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			39 lines
		
	
	
		
			917 B
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			39 lines
		
	
	
		
			917 B
		
	
	
	
		
			Go
		
	
	
	
	
	
package cache
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import (
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	"context"
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	"testing"
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	"github.com/coredns/coredns/plugin"
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	"github.com/coredns/coredns/plugin/pkg/dnstest"
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	"github.com/coredns/coredns/plugin/test"
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	"github.com/miekg/dns"
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)
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func TestFormErr(t *testing.T) {
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	c := New()
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	c.Next = formErrHandler()
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	req := new(dns.Msg)
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	req.SetQuestion("example.org.", dns.TypeA)
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	rec := dnstest.NewRecorder(&test.ResponseWriter{})
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	c.ServeDNS(context.TODO(), rec, req)
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	if c.pcache.Len() != 0 {
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		t.Errorf("Cached %s, while reply had %d", "example.org.", rec.Msg.Rcode)
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	}
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}
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// formErrHandler is a fake plugin implementation which returns a FORMERR for a reply.
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func formErrHandler() plugin.Handler {
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	return plugin.HandlerFunc(func(ctx context.Context, w dns.ResponseWriter, r *dns.Msg) (int, error) {
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		m := new(dns.Msg)
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		m.SetQuestion("example.net.", dns.TypeA)
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		m.Rcode = dns.RcodeFormatError
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		w.WriteMsg(m)
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		return dns.RcodeSuccess, nil
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	})
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}
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