View GitHub Repository loan-amount-calculator

Schedule Inspection
Subscribe
Passed
Branch — master (709c4a)
by Kauri
02:59
created

testGetInterestAmount()   A

↳ Parent: InterestAmountCalculatorTest

Complexity

Conditions 1
Paths 1

Size

Total Lines 8
Code Lines 5

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
dl 0
loc 8
rs 9.4285
c 0
b 0
f 0
cc 1
eloc 5
nc 1
nop 4
1 
<?php
2 

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    3
                

                                    
                                                    
                
                
                
namespace Kauri\Loan\Test;

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    4
                

                                    
                                                    
                
                
                

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    5
                

                                    
                                                    
                
                
                

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    6
                

                                    
                                                    
                
                
                
use Kauri\Loan\InterestAmountCalculator;

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    7
                

                                    
                                                    
                
                
                
use PHPUnit\Framework\TestCase;

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    8
                

                                    
                                                    
                
                
                

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    9
                

                                    
                                                    
                
                
                

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    10
                

                                    
                                                    
                
                
                
class InterestAmountCalculatorTest extends TestCase

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    11
                

                                    
                                                    
                
                
                
{

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    12
                

                                    
                                                    
                
                
                
    /**

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    13
                

                                    
                                                    
                
                
                
     * @dataProvider loadData

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    14
                

                                    
                                                    
                
                
                
     * @param $presentValue

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    15
                

                                    
                                                    
                
                
                
     * @param $currentPeriod

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    16
                

                                    
                                                    
                
                
                
     * @param $yearlyInterestRate

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    17
                

                                    
                                                    
                
                
                
     * @param $expectedInterest

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
                    18
                

                                    
                                                    
                
                
                
     */

            


            
                                                                        
                            
            
                                    
            
            

                
                    19
                

                                    
                                                    
                
                
                
    public function testGetInterestAmount($presentValue, $currentPeriod, $yearlyInterestRate, $expectedInterest)

            


            
                                                                        
                            
            
                                    
            
            

                
                    20
                

                                    
                                                    
                
                
                
    {

            


            
                                                                        
                            
            
                                    
            
            

                
                    21
                

                                    
                                                    
                
                
                
        $ratePerPeriod = $yearlyInterestRate / 360 * $currentPeriod;

            


            
                                                                        
                            
            
                                    
            
            

                
                    22
                

                                    
                                                    
                
                
                

            


            
                                                                        
                            
            
                                    
            
            

                
                    23
                

                                    
                                                    
                
                
                
        $calculator = new InterestAmountCalculator();

            


            
                                                                        
                            
            
                                    
            
            

                
                    24
                

                                    
                                                    
                
                
                
        $interestAmount = $calculator->getInterestAmount($presentValue, $ratePerPeriod);

            


            
                                                                        
                            
            
                                    
            
            

                
                    25
                

                                    
                                                    
                
                
                
        $this->assertEquals($expectedInterest, $interestAmount);

            


            
                                                                        
                            
            
                                    
            
            

                
                    26
                

                                    
                                                    
                
                
                
    }

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    27
                

                                    
                                                    
                
                
                

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    28
                

                                    
                                                    
                
                
                
    public function loadData()

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    29
                

                                    
                                                    
                
                
                
    {

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    30
                

                                    
                                                    
                
                
                
        return [

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    31
                

                                    
                                                    
                
                
                
            // Regular annuity

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    32
                

                                    
                                                    
                
                
                
            [100, 30, 360, 30],

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    33
                

                                    
                                                    
                
                
                
            [100, 30, 180, 15],

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    34
                

                                    
                                                    
                
                
                
            // Exact

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    35
                

                                    
                                                    
                
                
                
            [100, 10, 360, 10],

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    36
                

                                    
                                                    
                
                
                
            [100, 29, 180, 14.5]

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    37
                

                                    
                                                    
                
                
                
        ];

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    38
                

                                    
                                                    
                
                
                
    }

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    39
                

                                    
                                                    
                
                
                

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
                    40
                

                                    
                                                    
                
                
                
}

            


            
                                                        
            
                                    
            
            

                
                    41