Try switching to GitHub Actions for continuous integration testing

.github/workflows/requirements-middle.txt

@@ -0,0 +1,2 @@
+numpy==1.19.4
+scipy==1.5.4

.github/workflows/requirements-newest.txt

@@ -0,0 +1,2 @@
+numpy==1.22.1
+scipy==1.7.3

.github/workflows/requirements-oldest.txt

@@ -0,0 +1,2 @@
+numpy==1.13.1
+scipy==0.19.1

.github/workflows/test.yml

@@ -0,0 +1,61 @@
+name: Run all tests
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  test:
+    name: Test on ${{ matrix.os }} with Python ${{ matrix.python-version }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: true
+      matrix:
+        python-version: ["3.6", "3.9", "3.10"]
+        req-version: ["oldest", "middle", "newest"]
+        os: ["ubuntu-latest"]
+        exclude:
+          - python-version: "3.6"
+            numpy-version: "newest"
+          - python-version: "3.9"
+            numpy-version: "oldest"
+          - python-version: "3.10"
+            numpy-version: "oldest"
+          - python-version: "3.10"
+            numpy-version: "middle"
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v5
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install requirements ${{ matrix.req-version }}
+      run: |
+        python -m pip install --upgrade pip
+        pip install -r .github/workflows/requirements-${{ matrix.numpy-version }}.txt
+        pip install pytest pytest-cov
+        pip install .
+    - name: Run tests
+      run: |
+        pytest --cov=lazyarray -v
+  #   - name: Upload coverage data
+  #     run: |
+  #       coveralls --service=github
+  #     env:
+  #       GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+  #       COVERALLS_FLAG_NAME: ${{ matrix.test-name }}
+  #       COVERALLS_PARALLEL: true
+  # coveralls:
+  #   name: Indicate completion to coveralls.io
+  #   needs: test
+  #   runs-on: ubuntu-latest
+  #   container: python:3-slim
+  #   steps:
+  #   - name: Finished
+  #     run: |
+  #       pip3 install --upgrade coveralls
+  #       coveralls --service=github --finish
+  #     env:
+  #       GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

setup.py

@@ -4,7 +4,7 @@
 
 setup(
     name='lazyarray',
-    version='0.5.2',
+    version='0.5.3.dev',
     py_modules=['lazyarray'],
     license='Modified BSD',
     author="Andrew P. Davison",