file with proper extension can be set

Author: ibudasov

src/IptcManager.php

@@ -0,0 +1,30 @@
+<?php
+
+declare(strict_types=1);
+
+namespace IgorBudasov\IptcManager;
+
+class IptcManager
+{
+    private const SUPPORTED_FILE_TYPES = ['jpg', 'jpeg', 'pjpeg'];
+
+    /**
+     * @var string
+     */
+    private $pathToFile;
+
+    /**
+     * @param string $pathToFile
+     */
+    public function setPathToFile(string $pathToFile): void
+    {
+        $fileExtension = \pathinfo($pathToFile, PATHINFO_EXTENSION);
+        if (!\in_array($fileExtension, self::SUPPORTED_FILE_TYPES)) {
+            throw new \InvalidArgumentException(
+                'Supported file types are: '.\json_encode(self::SUPPORTED_FILE_TYPES)
+            );
+        }
+
+        $this->pathToFile = $pathToFile;
+    }
+}

tests/IptcTest.php

@@ -0,0 +1,38 @@
+<?php
+
+declare(strict_types=1);
+
+namespace IgorBudasov\IptcManager\Tests;
+
+use IgorBudasov\IptcManager\IptcManager;
+use PHPUnit\Framework\TestCase;
+
+class IptcTest extends TestCase
+{
+    public function testThatClassCanBeInstantiated(): void
+    {
+        $manager = new IptcManager();
+
+        self::assertInstanceOf(IptcManager::class, $manager);
+    }
+
+    public function testThatPathToFileCanBeSetWhenFileTypeIsCorrect(): void
+    {
+        $pathToFile = '/tmp/test.jpg';
+
+        $manager = new IptcManager();
+
+        self::assertNull($manager->setPathToFile($pathToFile));
+    }
+
+    public function testThatExceptionIsThrownWhenFileExtensionIsNotSupported(): void
+    {
+        $this->expectException(\InvalidArgumentException::class);
+
+        $pathToFile = '/tmp/test.wrong';
+
+        $manager = new IptcManager();
+
+        $manager->setPathToFile($pathToFile);
+    }
+}