fixed get DB version code; added coding style workflow

.github/workflows/coding-styles.yml

@@ -0,0 +1,35 @@
+name: "Coding Styles"
+
+on: [push, pull_request]
+
+jobs:
+    tests:
+        name: Coding Styles
+        runs-on: ubuntu-latest
+
+        strategy:
+            fail-fast: true
+            matrix:
+                php:
+                    - 8.2
+
+        steps:
+            -   name: Checkout
+                uses: actions/checkout@v2
+
+            -   name: Install PHP
+                uses: shivammathur/setup-php@v2
+                with:
+                    php-version: ${{ matrix.php }}
+                    coverage: xdebug
+                    ini-values: memory_limit=1G
+                    tools: cs2pr
+
+            -   name: Validate Composer files
+                run: composer validate --no-check-all --strict
+
+            -   name: Install Composer dependencies
+                run: composer install --no-progress --no-suggest --prefer-dist --optimize-autoloader
+
+            -   name: Coding styles
+                run: php vendor/bin/php-cs-fixer fix --verbose --dry-run --format=checkstyle | cs2pr

src/ARC2/Store/Adapter/AbstractAdapter.php

@@ -28,7 +28,7 @@ abstract class AbstractAdapter
     protected $queries = [];
 
     /**
-     * @param array $configuration Default is array().
+     * @param array $configuration default is array()
      */
     public function __construct(array $configuration = [])
     {

src/ARC2/Store/Adapter/PDOAdapter.php

@@ -12,8 +12,6 @@
 
 namespace ARC2\Store\Adapter;
 
-use Exception;
-
 /**
  * PDO Adapter - Handles database operations using PDO.
  */
@@ -242,7 +240,7 @@ public function getServerVersion(): string
             return $this->db->query('select version()')->fetchColumn();
         }
 
-        throw new Exception('You need to connect to DB server first. Use connect() before this function.');
+        throw new \Exception('You need to connect to DB server first. Use connect() before this function.');
     }
 
     public function getErrorCode()

tests/db_adapter_depended/store/ARC2_StoreTest.php

@@ -320,10 +320,10 @@ public function testEnableFulltextSearch()
     // just check pattern
     public function testGetDBVersion()
     {
-        $pattern = '/[0-9]{1,}\.[0-9]{1,}\.[0-9]{2}/';
-
-        $result = preg_match($pattern, $this->fixture->getDBVersion(), $match);
-        $this->assertEquals(1, $result, $this->fixture->getDBVersion());
+        $this->assertEquals(
+            $this->fixture->getDBObject()->getConnection()->query('select version()')->fetchColumn(),
+            $this->fixture->getDBVersion()
+        );
     }
 
     /*

tests/integration/src/ARC2/Store/Adapter/AbstractAdapterTest.php

@@ -227,10 +227,10 @@ public function testQuery()
 
     public function testGetServerVersion()
     {
-        $pattern = '/[0-9]{1,}\.[0-9]{1,}\.[0-9]{2}/';
-
-        // check that server version looks like 5.5.21
-        $this->assertEquals(1, preg_match($pattern, $this->fixture->getServerVersion()));
+        $this->assertEquals(
+            $this->fixture->getConnection()->query('select version()')->fetchColumn(),
+            $this->fixture->getServerVersion()
+        );
     }
 
     /*