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https://github.com/danog/psalm.git
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438 lines
15 KiB
PHP
438 lines
15 KiB
PHP
<?php
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namespace Psalm\Tests;
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class ArgTest extends TestCase
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{
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use Traits\InvalidCodeAnalysisTestTrait;
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use Traits\ValidCodeAnalysisTestTrait;
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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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'argumentUnpackingLiteral' => [
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'<?php
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function add(int $a, int $b, int $c) : int {
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return $a + $b + $c;
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}
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echo add(1, ...[2, 3]);',
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],
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'arrayPushArgumentUnpackingWithGoodArg' => [
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'<?php
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$a = ["foo"];
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$b = ["foo", "bar"];
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array_push($a, ...$b);',
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'assertions' => [
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'$a' => 'non-empty-list<string>',
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],
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],
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'arrayMergeArgumentUnpacking' => [
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'<?php
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$a = [[1, 2]];
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$b = array_merge([], ...$a);',
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'assertions' => [
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'$b' => 'array{0: int, 1: int}',
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],
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],
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'preserveTypesWhenUnpacking' => [
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'<?php
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/**
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* @return array<int,array<int,string>>
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*/
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function getData(): array
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{
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return [
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["a", "b"],
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["c", "d"]
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];
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}
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/**
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* @return array<int,string>
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*/
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function f1(): array
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{
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$data = getData();
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return array_merge($data[0], $data[1]);
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}
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/**
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* @return array<int,string>
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*/
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function f2(): array
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{
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$data = getData();
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return array_merge(...$data);
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}
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/**
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* @return array<int,string>
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*/
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function f3(): array
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{
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$data = getData();
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return array_merge([], ...$data);
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}',
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],
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'unpackArg' => [
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'<?php
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function Foo(string $a, string ...$b) : void {}
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/** @return array<int, string> */
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function Baz(string ...$c) {
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Foo(...$c);
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return $c;
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}',
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],
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'unpackByRefArg' => [
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'<?php
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function example (int &...$x): void {}
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$y = 0;
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example($y);
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$z = [0];
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example(...$z);',
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'assertions' => [
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'$y' => 'int',
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'$z' => 'array<int, int>',
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],
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],
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'callMapClassOptionalArg' => [
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'<?php
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class Hello {}
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$m = new ReflectionMethod(Hello::class, "goodbye");
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$m->invoke(null, "cool");',
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],
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'sortFunctions' => [
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'<?php
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$a = ["b" => 5, "a" => 8];
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ksort($a);
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$b = ["b" => 5, "a" => 8];
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sort($b);
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',
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'assertions' => [
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'$a' => 'array{a: int, b: int}',
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'$b' => 'list<int>',
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],
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],
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'arrayModificationFunctions' => [
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'<?php
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$a = ["b" => 5, "a" => 8];
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array_unshift($a, (bool)rand(0, 1));
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$b = ["b" => 5, "a" => 8];
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array_push($b, (bool)rand(0, 1));
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',
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'assertions' => [
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'$a' => 'non-empty-array<int|string, bool|int>',
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'$b' => 'non-empty-array<int|string, bool|int>',
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],
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],
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'byRefArgAssignment' => [
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'<?php
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$a = ["hello", "goodbye"];
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shuffle($a);
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$a = [0, 1];',
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],
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'correctOrderValidation' => [
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'<?php
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function getString(int $i) : string {
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return rand(0, 1) ? "hello" : "";
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}
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function takesInt(int $i) : void {}
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$i = rand(0, 10);
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if (!($i = getString($i))) {}',
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],
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'allowNullInObjectUnion' => [
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'<?php
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/**
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* @param string|null|object $b
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*/
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function foo($b) : void {}
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foo(null);',
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],
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'allowArrayIntScalarForArrayStringWithScalarIgnored' => [
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'<?php
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/** @param array<int|string> $arr */
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function foo(array $arr) : void {
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}
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/** @return array<int, scalar> */
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function bar() : array {
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return [];
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}
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/** @psalm-suppress InvalidScalarArgument */
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foo(bar());',
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],
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'allowArrayScalarForArrayStringWithScalarIgnored' => [
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'<?php declare(strict_types=1);
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/** @param array<string> $arr */
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function foo(array $arr) : void {}
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/** @return array<int, scalar> */
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function bar() : array {
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return [];
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}
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/** @psalm-suppress InvalidScalarArgument */
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foo(bar());',
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],
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'unpackObjectlikeListArgs' => [
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'<?php
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$a = [new DateTime(), 1];
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function f(DateTime $d, int $a): void {}
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f(...$a);',
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],
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'unpackWithoutAlteringArray' => [
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'<?php
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function takeVariadicInts(int ...$inputs): void {}
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$a = [3, 5, 7];
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takeVariadicInts(...$a);',
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[
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'$a' => 'non-empty-list<int>'
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]
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],
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'iterableSplat' => [
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'<?php
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function foo(iterable $args): int {
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return intval(...$args);
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}
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function bar(ArrayIterator $args): int {
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return intval(...$args);
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}',
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],
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'unpackListWithOptional' => [
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'<?php
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function foo(string ...$rest):void {}
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$rest = ["zzz"];
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if (rand(0,1)) {
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$rest[] = "xxx";
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}
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foo("first", ...$rest);'
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],
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'useNamedArguments' => [
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'<?php
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class CustomerData {
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public function __construct(
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public string $name,
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public string $email,
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public int $age,
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) {}
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}
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/**
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* @param array{age: int, name: string, email: string} $input
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*/
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function foo(array $input) : CustomerData {
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return new CustomerData(
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age: $input["age"],
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name: $input["name"],
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email: $input["email"],
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);
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}'
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],
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'useNamedArgumentsSimple' => [
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'<?php
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function takesArguments(string $name, int $age) : void {}
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takesArguments(name: "hello", age: 5);
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takesArguments(age: 5, name: "hello");'
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],
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'useNamedArgumentsSpread' => [
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'<?php
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function takesArguments(string $name, int $age) : void {}
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$args = ["name" => "hello", "age" => 5];
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takesArguments(...$args);',
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[],
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[],
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'8.0'
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],
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];
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}
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/**
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* @return iterable<string,array{string,error_message:string,2?:string[],3?:bool,4?:string}>
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*/
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public function providerInvalidCodeParse(): iterable
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{
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return [
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'arrayPushArgumentUnpackingWithBadArg' => [
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'<?php
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$a = [];
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$b = "hello";
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$a[] = "foo";
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array_push($a, ...$b);',
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'error_message' => 'InvalidArgument',
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],
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'possiblyInvalidArgument' => [
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'<?php
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$foo = [
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"a",
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["b"],
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];
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$a = array_map(
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function (string $uuid): string {
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return $uuid;
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},
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$foo[rand(0, 1)]
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);',
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'error_message' => 'PossiblyInvalidArgument',
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],
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'possiblyInvalidArgumentWithOverlap' => [
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'<?php
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class A {}
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class B {}
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class C {}
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$foo = rand(0, 1) ? new A : new B;
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/** @param B|C $b */
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function bar($b) : void {}
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bar($foo);',
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'error_message' => 'PossiblyInvalidArgument',
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],
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'possiblyInvalidArgumentWithMixed' => [
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'<?php declare(strict_types=1);
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/**
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* @psalm-suppress MissingParamType
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* @psalm-suppress MixedArgument
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*/
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function foo($a) : void {
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if (rand(0, 1)) {
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$a = 0;
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}
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echo strlen($a);
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}',
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'error_message' => 'PossiblyInvalidArgument',
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],
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'expectsNonNullAndPassedPossiblyNull' => [
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'<?php
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/**
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* @param mixed|null $mixed_or_null
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*/
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function foo($mixed, $mixed_or_null): void {
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/**
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* @psalm-suppress MixedArgument
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*/
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new Exception($mixed_or_null);
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}',
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'error_message' => 'PossiblyNullArgument'
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],
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'useInvalidNamedArgument' => [
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'<?php
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class CustomerData {
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public function __construct(
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public string $name,
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public string $email,
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public int $age,
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) {}
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}
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/**
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* @param array{age: int, name: string, email: string} $input
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*/
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function foo(array $input) : CustomerData {
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return new CustomerData(
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aage: $input["age"],
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name: $input["name"],
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email: $input["email"],
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);
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}',
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'error_message' => 'InvalidNamedArgument'
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],
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'noNamedArgsMethod' => [
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'<?php
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class CustomerData
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{
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/** @no-named-arguments */
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public function __construct(
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public string $name,
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public string $email,
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public int $age,
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) {}
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}
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/**
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* @param array{age: int, name: string, email: string} $input
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*/
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function foo(array $input) : CustomerData {
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return new CustomerData(
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age: $input["age"],
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name: $input["name"],
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email: $input["email"],
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);
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}',
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'error_message' => 'InvalidScalarArgument'
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],
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'noNamedArgsFunction' => [
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'<?php
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/** @no-named-arguments */
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function takesArguments(string $name, int $age) : void {}
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takesArguments(age: 5, name: "hello");',
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'error_message' => 'InvalidScalarArgument'
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],
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'arrayWithoutAllNamedParameters' => [
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'<?php
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class User {
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public function __construct(
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public int $id,
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public string $name,
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public int $age
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) {}
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}
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/**
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* @param array{id: int, name: string} $data
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*/
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function processUserDataInvalid(array $data) : User {
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return new User(...$data);
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}',
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'error_message' => 'MixedArgument',
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[],
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false,
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'8.0'
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],
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'arrayWithoutAllNamedParametersSuppressMixed' => [
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'<?php
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class User {
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public function __construct(
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public int $id,
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public string $name,
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public int $age
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) {}
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}
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/**
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* @param array{id: int, name: string} $data
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*/
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function processUserDataInvalid(array $data) : User {
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/** @psalm-suppress MixedArgument */
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return new User(...$data);
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}',
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'error_message' => 'TooFewArguments',
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[],
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false,
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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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