| package iso |
| |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| import ( |
| "strings" |
| "testing" |
| ) |
| |
| func TestParseResolve(t *testing.T) { |
| cases := []struct { |
| name string |
| input string |
| expected []string |
| }{ |
| { |
| "empty", |
| "", |
| nil, |
| }, |
| { |
| "comments", |
| `# nameserver 127.0.0.1 |
| # nameserver 192.168.1.1`, |
| nil, |
| }, |
| { |
| "invalid IPs", |
| `# /etc/resolv.conf |
| nameserver not.an.ip |
| nameserver |
| nameserver 1 |
| `, |
| nil, |
| }, |
| { |
| "single", |
| `# /etc/resolv.conf |
| nameserver 127.0.0.1 |
| `, |
| []string{"127.0.0.1"}, |
| }, |
| { |
| "multi", |
| `# /etc/resolv.conf |
| # IPv4 |
| nameserver 127.0.0.1 |
| nameserver 192.168.1.10 |
| # IPv6 |
| nameserver beef::1 |
| nameserver ::0 |
| `, |
| []string{"127.0.0.1", "192.168.1.10", "beef::1", "::0"}, |
| }, |
| } |
| |
| for _, tc := range cases { |
| tc := tc |
| t.Run(tc.name, func(t *testing.T) { |
| got, err := parseResolve(strings.NewReader(tc.input)) |
| if err != nil { |
| t.Fatalf("parseResolve() err = %v", err) |
| } |
| |
| if lGot, lExpected := len(got), len(tc.expected); lGot != lExpected { |
| t.Fatalf("got %d nameservers; expected %d", lGot, lExpected) |
| } |
| |
| for i, expectedNS := range tc.expected { |
| if gotNS := got[i]; gotNS != expectedNS { |
| t.Errorf("got nameserver[%d] = %q; expected %q", i, gotNS, expectedNS) |
| } |
| } |
| |
| t.Logf("parseResolve(): %v", got) |
| }) |
| } |
| } |