mirror of
https://github.com/gravitational/teleport
synced 2024-10-20 01:03:40 +00:00
139 lines
3.3 KiB
Go
139 lines
3.3 KiB
Go
/*
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Copyright 2018 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 srv
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import (
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"context"
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"sync/atomic"
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"testing"
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"time"
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"github.com/gravitational/trace"
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"github.com/stretchr/testify/require"
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)
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func TestServerClose(t *testing.T) {
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t.Parallel()
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doneCh := make(chan bool, 1)
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closeContext, closeCancel := context.WithCancel(context.Background())
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// Create a request sender that always replies to keep-alive requests.
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requestSender := &testRequestSender{
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reply: true,
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}
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go func() {
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StartKeepAliveLoop(KeepAliveParams{
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Conns: []RequestSender{
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requestSender,
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},
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Interval: 10 * time.Millisecond,
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MaxCount: 2,
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CloseContext: closeContext,
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CloseCancel: closeCancel,
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})
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doneCh <- true
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}()
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// Wait for a keep-alive to be sent.
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err := waitForRequests(requestSender, 1)
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require.NoError(t, err)
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// Close the context (server), should cause the loop to stop as well.
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closeCancel()
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// Wait 1 second for the keep-alive loop to stop, or return an error.
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select {
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case <-time.After(1 * time.Second):
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t.Fatalf("Timeout waiting for keep-alive loop to stop.")
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case <-doneCh:
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}
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}
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func TestLoopClose(t *testing.T) {
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t.Parallel()
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doneCh := make(chan bool, 1)
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closeContext, closeCancel := context.WithCancel(context.Background())
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// Create a request sender that never replies to keep-alive requests.
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requestSender := &testRequestSender{
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reply: false,
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}
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go func() {
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StartKeepAliveLoop(KeepAliveParams{
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Conns: []RequestSender{
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requestSender,
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},
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Interval: 10 * time.Millisecond,
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MaxCount: 2,
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CloseContext: closeContext,
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CloseCancel: closeCancel,
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})
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doneCh <- true
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}()
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// Wait for a keep-alive to be sent.
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err := waitForRequests(requestSender, 1)
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require.NoError(t, err)
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// Wait 1 second for the keep-alive loop to stop, or return an error.
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select {
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case <-time.After(1 * time.Second):
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t.Fatalf("Timeout waiting for keep-alive loop to stop.")
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case <-doneCh:
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}
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}
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func waitForRequests(requestSender *testRequestSender, count int) error {
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tickerCh := time.NewTicker(50 * time.Millisecond)
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defer tickerCh.Stop()
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timeoutCh := time.NewTimer(1 * time.Second)
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defer timeoutCh.Stop()
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for {
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select {
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case <-tickerCh.C:
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if requestSender.Count() > count {
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return nil
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}
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case <-timeoutCh.C:
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return trace.BadParameter("timeout waiting for requests")
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}
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}
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}
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type testRequestSender struct {
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count int64 // intentionally placed first to ensure 64-bit alignment
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reply bool
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}
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func (n *testRequestSender) SendRequest(name string, wantReply bool, payload []byte) (bool, []byte, error) {
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atomic.AddInt64(&n.count, 1)
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if n.reply == false {
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return false, nil, trace.BadParameter("no reply")
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}
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return false, nil, nil
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}
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func (n *testRequestSender) Count() int {
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return int(atomic.LoadInt64(&n.count))
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}
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