1 files changed, 37 insertions, 0 deletions
diff --git a/tests/t0022-error-page-headers.sh b/tests/t0022-error-page-headers.sh
new file mode 100755
index 0000000..51fbad8
--- /dev/null
+++ b/tests/t0022-error-page-headers.sh
@@ -0,0 +1,37 @@
+#!/bin/sh
+
+test_description='Check the Expires header on error pages'
+. ./setup.sh
+
+# cgit_vprint_error_page() derives page.expires from cache-dynamic-ttl, which
+# is a count of minutes, while page.expires is an absolute time. Checking the
+# result needs no date arithmetic: a zero TTL has to reproduce Last-Modified
+# exactly, and a non-zero one has to land somewhere else without falling back
+# to the epoch.
+
+header_value() {
+	sed -n "s/^$1: //p" "$2" | tr -d '\r'
+}
+
+test_expect_success 'a non-zero dynamic TTL expires the error page later' '
+	cgit_url "bar/commit/&id=deadbeefdeadbeefdeadbeefdeadbeefdeadbeef" >output &&
+	grep -q "Status: 404 Not found" output &&
+	modified=$(header_value Last-Modified output) &&
+	expires=$(header_value Expires output) &&
+	test -n "$modified" &&
+	test -n "$expires" &&
+	test "$modified" != "$expires" &&
+	case "$expires" in *1970*) return 1 ;; esac
+'
+
+test_expect_success 'a zero dynamic TTL expires the error page immediately' '
+	rm -rf cache && mkdir -p cache &&
+	printf "cache-dynamic-ttl=0\n" >>cgitrc &&
+	cgit_url "bar/commit/&id=deadbeefdeadbeefdeadbeefdeadbeefdeadbeef" >output &&
+	modified=$(header_value Last-Modified output) &&
+	expires=$(header_value Expires output) &&
+	test -n "$modified" &&
+	test "$modified" = "$expires"
+'
+
+test_done