57 lines
1.2 KiB
PHP
57 lines
1.2 KiB
PHP
<?php
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/**
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* Copyright 2018 Kacper Donat
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*
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* @author Kacper "Kadet" Donat <kacper@kadet.net>
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*
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* Full license available in separate LICENSE file
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*/
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use Kadet\Functional as f;
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class MemoizedFunctionTest extends \PHPUnit\Framework\TestCase
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{
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/** @var \PHPUnit\Framework\MockObject\MockObject */
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private $mock;
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protected function setUp(): void
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{
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$this->mock = $this->createMock(MemoizedTarget::class);
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}
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public function testCalledOnlyOnce()
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{
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$memoized = f\memoize([$this->mock, 'memoized']);
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$this->mock->expects($this->once())->method('memoized')->with();
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for ($i = 0; $i < 10; $i++) {
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$memoized();
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}
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}
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public function testCalledOnlyOncePerArgs()
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{
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$memoized = f\memoize([$this->mock, 'memoized']);
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$calls = [];
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$this->mock->expects($this->exactly(2))->method('memoized')->willReturnCallback(
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function (...$args) use (&$calls) {
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$calls[] = $args;
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}
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);
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for ($i = 0; $i < 10; $i++) {
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$memoized('a');
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$memoized([]);
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}
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$this->assertSame([['a'], [[]]], $calls);
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}
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}
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class MemoizedTarget
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{
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public function memoized() {}
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}
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