| // Copyright 2016 The etcd Authors |
| // |
| // 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 |
| // |
| // http://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 tcpproxy |
| |
| import ( |
| "fmt" |
| "io/ioutil" |
| "net" |
| "net/http" |
| "net/http/httptest" |
| "net/url" |
| "testing" |
| ) |
| |
| func TestUserspaceProxy(t *testing.T) { |
| l, err := net.Listen("tcp", "127.0.0.1:0") |
| if err != nil { |
| t.Fatal(err) |
| } |
| defer l.Close() |
| |
| want := "hello proxy" |
| ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { |
| fmt.Fprint(w, want) |
| })) |
| defer ts.Close() |
| |
| u, err := url.Parse(ts.URL) |
| if err != nil { |
| t.Fatal(err) |
| } |
| |
| var port uint16 |
| fmt.Sscanf(u.Port(), "%d", &port) |
| p := TCPProxy{ |
| Listener: l, |
| Endpoints: []*net.SRV{{Target: u.Hostname(), Port: port}}, |
| } |
| go p.Run() |
| defer p.Stop() |
| |
| u.Host = l.Addr().String() |
| |
| res, err := http.Get(u.String()) |
| if err != nil { |
| t.Fatal(err) |
| } |
| got, gerr := ioutil.ReadAll(res.Body) |
| res.Body.Close() |
| if gerr != nil { |
| t.Fatal(gerr) |
| } |
| |
| if string(got) != want { |
| t.Errorf("got = %s, want %s", got, want) |
| } |
| } |