Use GitHub actions for continuous integration (CI)

.gitattributes

@@ -1,6 +1,6 @@
 /.gitattributes export-ignore
+/.github/workflows/ export-ignore
 /.gitignore export-ignore
-/.travis.yml export-ignore
 /examples/ export-ignore
 /phpunit.xml.dist export-ignore
 /phpunit.xml.legacy export-ignore

.github/workflows/ci.yml

@@ -0,0 +1,48 @@
+name: CI
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  PHPUnit:
+    name: PHPUnit (PHP ${{ matrix.php }})
+    runs-on: ubuntu-20.04
+    strategy:
+      matrix:
+        php:
+          - 8.0
+          - 7.4
+          - 7.3
+          - 7.2
+          - 7.1
+          - 7.0
+          - 5.6
+          - 5.5
+          - 5.4
+          - 5.3
+    steps:
+      - uses: actions/checkout@v2
+      - uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php }}
+          coverage: xdebug
+      - run: composer install
+      - run: docker run --net=host -d redis
+      - run: REDIS_URI=localhost:6379 vendor/bin/phpunit --coverage-text
+        if: ${{ matrix.php >= 7.3 }}
+      - run: REDIS_URI=localhost:6379 vendor/bin/phpunit --coverage-text -c phpunit.xml.legacy
+        if: ${{ matrix.php < 7.3 }}
+
+  PHPUnit-hhvm:
+    name: PHPUnit (HHVM)
+    runs-on: ubuntu-18.04
+    continue-on-error: true
+    steps:
+      - uses: actions/checkout@v2
+      - uses: azjezz/setup-hhvm@v1
+        with:
+          version: lts-3.30
+      - run: hhvm $(which composer) install
+      - run: docker run --net=host -d redis
+      - run: REDIS_URI=localhost:6379 hhvm vendor/bin/phpunit

.gitignore

@@ -1,2 +1,2 @@
-/vendor
 /composer.lock
+/vendor/

README.md

@@ -1,4 +1,6 @@
-# clue/reactphp-redis [![Build Status](https://travis-ci.org/clue/reactphp-redis.svg?branch=master)](https://travis-ci.org/clue/reactphp-redis)
+# clue/reactphp-redis
+
+[![CI status](https://github.com/clue/reactphp-redis/workflows/CI/badge.svg)](https://github.com/clue/reactphp-redis/actions)
 
 Async [Redis](https://redis.io/) client implementation, built on top of [ReactPHP](https://reactphp.org/).
 
@@ -555,7 +557,7 @@ $ composer require clue/redis-react:^2.4
 See also the [CHANGELOG](CHANGELOG.md) for details about version upgrades.
 
 This project aims to run on any platform and thus does not require any PHP
-extensions and supports running on legacy PHP 5.3 through current PHP 7+ and
+extensions and supports running on legacy PHP 5.3 through current PHP 8+ and
 HHVM.
 It's *highly recommended to use PHP 7+* for this project.
 
@@ -577,7 +579,14 @@ $ php vendor/bin/phpunit
 The test suite contains both unit tests and functional integration tests.
 The functional tests require access to a running Redis server instance
 and will be skipped by default.
-If you want to also run the functional tests, you need to supply *your* login
+
+If you don't have access to a running Redis server, you can also use a temporary `Redis` Docker image:
+
+```bash
+$ docker run --net=host redis
+```
+
+To now run the functional tests, you need to supply *your* login
 details in an environment variable like this:
 
 ```bash