Merge "DatabaseMssql: Don't duplicate body of makeList()"

[mediawiki.git] / tests / phpunit / includes / libs / DeferredStringifierTest.php

<?php

class DeferredStringifierTest extends PHPUnit_Framework_TestCase {

        /**
         * @covers DeferredStringifier
         * @dataProvider provideToString
         */
        public function testToString( $params, $expected ) {
                $class = new ReflectionClass( 'DeferredStringifier' );
                $ds = $class->newInstanceArgs( $params );
                $this->assertEquals( $expected, (string)$ds );
        }

        public static function provideToString() {
                return array(
                        // No args
                        array(
                                array(
                                        function() {
                                                return 'foo';
                                        }
                                ),
                                'foo'
                        ),
                        // Has args
                        array(
                                array(
                                        function( $i ) {
                                                return $i;
                                        },
                                        'bar'
                                ),
                                'bar'
                        ),
                );
        }

        /**
         * Verify that the callback is not called if
         * it is never converted to a string
         */
        public function testCallbackNotCalled() {
                $ds = new DeferredStringifier( function() {
                        throw new Exception( 'This should not be reached!' );
                } );
                // No exception was thrown
                $this->assertTrue( true );
        }
}