package cli

import (
	"bytes"
	"strings"
	"testing"
	"time"
)

// The short version, so CI sees the gateway's overhead on every change: every
// mode answers every request, and what the gateway adds is measured, not
// guessed. No bound is asserted on it, as CI's machines vary; the table is
// in the test's log.
func TestTheGatewaysOverheadIsMeasured(t *testing.T) {
	steps, err := runOverhead(t.Context(), []int{50}, time.Second)
	if err != nil {
		t.Fatal(err)
	}
	if len(steps) != len(overheadModes) {
		t.Fatalf("%d steps for %d modes", len(steps), len(overheadModes))
	}
	for _, s := range steps {
		if s.Sent == 0 || s.Failed > 0 || s.P50 <= 0 || s.P99 < s.P50 {
			t.Errorf("%s: sent %d failed %d p50 %s p99 %s", s.Mode, s.Sent, s.Failed, s.P50, s.P99)
		}
	}
	var b bytes.Buffer
	printOverhead(&b, steps)
	if !strings.Contains(b.String(), "gateway+auth+guard") {
		t.Errorf("table:\n%s", b.String())
	}
	t.Logf("\n%s", b.String())
}