use exdown for testing

Author: nschloe

.github/workflows/ci.yml

@@ -31,10 +31,6 @@ jobs:
     - uses: actions/checkout@v2
     - name: Install system dependencies
       run: sudo apt-get install -y texlive-latex-base texlive-latex-extra context python3-tk
-    - name: Extract tests from README
-      run: |
-        pip install excode
-        excode README.md test/zzz_readme_test.py --filter python,test
     - name: Test with tox
       run: |
         pip install tox

README.md

@@ -3,7 +3,7 @@
   <p align="center">The artist formerly known as *matplotlib2tikz.*</p>
 </p>
 
-[![CircleCI](https://img.shields.io/circleci/project/github/nschloe/tikzplotlib/master.svg?style=flat-square)](https://circleci.com/gh/nschloe/tikzplotlib/tree/master)
+[![gh-actions](https://img.shields.io/github/workflow/status/nschloe/tikzplotlib/ci?style=flat-square)](https://github.com/nschloe/tikzplotlib/actions?query=workflow%3Aci)
 [![codecov](https://img.shields.io/codecov/c/github/nschloe/tikzplotlib.svg?style=flat-square)](https://codecov.io/gh/nschloe/tikzplotlib)
 [![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg?style=flat-square)](https://github.com/psf/black)
 [![Documentation Status](https://readthedocs.org/projects/tikzplotlib/badge/?version=latest&style=flat-square)](https://readthedocs.org/projects/tikzplotlib/?badge=latest)
@@ -33,7 +33,7 @@ of axes, data etc. Consequently, the output of tikzplotlib
 
 than [raw TikZ output](https://matplotlib.org/users/whats_new.html#pgf-tikz-backend).
 For example, the matplotlib figure
-```python,test
+```python
 import matplotlib.pyplot as plt
 import numpy as np
 

test/test_cleanfigure.py

@@ -1,7 +1,7 @@
 import numpy as np
+import pytest
 from matplotlib import pyplot as plt
 
-import pytest
 from tikzplotlib import clean_figure, get_tikz_code
 
 RC_PARAMS = {"figure.figsize": [5, 5], "figure.dpi": 220, "pgf.rcfonts": False}

test/test_rotated_labels.py

@@ -1,9 +1,9 @@
 import os
 import tempfile
 
+import pytest
 from matplotlib import pyplot as plt
 
-import pytest
 import tikzplotlib
 
 

tox.ini

@@ -4,6 +4,7 @@ isolated_build = True
 
 [testenv]
 deps =
+    exdown
     pandas
     pytest
     pytest-cov