ci: Test against multiple Python versions

.github/workflows/tests.yml

@@ -0,0 +1,29 @@
+# name: Run updater that will check for conda-forge packages
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+jobs:
+  run_tests:
+    name: ${{ matrix.pixi-environment }}
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        pixi-environment:
+          - py312
+          - py311
+          - py310
+    steps:
+        - uses: actions/checkout@v4
+        - uses: prefix-dev/setup-pixi@v0.5.1
+          with:
+            pixi-version: "latest"
+            environments: ${{ matrix.pixi-environment }}
+        - name: run tests
+          run: |
+           pixi run --environment ${{ matrix.pixi-environment }} test

pixi.toml

@@ -7,7 +7,6 @@ channels = ["conda-forge"]
 platforms = ["win-64", "linux-64", "osx-64", "osx-arm64"]
 
 [tasks]
-
 build_sdist = "pixi run python -m build --sdist"
 
 [dependencies]
@@ -24,16 +23,14 @@ typing-extensions = ">=4.12.2,<4.13"
 [pypi-dependencies]
 rattler-build-conda-compat = { path = ".", editable = true}
 
-
 [feature.test.dependencies]
 pytest = "*"
 syrupy = "*"
 ruff = "*"
 
 [feature.test.tasks]
-test = "pytest"
-snapshot_update = "pytest --snapshot-update"
-
+test = "pytest tests"
+snapshot_update = "pytest --snapshot-update tests"
 
 [feature.lint.dependencies]
 pre-commit = ">=3.7.1,<4"
@@ -48,7 +45,17 @@ pre-commit-install = "pre-commit-install"
 pre-commit-run = "pre-commit run"
 type-check = "mypy src"
 
+[feature.py312.dependencies]
+python = "3.12.*"
+
+[feature.py311.dependencies]
+python = "3.11.*"
+
+[feature.py310.dependencies]
+python = "3.10.*"
 
 [environments]
-test = ["test"]
+py312 = { features = ["py312"], solve-group = "py312" }
+py311 = ["py311"]
+py310 = ["py310"]
 lint = { features = ["lint"], no-default-feature = true, solve-group = "default" }