[OC-46944]Fix signatures methods of ConnectionMock. (#18)

* chore(lib): fix signatures methods of ConnectionMock.

Author: nenrici

Tests/DependencyInjection/Fixtures/Util/ConnectionMock.php

@@ -73,17 +73,17 @@ public function isTransactionActive()
     /**
      * {@inheritDoc}
      */
-    public function prepare($sql)
+    public function prepare($sql): StatementSpy
     {
-        return null;
+        return new StatementSpy();
     }
 
     /**
      * {@inheritDoc}
      */
-    public function query()
+    public function query(string $sql): ResultSpy
     {
-        return null;
+        return new ResultSpy();
     }
 
     /**
@@ -97,9 +97,9 @@ public function quote($value, $type = ParameterType::STRING)
     /**
      * {@inheritDoc}
      */
-    public function exec($sql)
+    public function exec($sql): int
     {
-        return null;
+        return 1;
     }
 
     /**

Tests/DependencyInjection/Fixtures/Util/ResultSpy.php

@@ -0,0 +1,44 @@
+<?php
+
+namespace OpenClassrooms\Bundle\UseCaseBundle\Tests\DependencyInjection\Fixtures\Util;
+
+use Doctrine\DBAL\Driver\Result;
+
+class ResultSpy implements Result
+{
+    public function fetchNumeric()
+    {
+    }
+
+    public function fetchAssociative()
+    {
+    }
+
+    public function fetchOne()
+    {
+    }
+
+    public function fetchAllNumeric(): array
+    {
+    }
+
+    public function fetchAllAssociative(): array
+    {
+    }
+
+    public function fetchFirstColumn(): array
+    {
+    }
+
+    public function rowCount(): int
+    {
+    }
+
+    public function columnCount(): int
+    {
+    }
+
+    public function free(): void
+    {
+    }
+}

Tests/DependencyInjection/Fixtures/Util/StatementSpy.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace OpenClassrooms\Bundle\UseCaseBundle\Tests\DependencyInjection\Fixtures\Util;
+
+use Doctrine\DBAL\Driver\Result;
+use Doctrine\DBAL\Driver\Statement;
+use Doctrine\DBAL\ParameterType;
+
+class StatementSpy implements Statement
+{
+    public function bindValue($param, $value, $type = ParameterType::STRING)
+    {
+    }
+
+    public function bindParam($param, &$variable, $type = ParameterType::STRING, $length = null)
+    {
+    }
+
+    public function execute($params = null): Result
+    {
+    }
+}