<?php

/**
 * this test tests the contains_attribute function
 *
 * @package test.util
 */

use PHPUnit\Framework\TestCase;

/** required, it is the file under test */
require_once('include/text.php');

/**
 * TestCase for the contains_attribute function
 *
 * @author Alexander Kampmann
 * @package test.util
 */
class ContainsAttributeTest extends TestCase
{
    /**
     * test attribute contains
     */
    public function testAttributeContains1()
    {
        $testAttr = "class1 notclass2 class3";
        $this->assertTrue(attribute_contains($testAttr, "class3"));
        $this->assertFalse(attribute_contains($testAttr, "class2"));
    }

    /**
     * test attribute contains
     */
    public function testAttributeContains2()
    {
        $testAttr = "class1 not-class2 class3";
        $this->assertTrue(attribute_contains($testAttr, "class3"));
        $this->assertFalse(attribute_contains($testAttr, "class2"));
    }

    /**
     * test with empty input
     */
    public function testAttributeContainsEmpty()
    {
        $testAttr = "";
        $this->assertFalse(attribute_contains($testAttr, "class2"));
    }

    /**
     * test input with special chars
     */
    public function testAttributeContainsSpecialChars()
    {
        $testAttr = "--... %\$ä() /(=?}";
        $this->assertFalse(attribute_contains($testAttr, "class2"));
    }
}