CI: remove unneeded install of graphviz on ubuntu

.github/workflows/main.yml

@@ -38,7 +38,7 @@ jobs:
           allow-prereleases: true
       - run: pip install tox
 
-      - if: matrix.os == 'ubunut-latest'
+      - if: matrix.os == 'ubuntu-latest'
         run: |
           sudo apt-get update
           sudo apt-get install graphviz graphviz-dev

docs/source/changes.md

@@ -5,6 +5,10 @@ chronological order. Releases follow [semantic versioning](https://semver.org/)
 releases are available on [PyPI](https://pypi.org/project/pytask) and
 [Anaconda.org](https://anaconda.org/conda-forge/pytask).
 
+## 0.4.5 - 2023-12-xx
+
+- {pull}`515` enables tests with graphviz in CI. Thanks to {user}`NickCrews`.
+
 ## 0.4.4 - 2023-12-04
 
 - {pull}`509` improves the documentation.

pyproject.toml

@@ -69,7 +69,14 @@ docs = [
   "sphinx-toolbox",
   "sphinxext-opengraph",
 ]
-test = ["pytest", "pytest-cov", "pytest-xdist", "syrupy", "deepdiff", "pexpect"]
+test = [
+  "deepdiff",
+  "pexpect",
+  "pytest",
+  "pytest-cov",
+  "pytest-xdist",
+  "syrupy",
+]
 
 [project.urls]
 Changelog = "https://pytask-dev.readthedocs.io/en/stable/changes.html"

tests/test_dag_command.py

@@ -1,6 +1,6 @@
 from __future__ import annotations
 
-import shutil
+import os
 import sys
 import textwrap
 
@@ -16,26 +16,18 @@
 else:
     _IS_PYGRAPHVIZ_INSTALLED = True
 
+# Test should run always on remote except on Windows and locally only with the package
+# installed.
+_TEST_SHOULD_RUN = _IS_PYGRAPHVIZ_INSTALLED or (
+    os.environ.get("CI") and sys.platform != "win32"
+)
 _GRAPH_LAYOUTS = ["neato", "dot", "fdp", "sfdp", "twopi", "circo"]
-
-
-_PARAMETRIZED_LAYOUTS = [
-    pytest.param(
-        layout,
-        marks=pytest.mark.skip(reason=f"{layout} not available")
-        if shutil.which(layout) is None
-        else [],
-    )
-    for layout in _GRAPH_LAYOUTS
-]
-
-
 _TEST_FORMATS = ["dot", "pdf", "png", "jpeg", "svg"]
 
 
 @pytest.mark.end_to_end()
-@pytest.mark.skipif(not _IS_PYGRAPHVIZ_INSTALLED, reason="pygraphviz is required")
-@pytest.mark.parametrize("layout", _PARAMETRIZED_LAYOUTS)
+@pytest.mark.skipif(not _TEST_SHOULD_RUN, reason="pygraphviz is required")
+@pytest.mark.parametrize("layout", _GRAPH_LAYOUTS)
 @pytest.mark.parametrize("format_", _TEST_FORMATS)
 @pytest.mark.parametrize("rankdir", ["LR"])
 def test_create_graph_via_cli(tmp_path, runner, format_, layout, rankdir):
@@ -70,8 +62,8 @@ def task_example(): pass
 
 
 @pytest.mark.end_to_end()
-@pytest.mark.skipif(not _IS_PYGRAPHVIZ_INSTALLED, reason="pygraphviz is required")
-@pytest.mark.parametrize("layout", _PARAMETRIZED_LAYOUTS)
+@pytest.mark.skipif(not _TEST_SHOULD_RUN, reason="pygraphviz is required")
+@pytest.mark.parametrize("layout", _GRAPH_LAYOUTS)
 @pytest.mark.parametrize("format_", _TEST_FORMATS)
 @pytest.mark.parametrize("rankdir", [_RankDirection.LR.value, _RankDirection.TB])
 def test_create_graph_via_task(tmp_path, runner, format_, layout, rankdir):

tox.ini

@@ -2,16 +2,13 @@
 envlist = pytest
 
 [testenv]
+passenv = CI
 usedevelop = true
-platform =
-    linux: linux
-    macos: darwin
-    windows: win32
 
 [testenv:pytest]
 extras = test
 deps =
-    linux, macos: pygraphviz
+    pygraphviz;platform_system != "Windows"
 
 commands =
     pytest {posargs} -vv