import pytest
from piker.ui._style import DpiAwareFont

class MockScreen:
    def __init__(self, pdpi, ldpi, name="MockScreen"):
        self._pdpi = pdpi
        self._ldpi = ldpi
        self._name = name

    def physicalDotsPerInch(self):
        return self._pdpi

    def logicalDotsPerInch(self):
        return self._ldpi

    def name(self):
        return self._name

@pytest.mark.parametrize(
    "pdpi, ldpi",
    [
        (96, 96),       # normal DPI
        (169, 96),      # HiDPI
        (120, 96),      # mid-DPI
    ]
)
def test_font_px_size(pdpi, ldpi):
    font = DpiAwareFont()
    font.configure_to_dpi(screen=MockScreen(pdpi, ldpi))

    px = font.px_size
    print(f"{pdpi}x{ldpi} DPI -> Computed pixel size: {px}")

    assert 12 <= px <= 24