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<?php |
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namespace Nyholm\EffectiveInterest\Test; |
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use Nyholm\EffectiveInterest\Calculator; |
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use PHPUnit\Framework\TestCase; |
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class CalculatorSpecifiedPaymentsTest extends TestCase |
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{ |
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public function testReadmeExample() |
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{ |
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$principal = 100000; |
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$payment = 2400; |
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$guess = 0.03; |
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$startDate = '2017-04-30'; |
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$calculator = new Calculator(); |
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$payments = [ |
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'2017-04-30' => $payment + 400, |
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'2017-05-31' => $payment, |
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'2017-06-30' => $payment, |
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'2017-07-31' => $payment, |
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'2017-08-31' => $payment, |
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'2017-09-30' => $payment, |
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'2017-10-31' => $payment, |
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'2017-11-30' => $payment, |
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'2017-12-31' => $payment, |
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'2018-01-31' => $payment, |
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'2018-02-28' => $payment, |
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'2018-03-31' => $payment, |
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'2018-04-30' => $payment, |
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'2018-05-31' => $payment, |
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'2018-06-30' => $payment, |
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'2018-07-31' => $payment, |
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'2018-08-31' => $payment, |
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'2018-09-30' => $payment, |
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'2018-10-31' => $payment, |
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'2018-11-30' => $payment, |
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'2018-12-31' => $payment, |
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'2019-01-31' => $payment, |
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'2019-02-28' => $payment, |
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'2019-03-31' => $payment, |
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'2019-04-30' => $payment, |
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'2019-05-31' => $payment, |
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'2019-06-30' => $payment, |
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'2019-07-31' => $payment, |
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'2019-08-31' => $payment, |
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'2019-09-30' => $payment, |
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'2019-10-31' => $payment, |
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'2019-11-30' => $payment, |
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'2019-12-31' => $payment, |
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'2020-01-31' => $payment, |
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'2020-02-28' => $payment, |
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'2020-03-31' => 31200, |
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]; |
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$interest = $calculator->withSpecifiedPayments($principal, $startDate, $payments, $guess); |
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$this->assertEquals(0.084870, $interest, 'Failed to calculate effective interest with specified payments.', 0.0001); |
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} |
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/** |
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* @dataProvider generator |
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*/ |
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public function testWithSpecifiedPayments(float $correctValue, int $principal, string $startDate, array $payments, float $guess) |
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{ |
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$calculator = new Calculator(); |
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$interest = $calculator->withSpecifiedPayments($principal, $startDate, $payments, $guess); |
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$this->assertEquals($correctValue, $interest, 'Failed to calculate effective interest with specified payments.', 0.0001); |
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} |
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public function generator() |
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{ |
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return [ |
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[0.0233, 336000, '2017-01-30', $this->payments0(), 0.02], |
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[0.0805, 171920, '2017-01-30', $this->payments1(), 0.07], |
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[0.1045, 52800, '2017-01-30', $this->payments2(), 0.09], |
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[0.0549, 115000, '2017-01-30', $this->payments3(), 0.04], |
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]; |
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} |
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/** |
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* |
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* @return array |
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*/ |
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View Code Duplication |
private function payments0(): array |
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{ |
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return [ |
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'17-02-28' => 4607, |
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'17-03-31' => 4012, |
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'17-04-30' => 4012, |
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'17-05-31' => 4012, |
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'17-06-30' => 4012, |
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'17-07-31' => 4012, |
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'17-08-31' => 4012, |
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'17-09-30' => 4012, |
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'17-10-31' => 4012, |
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'17-11-30' => 4012, |
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'17-12-31' => 4012, |
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'18-01-31' => 4012, |
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'18-02-28' => 4012, |
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'18-03-31' => 4012, |
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'18-04-30' => 4012, |
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'18-05-31' => 4012, |
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'18-06-30' => 4012, |
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'18-07-31' => 4012, |
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'18-08-31' => 4012, |
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'18-09-30' => 4012, |
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'18-10-31' => 4012, |
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'18-11-30' => 4012, |
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'18-12-31' => 4012, |
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'19-01-31' => 4012, |
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'19-02-28' => 4012, |
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'19-03-31' => 4012, |
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'19-04-30' => 4012, |
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'19-05-31' => 4012, |
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'19-06-30' => 4012, |
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'19-07-31' => 4012, |
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'19-08-31' => 4012, |
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'19-09-30' => 4012, |
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'19-10-31' => 4012, |
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'19-11-30' => 4012, |
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'19-12-31' => 4012, |
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'20-01-31' => 214012, |
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]; |
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}/** |
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* |
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* @return array |
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*/ |
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private function payments1(): array |
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{ |
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return [ |
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'17-02-28' => 4050, |
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'17-03-31' => 3455, |
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'17-04-30' => 3455, |
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'17-05-31' => 3455, |
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'17-06-30' => 3455, |
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'17-07-31' => 3455, |
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'17-08-31' => 3455, |
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'17-09-30' => 3455, |
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'17-10-31' => 3455, |
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'17-11-30' => 3455, |
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'17-12-31' => 3455, |
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'18-01-31' => 3455, |
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'18-02-28' => 3455, |
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'18-03-31' => 3455, |
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148
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'18-04-30' => 3455, |
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149
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'18-05-31' => 3455, |
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150
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'18-06-30' => 3455, |
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'18-07-31' => 3455, |
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'18-08-31' => 3455, |
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153
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'18-09-30' => 3455, |
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154
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'18-10-31' => 3455, |
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'18-11-30' => 3455, |
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156
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'18-12-31' => 3455, |
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157
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'19-01-31' => 3455, |
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158
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'19-02-28' => 3455, |
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159
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'19-03-31' => 3455, |
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'19-04-30' => 3455, |
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'19-05-31' => 3455, |
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'19-06-30' => 3455, |
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'19-07-31' => 3455, |
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'19-08-31' => 3455, |
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'19-09-30' => 3455, |
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166
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'19-10-31' => 3455, |
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'19-11-30' => 3455, |
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168
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'19-12-31' => 3455, |
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169
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'20-01-31' => 3455, |
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'20-02-29' => 3455, |
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'20-03-31' => 3455, |
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'20-04-30' => 3455, |
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'20-05-31' => 3455, |
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'20-06-30' => 3455, |
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'20-07-31' => 3455, |
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'20-08-31' => 3455, |
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'20-09-30' => 3455, |
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'20-10-31' => 3455, |
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'20-11-30' => 3455, |
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'20-12-31' => 3455, |
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'21-01-31' => 3455, |
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'21-02-28' => 3455, |
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183
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'21-03-31' => 3455, |
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184
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'21-04-30' => 3455, |
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'21-05-31' => 3455, |
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'21-06-30' => 3455, |
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'21-07-31' => 3455, |
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'21-08-31' => 3455, |
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'21-09-30' => 3455, |
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'21-10-31' => 3455, |
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'21-11-30' => 3455, |
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'21-12-31' => 3455, |
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'22-01-31' => 3455, |
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]; |
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}/** |
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* |
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* @return array |
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*/ |
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View Code Duplication |
private function payments2(): array |
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{ |
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return [ |
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'17-02-28' => 2279, |
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'17-03-31' => 1684, |
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'17-04-30' => 1684, |
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'17-05-31' => 1684, |
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'17-06-30' => 1684, |
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'17-07-31' => 1684, |
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'17-08-31' => 1684, |
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'17-09-30' => 1684, |
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'17-10-31' => 1684, |
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'17-11-30' => 1684, |
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212
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'17-12-31' => 1684, |
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'18-01-31' => 1684, |
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214
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'18-02-28' => 1684, |
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215
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'18-03-31' => 1684, |
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216
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'18-04-30' => 1684, |
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'18-05-31' => 1684, |
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'18-06-30' => 1684, |
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'18-07-31' => 1684, |
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'18-08-31' => 1684, |
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'18-09-30' => 1684, |
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'18-10-31' => 1684, |
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'18-11-30' => 1684, |
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'18-12-31' => 1684, |
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'19-01-31' => 1684, |
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'19-02-28' => 1684, |
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'19-03-31' => 1684, |
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'19-04-30' => 1684, |
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'19-05-31' => 1684, |
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'19-06-30' => 1684, |
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'19-07-31' => 1684, |
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'19-08-31' => 1684, |
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'19-09-30' => 1684, |
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'19-10-31' => 1684, |
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'19-11-30' => 1684, |
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'19-12-31' => 1684, |
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'20-01-31' => 1684, |
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]; |
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}/** |
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* |
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* @return array |
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*/ |
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private function payments3(): array |
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{ |
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return [ |
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'17-02-28' => 2457, |
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'17-03-31' => 1862, |
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'17-04-30' => 1862, |
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249
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'17-05-31' => 1862, |
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'17-06-30' => 1862, |
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'17-07-31' => 1862, |
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252
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'17-08-31' => 1862, |
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253
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'17-09-30' => 1862, |
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254
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'17-10-31' => 1862, |
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255
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'17-11-30' => 1862, |
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256
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'17-12-31' => 1862, |
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257
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'18-01-31' => 1862, |
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258
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'18-02-28' => 1862, |
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259
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'18-03-31' => 1862, |
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260
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'18-04-30' => 1862, |
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261
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'18-05-31' => 1862, |
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262
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'18-06-30' => 1862, |
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263
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'18-07-31' => 1862, |
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264
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'18-08-31' => 1862, |
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265
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'18-09-30' => 1862, |
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266
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'18-10-31' => 1862, |
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267
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'18-11-30' => 1862, |
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268
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'18-12-31' => 1862, |
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269
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'19-01-31' => 1862, |
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270
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'19-02-28' => 1862, |
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271
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'19-03-31' => 1862, |
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272
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'19-04-30' => 1862, |
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273
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'19-05-31' => 1862, |
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274
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'19-06-30' => 1862, |
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'19-07-31' => 1862, |
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'19-08-31' => 1862, |
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'19-09-30' => 1862, |
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'19-10-31' => 1862, |
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279
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'19-11-30' => 1862, |
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280
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'19-12-31' => 1862, |
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281
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'20-01-31' => 1862, |
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282
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'20-02-29' => 1862, |
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283
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'20-03-31' => 1862, |
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284
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'20-04-30' => 1862, |
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285
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'20-05-31' => 1862, |
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286
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'20-06-30' => 1862, |
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287
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'20-07-31' => 1862, |
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288
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'20-08-31' => 1862, |
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289
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'20-09-30' => 1862, |
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290
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'20-10-31' => 1862, |
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291
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'20-11-30' => 1862, |
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292
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'20-12-31' => 1862, |
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293
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'21-01-31' => 1862, |
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294
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'21-02-28' => 1862, |
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295
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'21-03-31' => 1862, |
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296
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'21-04-30' => 1862, |
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297
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|
|
'21-05-31' => 1862, |
|
298
|
|
|
'21-06-30' => 1862, |
|
299
|
|
|
'21-07-31' => 1862, |
|
300
|
|
|
'21-08-31' => 1862, |
|
301
|
|
|
'21-09-30' => 1862, |
|
302
|
|
|
'21-10-31' => 1862, |
|
303
|
|
|
'21-11-30' => 1862, |
|
304
|
|
|
'21-12-31' => 1862, |
|
305
|
|
|
'22-01-31' => 1862, |
|
306
|
|
|
'22-02-28' => 1862, |
|
307
|
|
|
'22-03-31' => 1862, |
|
308
|
|
|
'22-04-30' => 1862, |
|
309
|
|
|
'22-05-31' => 1862, |
|
310
|
|
|
'22-06-30' => 1862, |
|
311
|
|
|
'22-07-31' => 1862, |
|
312
|
|
|
'22-08-31' => 1862, |
|
313
|
|
|
'22-09-30' => 1862, |
|
314
|
|
|
'22-10-31' => 1862, |
|
315
|
|
|
'22-11-30' => 1862, |
|
316
|
|
|
'22-12-31' => 1862, |
|
317
|
|
|
'23-01-31' => 1862, |
|
318
|
|
|
]; |
|
319
|
|
|
} |
|
320
|
|
|
} |
|
321
|
|
|
|
Nyholm /
effective-interest-rate
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Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.