ci: add a minimum dependencies test (#387)

.github/workflows/minimum-dependencies.yml

@@ -0,0 +1,34 @@
+name: minimum-dependencies
+
+on:
+  push:
+    branches: ['main']
+    paths-ignore: ['**.md', 'docs/**']
+  pull_request:
+    paths-ignore: ['**.md', 'docs/**']
+  workflow_dispatch:
+
+concurrency:
+  group: 'minimum-dependencies-${{ github.head_ref || github.run_id }}'
+  cancel-in-progress: true
+
+jobs:
+  run:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+        lfs: true
+    - name: Setup Python
+      uses: actions/setup-python@v4
+      with:
+        python-version: "3.9"
+    - name: Install
+      run: |
+        python3 -m pip install pip build wheel pytest -U
+        python3 -m pip install -e . -vv
+    - name: Run tests
+      run: |
+        python3 -m pytest

pyproject.toml

@@ -48,7 +48,6 @@ Homepage = "https://github.com/dask-contrib/dask-awkward"
 
 [project.optional-dependencies]
 io = [
-  "aiohttp;python_version<\"3.12\"",
   "pyarrow;python_version<\"3.12\"",
 ]
 complete = [
@@ -60,17 +59,17 @@ docs = [
   "dask-sphinx-theme >=3.0.2",
   "sphinx-design",
   "sphinx-codeautolink",
-  "requests >=2.27.1",
 ]
 test = [
+  "aiohttp;python_version<\"3.12\"",
   "dask-awkward[complete]",
   "dask-histogram",
   "distributed",
   "hist",
   "pandas",
   "pytest >=6.0",
   "pytest-cov >=3.0.0",
-  "requests >=2.27.1",
+  "requests",
   "uproot >=5.1.0rc1",
 ]
 

tests/test_core.py

@@ -822,6 +822,7 @@ def test_map_partitions_no_dask_collections_passed(caa):
 @pytest.mark.parametrize("fn", [dak.count, dak.zeros_like, dak.ones_like])
 def test_shape_only_ops(fn: Callable, tmp_path_factory: pytest.TempPathFactory) -> None:
     pytest.importorskip("pyarrow")
+    pytest.importorskip("pandas")
     a = ak.Array([{"a": 1, "b": 2}, {"a": 3, "b": 4}])
     p = tmp_path_factory.mktemp("zeros-like-flat")
     ak.to_parquet(a, str(p / "file.parquet"))

tests/test_io_text.py

@@ -8,9 +8,12 @@
 import dask_awkward as dak
 from dask_awkward.lib.testutils import assert_eq
 
+pytest.importorskip("pyarrow")
+pytest.importorskip("requests")
+pytest.importorskip("aiohttp")
+
 
 def test_from_text() -> None:
-    pytest.importorskip("pyarrow")
     f1 = "https://raw.githubusercontent.com/dask-contrib/dask-awkward/main/README.md"
     f2 = "https://raw.githubusercontent.com/dask-contrib/dask-awkward/main/LICENSE"
 

tests/test_parquet.py

@@ -5,6 +5,8 @@
 import pytest
 
 pytest.importorskip("pyarrow")
+pytest.importorskip("requests")
+pytest.importorskip("aiohttp")
 
 import awkward as ak
 import fsspec