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391 lines
14 KiB
PHP
391 lines
14 KiB
PHP
<?php
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namespace Psalm\Tests\TypeReconciliation;
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use Psalm\Tests\TestCase;
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use Psalm\Tests\Traits\InvalidCodeAnalysisTestTrait;
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use Psalm\Tests\Traits\ValidCodeAnalysisTestTrait;
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use const DIRECTORY_SEPARATOR;
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class InArrayTest extends TestCase
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{
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use ValidCodeAnalysisTestTrait;
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use InvalidCodeAnalysisTestTrait;
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/**
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* @return iterable<string,array{string,assertions?:array<string,string>,error_levels?:string[]}>
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*/
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public function providerValidCodeParse(): iterable
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{
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return [
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'nullTypeRemovedAfterNegatedAssertionAgainstArrayOfInt' => [
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'<?php
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/**
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* @param int|null $x
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* @return int
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*/
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function assertInArray($x) {
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if (!in_array($x, range(0, 5), true)) {
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throw new \Exception();
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}
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return $x;
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}',
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],
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'nullTypeRemovedAfterAssertionAgainstArrayOfInt' => [
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'<?php
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/**
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* @param int|null $x
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* @param non-empty-list<int> $y
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* @return int
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*/
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function assertInArray($x, $y) {
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if (in_array($x, $y, true)) {
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return $x;
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}
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throw new \Exception();
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}
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',
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],
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'typeNotChangedAfterAssertionAgainstArrayOfMixed' => [
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'<?php
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/**
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* @param int|null $x
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* @param list<mixed> $y
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* @return int|null
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*/
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function assertInArray($x, $y) {
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if (!in_array($x, $y, true)) {
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throw new \Exception();
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}
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return $x;
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}',
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],
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'unionTypeReconciledToUnionTypeOfHaystackValueTypes' => [
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'<?php
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/**
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* @param int|string|bool $x
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* @param non-empty-list<int|string> $y
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* @return int|string
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*/
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function assertInArray($x, $y) {
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if (in_array($x, $y, true)) {
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return $x;
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}
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throw new \Exception();
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}
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',
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],
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'unionTypesReducedToIntersectionWithinAssertion' => [
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'<?php
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/**
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* @param int|bool $x
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* @param non-empty-list<int|string> $y
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* @return int
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*/
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function assertInArray($x, $y) {
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if (in_array($x, $y, true)) {
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return $x;
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}
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throw new Exception();
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}',
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],
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'unionTypesReducedToIntersectionOutsideOfNegatedAssertion' => [
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'<?php
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/**
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* @param int|bool $x
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* @param non-empty-list<int|string> $y
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* @return int
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*/
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function assertInArray($x, $y) {
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if (!in_array($x, $y, true)) {
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throw new Exception();
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}
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return $x;
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}',
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],
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'assertInArrayOfNotIntersectingTypeReturnsOriginalTypeOutsideOfAssertion' => [
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'<?php
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/**
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* @param int $x
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* @param list<string> $y
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* @return int
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*/
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function assertInArray($x, $y) {
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if (in_array($x, $y, true)) {
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throw new \Exception();
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}
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return $x;
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}',
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'assertions' => [],
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'error_level' => ['RedundantConditionGivenDocblockType', 'DocblockTypeContradiction'],
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],
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'assertNegatedInArrayOfNotIntersectingTypeReturnsOriginalType' => [
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'<?php
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/**
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* @param int $x
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* @param list<string> $y
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* @return int
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*/
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function assertInArray($x, $y) {
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if (!in_array($x, $y, true)) {
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return $x;
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}
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throw new \Exception();
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}',
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'assertions' => [],
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'error_level' => ['RedundantConditionGivenDocblockType'],
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],
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'assertAgainstListOfLiteralsAndScalarUnion' => [
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'<?php
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/**
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* @param string|bool $x
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* @param non-empty-list<"a"|"b"|int> $y
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* @return "a"|"b"
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*/
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function assertInArray($x, $y) {
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if (in_array($x, $y, true)) {
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return $x;
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}
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throw new Exception();
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}',
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],
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'assertAgainstListOfLiteralsAndScalarUnionTypeHint' => [
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'<?php
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/**
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* @param non-empty-list<"a"|"b"|int> $y
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* @return "a"|"b"
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*/
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function assertInArray(string|bool $x, $y) {
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if (in_array($x, $y, true)) {
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return $x;
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}
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throw new Exception();
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}',
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[],
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[],
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'8.0'
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],
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'in_arrayNullOrString' => [
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'<?php
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function test(?string $x, string $y): void {
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if (in_array($x, [null, $y], true)) {
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if ($x === null) {
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echo "Saw null\n";
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}
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echo "Saw $x\n";
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}
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}',
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[],
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[],
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'8.0'
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],
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'in_array-mixed-twice' => [
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'<?php
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function contains(array $list1, array $list2, mixed $element): void
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{
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if (in_array($element, $list1, true)) {
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} elseif (in_array($element, $list2, true)) {
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}
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}',
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[],
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[],
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'8.0'
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],
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'in_array-string-twice' => [
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'<?php
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/**
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* @param string[] $list1
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* @param string[] $list2
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*/
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function contains(array $list1, array $list2, string $element): void
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{
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if (in_array($element, $list1, true)) {
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} elseif (in_array($element, $list2, true)) {
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}
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}',
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[],
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[],
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'8.0'
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],
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'in_array-keyed-array-string-twice' => [
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'<?php
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function contains(string $a, string $b, mixed $element): void
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{
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if (in_array($element, [$a], true)) {
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} elseif (in_array($element, [$b], true)) {
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}
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}',
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[],
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[],
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'8.0'
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],
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];
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}
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/**
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* @return iterable<string,array{string,error_message:string,1?:string[],2?:bool,3?:string}>
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*/
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public function providerInvalidCodeParse(): iterable
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{
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return [
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'typeNotChangedAfterNegatedAssertionAgainstUnsealedArrayOfMixed' => [
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'<?php
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/**
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* @param int|null $x
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* @param non-empty-list<mixed> $y
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* @return int
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*/
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function assertInArray($x, $y) {
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if (!in_array($x, $y, true)) {
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return $x;
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}
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throw new \Exception();
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}
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',
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'error_message' => 'NullableReturnStatement',
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],
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'typeNotChangedAfterNegatedAssertionAgainstUnsealedArrayOfUnionType' => [
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'<?php
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/**
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* @param int|null $x
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* @param non-empty-list<int|null> $y
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* @return int
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*/
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function assertInArray($x, $y) {
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if (!in_array($x, $y, true)) {
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return $x;
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}
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throw new \Exception();
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}
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',
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'error_message' => 'NullableReturnStatement',
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],
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'initialTypeRemainsOutsideOfAssertion' => [
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'<?php
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/**
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* @param int|bool $x
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* @param non-empty-list<int|string> $y
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* @return int
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*/
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function assertInArray($x, $y) {
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if (in_array($x, $y, true)) {
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throw new Exception();
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}
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return $x;
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}',
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'error_message' => 'InvalidReturnStatement - src' . DIRECTORY_SEPARATOR . 'somefile.php:11:32 - The inferred type \'bool|int\' does not match the declared return type \'int\' for assertInArray',
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],
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'initialTypeRemainsWithinTheNegatedAssertion' => [
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'<?php
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/**
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* @param int|bool $x
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* @param non-empty-list<int|string> $y
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* @return int
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*/
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function assertInArray($x, $y) {
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if (!in_array($x, $y, true)) {
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return $x;
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}
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throw new Exception();
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}',
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'error_message' => 'InvalidReturnStatement - src' . DIRECTORY_SEPARATOR . 'somefile.php:9:36 - The inferred type \'bool|int\' does not match the declared return type \'int\' for assertInArray',
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],
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'assertInArrayOfNotIntersectingTypeTriggersTypeContradiction' => [
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'<?php
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/**
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* @param int $x
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* @param list<string> $y
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* @return int
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*/
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function assertInArray($x, $y) {
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if (in_array($x, $y, true)) {
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throw new \Exception();
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}
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return $x;
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}',
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'error_message' => 'DocblockTypeContradiction - src' . DIRECTORY_SEPARATOR . 'somefile.php:8:29 - Operand of type false is always false',
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],
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'assertNegatedInArrayOfNotIntersectingTypeTriggersRedundantCondition' => [
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'<?php
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/**
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* @param int $x
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* @param list<string> $y
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* @return int
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*/
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function assertInArray($x, $y) {
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if (!in_array($x, $y, true)) {
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return $x;
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}
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throw new \Exception();
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}',
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'error_message' => 'RedundantConditionGivenDocblockType - src' . DIRECTORY_SEPARATOR . 'somefile.php:8:29 - Operand of type true is always true',
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],
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'assertInArrayOfNotIntersectingTypeTriggersDocblockTypeContradiction' => [
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'<?php
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/**
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* @param int $x
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* @param list<string> $y
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* @return string
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*/
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function assertInArray($x, $y) {
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if (in_array($x, $y, true)) {
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return $x;
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}
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throw new \Exception();
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}',
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'error_message' => 'DocblockTypeContradiction - src' . DIRECTORY_SEPARATOR . 'somefile.php:8:29 - Operand of type false is always false',
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],
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'assertInArrayOfNotIntersectingTypeReturnsTriggersDocblockTypeContradiction' => [
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'<?php
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/**
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* @param int $x
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* @param list<string> $y
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* @return string
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*/
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function assertInArray($x, $y) {
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if (in_array($x, $y, true)) {
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return $x;
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}
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throw new \Exception();
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}',
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'error_message' => 'DocblockTypeContradiction - src' . DIRECTORY_SEPARATOR . 'somefile.php:8:29 - Operand of type false is always false',
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'error_levels' => ['RedundantConditionGivenDocblockType'],
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],
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'inArrayDetectType' => [
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'<?php
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function x($foo, string $bar): void {
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if (!in_array($foo, [$bar], true)) {
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throw new Exception();
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}
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if (is_string($foo)) {}
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}',
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// foo is always string
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'error_message' => 'RedundantCondition',
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],
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'inArrayRemoveInvalid' => [
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'<?php
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function x(?string $foo, int $bar): void {
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if (!in_array($foo, [$bar], true)) {
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throw new Exception();
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}
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}',
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// Type null|string is never int
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'error_message' => 'RedundantCondition',
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],
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];
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}
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}
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