Added test files

Author: indy2kro

.gitattributes

@@ -1,2 +1,3 @@
 .github/                export-ignore
+fixtures/               export-ignore
 tests/                  export-ignore

README.md

@@ -0,0 +1 @@
+PHP ISO file Library. A library for reading ISO files using PHP.

fixtures/invalid.iso

@@ -0,0 +1 @@
+invalid-file

fixtures/test.iso

@@ -0,0 +1,9 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PhpIso;
+
+class Exception extends \Exception
+{
+}

src/Exception.php

@@ -4,6 +4,42 @@
 
 namespace PhpIso;
 
+use PhpIso\Exception;
+
 class IsoFile
 {
+    /**
+     * @var resource
+     */
+    protected mixed $fileHandle;
+
+    public function __construct(protected string $isoFilePath)
+    {
+        $this->openFile();
+    }
+
+    public function __destruct()
+    {
+        $this->closeFile();
+    }
+
+    protected function openFile(): void
+    {
+        if (file_exists($this->isoFilePath) === false) {
+            throw new Exception('File does not exist: ' . $this->isoFilePath);
+        }
+
+        $fileHandle = fopen($this->isoFilePath, 'rb');
+
+        if ($fileHandle === false) {
+            throw new Exception('Cannot open file for reading: ' . $this->isoFilePath);
+        }
+
+        $this->fileHandle = $fileHandle;
+    }
+
+    protected function closeFile(): void
+    {
+        fclose($this->fileHandle);
+    }
 }

src/IsoFile.php

@@ -6,12 +6,30 @@
 
 use PHPUnit\Framework\TestCase;
 use PhpIso\IsoFile;
+use PhpIso\Exception;
 
 class IsoFileTest extends TestCase
 {
-    public function testConstructor(): void
+    public function testConstructorFileDoesNotExist(): void
     {
-        $isoFile = new IsoFile();
+        $testFile = dirname(__FILE__, 2) . '/fixtures/does-not-exist.iso';
+
+        $this->expectException(Exception::class);
+        new IsoFile($testFile);
+    }
+
+//    public function testConstructorInvalidFile(): void
+//    {
+//        $testFile = dirname(__FILE__, 2) . '/fixtures/invalid.iso';
+//
+//        $this->expectException(Exception::class);
+//        new IsoFile($testFile);
+//    }
+
+    public function testConstructorExistingFile(): void
+    {
+        $testFile = dirname(__FILE__, 2) . '/fixtures/test.iso';
+        $isoFile = new IsoFile($testFile);
         $this->assertInstanceOf(IsoFile::class, $isoFile);
     }
 }