Add unit test case to ValueToClassTransformer

tests/Unit/Core/Configuration/ValueTransformer/ValueToClassTransformerTest.php

@@ -0,0 +1,85 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Test\Unit\Core\Configuration\ValueTransformer;
+
+use BumbleDocGen\Core\Cache\LocalCache\LocalObjectCache;
+use BumbleDocGen\Core\Configuration\Configuration;
+use BumbleDocGen\Core\Configuration\ConfigurationParameterBag;
+use BumbleDocGen\Core\Configuration\ValueTransformer\ValueToClassTransformer;
+use BumbleDocGen\DocGeneratorFactory;
+use BumbleDocGen\LanguageHandler\Php\Parser\Entity\ClassEntityCollection;
+use BumbleDocGen\LanguageHandler\Php\PhpHandler;
+use BumbleDocGen\LanguageHandler\Php\PhpHandlerSettings;
+use DI\Container;
+use Exception;
+use PHPUnit\Framework\TestCase;
+use Psr\Log\NullLogger;
+
+final class ValueToClassTransformerTest extends TestCase
+{
+    protected ValueToClassTransformer $valueToClassTransformer;
+
+    public function setUp(): void
+    {
+        $this->valueToClassTransformer = new ValueToClassTransformer(new Container());
+    }
+
+    public function testCanTransform(): void
+    {
+        $this->assertFalse($this->valueToClassTransformer->canTransform(''));
+
+        $this->assertFalse($this->valueToClassTransformer->canTransform([]));
+
+        $this->assertFalse($this->valueToClassTransformer->canTransform([
+            'class' => 'ClassThatDoesntExists'
+        ]));
+
+        $this->assertTrue($this->valueToClassTransformer->canTransform([
+            'class' => ValueToClassTransformer::class
+        ]));
+    }
+
+    public function testTransform(): void
+    {
+        $value = [
+            'class' => Exception::class,
+        ];
+
+        $class = $this->valueToClassTransformer->transform($value);
+        $this->assertInstanceOf(Exception::class, $class);
+
+        $value = [
+            'class' => DocGeneratorFactory::class,
+        ];
+
+        $class = $this->valueToClassTransformer->transform($value);
+        $this->assertInstanceOf(DocGeneratorFactory::class, $class);
+
+        $value = [
+            'class' => Configuration::class,
+            'arguments' => [
+                [
+                    'class' => ConfigurationParameterBag::class,
+                    'arguments' => [
+                        ['class' => ValueToClassTransformer::class],
+                        []
+                    ]
+                ],
+                [
+                    'class' => LocalObjectCache::class
+                ],
+                [
+                    'class' => NullLogger::class
+                ]
+            ]
+        ];
+
+        $class = $this->valueToClassTransformer->transform($value);
+        $this->assertInstanceOf(Configuration::class, $class);
+
+
+        $this->assertNull($this->valueToClassTransformer->transform(''));
+    }
+}