Pillow/Tests/test_imagefont_bitmap.py

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import pytest
from PIL import Image, ImageDraw, ImageFont
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from .helper import assert_image_similar
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image_font_installed = True
try:
ImageFont.core.getfont
except ImportError:
image_font_installed = False
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@pytest.mark.skipif(not image_font_installed, reason="Image font not installed")
def test_similar():
text = "EmbeddedBitmap"
font_outline = ImageFont.truetype(font="Tests/fonts/DejaVuSans.ttf", size=24)
font_bitmap = ImageFont.truetype(font="Tests/fonts/DejaVuSans-bitmap.ttf", size=24)
size_outline = font_outline.getsize(text)
size_bitmap = font_bitmap.getsize(text)
size_final = (
max(size_outline[0], size_bitmap[0]),
max(size_outline[1], size_bitmap[1]),
)
im_bitmap = Image.new("RGB", size_final, (255, 255, 255))
im_outline = im_bitmap.copy()
draw_bitmap = ImageDraw.Draw(im_bitmap)
draw_outline = ImageDraw.Draw(im_outline)
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# Metrics are different on the bitmap and TTF fonts,
# more so on some platforms and versions of FreeType than others.
# Mac has a 1px difference, Linux doesn't.
draw_bitmap.text(
(0, size_final[1] - size_bitmap[1]), text, fill=(0, 0, 0), font=font_bitmap
)
draw_outline.text(
(0, size_final[1] - size_outline[1]), text, fill=(0, 0, 0), font=font_outline,
)
assert_image_similar(im_bitmap, im_outline, 20)