mirror of
https://github.com/gravitational/teleport.git
synced 2026-09-24 16:17:11 +08:00
100 lines
2.6 KiB
Go
100 lines
2.6 KiB
Go
/*
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Copyright 2015 Gravitational, Inc.
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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 utils
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import (
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"fmt"
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"io/ioutil"
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"net"
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"net/http"
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"net/http/httptest"
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"time"
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"gopkg.in/check.v1"
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)
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// TimeoutSuite helps us to test ObeyTimeout mechanism. We use HTTP server/client
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// machinery to test timeouts
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type TimeoutSuite struct {
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lastRequest *http.Request
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server *httptest.Server
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}
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var _ = check.Suite(&TimeoutSuite{})
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func (s *TimeoutSuite) SetUpSuite(c *check.C) {
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//
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// set up an HTTP server which listens and responds to queries
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s.server = httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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switch r.URL.Path {
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// GET /slow?delay=10ms sleeps for a given delay, then returns word "slow"
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case "/slow":
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delay, err := time.ParseDuration(r.URL.Query().Get("delay"))
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c.Assert(err, check.IsNil)
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time.Sleep(delay)
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fmt.Fprintf(w, "slow")
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// GET /ping returns "pong"
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case "/ping":
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fmt.Fprintf(w, "pong")
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}
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}))
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}
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func (s *TimeoutSuite) TearDownSuite(c *check.C) {
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s.server.Close()
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}
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func (s *TimeoutSuite) TestSlowOperation(c *check.C) {
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client := newClient(time.Millisecond * 5)
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_, err := client.Get(s.server.URL + "/slow?delay=20ms")
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// must fail with I/O timeout
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c.Assert(err, check.NotNil)
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c.Assert(err.Error(), check.Matches, "^.*i/o timeout$")
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}
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func (s *TimeoutSuite) TestNormalOperation(c *check.C) {
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client := newClient(time.Millisecond * 100)
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resp, err := client.Get(s.server.URL + "/ping")
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c.Assert(err, check.IsNil)
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c.Assert(bodyText(resp), check.Equals, "pong")
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}
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// newClient helper returns HTTP client configured to use a connection
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// which drops itself after N idle time
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func newClient(timeout time.Duration) *http.Client {
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var t http.Transport
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t.Dial = func(network string, addr string) (net.Conn, error) {
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conn, err := net.Dial(network, addr)
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if err != nil {
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return nil, err
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}
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return ObeyIdleTimeout(conn, timeout, "test"), nil
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}
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return &http.Client{Transport: &t}
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}
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// bodyText helper returns a body string from an http response
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func bodyText(resp *http.Response) string {
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bytes, err := ioutil.ReadAll(resp.Body)
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if err != nil {
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return ""
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}
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return string(bytes)
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}
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