69 lines
1.6 KiB
Go
69 lines
1.6 KiB
Go
package dns
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import "testing"
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func TestOPTTtl(t *testing.T) {
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e := &OPT{}
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e.Hdr.Name = "."
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e.Hdr.Rrtype = TypeOPT
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// verify the default setting of DO=0
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if e.Do() {
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t.Errorf("DO bit should be zero")
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}
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// There are 6 possible invocations of SetDo():
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//
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// 1. Starting with DO=0, using SetDo()
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// 2. Starting with DO=0, using SetDo(true)
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// 3. Starting with DO=0, using SetDo(false)
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// 4. Starting with DO=1, using SetDo()
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// 5. Starting with DO=1, using SetDo(true)
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// 6. Starting with DO=1, using SetDo(false)
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// verify that invoking SetDo() sets DO=1 (TEST #1)
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e.SetDo()
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if !e.Do() {
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t.Errorf("DO bit should be non-zero")
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}
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// verify that using SetDo(true) works when DO=1 (TEST #5)
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e.SetDo(true)
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if !e.Do() {
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t.Errorf("DO bit should still be non-zero")
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}
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// verify that we can use SetDo(false) to set DO=0 (TEST #6)
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e.SetDo(false)
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if e.Do() {
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t.Errorf("DO bit should be zero")
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}
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// verify that if we call SetDo(false) when DO=0 that it is unchanged (TEST #3)
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e.SetDo(false)
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if e.Do() {
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t.Errorf("DO bit should still be zero")
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}
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// verify that using SetDo(true) works for DO=0 (TEST #2)
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e.SetDo(true)
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if !e.Do() {
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t.Errorf("DO bit should be non-zero")
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}
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// verify that using SetDo() works for DO=1 (TEST #4)
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e.SetDo()
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if !e.Do() {
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t.Errorf("DO bit should be non-zero")
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}
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if e.Version() != 0 {
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t.Errorf("version should be non-zero")
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}
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e.SetVersion(42)
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if e.Version() != 42 {
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t.Errorf("set 42, expected %d, got %d", 42, e.Version())
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}
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e.SetExtendedRcode(42)
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if e.ExtendedRcode() != 42 {
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t.Errorf("set 42, expected %d, got %d", 42-15, e.ExtendedRcode())
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}
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}
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