<?php declare(strict_types=1); namespace DNW\Skills\Tests\Numerics; use DNW\Skills\Numerics\BasicMath; use PHPUnit\Framework\TestCase; class BasicMathTest extends TestCase { public function testSquare(): void { $this->assertEquals(1, BasicMath::square(1)); $this->assertEquals(1.44, BasicMath::square(1.2)); $this->assertEquals(4, BasicMath::square(2)); } public function testSum(): void { $arr = [1, 1, 1, 1]; $func_return = static fn(float $f): float => $f; $func_double = static fn(float $f): float => $f * 2; $this->assertEquals(4, BasicMath::sum($arr, $func_return)); $this->assertEquals(8, BasicMath::sum($arr, $func_double)); } }