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https://github.com/mjl-/mox.git
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58 lines
2 KiB
Go
58 lines
2 KiB
Go
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package smtpclient
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import (
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"context"
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"net"
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"reflect"
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"testing"
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"time"
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"github.com/mjl-/mox/dns"
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"github.com/mjl-/mox/mlog"
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)
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func TestDialHost(t *testing.T) {
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// We mostly want to test that dialing a second time switches to the other address family.
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ctxbg := context.Background()
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log := mlog.New("smtpclient")
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resolver := dns.MockResolver{
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A: map[string][]string{
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"dualstack.example.": {"10.0.0.1"},
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},
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AAAA: map[string][]string{
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"dualstack.example.": {"2001:db8::1"},
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},
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}
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DialHook = func(ctx context.Context, dialer Dialer, timeout time.Duration, addr string, laddr net.Addr) (net.Conn, error) {
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return nil, nil // No error, nil connection isn't used.
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}
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defer func() {
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DialHook = nil
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}()
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ipdomain := func(s string) dns.IPDomain {
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return dns.IPDomain{Domain: dns.Domain{ASCII: s}}
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}
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dialedIPs := map[string][]net.IP{}
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_, _, _, ips, dualstack, err := GatherIPs(ctxbg, log, resolver, ipdomain("dualstack.example"), dialedIPs)
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if err != nil || !reflect.DeepEqual(ips, []net.IP{net.ParseIP("10.0.0.1"), net.ParseIP("2001:db8::1")}) || !dualstack {
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t.Fatalf("expected err nil, address 10.0.0.1,2001:db8::1, dualstack true, got %v %v %v", err, ips, dualstack)
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}
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_, ip, err := Dial(ctxbg, log, nil, ipdomain("dualstack.example"), ips, 25, dialedIPs)
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if err != nil || ip.String() != "10.0.0.1" {
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t.Fatalf("expected err nil, address 10.0.0.1, dualstack true, got %v %v %v", err, ip, dualstack)
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}
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_, _, _, ips, dualstack, err = GatherIPs(ctxbg, log, resolver, ipdomain("dualstack.example"), dialedIPs)
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if err != nil || !reflect.DeepEqual(ips, []net.IP{net.ParseIP("2001:db8::1"), net.ParseIP("10.0.0.1")}) || !dualstack {
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t.Fatalf("expected err nil, address 2001:db8::1,10.0.0.1, dualstack true, got %v %v %v", err, ips, dualstack)
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}
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_, ip, err = Dial(ctxbg, log, nil, ipdomain("dualstack.example"), ips, 25, dialedIPs)
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if err != nil || ip.String() != "2001:db8::1" {
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t.Fatalf("expected err nil, address 2001:db8::1, dualstack true, got %v %v %v", err, ip, dualstack)
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}
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}
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