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Timmy-time-dashboard/tests/creative/test_font_resolution.py

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Python

"""Test font resolution logic in the creative module."""
import pytest
from pathlib import Path
from unittest.mock import patch, MagicMock
def test_resolve_font_prefers_dejavu():
"""Test that _resolve_font prefers DejaVu fonts when available."""
from creative.assembler import _resolve_font
# This test will pass on systems with DejaVu fonts installed
# (most Linux distributions)
font = _resolve_font()
assert isinstance(font, str)
assert font.endswith(".ttf") or font.endswith(".ttc")
assert Path(font).exists()
def test_resolve_font_returns_valid_path():
"""Test that _resolve_font returns a valid, existing path."""
from creative.assembler import _resolve_font
font = _resolve_font()
assert isinstance(font, str)
# Should be a path, not just a font name
assert "/" in font or "\\" in font
assert Path(font).exists()
def test_resolve_font_no_invalid_fallback():
"""Test that _resolve_font never returns invalid font names like 'Helvetica'."""
from creative.assembler import _resolve_font
font = _resolve_font()
# Should not return bare font names that Pillow can't find
assert font not in ["Helvetica", "Arial", "Times New Roman"]
# Should be a valid path
assert Path(font).exists()
@patch("creative.assembler.Path.exists")
@patch("subprocess.run")
def test_resolve_font_fallback_search(mock_run, mock_exists):
"""Test that _resolve_font falls back to searching for any TTF."""
# Mock: no preferred fonts exist
mock_exists.return_value = False
# Mock: subprocess finds a font
mock_result = MagicMock()
mock_result.stdout = "/usr/share/fonts/truetype/liberation/LiberationSans-Regular.ttf\n"
mock_run.return_value = mock_result
from creative.assembler import _resolve_font
font = _resolve_font()
assert "LiberationSans-Regular.ttf" in font
@patch("creative.assembler.Path.exists")
@patch("subprocess.run")
def test_resolve_font_raises_on_no_fonts(mock_run, mock_exists):
"""Test that _resolve_font raises RuntimeError when no fonts are found."""
# Mock: no fonts found anywhere
mock_exists.return_value = False
mock_result = MagicMock()
mock_result.stdout = ""
mock_run.return_value = mock_result
from creative.assembler import _resolve_font
with pytest.raises(RuntimeError, match="No suitable TrueType font found"):
_resolve_font()