import pytest
from click.testing import CliRunner
from cmdparse.cli import main


def test_cli_basic():
    """Test basic CLI functionality."""
    runner = CliRunner()
    result = runner.invoke(main, ['-q'], input='test input')
    assert result.exit_code == 0


def test_cli_output_format():
    """Test different output formats."""
    runner = CliRunner()
    for fmt in ['json', 'yaml', 'csv', 'raw']:
        result = runner.invoke(main, ['-o', fmt, '-q'], input='test input')
        assert result.exit_code == 0


def test_cli_extract_fields():
    """Test field extraction."""
    runner = CliRunner()
    input_text = 'key1: value1\nkey2: value2'
    result = runner.invoke(main, ['-e', 'key1', '-q'], input=input_text)
    assert result.exit_code == 0


def test_cli_empty_input():
    """Test handling of empty input."""
    runner = CliRunner()
    result = runner.invoke(main, ['-q'], input='')
    assert result.exit_code == 1
    assert 'No input' in result.output


def test_cli_quiet_flag():
    """Test quiet flag suppresses pattern detection."""
    runner = CliRunner()
    result_quiet = runner.invoke(main, ['-q'], input='test')
    result_normal = runner.invoke(main, [], input='test')
    assert result_quiet.exit_code == 0