Use GitHub actions for continuous integration (CI)

.gitattributes

@@ -1,6 +1,6 @@
 /.gitattributes export-ignore
+/.github/ 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 +1,46 @@
+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: vendor/bin/phpunit --coverage-text
+        if: ${{ matrix.php >= 7.3 }}
+      - run: 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: hhvm vendor/bin/phpunit

README.md

@@ -1,6 +1,6 @@
 # Dns
 
-[![Build Status](https://travis-ci.org/reactphp/dns.svg?branch=master)](https://travis-ci.org/reactphp/dns)
+[![CI status](https://github.com/reactphp/dns/workflows/CI/badge.svg)](https://github.com/reactphp/dns/actions)
 
 Async DNS resolver for [ReactPHP](https://reactphp.org/).
 
@@ -431,7 +431,7 @@ $ composer require react/dns:^1.4
 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.
 

tests/FunctionalResolverTest.php

@@ -119,6 +119,9 @@ public function testResolveInvalidRejects()
 
     public function testResolveCancelledRejectsImmediately()
     {
+        // max_nesting_level was set to 100 for PHP Versions < 5.4 which resulted in failing test for legacy PHP
+        ini_set('xdebug.max_nesting_level', 256);
+
         $ex = $this->callback(function ($param) {
             return ($param instanceof \RuntimeException && $param->getMessage() === 'DNS query for google.com has been cancelled');
         });