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File: test/SnakeTest.php

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File: test/SnakeTest.php
Role: Unit test script
Content type: text/plain
Description: Unit test script
Class: PHP Snake Game
Manage and process the moves in a snake game
Author: By
Last change: Update of test/SnakeTest.php
Date: 4 days ago
Size: 2,991 bytes
 

Contents

Class file image Download
<?php
require_once './bootstrap.php';
use \
Ptx\Snake;

class
SnakeTest extends PHPUnit_Framework_TestCase
{

   
/**
     * Tests whether we do have class name Snake
     */
   
public function testSnakeClass_exits()
    {
       
$this->assertTrue(class_exists('\Ptx\Snake'));
    }

   
/**
     * Checks that init length param is working
     */
   
public function testSnakeClass_InitLength_CorrectSnake()
    {
       
$snake_obj = new Snake([
           
'init_length' => 3,
        ]);

       
$expected = [ [0,0], [1,0], [2,0], [3,0] ];
       
$this->assertEquals($expected, $snake_obj->get_positions());
    }

    public function
testReset_MoveSnakeAndReset_CorrectPosition()
    {
       
$snake_obj = new Snake();
       
$snake_obj->move_snake('FFEEFFEE');
       
$snake_obj->reset();

       
$this->assertEquals([[0,0], [1,0]], $snake_obj->get_positions());
       
$this->assertEquals(0, $snake_obj->get_steps());
    }

    public function
testMoveSnake_UnknownMove_ThrowsException()
    {
       
$snake_obj = new Snake();
       
$exception = false;
        try {
           
$snake_obj->move_snake('FFEEFFEED');
        } catch(\
Ptx\SnakeException $e) {
           
$exception = true;
        }

       
$this->assertTrue($exception);
    }


   
/**
     * @param $move - snake path
     * @param $expected - what is an expected result.
     * @dataProvider data_4_move_tests
     * @throws \Ptx\SnakeException
     */
   
public function testSnakeMove_Path_CorrectResults($move, $expected)
    {
       
$snake_obj = new Snake();
       
$snake_obj->move_snake($move);

       
$this->assertEquals($expected, $snake_obj->get_positions(), $move);
    }

   
/**
     * @param $move - snake path
     * @param $expected - what is an expected result.
     * @dataProvider data_4_survive_tests
     * @throws \Ptx\SnakeException
     */
   
public function testSnakeMove_Path_Survive($move, $expected)
    {
       
$snake_obj = new Snake();
       
$this->assertEquals($expected, $snake_obj->move_snake($move), $move);
    }

   
/**
     * Data provider
     *
     * @return array
     */
   
public function data_4_move_tests()
    {
        return [
            [
'FFF', [[3,0], [4,0]]],
            [
'FFL', [[3,0], [3,1]]],
            [
'FLL', [[2,1], [1,1]]],
            [
'FRR', [[2,-1], [1, -1]]],
            [
'FFLLRRFF', [[4,2], [5,2]]],
            [
'FE', [[1,0], [2,0], [3,0]]],
            [
'FEE', [[1,0], [2,0], [3,0], [4,0]]],
            [
'FEEL', [[2,0], [3,0], [4,0], [4,1]]],
            [
'FLERFF', [[3,2], [4,2], [5,2]]],
        ];
    }

   
/**
     * Data provider
     *
     * @return array
     */
   
public function data_4_survive_tests()
    {
        return [
            [
'FFF', -1],
            [
'FFL', -1],
            [
'FLL', -1],
            [
'FRR', -1],
            [
'FFLLRRFF', -1],
            [
'FE', -1],
            [
'FEE', -1],
            [
'FEEL', -1],
            [
'FLERFF', -1],
            [
'EEEELLLL', 7],
        ];
    }
}

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