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https://github.com/danog/endtoend-test-psl.git
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58 lines
1.7 KiB
PHP
58 lines
1.7 KiB
PHP
<?php
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declare(strict_types=1);
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namespace Psl\Tests\Arr;
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use PHPUnit\Framework\TestCase;
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use Psl\Arr;
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use Psl\Collection;
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use Psl\Exception;
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use Psl\Iter;
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use Psl\Str;
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class GroupByTest extends TestCase
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{
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/**
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* @dataProvider provideData
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*/
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public function testGroupBy(array $expected, iterable $values, callable $callable): void
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{
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self::assertSame($expected, Arr\group_by($values, $callable));
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}
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public function provideData(): array
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{
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return [
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[
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[7 => [2], 8 => [3], 9 => [4], 10 => [5], 11 => [6], 12 => [7, 8, 9, 10]],
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Iter\range(0, 10),
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fn ($i) => $i < 2 ? null : (($i >= 7) ? 12 : ($i + 5)),
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],
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[
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[7 => [2], 8 => [3], 9 => [4], 10 => [5], 11 => [6], 12 => [7], 13 => [8], 14 => [9], 15 => [10]],
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Iter\range(0, 10),
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fn ($i) => $i < 2 ? null : $i + 5,
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],
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[
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['username' => ['@azjezz', '@fabpot', '@blacksun'], 'name' => ['Saif Eddin', 'Fabien', 'Gabrielle']],
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new Collection\Vector(['@azjezz', 'Saif Eddin', '@fabpot', 'Fabien', '@blacksun', 'Gabrielle']),
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fn ($name) => Str\starts_with($name, '@') ? 'username' : 'name',
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],
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];
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}
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public function testGroupByThrowsWhenKeyFunReturnsNonArrayKey(): void
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{
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$this->expectException(Exception\InvariantViolationException::class);
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$this->expectExceptionMessage('Expected $key_func to return a value of type array-key, value of type (object) returned.');
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Arr\group_by(
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Iter\range(0, 5),
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fn ($x) => new Collection\Vector([$x, $x])
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);
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}
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}
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