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Diffstat (limited to 'middleware/erratic/erratic_test.go')
-rw-r--r--middleware/erratic/erratic_test.go45
1 files changed, 45 insertions, 0 deletions
diff --git a/middleware/erratic/erratic_test.go b/middleware/erratic/erratic_test.go
new file mode 100644
index 000000000..eaf34c39b
--- /dev/null
+++ b/middleware/erratic/erratic_test.go
@@ -0,0 +1,45 @@
+package erratic
+
+import (
+ "testing"
+
+ "github.com/miekg/coredns/middleware/pkg/dnsrecorder"
+ "github.com/miekg/coredns/middleware/test"
+
+ "github.com/miekg/dns"
+ "golang.org/x/net/context"
+)
+
+func TestErraticDrop(t *testing.T) {
+ e := &Erratic{amount: 2} // 50% drops
+
+ tests := []struct {
+ expectedCode int
+ expectedErr error
+ drop bool
+ }{
+ {expectedCode: dns.RcodeSuccess, expectedErr: nil, drop: true},
+ {expectedCode: dns.RcodeSuccess, expectedErr: nil, drop: false},
+ }
+
+ ctx := context.TODO()
+
+ for i, tc := range tests {
+ req := new(dns.Msg)
+ req.SetQuestion("example.org.", dns.TypeA)
+
+ rec := dnsrecorder.New(&test.ResponseWriter{})
+ code, err := e.ServeDNS(ctx, rec, req)
+
+ if err != tc.expectedErr {
+ t.Errorf("Test %d: Expected error %q, but got %q", i, tc.expectedErr, err)
+ }
+ if code != int(tc.expectedCode) {
+ t.Errorf("Test %d: Expected status code %d, but got %d", i, tc.expectedCode, code)
+ }
+
+ if tc.drop && rec.Msg != nil {
+ t.Errorf("Test %d: Expected dropped packet, but got %q", i, rec.Msg.Question[0].Name)
+ }
+ }
+}