Migrate PHPUnit Tests and Use WordPress test lib instead of WP Mocks

.github/workflows/test.yml

@@ -1,4 +1,4 @@
-name: Test
+name: PHPUnit Tests
 
 env:
   COMPOSER_VERSION: "2"
@@ -16,7 +16,6 @@ on:
       - develop
 
 jobs:
-
   phpunit:
     name: ${{ matrix.php }} on ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
@@ -27,30 +26,35 @@ jobs:
         os: [ ubuntu-latest ]
 
     steps:
-    - name: Checkout
-      uses: actions/checkout@v2.4.0
-
-    - name: Set standard 10up cache directories
-      run: |
-        composer config -g cache-dir "${{ env.COMPOSER_CACHE }}"
-
-    - name: Prepare composer cache
-      uses: actions/cache@v2
-      with:
-        path: ${{ env.COMPOSER_CACHE }}
-        key: composer-${{ env.COMPOSER_VERSION }}-${{ hashFiles('**/composer.lock') }}
-        restore-keys: |
-          composer-${{ env.COMPOSER_VERSION }}-
-
-    - name: Set PHP version
-      uses: shivammathur/setup-php@2.17.0
-      with:
-        php-version: ${{ matrix.php }}
-        coverage: none
-        tools: phpunit-polyfills, composer:v2
-
-    - name: Install dependencies
-      run: composer update -W
-
-    - name: PHPUnit
-      run: './vendor/bin/phpunit'
+      - name: Checkout
+        uses: actions/checkout@v2.4.0
+
+      - name: Set standard 10up cache directories
+        run: |
+          composer config -g cache-dir "${{ env.COMPOSER_CACHE }}"
+
+      - name: Prepare composer cache
+        uses: actions/cache@v2
+        with:
+          path: ${{ env.COMPOSER_CACHE }}
+          key: composer-${{ env.COMPOSER_VERSION }}-${{ hashFiles('**/composer.lock') }}
+          restore-keys: |
+            composer-${{ env.COMPOSER_VERSION }}-
+
+      - uses: getong/mariadb-action@v1.1
+
+      - name: Set PHP version
+        uses: shivammathur/setup-php@2.17.0
+        with:
+          php-version: ${{ matrix.php }}
+          coverage: none
+          tools: phpunit-polyfills, composer:v2
+
+      - name: Install dependencies
+        run: composer update -W
+
+      - name: Setup WP Tests
+        run: bash tests/bin/install-wp-tests.sh wordpress_test root '' 127.0.0.1
+
+      - name: PHPUnit
+        run: composer run test

composer.json

@@ -20,12 +20,16 @@
       "Distributor\\": "includes/classes/"
     }
   },
+  "autoload-dev": {
+    "psr-4": {
+      "Distributor\\Tests\\": "tests/php/"
+    }
+  },
   "require-dev": {
     "10up/phpcs-composer": "dev-master",
-    "10up/wp_mock": "~0.4",
-    "phpunit/phpunit": ">=7.0 <9.0",
-    "yoast/phpunit-polyfills": "^1.0",
-    "automattic/vipwpcs": "^2.3"
+    "automattic/vipwpcs": "^2.3",
+    "php-stubs/wordpress-tests-stubs": "^6.3",
+    "yoast/phpunit-polyfills": "dev-main"
   },
   "scripts": {
     "lint": "@php phpcs . --runtime-set testVersion 7.4-",
@@ -38,6 +42,9 @@
     "allow-plugins": {
       "composer/installers": true,
       "dealerdirect/phpcodesniffer-composer-installer": true
+    },
+    "platform": {
+      "php": "7.4"
     }
   }
 }