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https://github.com/coredns/coredns.git
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5ace19d455
* plugin/forward add ignore_server_failure for masking upstream server faults Signed-off-by: schou <pschou@users.noreply.github.com> * Switch from a ignore_server_fail to a rewrite rcode type. Signed-off-by: schou <pschou@users.noreply.github.com> * trim down the tests Signed-off-by: schou <pschou@users.noreply.github.com> * fixing readme TTL and using map for rcode Signed-off-by: schou <pschou@users.noreply.github.com> * add newline Signed-off-by: schou <pschou@users.noreply.github.com> --------- Signed-off-by: schou <pschou@users.noreply.github.com>
73 lines
2.2 KiB
Go
73 lines
2.2 KiB
Go
package rewrite
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import (
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"testing"
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"github.com/coredns/coredns/plugin/test"
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"github.com/coredns/coredns/request"
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"github.com/miekg/dns"
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)
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func TestNewRCodeRule(t *testing.T) {
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tests := []struct {
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next string
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args []string
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expectedFail bool
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}{
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{"stop", []string{"numeric.rcode.coredns.rocks", "2", "0"}, false},
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{"stop", []string{"too.few.rcode.coredns.rocks", "2"}, true},
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{"stop", []string{"exact", "too.many.rcode.coredns.rocks", "2", "1", "0"}, true},
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{"stop", []string{"exact", "match.string.rcode.coredns.rocks", "SERVFAIL", "NOERROR"}, false},
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{"continue", []string{"regex", `(regex)\.rcode\.(coredns)\.(rocks)`, "FORMERR", "NOERROR"}, false},
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{"stop", []string{"invalid.rcode.coredns.rocks", "random", "nothing"}, true},
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}
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for i, tc := range tests {
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failed := false
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rule, err := newRCodeRule(tc.next, tc.args...)
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if err != nil {
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failed = true
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}
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if !failed && !tc.expectedFail {
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continue
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}
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if failed && tc.expectedFail {
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continue
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}
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t.Fatalf("Test %d: FAIL, expected fail=%t, but received fail=%t: (%s) %s, rule=%v, err=%v", i, tc.expectedFail, failed, tc.next, tc.args, rule, err)
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}
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for i, tc := range tests {
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failed := false
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tc.args = append([]string{tc.next, "rcode"}, tc.args...)
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rule, err := newRule(tc.args...)
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if err != nil {
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failed = true
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}
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if !failed && !tc.expectedFail {
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continue
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}
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if failed && tc.expectedFail {
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continue
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}
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t.Fatalf("Test %d: FAIL, expected fail=%t, but received fail=%t: (%s) %s, rule=%v, err=%v", i, tc.expectedFail, failed, tc.next, tc.args, rule, err)
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}
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}
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func TestRCodeRewrite(t *testing.T) {
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rule, err := newRCodeRule("stop", []string{"exact", "srv1.coredns.rocks", "SERVFAIL", "FORMERR"}...)
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m := new(dns.Msg)
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m.SetQuestion("srv1.coredns.rocks.", dns.TypeA)
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m.Question[0].Qclass = dns.ClassINET
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m.Answer = []dns.RR{test.A("srv1.coredns.rocks. 5 IN A 10.0.0.1")}
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m.MsgHdr.Rcode = dns.RcodeServerFailure
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request := request.Request{Req: m}
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rcRule, _ := rule.(*exactRCodeRule)
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var rr dns.RR
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rcRule.response.RewriteResponse(request.Req, rr)
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if request.Req.MsgHdr.Rcode != dns.RcodeFormatError {
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t.Fatalf("RCode rewrite did not apply changes, request=%#v, err=%v", request.Req, err)
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}
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}
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