TST: Use Actions, update test matrix

.github/workflows/ci_workflows.yml

@@ -0,0 +1,53 @@
+name: CI
+
+on:
+  pull_request:
+  push:
+  schedule:
+    # Run every Sunday at 06:53 UTC
+    - cron: 53 6 * * 0
+
+jobs:
+  tests:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: ubuntu-latest
+            python-version: 3.6
+            toxenv: py36-test-pytest46
+          - os: windows-latest
+            python-version: 3.6
+            toxenv: py36-test-pytest50
+          - os: macos-latest
+            python-version: 3.7
+            toxenv: py37-test-pytest51
+          - os: ubuntu-latest
+            python-version: 3.7
+            toxenv: py37-test-pytest52
+          - os: windows-latest
+            python-version: 3.8
+            toxenv: py38-test-pytest53
+          - os: ubuntu-latest
+            python-version: 3.8
+            toxenv: py38-test-pytest60
+          - os: macos-latest
+            python-version: 3.9
+            toxenv: py39-test-pytest61
+          - os: ubuntu-latest
+            python-version: 3.9
+            toxenv: py39-test-pytestdev
+
+    steps:
+    - uses: actions/checkout@v2
+      with:
+        fetch-depth: 0
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v2
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install Tox
+      run: python -m pip install tox
+    - name: Run Tox
+      run: tox -v -e ${{ matrix.toxenv }}

README.rst

@@ -1,4 +1,6 @@
-|Travis Build Status| |AppVeyor Build status| |Coverage|
+.. image:: https://github.com/astropy/pytest-arraydiff/workflows/CI/badge.svg
+    :target: https://github.com/astropy/pytest-arraydiff/actions
+    :alt: CI Status
 
 About
 -----
@@ -186,10 +188,3 @@ install the latest version of the plugin then do::
 
 The reason for having to install the plugin first is to ensure that the
 plugin is correctly loaded as part of the test suite.
-
-.. |Travis Build Status| image:: https://travis-ci.org/astrofrog/pytest-arraydiff.svg?branch=master
-   :target: https://travis-ci.org/astrofrog/pytest-arraydiff
-.. |AppVeyor Build status| image:: https://ci.appveyor.com/api/projects/status/0nech6qgp8jlabjp/branch/master?svg=true
-   :target: https://ci.appveyor.com/project/astropy/pytest-arraydiff
-.. |Coverage| image:: https://codecov.io/gh/astropy/pytest-arraydiff/branch/master/graph/badge.svg
-  :target: https://codecov.io/gh/astropy/pytest-arraydiff

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 envlist =
-    py{36,37,38}-test{,-devdeps}
+    py{36,37,38,39}-test{,-devdeps}
     codestyle
 requires =
     setuptools >= 30.3.0
@@ -17,6 +17,7 @@ deps =
     pytest52: pytest==5.2.*
     pytest53: pytest==5.3.*
     pytest60: pytest==6.0.*
+    pytest61: pytest==6.1.*
     pytestdev: git+https://github.com/pytest-dev/pytest#egg=pytest
 
 commands =