Configure tox for tests

.gitignore

@@ -1,3 +1,4 @@
 .idea
+.tox
 *.egg-info
 mermaid.js

pyproject.toml

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+[build-system]
+requires = ["setuptools>=42.0", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+filterwarnings = ["ignore::DeprecationWarning"]

tests/conftest.py

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+from django.conf import settings
+
+
+def pytest_configure():
+    settings.configure(INSTALLED_APPS=["django_mermaid.apps.MermaidConfig"])

tests/requirements.txt

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+tox==3.24.3
+pytest==6.2.5
+pytest-django==4.5.2

tests/test_tag.py

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+from django_mermaid.templatetags.mermaid import mermaid
+
+
+def test_tag_renders():
+    assert mermaid("graph LR; A-->B;") == (
+        """<div class="mermaid">graph LR; A-->B;</div><script src="mermaid.js"></script>"""
+        """<script>mermaid.initialize({"startOnLoad": true, theme: "default"});</script>"""
+    )

tox.ini

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+[tox]
+envlist =
+    py{36,38,310}-django32
+    py{38,39,310}-django40
+    py{39,310,311}-django{41,main}
+
+[testenv]
+deps =
+    djangomain: https://github.com/django/django/tarball/main
+    django42: django<4.3
+    django41: django<4.2
+    django40: django<4.1
+    django32: django<3.3
+    -r{toxinidir}/tests/requirements.txt
+commands =
+    pip install -e .
+    pytest