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<?php declare(strict_types=1); |
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namespace Pitchart\Phlunit\Constraint\Arrays; |
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use PHPUnit\Framework\Constraint\Constraint; |
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use PHPUnit\Framework\ExpectationFailedException; |
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use function Pitchart\Transformer\transform; |
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use SebastianBergmann\Comparator\ComparisonFailure; |
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class ContainsExactly extends Constraint |
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{ |
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/** |
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* @var array<mixed> |
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*/ |
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private $elements; |
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/** |
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* ContainsExactly constructor. |
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* |
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* @param array<mixed> ...$elements |
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*/ |
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public function __construct(...$elements) |
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{ |
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$this->elements = $elements; |
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} |
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/** |
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* @param iterable $other |
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* @param string $description |
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* @param bool $returnResult |
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* |
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* @return bool|null |
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*/ |
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public function evaluate($other, string $description = '', bool $returnResult = false): ?bool |
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{ |
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//type cast $other & $this->subset as an array to allow |
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//support in standard array functions. |
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$other = \array_values(ArrayUtility::toArray($other)); |
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$elements = ArrayUtility::toArray($this->elements); |
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$failureList = []; |
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$missing = $this->getMissingElements($other, $elements); |
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$success = $missing === []; |
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if (!empty($missing)) { |
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$count = \count($missing); |
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$failureList[] = \sprintf( |
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"%d %s missing", |
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$count, |
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$count == 1 ? 'element is' : 'elements are' |
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); |
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} |
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$unexpected = $this->getUnexpectedElements($other, $elements); |
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$success = $success && $unexpected === []; |
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if (!empty($unexpected)) { |
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$count = \count($unexpected); |
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$failureList[] = \sprintf( |
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"%d %s unexpected", |
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$count, |
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$count == 1 ? 'element is' : 'elements are' |
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); |
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} |
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if ($success) { |
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foreach ($elements as $key => $element) { |
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if ($element != $other[$key]) { |
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$success = false; |
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$failureList[] = \sprintf("element at position %s is not the one expected", $key); |
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break; |
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} |
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} |
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} |
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if ($returnResult) { |
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return $success; |
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} |
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if (!$success) { |
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throw $this->buildFailure($other, $elements, $failureList, $description); |
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} |
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return null; |
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} |
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private function buildFailure(array $other, array $elements, array $failureList, string $description = ''): ExpectationFailedException |
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{ |
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$failureDescription = \sprintf( |
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'Failed asserting that ' . $this->toString(), |
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\count($elements), |
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\implode(' and ', $failureList) |
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); |
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if (!empty($description)) { |
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$failureDescription = $description . "\n" . $failureDescription; |
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} |
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$comparisonFailure = new ComparisonFailure( |
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$elements, |
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$other, |
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$this->exporter()->export($elements), |
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$this->exporter()->export($other) |
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); |
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return new ExpectationFailedException($failureDescription, $comparisonFailure); |
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} |
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private function getMissingElements(array $other, array $elements): array |
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{ |
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return transform($elements)->diff($other)->toArray(); |
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} |
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private function getUnexpectedElements(array $other, array $elements): array |
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{ |
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return transform($other)->diff($elements)->toArray(); |
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} |
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public function toString(): string |
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{ |
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return 'iterable contains %d expected elements because %s.'; |
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} |
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} |
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