Add GitHub workflow (#73)

* Update composer.json fix minimum testbech version to suit the minimum PHP version.

* Update phpunit.xml remove no longer used syntaxCheck attribute

* Update .gitignore update vendor pattern.

* Update .gitignore add phpunit cache pattern.

* Update composer.json add testbench different versions.

* Update composer.json remove no longer used 7.5 phphunit version.

* Update composer.json add the new 9.0 phpunit version.

* Add Github Actions file with tests.

* Update run-tests.yml add cache composer dependencies.

Author: kudashevs

.github/workflows/run-tests.yml

@@ -0,0 +1,42 @@
+name: Tests
+
+on: [ push, pull_request ]
+
+jobs:
+    test:
+        runs-on: ubuntu-latest
+        strategy:
+            fail-fast: false
+            matrix:
+                php: [7.2, 7.3, 7.4, 8.0, 8.1]
+                dependency-version: [prefer-lowest, prefer-stable]
+
+        name: P${{ matrix.php }} - ${{ matrix.dependency-version }}
+
+        steps:
+            - name: Checkout code
+              uses: actions/checkout@v2
+
+            - name: Setup PHP
+              uses: shivammathur/setup-php@v2
+              with:
+                  php-version: ${{ matrix.php }}
+                  extensions: mbstring
+                  coverage: none
+
+            -   name: Get composer cache directory
+                id: composer-cache
+                run: echo "::set-output name=dir::$(composer config cache-files-dir)"
+
+            -   name: Cache composer dependencies
+                uses: actions/cache@v2
+                with:
+                    path: ${{ steps.composer-cache.outputs.dir }}
+                    key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.json') }}
+                    restore-keys: ${{ runner.os }}-composer-
+
+            - name: Install dependencies
+              run: |
+                  composer install --no-progress --no-suggest --prefer-dist --optimize-autoloader
+            - name: Execute tests
+              run: vendor/bin/phpunit --no-coverage

.gitignore

@@ -1,2 +1,3 @@
-vendor
-composer.lock
+/vendor/
+.phpunit.result.cache
+composer.lock

composer.json

@@ -24,8 +24,8 @@
         "php": "^7.2|^8.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "^7.5|^8.0",
-        "orchestra/testbench": "~3.8.0",
+        "phpunit/phpunit": "^8.0|^9.0",
+        "orchestra/testbench": "~3.9.0|^4.0|^5.0|^6.0|^7.0",
         "scrutinizer/ocular": "^1.5",
         "squizlabs/php_codesniffer": "~2.3"
     },

phpunit.xml

@@ -8,7 +8,6 @@
          convertWarningsToExceptions="true"
          processIsolation="false"
          stopOnFailure="false"
-         syntaxCheck="false"
 >
     <testsuites>
         <testsuite name="Package Test Suite">