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							<?php

/*
 * This file is part of the symfony package.
 *
 * (c) Fabien Potencier <fabien.potencier@symfony-project.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Tests\Components\DomCrawler;

use Symfony\Components\DomCrawler\Form;

class FormTest extends \PHPUnit_Framework_TestCase
{
  public function testConstructorThrowsExceptionIfTheNodeHasNoFormAncestor()
  {
    $dom = new \DOMDocument();
    $dom->loadHTML('
      <html>
        <input type="submit" />
        <form>
          <input type="foo" />
        </form>
        <button />
      </html>
    ');

    $nodes = $dom->getElementsByTagName('input');

    try
    {
      $form = new Form($nodes->item(0));
      $this->fail('__construct() throws a \\LogicException if the node has no form ancestor');
    }
    catch (\LogicException $e)
    {
      $this->assertTrue(true, '__construct() throws a \\LogicException if the node has no form ancestor');
    }

    try
    {
      $form = new Form($nodes->item(1));
      $this->fail('__construct() throws a \\LogicException if the input type is not submit, button, or image');
    }
    catch (\LogicException $e)
    {
      $this->assertTrue(true, '__construct() throws a \\LogicException if the input type is not submit, button, or image');
    }

    $nodes = $dom->getElementsByTagName('button');

    try
    {
      $form = new Form($nodes->item(0));
      $this->fail('__construct() throws a \\LogicException if the input type is not submit, button, or image');
    }
    catch (\LogicException $e)
    {
      $this->assertTrue(true, '__construct() throws a \\LogicException if the input type is not submit, button, or image');
    }
  }

  /**
   * @dataProvider provideInitializeValues
   */
  public function testConstructor($message, $form, $values)
  {
    $form = $this->createForm('<form>'.$form.'</form>');
    $this->assertEquals($values, array_map(function ($field) { return array(get_class($field), $field->getValue()); }, $form->getFields()), '->getDefaultValues() '.$message);
  }

  public function provideInitializeValues()
  {
    return array(
      array(
        'does not take into account input fields without a name attribute',
        '<input type="text" value="foo" />
         <input type="submit" />',
        array(),
      ),
      array(
        'does not take into account disabled input fields',
        '<input type="text" name="foo" value="foo" disabled="disabled" />
         <input type="submit" />',
        array(),
      ),
      array(
        'appends the submitted button value',
        '<input type="submit" name="bar" value="bar" />',
        array('bar' => array('Symfony\\Components\\DomCrawler\\Field\\InputFormField', 'bar')),
      ),
      array(
        'appends the submitted button value but not other submit buttons',
        '<input type="submit" name="bar" value="bar" />
         <input type="submit" name="foobar" value="foobar" />',
         array('foobar' => array('Symfony\\Components\\DomCrawler\\Field\\InputFormField', 'foobar')),
      ),
      array(
        'returns textareas',
        '<textarea name="foo">foo</textarea>
         <input type="submit" />',
         array('foo' => array('Symfony\\Components\\DomCrawler\\Field\\TextareaFormField', 'foo')),
      ),
      array(
        'returns inputs',
        '<input type="text" name="foo" value="foo" />
         <input type="submit" />',
         array('foo' => array('Symfony\\Components\\DomCrawler\\Field\\InputFormField', 'foo')),
      ),
      array(
        'returns checkboxes',
        '<input type="checkbox" name="foo" value="foo" checked="checked" />
         <input type="submit" />',
         array('foo' => array('Symfony\\Components\\DomCrawler\\Field\\ChoiceFormField', 'foo')),
      ),
      array(
        'returns not-checked checkboxes',
        '<input type="checkbox" name="foo" value="foo" />
         <input type="submit" />',
         array('foo' => array('Symfony\\Components\\DomCrawler\\Field\\ChoiceFormField', false)),
      ),
      array(
        'returns radio buttons',
        '<input type="radio" name="foo" value="foo" />
         <input type="radio" name="foo" value="bar" checked="bar" />
         <input type="submit" />',
         array('foo' => array('Symfony\\Components\\DomCrawler\\Field\\ChoiceFormField', 'bar')),
      ),
      array(
        'returns file inputs',
        '<input type="file" name="foo" />
         <input type="submit" />',
         array('foo' => array('Symfony\\Components\\DomCrawler\\Field\\FileFormField', array('name' => '', 'type' => '', 'tmp_name' => '', 'error' => 4, 'size' => 0))),
      ),
    );
  }

  public function testGetFormNode()
  {
    $dom = new \DOMDocument();
    $dom->loadHTML('<html><form><input type="submit" /></form></html>');

    $form = new Form($dom->getElementsByTagName('input')->item(0));

    $this->assertSame($dom->getElementsByTagName('form')->item(0), $form->getFormNode(), '->getFormNode() returns the form node associated with this form');
  }

  public function testGetMethod()
  {
    $form = $this->createForm('<form><input type="submit" /></form>');
    $this->assertEquals('get', $form->getMethod(), '->getMethod() returns get if no method is defined');

    $form = $this->createForm('<form method="post"><input type="submit" /></form>');
    $this->assertEquals('post', $form->getMethod(), '->getMethod() returns the method attribute value of the form');

    $form = $this->createForm('<form method="post"><input type="submit" /></form>', 'put');
    $this->assertEquals('put', $form->getMethod(), '->getMethod() returns the method defined in the constructor if provided');
  }

  public function testGetSetValue()
  {
    $form = $this->createForm('<form><input type="text" name="foo" value="foo" /><input type="submit" /></form>');

    $this->assertEquals('foo', $form->getValue('foo'), '->getValue() returns the value of a form field');

    $ret = $form->setValue('foo', 'bar');

    $this->assertEquals($form, $ret, '->setValue() implements a fluent interface');
    $this->assertEquals('bar', $form->getValue('foo'), '->setValue() changes the value of a form field');

    try
    {
      $form->setValue('foobar', 'bar');
      $this->pass('->setValue() throws an \InvalidArgumentException exception if the field does not exist');
    }
    catch (\InvalidArgumentException $e)
    {
      $this->assertTrue(true, '->setValue() throws an \InvalidArgumentException exception if the field does not exist');
    }

    try
    {
      $form->getValue('foobar');
      $this->pass('->getValue() throws an \InvalidArgumentException exception if the field does not exist');
    }
    catch (\InvalidArgumentException $e)
    {
      $this->assertTrue(true, '->getValue() throws an \InvalidArgumentException exception if the field does not exist');
    }
  }

  public function testGetValues()
  {
    $form = $this->createForm('<form><input type="text" name="foo[bar]" value="foo" /><input type="text" name="bar" value="bar" /><input type="submit" /></form>');
    $this->assertEquals(array('foo[bar]' => 'foo', 'bar' => 'bar'), $form->getValues(), '->getValues() returns all form field values');

    $form = $this->createForm('<form><input type="checkbox" name="foo" value="foo" /><input type="text" name="bar" value="bar" /><input type="submit" /></form>');
    $this->assertEquals(array('bar' => 'bar'), $form->getValues(), '->getValues() does not include not-checked checkboxes');

    $form = $this->createForm('<form><input type="file" name="foo" value="foo" /><input type="text" name="bar" value="bar" /><input type="submit" /></form>');
    $this->assertEquals(array('bar' => 'bar'), $form->getValues(), '->getValues() does not include file input fields');
  }

  public function testSetValues()
  {
    $form = $this->createForm('<form><input type="checkbox" name="foo" value="foo" checked="checked" /><input type="text" name="bar" value="bar" /><input type="submit" /></form>');
    $form->setValues(array('foo' => false, 'bar' => 'foo'));
    $this->assertEquals(array('bar' => 'foo'), $form->getValues(), '->setValues() sets the values of fields');
  }

  public function testGetPhpValues()
  {
    $form = $this->createForm('<form><input type="text" name="foo[bar]" value="foo" /><input type="text" name="bar" value="bar" /><input type="submit" /></form>');
    $this->assertEquals(array('foo' => array('bar' => 'foo'), 'bar' => 'bar'), $form->getPhpValues(), '->getPhpValues() converts keys with [] to arrays');
  }

  public function testGetFiles()
  {
    $form = $this->createForm('<form><input type="file" name="foo[bar]" /><input type="text" name="bar" value="bar" /><input type="submit" /></form>');
    $this->assertEquals(array(), $form->getFiles(), '->getFiles() returns an empty array if method is get');

    $form = $this->createForm('<form method="post"><input type="file" name="foo[bar]" /><input type="text" name="bar" value="bar" /><input type="submit" /></form>');
    $this->assertEquals(array('foo[bar]' => array('name' => '', 'type' => '', 'tmp_name' => '', 'error' => 4, 'size' => 0)), $form->getFiles(), '->getFiles() only returns file fields');
  }

  public function testGetPhpFiles()
  {
    $form = $this->createForm('<form method="post"><input type="file" name="foo[bar]" /><input type="text" name="bar" value="bar" /><input type="submit" /></form>');
    $this->assertEquals(array('foo' => array('bar' => array('name' => '', 'type' => '', 'tmp_name' => '', 'error' => 4, 'size' => 0))), $form->getPhpFiles(), '->getPhpFiles() converts keys with [] to arrays');
  }

  /**
   * @dataProvider provideGetUriValues
   */
  public function testGetUri($message, $form, $values, $uri)
  {
    $form = $this->createForm($form);
    $form->setValues($values);

    $this->assertEquals($uri, $form->getUri(), '->getUri() '.$message);
  }

  public function testGetUriAbsolute()
  {
    $form = $this->createForm('<form action="foo"><input type="submit" /></form>', null, 'http://localhost', '/foo/');
    $this->assertEquals('http://localhost/foo/foo', $form->getUri(true), '->getUri() returns absolute URIs');

    $form = $this->createForm('<form action="/foo"><input type="submit" /></form>', null, 'http://localhost', '/foo/');
    $this->assertEquals('http://localhost/foo', $form->getUri(true), '->getUri() returns absolute URIs');

    $form = $this->createForm('<form action="/foo"><input type="submit" /></form>');
    $this->assertEquals('/foo', $form->getUri(true), '->getUri() returns absolute URIs only if the host has been defined in the constructor');

    $form = $this->createForm('<form action="foo"><input type="submit" /></form>');
    $this->assertEquals('/foo', $form->getUri(true), '->getUri() returns absolute URIs only if the host has been defined in the constructor');
  }

  public function provideGetUriValues()
  {
    return array(
      array(
        'returns the URI of the form',
        '<form action="/foo"><input type="submit" /></form>',
        array(),
        '/foo'
      ),
      array(
        'appends the form values if the method is get',
        '<form action="/foo"><input type="text" name="foo" value="foo" /><input type="submit" /></form>',
        array(),
        '/foo?foo=foo'
      ),
      array(
        'appends the form values and merges the submitted values',
        '<form action="/foo"><input type="text" name="foo" value="foo" /><input type="submit" /></form>',
        array('foo' => 'bar'),
        '/foo?foo=bar'
      ),
      array(
        'does not append values if the method is post',
        '<form action="/foo" method="post"><input type="text" name="foo" value="foo" /><input type="submit" /></form>',
        array(),
        '/foo'
      ),
      array(
        'appends the form values to an existing query string',
        '<form action="/foo?bar=bar"><input type="text" name="foo" value="foo" /><input type="submit" /></form>',
        array(),
        '/foo?bar=bar&foo=foo'
      ),
      array(
        'returns an empty URI if the action is empty',
        '<form><input type="submit" /></form>',
        array(),
        '', 
      ),
      array(
        'appends the form values even if the action is empty',
        '<form><input type="text" name="foo" value="foo" /><input type="submit" /></form>',
        array(),
        '/?foo=foo',
      ),
    );
  }

  public function testHasField()
  {
    $form = $this->createForm('<form method="post"><input type="text" name="bar" value="bar" /><input type="submit" /></form>');

    $this->assertFalse($form->hasField('foo'), '->hasField() returns false if a field is not in the form');
    $this->assertTrue($form->hasField('bar'), '->hasField() returns true if a field is in the form');
  }

  public function testGetField()
  {
    $form = $this->createForm('<form method="post"><input type="text" name="bar" value="bar" /><input type="submit" /></form>');

    $this->assertEquals('Symfony\\Components\\DomCrawler\\Field\\InputFormField', get_class($form->getField('bar')), '->getField() returns the field object associated with the given name');

    try
    {
      $form->getField('foo');
      $this->fail('->getField() throws an \InvalidArgumentException if the field does not exist');
    }
    catch (\InvalidArgumentException $e)
    {
      $this->assertTrue(true, '->getField() throws an \InvalidArgumentException if the field does not exist');
    }
  }

  public function testGetFields()
  {
    $form = $this->createForm('<form method="post"><input type="text" name="bar" value="bar" /><input type="submit" /></form>');

    $fields = $form->getFields();
    $this->assertEquals(1, count($fields), '->getFields() return an array of form field objects');
    $this->assertEquals('Symfony\\Components\\DomCrawler\\Field\\InputFormField', get_class($fields['bar']), '->getFields() return an array of form field objects');
  }

  protected function createForm($form, $method = null, $host = null, $path = '/')
  {
    $dom = new \DOMDocument();
    $dom->loadHTML('<html>'.$form.'</html>');

    $nodes = $dom->getElementsByTagName('input');

    return new Form($nodes->item($nodes->length - 1), $method, $host, $path);
  }
}