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import pymupdf
import pathlib
import os
def test_spikes():
"""Check suppression of text spikes caused by long miters."""
root = os.path.abspath(f"{__file__}/../..")
spikes_yes = pathlib.Path(f"{root}/docs/images/spikes-yes.png")
spikes_no = pathlib.Path(f"{root}/docs/images/spikes-no.png")
doc = pymupdf.open()
text = "NATO MEMBERS" # some text provoking spikes ("N", "M")
point = (10, 35) # insert point
# make text provoking spikes
page = doc.new_page(width=200, height=50) # small page
page.insert_text(
point,
text,
fontsize=20,
render_mode=1, # stroke text only
border_width=0.3, # causes thick border lines
miter_limit=None, # do not care about miter spikes
)
# write same text in white over the previous for better demo purpose
page.insert_text(point, text, fontsize=20, color=(1, 1, 1))
pix1 = page.get_pixmap()
assert pix1.tobytes() == spikes_yes.read_bytes()
# make text suppressing spikes
page = doc.new_page(width=200, height=50)
page.insert_text(
point,
text,
fontsize=20,
render_mode=1,
border_width=0.3,
miter_limit=1, # suppress each and every miter spike
)
page.insert_text(point, text, fontsize=20, color=(1, 1, 1))
pix2 = page.get_pixmap()
assert pix2.tobytes() == spikes_no.read_bytes()
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