David Gwilliam
0f2d8bf5c2
- Add renderer.py with parse_ansi(), get_default_font_path(), render_to_pil() - Update KittyDisplay and SixelDisplay to use shared renderer - Enhance parse_ansi to handle full ANSI color codes (4-bit, 256-color) - Update tests to use shared renderer functions
129 lines
3.9 KiB
Python
129 lines
3.9 KiB
Python
"""
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Tests for engine.display.backends.sixel module.
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"""
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from unittest.mock import MagicMock, patch
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class TestSixelDisplay:
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"""Tests for SixelDisplay class."""
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def test_init_stores_dimensions(self):
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"""init stores dimensions."""
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from engine.display.backends.sixel import SixelDisplay
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display = SixelDisplay()
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display.init(80, 24)
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assert display.width == 80
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assert display.height == 24
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def test_init_custom_cell_size(self):
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"""init accepts custom cell size."""
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from engine.display.backends.sixel import SixelDisplay
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display = SixelDisplay(cell_width=12, cell_height=18)
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assert display.cell_width == 12
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assert display.cell_height == 18
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def test_show_handles_empty_buffer(self):
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"""show handles empty buffer gracefully."""
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from engine.display.backends.sixel import SixelDisplay
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display = SixelDisplay()
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display.init(80, 24)
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with patch("engine.display.backends.sixel._encode_sixel") as mock_encode:
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mock_encode.return_value = ""
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display.show([])
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def test_show_handles_pil_import_error(self):
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"""show gracefully handles missing PIL."""
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from engine.display.backends.sixel import SixelDisplay
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display = SixelDisplay()
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display.init(80, 24)
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with patch.dict("sys.modules", {"PIL": None}):
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display.show(["test line"])
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def test_clear_sends_escape_sequence(self):
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"""clear sends clear screen escape sequence."""
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from engine.display.backends.sixel import SixelDisplay
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display = SixelDisplay()
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with patch("sys.stdout") as mock_stdout:
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display.clear()
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mock_stdout.buffer.write.assert_called()
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def test_cleanup_does_nothing(self):
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"""cleanup does nothing."""
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from engine.display.backends.sixel import SixelDisplay
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display = SixelDisplay()
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display.cleanup()
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class TestSixelAnsiParsing:
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"""Tests for ANSI parsing in SixelDisplay."""
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def test_parse_empty_string(self):
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"""handles empty string."""
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from engine.display.renderer import parse_ansi
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result = parse_ansi("")
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assert len(result) > 0
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def test_parse_plain_text(self):
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"""parses plain text without ANSI codes."""
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from engine.display.renderer import parse_ansi
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result = parse_ansi("hello world")
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assert len(result) == 1
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text, fg, bg, bold = result[0]
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assert text == "hello world"
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def test_parse_with_color_codes(self):
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"""parses ANSI color codes."""
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from engine.display.renderer import parse_ansi
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result = parse_ansi("\033[31mred\033[0m")
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assert len(result) == 1
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assert result[0][0] == "red"
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assert result[0][1] == (205, 49, 49)
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def test_parse_with_bold(self):
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"""parses bold codes."""
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from engine.display.renderer import parse_ansi
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result = parse_ansi("\033[1mbold\033[0m")
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assert len(result) == 1
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assert result[0][0] == "bold"
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assert result[0][3] is True
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def test_parse_256_color(self):
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"""parses 256 color codes."""
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from engine.display.renderer import parse_ansi
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result = parse_ansi("\033[38;5;196mred\033[0m")
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assert len(result) == 1
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assert result[0][0] == "red"
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class TestSixelEncoding:
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"""Tests for Sixel encoding."""
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def test_encode_empty_image(self):
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"""handles empty image."""
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from engine.display.backends.sixel import _encode_sixel
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with patch("PIL.Image.Image") as mock_image:
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mock_img_instance = MagicMock()
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mock_img_instance.convert.return_value = mock_img_instance
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mock_img_instance.size = (0, 0)
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mock_img_instance.load.return_value = {}
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mock_image.return_value = mock_img_instance
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result = _encode_sixel(mock_img_instance)
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assert result == ""
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