[FEATURE] LockBuilder initialized

Classes/LockBuilder.php

+<?php
+
+namespace Higidi\Lock;
+
+use TYPO3\CMS\Core\SingletonInterface;
+
+/**
+ * Lock implementation builder class.
+ */
+class LockBuilder implements SingletonInterface
+{
+}

Tests/Unit/LockBuilderTest.php

+<?php
+
+namespace Higidi\Lock\Tests\Unit;
+
+use Higidi\Lock\LockBuilder;
+use TYPO3\CMS\Core\SingletonInterface;
+use TYPO3\CMS\Core\Tests\UnitTestCase;
+
+/**
+ * Test case for "\Higidi\Lock\LockBuilder".
+ *
+ * @covers \Higidi\Lock\LockBuilder
+ */
+class LockBuilderTest extends UnitTestCase
+{
+    /**
+     * @test
+     */
+    public function itIsASingleton()
+    {
+        $sut = new LockBuilder();
+
+        $this->assertInstanceOf(SingletonInterface::class, $sut);
+    }
+}