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52 lines
1.3 KiB
PHP
Executable File
52 lines
1.3 KiB
PHP
Executable File
<?php
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/**
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* Karaka
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*
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* PHP Version 8.1
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*
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* @package tests
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* @copyright Dennis Eichhorn
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* @license OMS License 2.0
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* @version 1.0.0
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* @link https://jingga.app
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*/
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declare(strict_types=1);
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namespace phpOMS\tests\Business\Marketing;
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use phpOMS\Business\Marketing\CustomerValue;
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/**
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* @testdox phpOMS\tests\Business\Marketing\CustomerValueTest: Customer value
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*
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* @internal
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*/
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final class CustomerValueTest extends \PHPUnit\Framework\TestCase
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{
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/**
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* @testdox The simple customer life time value is correctly calculated
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* @group framework
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*/
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public function testSimpleCLV() : void
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{
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$margin = 3000;
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$years = 10;
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$retention = $years / (1 + $years);
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self::assertEqualsWithDelta(30000, CustomerValue::getSimpleCLV($margin, $retention, 0.0), 0.1);
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}
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/**
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* @testdox The monthly recurring revenue (MRR) is correctly calculated
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* @group framework
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*/
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public function testMRR() : void
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{
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$revenues = [
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1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096,
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];
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self::assertEqualsWithDelta(77.53846, CustomerValue::getMRR($revenues, 13, 10, 1000), 0.01);
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self::assertEqualsWithDelta(630.07692307, CustomerValue::getMRR($revenues, 13, 0.0, 0.0), 0.01);
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}
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}
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