LanguageTrTest.php

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<?php
class LanguageTrTest extends LanguageClassesTestCase {

        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 );
        }

        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' ),

                );
        }

}