Run tests via GitHub Actions

.github/workflows/php.yml

@@ -0,0 +1,28 @@
+name: PHP Tests
+
+on: [push]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: OS info
+      run: cat /etc/os-release
+
+    - name: PHP info
+      run: |
+        php -v
+        php -m
+
+    - name: Install dependencies
+      run: composer install --no-progress --no-interaction
+
+    - name: Validate composer.json and composer.lock
+      run: composer validate --no-interaction
+
+    - name: Run tests
+      run: composer test-prod

README.md

@@ -2,7 +2,7 @@ VatCalculator
 ================
 
 [![Software License](https://img.shields.io/badge/license-MIT-brightgreen.svg?style=flat-square)](LICENSE.md)
-[![Build Status](https://travis-ci.org/mpociot/vat-calculator.svg)](https://travis-ci.org/mpociot/vat-calculator)
+[![PHP Tests](https://github.com/spaze/vat-calculator/workflows/PHP%20Tests/badge.svg)](https://github.com/spaze/vat-calculator/actions?query=workflow%3A%22PHP+Tests%22)
 [![Scrutinizer Code Quality](https://scrutinizer-ci.com/g/mpociot/vat-calculator/badges/quality-score.png?b=master)](https://scrutinizer-ci.com/g/mpociot/vat-calculator/?branch=master)
 [![codecov.io](https://codecov.io/github/mpociot/vat-calculator/coverage.svg?branch=master)](https://codecov.io/github/mpociot/vat-calculator?branch=master)
 [![StyleCI](https://styleci.io/repos/41703624/shield)](https://styleci.io/repos/41703624)

composer.json

@@ -29,6 +29,15 @@
 	},
 	"minimum-stability": "stable",
 	"scripts": {
-		"test": "vendor/phpunit/phpunit/phpunit"
+		"phpunit-dev": "php vendor/phpunit/phpunit/phpunit --colors=always --verbose",
+		"phpunit-prod-7.3": "php7.3 vendor/phpunit/phpunit/phpunit --colors=always --verbose",
+		"phpunit-prod-7.4": "php7.4 vendor/phpunit/phpunit/phpunit --colors=always --verbose",
+		"test": [
+			"@phpunit-dev"
+		],
+		"test-prod": [
+			"@phpunit-prod-7.3",
+			"@phpunit-prod-7.4"
+		]
 	}
 }