package main

import "testing"

func TestAdaptiveSizerRecoversFromMinimum(t *testing.T) {
	opts := chunkClientOptions{
		startSize:      64,
		minSize:        32,
		maxSize:        1024,
		adaptive:       true,
		adaptSuccesses: 2,
	}
	s := newAdaptiveSizer("test", opts)
	_, next := s.Failure(64)
	if next != 32 {
		t.Fatalf("failure should reduce 64 -> 32, got %d", next)
	}

	// When good=32 and bad=64 are adjacent at the controller's probing
	// granularity, it deliberately waits 8x longer before testing upward.
	for i := 0; i < 16; i++ {
		s.Success(32)
	}
	if got := s.Current(); got <= 32 {
		t.Fatalf("adaptive controller remained stuck at minimum: %d", got)
	}
}

func TestWireTokenAllowsEmptyToken(t *testing.T) {
	if got := wireToken(""); got != "-" {
		t.Fatalf("empty token wire representation = %q, want '-'", got)
	}
	if got := wireToken("secret"); got != "secret" {
		t.Fatalf("non-empty token changed: %q", got)
	}
}