Merge branch 'gh-actions'

Closes #30

.github/workflows/coding-standards.yml

@@ -0,0 +1,45 @@
+name: "Check Coding Standards"
+
+on:
+  pull_request:
+  push:
+
+jobs:
+  coding-standards:
+    name: "Check Coding Standards"
+
+    runs-on: ${{ matrix.operating-system }}
+
+    strategy:
+      matrix:
+        php-version:
+          - "7.4"
+        operating-system:
+          - "ubuntu-latest"
+
+    steps:
+      - name: "Checkout"
+        uses: "actions/checkout@v2"
+
+      - name: "Install PHP"
+        uses: "shivammathur/setup-php@v2"
+        with:
+          coverage: "pcov"
+          php-version: "${{ matrix.php-version }}"
+          ini-values: memory_limit=-1
+          tools: composer:v2, cs2pr
+
+      - name: "Cache dependencies"
+        uses: "actions/cache@v2"
+        with:
+          path: |
+            ~/.composer/cache
+            vendor
+          key: "php-${{ matrix.php-version }}-${{ matrix.dependencies }}"
+          restore-keys: "php-${{ matrix.php-version }}-${{ matrix.dependencies }}"
+
+      - name: "Install dependencies"
+        run: "composer update --no-interaction --no-progress --no-suggest"
+
+      - name: "Coding Standard"
+        run: "vendor/bin/phpcs -q --report=checkstyle | cs2pr"

.github/workflows/unit-tests.yml

@@ -0,0 +1,58 @@
+name: "PHPUnit tests"
+
+on:
+  pull_request:
+  push:
+
+jobs:
+  phpunit:
+    name: "PHPUnit tests"
+
+    runs-on: ${{ matrix.operating-system }}
+
+    strategy:
+      matrix:
+        dependencies:
+          - "lowest"
+          - "highest"
+        php-version:
+          - "7.2"
+          - "7.3"
+          - "7.4"
+          - "8.0"
+        operating-system:
+          - "ubuntu-latest"
+
+    steps:
+      - name: "Checkout"
+        uses: "actions/checkout@v2"
+        with:
+          fetch-depth: 0
+
+      - name: "Install PHP"
+        uses: "shivammathur/setup-php@v2"
+        with:
+          coverage: "pcov"
+          php-version: "${{ matrix.php-version }}"
+          ini-values: memory_limit=-1
+          tools: composer:v2, cs2pr
+
+      - name: "Cache dependencies"
+        uses: "actions/cache@v2"
+        with:
+          path: |
+            ~/.composer/cache
+            vendor
+          key: "php-${{ matrix.php-version }}-${{ matrix.dependencies }}"
+          restore-keys: "php-${{ matrix.php-version }}-${{ matrix.dependencies }}"
+
+      - name: "Install lowest dependencies"
+        if: ${{ matrix.dependencies == 'lowest' }}
+        run: "composer update --prefer-lowest --no-interaction --no-progress --no-suggest"
+
+      - name: "Install highest dependencies"
+        if: ${{ matrix.dependencies == 'highest' }}
+        run: "composer update --no-interaction --no-progress --no-suggest"
+
+      - name: "Tests"
+        run: "vendor/bin/phpunit"