Add test-sdist and test-wheel steps

Author: timkpaine

README.md

@@ -10,3 +10,5 @@ Helper actions for Python projects
 | [run-cibuildwheel](./run-cibuildwheel)                 | `actions-ext/python/run-cibuildwheel`         | Run [`cibuildwheel`](https://cibuildwheel.readthedocs.io/en/stable/)               |
 | [upload-dist](./upload-dist)                           | `actions-ext/python/upload-dist`              | Upload a python sdist or wheel                                                     |
 | [download-dist](./download-dist)                       | `actions-ext/python/download-dist`            | Download and install a python sdist or wheel                                       |
+| [test-wheel](./test-wheel)                             | `actions-ext/python/test-wheel`               | Install a wheel in a fresh venv and verify module import                           |
+| [test-sdist](./test-sdist)                             | `actions-ext/python/test-sdist`               | Install an sdist in a fresh venv and verify module import                          |

test-sdist/action.yml

@@ -0,0 +1,18 @@
+name: Test Sdist Install
+description: 'Install an sdist from dist/ in a fresh venv and verify a module can be imported'
+
+inputs:
+  module:
+    description: "Python module name to test importing"
+    required: true
+
+runs:
+  using: 'composite'
+  steps:
+    - name: Test sdist install
+      shell: bash
+      run: |
+        python -m venv .test-sdist
+        VENV_BIN=".test-sdist/bin"; [ -d ".test-sdist/Scripts" ] && VENV_BIN=".test-sdist/Scripts"
+        "$VENV_BIN/pip" install dist/*.tar.gz
+        "$VENV_BIN/python" -c "import ${{ inputs.module }}"

test-wheel/action.yml

@@ -0,0 +1,18 @@
+name: Test Wheel Install
+description: 'Install a wheel from dist/ in a fresh venv and verify a module can be imported'
+
+inputs:
+  module:
+    description: "Python module name to test importing"
+    required: true
+
+runs:
+  using: 'composite'
+  steps:
+    - name: Test wheel install
+      shell: bash
+      run: |
+        python -m venv .test-wheel
+        VENV_BIN=".test-wheel/bin"; [ -d ".test-wheel/Scripts" ] && VENV_BIN=".test-wheel/Scripts"
+        "$VENV_BIN/pip" install dist/*.whl
+        "$VENV_BIN/python" -c "import ${{ inputs.module }}"