<?php

namespace Guzzle\Tests\Message;

use Guzzle\Common\Collection;
use Guzzle\Tests\Http\Message\HeaderComparison;

class HeaderComparisonTest extends \Guzzle\Tests\GuzzleTestCase {

    public function filterProvider() {
        return array(
            // Headers match
            array(array(
                    'Content-Length' => 'Foo'
                ), array(
                    'Content-Length' => 'Foo'
                ), false),
            // Missing header
            array(array(
                    'X-Foo' => 'Bar'
                ), array(), array(
                    '- X-Foo' => 'Bar'
                )),
            // Extra headers is present
            array(array(
                    'X-Foo' => 'Bar'
                ), array(
                    'X-Foo' => 'Bar',
                    'X-Baz' => 'Jar'
                ), array(
                    '+ X-Baz' => 'Jar'
                )),
            // Header is present but must be absent
            array(array(
                    '!X-Foo' => '*'
                ), array(
                    'X-Foo' => 'Bar'
                ), array(
                    '++ X-Foo' => 'Bar'
                )),
            // Different values
            array(array(
                    'X-Foo' => 'Bar'
                ), array(
                    'X-Foo' => 'Baz'
                ), array(
                    'X-Foo' => 'Baz != Bar'
                )),
            // Wildcard search passes
            array(array(
                    'X-Foo' => '*'
                ), array(
                    'X-Foo' => 'Bar'
                ), false),
            // Wildcard search fails
            array(array(
                    'X-Foo' => '*'
                ), array(), array(
                    '- X-Foo' => '*'
                )),
            // Ignore extra header if present
            array(array(
                    'X-Foo' => '*',
                    '_X-Bar' => '*',
                ), array(
                    'X-Foo' => 'Baz',
                    'X-Bar' => 'Jar'
                ), false),
            // Ignore extra header if present and is not
            array(array(
                    'X-Foo' => '*',
                    '_X-Bar' => '*',
                ), array(
                    'X-Foo' => 'Baz'
                ), false),
            // Case insensitive
            array(array(
                    'X-Foo' => '*',
                    '_X-Bar' => '*',
                ), array(
                    'x-foo' => 'Baz',
                    'x-BAR' => 'baz'
                ), false),
            // Case insensitive with collection
            array(array(
                    'X-Foo' => '*',
                    '_X-Bar' => '*',
                ), new Collection(array(
                    'x-foo' => 'Baz',
                    'x-BAR' => 'baz'
                        )), false),
        );
    }

    /**
     * @dataProvider filterProvider
     */
    public function testComparesHeaders($filters, $headers, $result) {
        $compare = new HeaderComparison();
        $this->assertEquals($result, $compare->compare($filters, $headers));
    }

}
