '-o', "$dst.2", $url), 0,
+                'curl -z noop');
+        ok(!-e "$dst.2", 'no modification, nothing retrieved');
+        utime(0, 0, $dst) or die "utime failed: $!";
+        is(system($curl, qw(-sSfR), '-z', $dst, '-o', "$dst.2", $url), 0,
+                'curl -z updates');
+        ok(-e "$dst.2", 'faked modification, got new file retrieved');
+}
+
 {
         my $c = fork;
         if ($c == 0) {