Switch to GitHub Actions (#26)

* Add test action

* Remove Travis

* Fix tests

* Add phpstan ignore errors file

* Remove phpstan path

* Trigger Action

* Revert previous commit

.github/workflows/tests.yml

@@ -0,0 +1,33 @@
+name: tests
+on:
+  push:
+  pull_request:
+  schedule:
+    - cron: '0 0 * * *'
+jobs:
+  tests:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: true
+      matrix:
+        php: [7.4, 8.0, 8.1]
+    name: PHP - ${{ matrix.php }}
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php }}
+          extensions: dom, curl, libxml, mbstring, zip
+          tools: composer:v2
+          coverage: none
+      - name: Install dependencies
+        run: |
+          composer update --prefer-dist --no-interaction --no-progress
+      - name: PHPStan
+        run: |
+          composer require "phpstan/phpstan:0.12.99"
+          vendor/bin/phpstan analyse --no-progress
+      - name: Execute tests
+        run: vendor/bin/phpunit --verbose

.phpstan.ignoreErrors.neon

@@ -0,0 +1,2 @@
+parameters:
+    ignoreErrors: []

phpstan.neon

@@ -0,0 +1,9 @@
+parameters:
+    level: 1
+    paths:
+        - %currentWorkingDirectory%/src
+        - %currentWorkingDirectory%/tests
+    excludes_analyse:
+        - %currentWorkingDirectory%/vendor
+includes:
+    - .phpstan.ignoreErrors.neon