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/*
*
* Copyright 2023 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package fallback
import (
"context"
"fmt"
"net"
"reflect"
"testing"
)
func TestDefaultFallbackClientHandshakeFunc(t *testing.T) {
testDialContextFunc := func(context.Context, string, string) (net.Conn, error) {
return nil, fmt.Errorf("testDialError")
}
for _, tc := range []struct {
desc string
inputFallbackAddr string
funcInitialized bool
expectedAddr string
expectNilErr bool
}{
{
"working case, fallback address has port suffix",
"example.com:443",
true,
"example.com:443",
true,
},
{
"working case, fallback address has no port suffix",
"example.com",
true,
"example.com:443",
true,
},
{
"working case, IP address, with port",
"192.168.1.1:443",
true,
"192.168.1.1:443",
true,
},
{
"working case, IP address, no port",
"192.168.1.1",
true,
"192.168.1.1:443",
true,
},
{
"working case, IPv6 address, with port",
"[2001:db8::1]:443",
true,
"[2001:db8::1]:443",
true,
},
{
"working case, IPv6 address, no port",
"2001:db8::1",
true,
"[2001:db8::1]:443",
true,
},
{
"test empty fallback address",
"",
false,
"",
false,
},
} {
fbFunc, err := defaultFallbackClientHandshakeFuncInternal(tc.inputFallbackAddr, testDialContextFunc)
if got, want := fbFunc != nil, tc.funcInitialized; got != want {
t.Errorf("%v: fallback handshake func is initialized=[%v], want [%v]", tc.desc, got, want)
}
if got, want := err == nil, tc.expectNilErr; got != want {
t.Errorf("%v: got error [%v], want nil error [%v]", tc.desc, err, want)
}
if err == nil {
_, _, err := fbFunc(context.TODO(), "", nil, fmt.Errorf("testS2AError"))
if err == nil {
t.Errorf("%v: expecting an error from the test dial function, got nil instead", tc.desc)
}
expectedErr := fmt.Sprintf("dialing to fallback server %s failed: testDialError; S2A client handshake with error: testS2AError", tc.expectedAddr)
if got, want := err.Error(), expectedErr; got != want {
t.Errorf("%v: fallback handshake got error [%v], want error [%v]", tc.desc, got, want)
}
}
}
}
func TestDefaultFallbackDialerAndAddress(t *testing.T) {
for _, tc := range []struct {
desc string
inputFallbackAddr string
dialerInitialized bool
expectedAddr string
expectNilErr bool
}{
{
"working case, fallback address has port suffix",
"example.com:443",
true,
"example.com:443",
true,
},
{
"working case, fallback address has no port suffix",
"example.com",
true,
"example.com:443",
true,
},
{
"working case, IP address, with port",
"192.168.1.1:443",
true,
"192.168.1.1:443",
true,
},
{
"working case, IP address, no port",
"192.168.1.1",
true,
"192.168.1.1:443",
true,
},
{
"working case, IPv6 address, with port",
"[2001:db8::1]:443",
true,
"[2001:db8::1]:443",
true,
},
{
"working case, IPv6 address, no port",
"2001:db8::1",
true,
"[2001:db8::1]:443",
true,
},
{
"test empty fallback address",
"",
false,
"",
false,
},
} {
fbDialer, fbAddr, err := DefaultFallbackDialerAndAddress(tc.inputFallbackAddr)
if got, want := fbDialer != nil, tc.dialerInitialized; got != want {
t.Errorf("%v: fallback dialer is initialized=[%v], want [%v]", tc.desc, got, want)
}
if got, want := fbAddr, tc.expectedAddr; got != want {
t.Errorf("%v: returned fallback address=[%v], want [%v]", tc.desc, got, want)
}
if got, want := err == nil, tc.expectNilErr; got != want {
t.Errorf("%v: got error [%v], want nil error [%v]", tc.desc, err, want)
}
if err == nil {
if !reflect.DeepEqual(fbDialer.Config, &FallbackTLSConfigHTTP) {
t.Errorf("%v: unexpected tls config from fallback dialer: [%v], expected: [%v]", tc.desc, fbDialer.Config, &FallbackTLSConfigHTTP)
}
}
}
}
|
