3b65927050
Automatic merge from submit-queue Refactor streaming code to support interop testing Refactor exec/attach/port forward client and server code to better support interop testing of different client and server subprotocol versions. Fixes #16119
128 lines
3.3 KiB
Go
128 lines
3.3 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package httpstream
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import (
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"net/http"
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"reflect"
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"testing"
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"k8s.io/kubernetes/pkg/api"
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)
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type responseWriter struct {
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header http.Header
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statusCode *int
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}
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func newResponseWriter() *responseWriter {
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return &responseWriter{
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header: make(http.Header),
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}
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}
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func (r *responseWriter) Header() http.Header {
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return r.header
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}
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func (r *responseWriter) WriteHeader(code int) {
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r.statusCode = &code
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}
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func (r *responseWriter) Write([]byte) (int, error) {
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return 0, nil
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}
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func TestHandshake(t *testing.T) {
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tests := map[string]struct {
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clientProtocols []string
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serverProtocols []string
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expectedProtocol string
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expectError bool
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}{
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"no client protocols": {
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clientProtocols: []string{},
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serverProtocols: []string{"a", "b"},
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expectedProtocol: "",
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},
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"no common protocol": {
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clientProtocols: []string{"c"},
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serverProtocols: []string{"a", "b"},
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expectedProtocol: "",
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expectError: true,
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},
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"common protocol": {
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clientProtocols: []string{"b"},
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serverProtocols: []string{"a", "b"},
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expectedProtocol: "b",
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},
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}
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for name, test := range tests {
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req, err := http.NewRequest("GET", "http://www.example.com/", nil)
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if err != nil {
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t.Fatalf("%s: error creating request: %v", name, err)
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}
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for _, p := range test.clientProtocols {
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req.Header.Add(HeaderProtocolVersion, p)
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}
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w := newResponseWriter()
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negotiated, err := Handshake(req, w, test.serverProtocols)
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// verify negotiated protocol
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if e, a := test.expectedProtocol, negotiated; e != a {
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t.Errorf("%s: protocol: expected %q, got %q", name, e, a)
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}
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if test.expectError {
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if err == nil {
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t.Errorf("%s: expected error but did not get one", name)
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}
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if w.statusCode == nil {
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t.Errorf("%s: expected w.statusCode to be set", name)
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} else if e, a := http.StatusForbidden, *w.statusCode; e != a {
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t.Errorf("%s: w.statusCode: expected %d, got %d", name, e, a)
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}
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if e, a := test.serverProtocols, w.Header()[HeaderAcceptedProtocolVersions]; !reflect.DeepEqual(e, a) {
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t.Errorf("%s: accepted server protocols: expected %v, got %v", name, e, a)
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}
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continue
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}
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if !test.expectError && err != nil {
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t.Errorf("%s: unexpected error: %v", name, err)
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continue
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}
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if w.statusCode != nil {
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t.Errorf("%s: unexpected non-nil w.statusCode: %d", name, w.statusCode)
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}
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if len(test.expectedProtocol) == 0 {
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if len(w.Header()[HeaderProtocolVersion]) > 0 {
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t.Errorf("%s: unexpected protocol version response header: %s", w.Header()[HeaderProtocolVersion])
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}
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continue
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}
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// verify response headers
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if e, a := []string{test.expectedProtocol}, w.Header()[HeaderProtocolVersion]; !api.Semantic.DeepEqual(e, a) {
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t.Errorf("%s: protocol response header: expected %v, got %v", name, e, a)
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}
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}
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}
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