116 lines
3.6 KiB
Go
116 lines
3.6 KiB
Go
package rewrite
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import (
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"context"
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"strings"
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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 TestRewriteIllegalName(t *testing.T) {
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r, _ := newNameRule("stop", "example.org.", "example..org.")
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rw := Rewrite{
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Next: plugin.HandlerFunc(msgPrinter),
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Rules: []Rule{r},
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noRevert: true,
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}
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ctx := context.TODO()
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m := new(dns.Msg)
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m.SetQuestion("example.org.", dns.TypeA)
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rec := dnstest.NewRecorder(&test.ResponseWriter{})
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_, err := rw.ServeDNS(ctx, rec, m)
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if !strings.Contains(err.Error(), "invalid name") {
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t.Errorf("Expected invalid name, got %s", err.Error())
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}
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}
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func TestRewriteNamePrefix(t *testing.T) {
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r, err := newNameRule("stop", "prefix", "test", "not-a-test")
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if err != nil {
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t.Fatalf("Expected no error, got %s", err)
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}
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rw := Rewrite{
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Next: plugin.HandlerFunc(msgPrinter),
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Rules: []Rule{r},
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noRevert: true,
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}
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ctx := context.TODO()
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m := new(dns.Msg)
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m.SetQuestion("test.example.org.", dns.TypeA)
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rec := dnstest.NewRecorder(&test.ResponseWriter{})
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_, err = rw.ServeDNS(ctx, rec, m)
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if err != nil {
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t.Fatalf("Expected no error, got %s", err)
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}
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expected := "not-a-test.example.org."
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actual := rec.Msg.Question[0].Name
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if actual != expected {
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t.Fatalf("Expected rewrite to %v, got %v", expected, actual)
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}
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}
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func TestNewNameRule(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{"exact", "srv3.coredns.rocks", "srv4.coredns.rocks"}, false},
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{"stop", []string{"srv1.coredns.rocks", "srv2.coredns.rocks"}, false},
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{"stop", []string{"suffix", "coredns.rocks", "coredns.rocks."}, false},
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{"stop", []string{"suffix", "coredns.rocks.", "coredns.rocks"}, false},
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{"stop", []string{"suffix", "coredns.rocks.", "coredns.rocks."}, false},
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{"stop", []string{"regex", "srv1.coredns.rocks", "10"}, false},
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{"stop", []string{"regex", "(.*).coredns.rocks", "10"}, false},
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{"stop", []string{"regex", "(.*).coredns.rocks", "{1}.coredns.rocks"}, false},
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{"stop", []string{"regex", "(.*).coredns.rocks", "{1}.{2}.coredns.rocks"}, true},
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{"stop", []string{"regex", "staging.mydomain.com", "aws-loadbalancer-id.us-east-1.elb.amazonaws.com"}, false},
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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 := newNameRule(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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t.Logf("Test %d: PASS, passed as expected: (%s) %s", i, tc.next, tc.args)
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continue
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}
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if failed && tc.expectedFail {
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t.Logf("Test %d: PASS, failed as expected: (%s) %s: %s", i, tc.next, tc.args, err)
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continue
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}
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if failed && !tc.expectedFail {
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t.Fatalf("Test %d: FAIL, expected fail=%t, but received fail=%t: (%s) %s, rule=%v, error=%s", i, tc.expectedFail, failed, tc.next, tc.args, rule, err)
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}
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t.Fatalf("Test %d: FAIL, expected fail=%t, but received fail=%t: (%s) %s, rule=%v", i, tc.expectedFail, failed, tc.next, tc.args, rule)
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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, "name"}, 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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t.Logf("Test %d: PASS, passed as expected: (%s) %s", i, tc.next, tc.args)
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continue
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}
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if failed && tc.expectedFail {
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t.Logf("Test %d: PASS, failed as expected: (%s) %s: %s", i, tc.next, tc.args, err)
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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", i, tc.expectedFail, failed, tc.next, tc.args, rule)
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}
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}
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