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package cli
import (
"context"
"net/http"
"testing"
"time"
"github.com/mimecast/dtail/internal/io/dlog"
"github.com/mimecast/dtail/internal/profiling"
)
func TestClientRuntimeStopShutsDownPProf(t *testing.T) {
prevClient := dlog.Client
dlog.Client = &dlog.DLog{}
t.Cleanup(func() {
dlog.Client = prevClient
})
ctx, cancel := context.WithCancel(context.Background())
runtime := &ClientRuntime{
ctx: ctx,
cancel: cancel,
profiler: profiling.NewProfiler(profiling.Config{}),
}
runtime.StartPProf("127.0.0.1:0")
if runtime.pprofServer == nil {
t.Fatal("expected pprof server to start")
}
url := "http://" + runtime.pprofServer.Address() + "/debug/pprof/"
waitForHTTPStatus(t, url, http.StatusOK)
runtime.Stop()
waitForHTTPError(t, url)
}
func waitForHTTPStatus(t *testing.T, url string, want int) {
t.Helper()
deadline := time.Now().Add(3 * time.Second)
for time.Now().Before(deadline) {
resp, err := http.Get(url)
if err == nil {
resp.Body.Close()
if resp.StatusCode == want {
return
}
}
time.Sleep(10 * time.Millisecond)
}
t.Fatalf("timed out waiting for %s to return %d", url, want)
}
func waitForHTTPError(t *testing.T, url string) {
t.Helper()
deadline := time.Now().Add(3 * time.Second)
for time.Now().Before(deadline) {
resp, err := http.Get(url)
if err != nil {
return
}
resp.Body.Close()
time.Sleep(10 * time.Millisecond)
}
t.Fatalf("timed out waiting for %s to stop serving", url)
}
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