mirror of https://github.com/knative/pkg.git
107 lines
2.5 KiB
Go
107 lines
2.5 KiB
Go
/*
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Copyright 2019 The Knative Authors
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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 network
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import (
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"context"
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"net/http"
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"net/http/httptest"
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"strings"
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"testing"
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"k8s.io/apimachinery/pkg/util/sets"
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)
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func TestHTTPRoundTripper(t *testing.T) {
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wants := sets.NewString()
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frt := func(key string) http.RoundTripper {
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return RoundTripperFunc(func(r *http.Request) (*http.Response, error) {
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wants.Insert(key)
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return nil, nil
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})
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}
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rt := newAutoTransport(frt("v1"), frt("v2"))
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examples := []struct {
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label string
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protoMajor int
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want string
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}{
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{
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label: "use default transport for HTTP1",
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protoMajor: 1,
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want: "v1",
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},
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{
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label: "use h2c transport for HTTP2",
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protoMajor: 2,
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want: "v2",
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},
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{
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label: "use default transport for all others",
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protoMajor: 99,
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want: "v1",
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},
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}
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for _, e := range examples {
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t.Run(e.label, func(t *testing.T) {
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wants.Delete(e.want)
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r := &http.Request{ProtoMajor: e.protoMajor}
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rt.RoundTrip(r)
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if !wants.Has(e.want) {
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t.Error("Wrong transport selected for request.")
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}
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})
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}
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}
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func TestDialWithBackoff(t *testing.T) {
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// Nobody's listening on a random port. Usually.
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c, err := DialWithBackOff(context.Background(), "tcp4", "127.0.0.1:41482")
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if err == nil {
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c.Close()
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t.Error("Unexpected success dialing")
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}
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// Make the test short.
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bo := backOffTemplate
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bo.Steps = 2
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// Timeout. Use special testing IP address.
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c, err = dialBackOffHelper(context.Background(), "tcp4", "198.18.0.254:8888", bo, sleepTO)
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if err == nil {
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c.Close()
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t.Error("Unexpected success dialing")
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}
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const expectedErrPrefix = "timed out dialing"
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if err == nil || !strings.HasPrefix(err.Error(), expectedErrPrefix) {
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t.Errorf("Error = %v, want: %s(...)", err, expectedErrPrefix)
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}
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s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {}))
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defer s.Close()
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c, err = DialWithBackOff(context.Background(), "tcp4", strings.TrimPrefix(s.URL, "http://"))
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if err != nil {
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t.Fatalf("dial error = %v, want nil", err)
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}
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c.Close()
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}
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