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c52a51fac8
* parse.HostPortorFile: return error when 0 found Return an error when we haven't found any nameservers. This is the alternative considered in #3735. It's also slighly less code to be changing. Replaces: #3741 Closes: #3741 #3735 Signed-off-by: Miek Gieben <miek@miek.nl> * Add extra test case here as well Signed-off-by: Miek Gieben <miek@miek.nl>
113 lines
1.9 KiB
Go
113 lines
1.9 KiB
Go
package parse
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import (
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"io/ioutil"
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"os"
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"testing"
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"github.com/coredns/coredns/plugin/pkg/transport"
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)
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func TestHostPortOrFile(t *testing.T) {
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tests := []struct {
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in string
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expected string
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shouldErr bool
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}{
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{
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"8.8.8.8",
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"8.8.8.8:53",
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false,
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},
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{
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"8.8.8.8:153",
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"8.8.8.8:153",
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false,
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},
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{
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"/etc/resolv.conf:53",
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"",
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true,
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},
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{
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"resolv.conf",
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"127.0.0.1:53",
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false,
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},
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{
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"fe80::1",
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"[fe80::1]:53",
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false,
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},
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{
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"fe80::1%ens3",
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"[fe80::1%ens3]:53",
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false,
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},
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{
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"[fd01::1]:153",
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"[fd01::1]:153",
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false,
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},
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{
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"[fd01::1%ens3]:153",
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"[fd01::1%ens3]:153",
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false,
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},
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{
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"8.9.1043",
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"",
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true,
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},
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}
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err := ioutil.WriteFile("resolv.conf", []byte("nameserver 127.0.0.1\n"), 0600)
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if err != nil {
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t.Fatalf("Failed to write test resolv.conf")
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}
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defer os.Remove("resolv.conf")
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for i, tc := range tests {
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got, err := HostPortOrFile(tc.in)
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if err == nil && tc.shouldErr {
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t.Errorf("Test %d, expected error, got nil", i)
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continue
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}
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if err != nil && tc.shouldErr {
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continue
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}
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if got[0] != tc.expected {
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t.Errorf("Test %d, expected %q, got %q", i, tc.expected, got[0])
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}
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}
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}
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func TestParseHostPort(t *testing.T) {
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tests := []struct {
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in string
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expected string
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shouldErr bool
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}{
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{"8.8.8.8:53", "8.8.8.8:53", false},
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{"a.a.a.a:153", "", true},
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{"8.8.8.8", "8.8.8.8:53", false},
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{"8.8.8.8:", "8.8.8.8:53", false},
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{"8.8.8.8::53", "", true},
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{"resolv.conf", "", true},
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}
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for i, tc := range tests {
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got, err := HostPort(tc.in, transport.Port)
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if err == nil && tc.shouldErr {
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t.Errorf("Test %d, expected error, got nil", i)
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continue
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}
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if err != nil && !tc.shouldErr {
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t.Errorf("Test %d, expected no error, got %q", i, err)
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}
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if got != tc.expected {
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t.Errorf("Test %d, expected %q, got %q", i, tc.expected, got)
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}
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}
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}
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