Ticket #26163: NormalizeWhitespace.php

<?php

/**
 * @group formatting
 */
class Tests_Formatting_NormalizeWhitespace extends WP_UnitTestCase {
        
        /**
         * WhitespaceTest Content DataProvider
         *
         * array ( input_txt, converted_output_txt)
         */
        public function get_input_output() {
                return array (
                        array (
                                "               ",
                                ""
                        ),
                        array (
                                "\rTEST\r",
                                "TEST"
                        ),
                        array (
                                "\r\nMY TEST CONTENT\r\n",
                                "MY TEST CONTENT"
                        ),
                        array (
                                "MY\r\nTEST\r\nCONTENT ",
                                "MY\nTEST\nCONTENT"
                        ),
                        array (
                                "\tMY\rTEST\rCONTENT ",
                                "MY\nTEST\nCONTENT"
                        ),
                        array (
                                "\tMY\t\t\tTEST\r\t\t\rCONTENT ",
                                "MY TEST\n \nCONTENT"
                        ),
                        array (
                                "\tMY TEST \t\t\t CONTENT ",
                                "MY TEST CONTENT"
                        ),
                );
        }

        /**
         * Validate the normalize_whitespace function
         * @dataProvider get_input_output
         */
        function test_normalize_whitespace( $in_str, $exp_str ) {

                $this->assertEquals($exp_str, normalize_whitespace( $in_str ) );

        }
}