add test for get source url

tests/get_source_url.sh

+#!/bin/sh
+
+. `dirname $0`/../share/eterbuild/functions/common
+load_mod spec rpm
+
+check()
+{
+	[ "$2" != "$3" ] && echo "FATAL with '$1': result '$2' do not match with '$3'" || echo "OK for '$1' with '$2'"
+}
+
+print_spec()
+{
+	echo "%define SourceUrl$1 $2"
+}
+
+check_url()
+{
+	check "$1" "$(print_spec "$3" "$4" | grep -i "^%define ${2}Url${3} " | head -n 1 | sed -e "s/ *\$//g" | sed -e "s/^%define[ \t].*[ \t]//g")" $4
+}
+
+check_url 1 "Source" ""  "http://ftp.ealtlinx.ru/dddd/dddd.tar.bz2"
+check_url 2 "Source" "0" "http://ftp.ealtlinx.ru/dddd/dddd.tar.bz2"
+check_url 3 "Source" "0" "http://ftp.ealtlinx.ru/dddd/dddd.tar.bz2 "