Add test to verify plugin file with readme.txt

Author: tijmenbruggeman

test/unit/TinyVersionTest.php

@@ -0,0 +1,65 @@
+<?php
+
+require_once dirname(__FILE__) . '/TinyTestCase.php';
+
+/**
+ * Tests for version consistency across plugin files.
+ */
+class TinyVersionTest extends Tiny_TestCase
+{
+
+	/**
+	 * Plugin root directory path.
+	 * @var string
+	 */
+	private $plugin_root;
+
+	/**
+	 * Set up test environment.
+	 */
+	public function set_up()
+	{
+		parent::set_up();
+		$this->plugin_root = dirname(dirname(__DIR__));
+	}
+
+	/**
+	 * Test that the version in readme.txt matches the version in tiny-compress-images.php.
+	 */
+	public function test_readme_version_matches_plugin_version()
+	{
+		$plugin_file = $this->plugin_root . '/tiny-compress-images.php';
+		$readme_file = $this->plugin_root . '/readme.txt';
+
+		$plugin_version = $this->get_version($plugin_file, '/Version:\s*(.+)/');
+		$readme_version = $this->get_version($readme_file, '/Stable tag:\s*(.+)/');
+
+		$this->assertEquals(
+			$readme_version,
+			$plugin_version,
+			sprintf(
+				'readme.txt has %s but tiny-compress-images.php has version %s',
+				$readme_version,
+				$plugin_version
+			)
+		);
+	}
+
+
+	/**
+	 * Extract version number from a plugin file.
+	 *
+	 * @param string $file_path Path to the file
+	 * @return string|null The version number or null if not found.
+	 */
+	private function get_version($file_path, $regex)
+	{
+		$content = file_get_contents($file_path);
+
+		if (preg_match($regex, $content, $matches)) {
+			return trim($matches[1]);
+		}
+
+		return null;
+	}
+}