1 files changed, 74 insertions, 0 deletions
diff --git a/tests/phpunit/languages/LanguageClassesTestCase.php b/tests/phpunit/languages/LanguageClassesTestCase.php
new file mode 100644
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+++ b/tests/phpunit/languages/LanguageClassesTestCase.php
@@ -0,0 +1,74 @@
+<?php
+/**
+ * Helping class to run tests using a clean language instance.
+ *
+ * This is intended for the MediaWiki language class tests under
+ * tests/phpunit/languages.
+ *
+ * Before each tests, a new language object is build which you
+ * can retrieve in your test using the $this->getLang() method:
+ *
+ * @par Using the crafted language object:
+ * @code
+ * function testHasLanguageObject() {
+ *   $langObject = $this->getLang();
+ *   $this->assertInstanceOf( 'LanguageFoo',
+ *     $langObject
+ *   );
+ * }
+ * @endcode
+ */
+abstract class LanguageClassesTestCase extends MediaWikiTestCase {
+	/**
+	 * Internal language object
+	 *
+	 * A new object is created before each tests thanks to PHPUnit
+	 * setUp() method, it is deleted after each test too. To get
+	 * this object you simply use the getLang method.
+	 *
+	 * You must have setup a language code first. See $LanguageClassCode
+	 * @code
+	 *  function testWeAreTheChampions() {
+	 *    $this->getLang();  # language object
+	 *  }
+	 * @endcode
+	 */
+	private $languageObject;
+
+	/**
+	 * @return Language
+	 */
+	protected function getLang() {
+		return $this->languageObject;
+	}
+
+	/**
+	 * Create a new language object before each test.
+	 */
+	protected function setUp() {
+		parent::setUp();
+		$found = preg_match( '/Language(.+)Test/', get_called_class(), $m );
+		if ( $found ) {
+			# Normalize language code since classes uses underscores
+			$m[1] = strtolower( str_replace( '_', '-', $m[1] ) );
+		} else {
+			# Fallback to english language
+			$m[1] = 'en';
+			wfDebug(
+				__METHOD__ . " could not extract a language name "
+					. "out of " . get_called_class() . " failling back to 'en'\n"
+			);
+		}
+		// @todo validate $m[1] which should be a valid language code
+		$this->languageObject = Language::factory( $m[1] );
+	}
+
+	/**
+	 * Delete the internal language object so each test start
+	 * out with a fresh language instance.
+	 */
+	protected function tearDown() {
+		unset( $this->languageObject );
+		parent::tearDown();
+	}
+}