import 'package:flutter_test/flutter_test.dart';
import 'package:accessible_terminal/ui/widgets/ansi_text_parser.dart';
import 'package:flutter/material.dart';

void main() {
  group('AnsiTextParser', () {
    test('strip removes CSI ANSI color codes', () {
      const input = '\x1B[31mRed Text\x1B[0m';
      final result = AnsiTextParser.strip(input);
      expect(result, equals('Red Text'));
    });

    test('strip removes OSC sequences (Window Title)', () {
      const input = '\x1B]0;My Title\x07Content';
      final result = AnsiTextParser.strip(input);
      expect(result, equals('Content'));
    });
    
    test('strip removes OSC sequences with ST terminator', () {
      const input = '\x1B]0;My Title\x1B\\Content';
      final result = AnsiTextParser.strip(input);
      expect(result, equals('Content'));
    });

    test('strip removes mixed sequences', () {
      const input = 'Normal \x1B[1mBold\x1B[0m \x1B]0;Hidden\x07Text';
      final result = AnsiTextParser.strip(input);
      expect(result, equals('Normal Bold Text'));
    });

    test('parse handles OSC sequences by ignoring them (discarding)', () {
      final parser = AnsiTextParser();
      const input = '\x1B]0;Title\x07Visible';
      final span = parser.parse(input);
      expect(span.toPlainText(), equals('Visible'));
    });
    
    test('strip removes control characters', () {
       const input = 'Clean\x00\x08Me'; // Null and Backspace
       final result = AnsiTextParser.strip(input);
       expect(result, equals('CleanMe'));
    });
  });
}