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Merge pull request #651 from TheTincho/fix_integration_test_timing

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Fix path and timing issues with integration tests.
This commit is contained in:
Matthias Rampke 2017-08-19 15:12:42 +02:00 committed by GitHub
parent 8839640cd1 2cd49eb020
commit 8661bbbb42
1 changed files with 15 additions and 18 deletions
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33
node_exporter_test.go
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@ -13,8 +13,10 @@ import (
"github.com/prometheus/procfs"
)
var (
binary = filepath.Join(os.Getenv("GOPATH"), "bin/node_exporter")
)
const (
binary = "./node_exporter"
address = "localhost:19100"
)
@ -54,7 +56,7 @@ func TestFileDescriptorLeak(t *testing.T) {
return nil
}
if err := runCommandAndTests(exporter, test); err != nil {
if err := runCommandAndTests(exporter, address, test); err != nil {
t.Error(err)
}
}
@ -83,7 +85,7 @@ func TestHandlingOfDuplicatedMetrics(t *testing.T) {
return queryExporter(address)
}
if err := runCommandAndTests(exporter, test); err != nil {
if err := runCommandAndTests(exporter, address, test); err != nil {
t.Error(err)
}
}
@ -106,27 +108,22 @@ func queryExporter(address string) error {
return nil
}
func runCommandAndTests(cmd *exec.Cmd, fn func(pid int) error) error {
func runCommandAndTests(cmd *exec.Cmd, address string, fn func(pid int) error) error {
if err := cmd.Start(); err != nil {
return fmt.Errorf("failed to start command: %s", err)
}
errc := make(chan error)
go func() {
if err := cmd.Wait(); err != nil {
errc <- fmt.Errorf("execution of command failed: %s", err)
} else {
errc <- nil
time.Sleep(50 * time.Millisecond)
for i := 0; i < 10; i++ {
if err := queryExporter(address); err == nil {
break
}
time.Sleep(500 * time.Millisecond)
if cmd.Process== nil || i == 9 {
return fmt.Errorf("can't start command")
}
}()
// Allow the process to start before running any tests.
select {
case err := <-errc:
return err
case <-time.After(100 * time.Millisecond):
}
errc := make(chan error)
go func(pid int) {
errc <- fn(pid)
}(cmd.Process.Pid)