streams/tests/unit/AutonameTest.php

<?php

/**
 * this file contains tests for the autoname function
 *
 * @package test.util
 */

use PHPUnit\Framework\TestCase;

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

/**
 * TestCase for the autoname function
 *
 * @author Alexander Kampmann
 * @package test.util
 */
class AutonameTest extends TestCase
{
    /**
     *autonames should be random, even length
     */
    public function testAutonameEven()
    {
        $autoname1 = autoname(10);
        $autoname2 = autoname(10);

        $this->assertNotEquals($autoname1, $autoname2);
    }

    /**
     *autonames should be random, odd length
     */
    public function testAutonameOdd()
    {
        $autoname1 = autoname(9);
        $autoname2 = autoname(9);

        $this->assertNotEquals($autoname1, $autoname2);
    }

    /**
     * try to fail autonames
     */
    public function testAutonameNoLength()
    {
        $autoname1 = autoname(0);
        $this->assertEquals(0, strlen($autoname1));
    }

    /**
     * try to fail it with invalid input
     *
     * TODO: What's corect behaviour here? An exception?
     */
    public function testAutonameNegativeLength()
    {
        $autoname1 = autoname(-23);
        $this->assertEquals(0, strlen($autoname1));
    }

    //  public function testAutonameMaxLength() {
    //      $autoname2=autoname(PHP_INT_MAX);
    //      $this->assertEquals(PHP_INT_MAX, strlen($autoname2));
    //  }

    /**
     * test with a length, that may be too short
     * length is maximum - autoname can return something shorter.
     */
    public function testAutonameLength1()
    {
        $autoname1 = autoname(1);
        $test = ((strlen($autoname1) < 2) ? 1 : 0);
        $this->assertEquals(1, $test);

        $autoname2 = autoname(1);
        $test = ((strlen($autoname2) < 2) ? 1 : 0);
        $this->assertEquals(1, $test);

        // The following test is problematic, with only 26 possibilities
        // generating the same thing twice happens often aka
        // birthday paradox
//      $this->assertFalse($autoname1==$autoname2);
    }
}