Update tox.ini

Author: stephane-caron

tox.ini

@@ -9,29 +9,59 @@ python =
     3.9: py39
     3.10: py310
 
-[testenv]
+[gh-actions:env]
+LOADER =
+    mujoco: mujoco
+    pinocchio: pinocchio
+    pybullet: pybullet
+    robomeshcat: robomeshcat
+    yourdfpy: yourdfpy
+
+[testenv:coverage]
 deps =
     GitPython >=3.1.18
-    black
     coverage
+    tqdm >=4.64.0
+    mujoco >=2.2.1
+    pin >=2.6.10
+    pybullet >=3.2.5
+    robomeshcat >= 1.0.3
+    yourdfpy >=0.0.52
+commands =
+    coverage erase
+    coverage run -m unittest tests
+    coverage report --include="robot_descriptions/**"
+
+[testenv:lint]
+deps =
+    GitPython >=3.1.18
+    black
     flake8
     mccabe
-    mujoco >=2.2.1
     mypy
-    pybullet >=3.2.5
     pylint
+    mujoco >=2.2.1
     py{38,39}: pin >=2.6.10
+    pybullet >=3.2.5
     py{38,39}: robomeshcat >= 1.0.3
-    tqdm >=4.64.0
     yourdfpy >=0.0.52
 commands =
     black robot_descriptions
     flake8 robot_descriptions
     pylint robot_descriptions --exit-zero --rcfile={toxinidir}/tox.ini
     mypy robot_descriptions --ignore-missing-imports
-    coverage erase
-    coverage run -m unittest tests.test_robomeshcat
-    coverage report --include="robot_descriptions/*"
+
+[testenv:loaders]
+deps =
+    GitPython >=3.1.18
+    pytest
+    mujoco: mujoco >=2.2.1
+    pinocchio-py{38,39}: pin >=2.6.10
+    pybullet: pybullet >=3.2.5
+    robomeshcat-py{38,39}: robomeshcat >= 1.0.3
+    yourdfpy: yourdfpy >=0.0.52
+commands =
+    pytest tests/loaders/test_{env:LOADER}.py
 
 [flake8]
 max-line-length = 88