Config can now parse .ini files

src/Config.php

@@ -3,4 +3,50 @@ namespace Szurubooru;
 
 final class Config extends \ArrayObject
 {
+	public function __construct(array $configPaths = [])
+	{
+		parent::setFlags(parent::ARRAY_AS_PROPS | parent::STD_PROP_LIST);
+
+		foreach ($configPaths as $configPath)
+		{
+			if (file_exists($configPath))
+				$this->loadFromIni($configPath);
+		}
+	}
+
+	public function offsetGet($index)
+	{
+		if (!parent::offsetExists($index))
+			return null;
+		return parent::offsetGet($index);
+	}
+
+	public function loadFromIni($configPath)
+	{
+		$array = parse_ini_file($configPath, true, INI_SCANNER_RAW);
+
+		foreach ($array as $key => $value)
+		{
+			if (!is_array($value))
+			{
+				$this->$key = $value;
+			}
+			else
+			{
+				$section = $key;
+				$ptr = $this;
+
+				foreach (explode('.', $section) as $subSection)
+				{
+					if (!isset($ptr->$subSection))
+						$ptr->$subSection = new self();
+
+					$ptr = $ptr->$subSection;
+				}
+
+				foreach ($value as $sectionKey => $sectionValue)
+					$ptr->$sectionKey = $sectionValue;
+			}
+		}
+	}
 }

tests/ConfigTest.php

@@ -0,0 +1,85 @@
+<?php
+namespace Szurubooru\Tests;
+
+final class ConfigTest extends \PHPUnit_Framework_TestCase
+{
+	private static $testFileName1;
+	private static $testFileName2;
+
+	public function setUp()
+	{
+		self::$testFileName1 = sys_get_temp_dir() . DIRECTORY_SEPARATOR . 'test-config1.ini';
+		self::$testFileName2 = sys_get_temp_dir() . DIRECTORY_SEPARATOR . 'test-config2.ini';
+	}
+
+	public function testReadingNonSections()
+	{
+		file_put_contents(self::$testFileName1, 'test=value');
+		$config = new \Szurubooru\Config([self::$testFileName1]);
+		$this->assertEquals('value', $config->test);
+	}
+
+	public function testReadingUnnestedSections()
+	{
+		file_put_contents(self::$testFileName1, '[test]' . PHP_EOL . 'key=value');
+		$config = new \Szurubooru\Config([self::$testFileName1]);
+		$this->assertEquals('value', $config->test->key);
+	}
+
+	public function testReadingNestedSections()
+	{
+		file_put_contents(self::$testFileName1, '[test.subtest]' . PHP_EOL . 'key=value');
+		$config = new \Szurubooru\Config([self::$testFileName1]);
+		$this->assertEquals('value', $config->test->subtest->key);
+	}
+
+	public function testReadingMultipleNestedSections()
+	{
+		file_put_contents(
+			self::$testFileName1,
+			'[test.subtest]' . PHP_EOL . 'key=value' . PHP_EOL .
+				'[test.subtest.deeptest]' . PHP_EOL . 'key=zombie');
+		$config = new \Szurubooru\Config([self::$testFileName1]);
+		$this->assertEquals('value', $config->test->subtest->key);
+		$this->assertEquals('zombie', $config->test->subtest->deeptest->key);
+	}
+
+	public function testReadingNonExistentFiles()
+	{
+		$config = new \Szurubooru\Config([self::$testFileName1]);
+		$this->assertEquals(0, count((array) $config));
+	}
+
+	public function testMultipleFiles()
+	{
+		file_put_contents(self::$testFileName1, 'test=trash');
+		file_put_contents(self::$testFileName2, 'test=overridden');
+		$config = new \Szurubooru\Config([self::$testFileName1, self::$testFileName2]);
+		$this->assertEquals('overridden', $config->test);
+	}
+
+	public function testReadingUnexistingProperties()
+	{
+		file_put_contents(self::$testFileName1, 'meh=value');
+		$config = new \Szurubooru\Config([self::$testFileName1]);
+		$this->assertNull($config->unexistingSection);
+	}
+
+	public function testOverwritingValues()
+	{
+		file_put_contents(self::$testFileName1, 'meh=value');
+		$config = new \Szurubooru\Config([self::$testFileName1]);
+		$config->newKey = 'fast';
+		$this->assertEquals('fast', $config->newKey);
+	}
+
+	protected function tearDown()
+	{
+		foreach ([self::$testFileName1, self::$testFileName2] as $temporaryFileName)
+		{
+			if (file_exists($temporaryFileName))
+				unlink($temporaryFileName);
+		}
+	}
+
+}