git-interface: Add test suite and basic tests

Add basic tests for the Git interface. The test suite is based on
sharness.

Signed-off-by: Lukas Fleischer <lfleischer@archlinux.org>

git-interface/test/t0003-update.sh

@@ -0,0 +1,20 @@
+#!/bin/sh
+
+test_description='git-update tests'
+
+. ./setup.sh
+
+test_expect_success 'Test update hook.' '
+	old=0000000000000000000000000000000000000000 &&
+	new=$(git -C aur.git rev-parse HEAD) &&
+	SSH_ORIGINAL_COMMAND="setup-repo foobar" AUR_USER=user "$GIT_SERVE" &&
+	AUR_USER=user AUR_PKGBASE=foobar AUR_PRIVILEGED=0 \
+	"$GIT_UPDATE" refs/heads/master "$old" "$new" 2>&1 &&
+	cat >expected <<-EOF &&
+	1|1|foobar|1-1|aurweb test package.|https://aur.archlinux.org/
+	EOF
+	echo "SELECT * FROM Packages;" | sqlite3 aur.db >actual &&
+	test_cmp expected actual
+'
+
+test_done