package axinput

import "testing"

func TestShouldRestoreClipboardRequiresFallbackTextStillPresent(t *testing.T) {
	if !shouldRestoreClipboard(clipboardSnapshot{text: "recognized text", hasText: true}, "recognized text") {
		t.Fatal("expected matching fallback clipboard text to be restorable")
	}
	if shouldRestoreClipboard(clipboardSnapshot{text: "user changed clipboard", hasText: true}, "recognized text") {
		t.Fatal("changed clipboard must not be overwritten")
	}
	if shouldRestoreClipboard(clipboardSnapshot{}, "recognized text") {
		t.Fatal("empty clipboard must not be restored over")
	}
}

func TestClipboardStateTokenIsSingleUse(t *testing.T) {
	var state clipboardState
	token := state.remember("recognized text", clipboardSnapshot{text: "original", hasText: true})

	entry, ok := state.take(token)
	if !ok {
		t.Fatal("expected first token lookup to succeed")
	}
	if entry.fallbackText != "recognized text" || !entry.restore.hasText || entry.restore.text != "original" {
		t.Fatalf("entry = %+v", entry)
	}
	if _, ok := state.take(token); ok {
		t.Fatal("token must be single use")
	}
}