86 lines
3.4 KiB
Python
86 lines
3.4 KiB
Python
"""
|
|
* LogarithmPlotter - 2D plotter software to make BODE plots, sequences and distribution functions.
|
|
* Copyright (C) 2021-2024 Ad5001
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
"""
|
|
|
|
import pytest
|
|
from tempfile import TemporaryDirectory
|
|
from shutil import which
|
|
from os.path import exists
|
|
from re import match
|
|
from PySide6.QtGui import QColor
|
|
|
|
from LogarithmPlotter.util import latex
|
|
|
|
latex.SHOW_GUI_MESSAGES = False
|
|
|
|
|
|
@pytest.fixture()
|
|
def latex_obj():
|
|
directory = TemporaryDirectory()
|
|
obj = latex.Latex(directory.name)
|
|
if not obj.checkLatexInstallation():
|
|
raise Exception("Cannot run LaTeX tests without a proper LaTeX installation. Make sure to install a LaTeX distribution, DVIPNG, and the calligra package, and run the tests again.")
|
|
yield obj
|
|
directory.cleanup()
|
|
|
|
|
|
class TestLatex:
|
|
def test_check_install(self, latex_obj: latex.Latex) -> None:
|
|
assert latex_obj.latexSupported == True
|
|
assert latex_obj.checkLatexInstallation() == True
|
|
bkp = [latex.DVIPNG_PATH, latex.LATEX_PATH]
|
|
# Check what happens when one is missing.
|
|
latex.DVIPNG_PATH = None
|
|
assert latex_obj.latexSupported == False
|
|
assert latex_obj.checkLatexInstallation() == False
|
|
latex.DVIPNG_PATH = bkp[0]
|
|
latex.LATEX_PATH = None
|
|
assert latex_obj.latexSupported == False
|
|
assert latex_obj.checkLatexInstallation() == False
|
|
# Reset
|
|
[latex.DVIPNG_PATH, latex.LATEX_PATH] = bkp
|
|
|
|
def test_render(self, latex_obj: latex.Latex) -> None:
|
|
result = latex_obj.render(r"\frac{d\sqrt{\mathrm{f}(x \times 2.3)}}{dx}", 14, QColor(0, 0, 0, 255))
|
|
# Ensure result format
|
|
assert type(result) == str
|
|
[path, width, height] = result.split(",")
|
|
assert exists(path)
|
|
assert match(r"\d+", width)
|
|
assert match(r"\d+", height)
|
|
# Ensure it returns errors on invalid latex.
|
|
with pytest.raises(latex.RenderError):
|
|
latex_obj.render(r"\nonexistant", 14, QColor(0, 0, 0, 255))
|
|
# Replace latex bin with one that returns errors
|
|
bkp = latex.LATEX_PATH
|
|
latex.LATEX_PATH = which("false")
|
|
with pytest.raises(latex.RenderError):
|
|
latex_obj.render(r"\mathrm{f}(x)", 14, QColor(0, 0, 0, 255))
|
|
latex.LATEX_PATH = bkp
|
|
|
|
def test_prerendered(self, latex_obj: latex.Latex) -> None:
|
|
args = [r"\frac{d\sqrt{\mathrm{f}(x \times 2.3)}}{dx}", 14, QColor(0, 0, 0, 255)]
|
|
latex_obj.render(*args)
|
|
prerendered = latex_obj.findPrerendered(*args)
|
|
assert type(prerendered) == str
|
|
[path, width, height] = prerendered.split(",")
|
|
assert exists(path)
|
|
assert match(r"\d+", width)
|
|
assert match(r"\d+", height)
|
|
prerendered2 = latex_obj.findPrerendered(args[0], args[1]+2, args[2])
|
|
assert prerendered2 == ""
|
|
|