Fix tests for old nginx

test/6-dual-rsa-ecdsa-copy-2-locations.bats

@@ -40,8 +40,10 @@ teardown() {
     create_certificate
     assert_success
     check_output_for_errors
-    assert_line --partial "rsa certificate installed OK on server"
-    assert_line --partial "prime256v1 certificate installed OK on server"
+    if [ "$OLD_NGINX" = "false" ]; then
+        assert_line --partial "rsa certificate installed OK on server"
+        assert_line --partial "prime256v1 certificate installed OK on server"
+    fi
 
     # Check that the RSA chain and key have been copied to both locations
     assert [ -e "/etc/nginx/pki/domain-chain.crt" ]

test/test_helper.bash

@@ -12,7 +12,7 @@ check_certificates()
 # https://unix.stackexchange.com/questions/285924/how-to-compare-a-programs-version-in-a-shell-script
 check_nginx() {
     requiredver="1.11.0"
-    currentver=$(nginx -v 2>&1)
+    currentver=$(nginx -v 2>&1 | awk -F"/" '{print $2}')
     if [ "$(printf '%s\n' "$requiredver" "$currentver" | sort -V | head -n1)" = "$requiredver" ]; then
         export OLD_NGINX="false"
     else