<?php
/*
* This file is part of PHPUnit.
*
* (c) Sebastian Bergmann <sebastian@phpunit.de>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/

namespace PHPUnit\Util;

use PHPUnit\Framework\Exception;
use PHPUnit\Framework\TestCase;

class XmlTest extends TestCase
{
/**
* @dataProvider charProvider
*/
public function testPrepareString($char)
{
$e = null;

$escapedString = Xml::prepareString($char);
$xml = "<?xml version='1.0' encoding='UTF-8' ?><tag>$escapedString</tag>";
$dom = new \DOMDocument('1.0', 'UTF-8');

try {
$dom->loadXML($xml);
} catch (Exception $e) {
}

$this->assertNull($e, \sprintf(
'PHPUnit_Util_XML::prepareString("\x%02x") should not crash DomDocument',
\ord($char)
));
}

public function charProvider()
{
$data = [];

for ($i = 0; $i < 256; $i++) {
$data[] = [\chr($i)];
}

return $data;
}

public function testLoadEmptyString()
{
$this->expectException(Exception::class);
$this->expectExceptionMessage('Could not load XML from empty string');

Xml::load('');
}

public function testLoadArray()
{
$this->expectException(Exception::class);
$this->expectExceptionMessage('Could not load XML from array');

Xml::load([1, 2, 3]);
}

public function testLoadBoolean()
{
$this->expectException(Exception::class);
$this->expectExceptionMessage('Could not load XML from boolean');

Xml::load(false);
}

public function testNestedXmlToVariable()
{
$xml = '<array><element key="a"><array><element key="b"><string>foo</string></element></array></element><element key="c"><string>bar</string></element></array>';
$dom = new \DOMDocument;
$dom->loadXML($xml);

$expected = [
'a' => [
'b' => 'foo',
],
'c' => 'bar',
];

$actual = Xml::xmlToVariable($dom->documentElement);

$this->assertSame($expected, $actual);
}

public function testXmlToVariableCanHandleMultipleOfTheSameArgumentType()
{
$xml = '<object class="SampleClass"><arguments><string>a</string><string>b</string><string>c</string></arguments></object>';
$dom = new \DOMDocument();
$dom->loadXML($xml);

$expected = ['a' => 'a', 'b' => 'b', 'c' => 'c'];

$actual = Xml::xmlToVariable($dom->documentElement);

$this->assertSame($expected, (array) $actual);
}

public function testXmlToVariableCanConstructObjectsWithConstructorArgumentsRecursively()
{
$xml = '<object class="Exception"><arguments><string>one</string><integer>0</integer><object class="Exception"><arguments><string>two</string></arguments></object></arguments></object>';
$dom = new \DOMDocument();
$dom->loadXML($xml);

$actual = Xml::xmlToVariable($dom->documentElement);

$this->assertEquals('one', $actual->getMessage());
$this->assertEquals('two', $actual->getPrevious()->getMessage());
}
}