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from pathlib import Path
from pytest import raises
import fpdf
from test.conftest import assert_pdf_equal
HERE = Path(__file__).resolve().parent
def test_dash_pattern(tmp_path):
pdf = fpdf.FPDF()
pdf.add_page()
pdf.set_font("helvetica", size=10)
def draw_stuff(x, y):
pdf.line(x, y, x + 50, y + 50)
pdf.polyline(((x, y), (x + 40, y + 20), (x + 10, y + 30), (x + 50, y + 50)))
pdf.polygon(((x + 5, y + 20), (x + 25, y + 45), (x + 40, y + 10)))
pdf.rect(x, y, 50, 50)
pdf.ellipse(x, y, 50, 50)
pdf.set_xy(x, y + 55)
pdf.cell(w=50, h=5, text="cell", border=1)
# solid line
draw_stuff(20, 20)
# simple dash
pdf.set_dash_pattern(3)
draw_stuff(100, 20)
# dashdot by overlap
pdf.set_dash_pattern(4, 6)
draw_stuff(20, 100)
pdf.set_dash_pattern(0.5, 9.5, 3.25)
# coverage: repeating the same pattern should not add it again
pdf.set_dash_pattern(0.5, 9.5, 3.25)
draw_stuff(20, 100)
# reset to solid
pdf.set_dash_pattern()
draw_stuff(100, 100)
assert_pdf_equal(pdf, HERE / "dash_pattern.pdf", tmp_path)
def test_dash_pattern_badinput():
pdf = fpdf.FPDF()
pdf.add_page()
with raises(ValueError):
pdf.set_dash_pattern(dash=-1)
with raises(ValueError):
pdf.set_dash_pattern(gap=-1)
with raises(ValueError):
pdf.set_dash_pattern(phase=-1)
with raises(ValueError):
pdf.set_dash_pattern(dash="yo")
with raises(ValueError):
pdf.set_dash_pattern(gap="hu")
with raises(ValueError):
pdf.set_dash_pattern(phase=None)
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