1 files changed, 96 insertions, 0 deletions
diff --git a/debian/tests/shared-functions.sh b/debian/tests/shared-functions.sh
new file mode 100644
index 0000000..13797d0
--- /dev/null
+++ b/debian/tests/shared-functions.sh
@@ -0,0 +1,96 @@
+# shellcheck shell=dash
+
+check_line () {
+	local db="$1"
+	local expected_services="$2"
+
+	local expected_line="$db:    $expected_services"
+	local new_line
+
+	if ! new_line=$(grep "^$1:" /etc/nsswitch.conf) ; then
+		echo "ERROR: DB $db not found in /etc/nsswitch.conf" >&2
+		exit 2
+	fi
+
+	local num_db_lines
+	num_db_lines="$(echo "$new_line" | wc -l)"
+	if [ "$num_db_lines" -ne 1 ] ; then
+		echo "ERROR: Too many lines for DB $db: $num_db_lines" >&2
+		exit 3
+	fi
+
+	if [ "$new_line" != "$expected_line" ] ; then
+		echo "ERROR: Wrong db line in /etc/nsswitch.conf" >&2
+		echo "   found: \`$new_line'" >&2
+		echo "expected: \`$expected_line'" >&2
+		exit 4
+	fi
+
+	echo "OK"
+}
+
+
+setup_pkg () {
+	local pkgname=$1
+	local testname=$2
+
+	mkdir debian
+
+	cat <<EOF > debian/control
+Source: $pkgname
+Section: devel
+Priority: optional
+Maintainer: Test User <test@example.org>
+Rules-Requires-Root: no
+Build-Depends: debhelper-compat (= 13), dh-sequence-installnss
+Standards-Version: 4.6.1
+
+Package: $pkgname
+Architecture: all
+Description: Test package for dh-nss ($testname)
+ Test package for dh-nss ($testname)
+EOF
+
+	cat <<EOF > debian/rules
+#!/usr/bin/make -f
+%:
+	dh \$@
+EOF
+	chmod +x debian/rules
+}
+
+build_pkg () {
+	pkgname="$1"
+	pkgversion="$2"
+	nss_lines="$3"
+
+	echo "$nss_lines" > debian/nss
+
+	cat <<EOF > debian/changelog
+$pkgname ($pkgversion) unstable; urgency=medium
+
+  * Test build
+
+ -- Test User <test@example.org>  Sun, 06 Aug 2022 11:22:33 +0200
+EOF
+
+	dpkg-buildpackage --no-sign --build=binary
+}
+
+NSSWITCH_CONF="
+# /etc/nsswitch.conf
+
+passwd:         files
+group:          files
+shadow:         files
+gshadow:        files
+
+hosts:    files dns
+networks: files
+
+protocols:      db files
+services:       db files
+ethers:         db files
+rpc:            db files
+
+netgroup:       nis"