func TestDvsni(t *testing.T) {
va := NewValidationAuthorityImpl(true)
va.DNSResolver = core.NewDNSResolver(time.Second*5, []string{"8.8.8.8:53"})
a := []byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 0}
ba := core.B64enc(a)
chall := core.Challenge{R: ba, S: ba}
invalidChall, err := va.validateDvsni(ident, chall)
test.AssertEquals(t, invalidChall.Status, core.StatusInvalid)
test.AssertError(t, err, "Server's not up yet; expected refusal. Where did we connect?")
test.AssertEquals(t, invalidChall.Error.Type, core.ConnectionProblem)
waitChan := make(chan bool, 1)
stopChan := make(chan bool, 1)
go dvsniSrv(t, a, a, stopChan, waitChan)
defer func() { stopChan <- true }()
<-waitChan
finChall, err := va.validateDvsni(ident, chall)
test.AssertEquals(t, finChall.Status, core.StatusValid)
test.AssertNotError(t, err, "")
invalidChall, err = va.validateDvsni(core.AcmeIdentifier{Type: core.IdentifierType("ip"), Value: "127.0.0.1"}, chall)
test.AssertEquals(t, invalidChall.Status, core.StatusInvalid)
test.AssertError(t, err, "IdentifierType IP shouldn't have worked.")
test.AssertEquals(t, invalidChall.Error.Type, core.MalformedProblem)
va.TestMode = false
invalidChall, err = va.validateDvsni(core.AcmeIdentifier{Type: core.IdentifierDNS, Value: "always.invalid"}, chall)
test.AssertEquals(t, invalidChall.Status, core.StatusInvalid)
test.AssertError(t, err, "Domain name is invalid.")
test.AssertEquals(t, invalidChall.Error.Type, core.UnknownHostProblem)
va.TestMode = true
chall.R = ba[5:]
invalidChall, err = va.validateDvsni(ident, chall)
test.AssertEquals(t, invalidChall.Status, core.StatusInvalid)
test.AssertError(t, err, "R Should be illegal Base64")
test.AssertEquals(t, invalidChall.Error.Type, core.MalformedProblem)
chall.R = ba
chall.S = "!@#"
invalidChall, err = va.validateDvsni(ident, chall)
test.AssertEquals(t, invalidChall.Status, core.StatusInvalid)
test.AssertError(t, err, "S Should be illegal Base64")
test.AssertEquals(t, invalidChall.Error.Type, core.MalformedProblem)
chall.S = ba
chall.Nonce = "wait-long"
started := time.Now()
invalidChall, err = va.validateDvsni(ident, chall)
took := time.Since(started)
// Check that the HTTP connection times out after 5 seconds and doesn't block for 10 seconds
test.Assert(t, (took > (time.Second * 5)), "HTTP timed out before 5 seconds")
test.Assert(t, (took < (time.Second * 10)), "HTTP connection didn't timeout after 5 seconds")
test.AssertEquals(t, invalidChall.Status, core.StatusInvalid)
test.AssertError(t, err, "Connection should've timed out")
test.AssertEquals(t, invalidChall.Error.Type, core.ConnectionProblem)
}