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This middleware allows playing with responses. Only one type is implemented: it allows you to drop queries. I.e. withhold the response from the client.
46 lines
1.0 KiB
Go
46 lines
1.0 KiB
Go
package erratic
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import (
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"testing"
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"github.com/miekg/coredns/middleware/pkg/dnsrecorder"
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"github.com/miekg/coredns/middleware/test"
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"github.com/miekg/dns"
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"golang.org/x/net/context"
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)
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func TestErraticDrop(t *testing.T) {
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e := &Erratic{amount: 2} // 50% drops
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tests := []struct {
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expectedCode int
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expectedErr error
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drop bool
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}{
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{expectedCode: dns.RcodeSuccess, expectedErr: nil, drop: true},
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{expectedCode: dns.RcodeSuccess, expectedErr: nil, drop: false},
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}
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ctx := context.TODO()
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for i, tc := range tests {
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req := new(dns.Msg)
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req.SetQuestion("example.org.", dns.TypeA)
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rec := dnsrecorder.New(&test.ResponseWriter{})
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code, err := e.ServeDNS(ctx, rec, req)
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if err != tc.expectedErr {
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t.Errorf("Test %d: Expected error %q, but got %q", i, tc.expectedErr, err)
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}
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if code != int(tc.expectedCode) {
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t.Errorf("Test %d: Expected status code %d, but got %d", i, tc.expectedCode, code)
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}
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if tc.drop && rec.Msg != nil {
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t.Errorf("Test %d: Expected dropped packet, but got %q", i, rec.Msg.Question[0].Name)
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}
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}
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}
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