Use GitHub actions

.github/workflows/build.yml

@@ -0,0 +1,47 @@
+name: build
+
+on: [push, pull_request]
+
+env:
+    DEFAULT_COMPOSER_FLAGS: "--prefer-dist --no-interaction --no-progress --optimize-autoloader --ansi"
+
+jobs:
+    phpunit:
+        name: PHP ${{ matrix.php }} on ${{ matrix.os }}
+        runs-on: ${{ matrix.os }}
+        strategy:
+            fail-fast: false
+            matrix:
+                os: [ubuntu-latest]
+                php: ['5.4', '5.5', '5.6', '7.0', '7.1', '7.2', '7.3', '7.4', '8.0']
+
+        steps:
+            - name: Checkout
+              uses: actions/checkout@v2
+            - name: Install PHP
+              uses: shivammathur/setup-php@v2
+              with:
+                  php-version: ${{ matrix.php }}
+            - name: Get composer cache directory
+              id: composer-cache
+              run: echo "::set-output name=dir::$(composer config cache-files-dir)"
+            - name: Cache composer dependencies
+              uses: actions/cache@v1
+              with:
+                  path: ${{ steps.composer-cache.outputs.dir }}
+                  key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
+                  restore-keys: ${{ runner.os }}-composer-
+            - name: Install dependencies
+              run: composer update $DEFAULT_COMPOSER_FLAGS
+            - name: Run unit tests with coverage
+              run: vendor/bin/phpunit --verbose --coverage-clover=coverage.clover --colors=always
+              if: matrix.php == '7.1'
+            - name: Run unit tests without coverage
+              run: vendor/bin/phpunit --verbose --colors=always
+              if: matrix.php != '7.1'
+            - name: Upload code coverage
+              run: |
+                  wget https://scrutinizer-ci.com/ocular.phar
+                  php ocular.phar code-coverage:upload --format=php-clover coverage.clover
+              if: matrix.php == '7.1'
+              continue-on-error: true # if is fork

composer.json

@@ -36,7 +36,8 @@
         "bower-asset/bootstrap": "3.4.* | 3.3.* | 3.2.* | 3.1.*"
     },
     "require-dev": {
-        "phpunit/phpunit": "<7"
+        "cweagans/composer-patches": "^1.7",
+        "phpunit/phpunit": "4.8.34"
     },
     "repositories": [
         {
@@ -52,6 +53,15 @@
     "extra": {
         "branch-alias": {
             "dev-master": "2.0.x-dev"
+        },
+        "patches": {
+            "phpunit/phpunit-mock-objects": {
+                "Fix PHP 7 and 8 compatibility": "https://yiisoft.github.io/phpunit-patches/phpunit_mock_objects.patch"
+            },
+            "phpunit/phpunit": {
+                "Fix PHP 7 compatibility": "https://yiisoft.github.io/phpunit-patches/phpunit_php7.patch",
+                "Fix PHP 8 compatibility": "https://yiisoft.github.io/phpunit-patches/phpunit_php8.patch"
+            }
         }
     }
 }