Many elements of Matplotlib can be tested using standard tests. For example, here is a test from matplotlib/tests/test_basic.py: Pytest determines which functions are tests by searching for files whose names begin with "test_" and then within those files for functions beginning with "test" or classes beginning with "Test".

Currently Matplotlib supports PyQt/PySide, PyGObject, Tkinter, and wxPython. When embedding Matplotlib in a GUI, you must use the Matplotlib API directly rather than the pylab/pyplot procedural interface, so take a look at the examples/api directory for …

For example, say you want to test a simple function like this: import numpy as np import matplotlib.pyplot as plt def plot_square(x, y): y_squared = np.square(y) return plt.plot(x, y_squared)

The following are 24 code examples of matplotlib.testing(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example.

Decorator for test cases that generate and compare two figures. The decorated function must take two keyword arguments, fig_test and fig_ref, and draw the test and reference images on them. After the function returns, the figures are saved and compared.

Feb 1, 2024 · In this post we’ll test the output of data visualization programs that use Matplotlib. In the end, we’ll be able to run tests against any version of Matplotlib as well. Testing data visualization programs is interesting, because there’s a variety of output.

Mar 9, 2024 · In this article, we will explore the concepts of writing unit tests for code that uses Matplotlib in Python 3, providing explanations, examples, and related evidence. Unit testing allows developers to verify that individual units of code, such as functions or classes, work as expected.

To use matplotcheck to test a plot, you need a copy of the Matplotlib.axis.Axis object that the plot is stored in. This can be prove difficult when testing plots in a Jupyter Notebook, where a Matplotlib.axis.Axis object will not persisit beyond the cell it was created in.

Jun 8, 2021 · You may be able to re-use the Matplotlib test fixtures (source code, API documentation) and look at the Matplotlib tests to see how they are used in practice. Essentially, the comparison mechanism loads both image files via PIL, converts them to NumPy arrays, and tests that the two arrays are equal .

The following are 30 code examples of matplotlib.testing.compare.compare_images(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example.