Merge commit 'f6d65'

# Conflicts:
#	skins/ArchLinux/ArchLinux.php

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diff --git a/tests/phpunit/languages/classes/LanguageTrTest.php b/tests/phpunit/languages/classes/LanguageTrTest.php
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+++ b/tests/phpunit/languages/classes/LanguageTrTest.php
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+<?php
+/**
+ * @author Antoine Musso
+ * @copyright Copyright © 2011, Antoine Musso
+ * @file
+ */
+
+/** Tests for MediaWiki languages/LanguageTr.php */
+class LanguageTrTest extends LanguageClassesTestCase {
+
+	/**
+	 * See @bug 28040
+	 * Credits to irc://irc.freenode.net/wikipedia-tr users:
+	 *  - berm
+	 *  - []LuCkY[]
+	 *  - Emperyan
+	 * @see http://en.wikipedia.org/wiki/Dotted_and_dotless_I
+	 * @dataProvider provideDottedAndDotlessI
+	 * @covers Language::ucfirst
+	 * @covers Language::lcfirst
+	 */
+	public function testDottedAndDotlessI( $func, $input, $inputCase, $expected ) {
+		if ( $func == 'ucfirst' ) {
+			$res = $this->getLang()->ucfirst( $input );
+		} elseif ( $func == 'lcfirst' ) {
+			$res = $this->getLang()->lcfirst( $input );
+		} else {
+			throw new MWException( __METHOD__ . " given an invalid function name '$func'" );
+		}
+
+		$msg = "Converting $inputCase case '$input' with $func should give '$expected'";
+
+		$this->assertEquals( $expected, $res, $msg );
+	}
+
+	public static function provideDottedAndDotlessI() {
+		return array(
+			# function, input, input case, expected
+			# Case changed:
+			array( 'ucfirst', 'ı', 'lower', 'I' ),
+			array( 'ucfirst', 'i', 'lower', 'İ' ),
+			array( 'lcfirst', 'I', 'upper', 'ı' ),
+			array( 'lcfirst', 'İ', 'upper', 'i' ),
+
+			# Already using the correct case
+			array( 'ucfirst', 'I', 'upper', 'I' ),
+			array( 'ucfirst', 'İ', 'upper', 'İ' ),
+			array( 'lcfirst', 'ı', 'lower', 'ı' ),
+			array( 'lcfirst', 'i', 'lower', 'i' ),
+
+			# A real example taken from bug 28040 using
+			# http://tr.wikipedia.org/wiki/%C4%B0Phone
+			array( 'lcfirst', 'iPhone', 'lower', 'iPhone' ),
+
+			# next case is valid in Turkish but are different words if we
+			# consider IPhone is English!
+			array( 'lcfirst', 'IPhone', 'upper', 'ıPhone' ),
+
+		);
+	}
+}