mirror of
https://github.com/danog/psalm.git
synced 2024-11-27 12:55:26 +01:00
489 lines
16 KiB
PHP
489 lines
16 KiB
PHP
<?php
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namespace Psalm\Tests;
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class IssetTest extends TestCase
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{
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use Traits\ValidCodeAnalysisTestTrait;
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use Traits\InvalidCodeAnalysisTestTrait;
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/**
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* @return array
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*/
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public function providerValidCodeParse()
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{
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return [
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'issetWithSimpleAssignment' => [
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'<?php
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$array = [];
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if (isset($array[$a = 5])) {
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print "hello";
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}
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print $a;',
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'assertions' => [],
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'error_levels' => ['EmptyArrayAccess'],
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],
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'issetWithMultipleAssignments' => [
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'<?php
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if (rand(0, 4) > 2) {
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$arr = [5 => [3 => "hello"]];
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}
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if (isset($arr[$a = 5][$b = 3])) {
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}
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echo $a;
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echo $b;',
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'assertions' => [],
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'error_levels' => ['MixedArrayAccess'],
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],
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'isset' => [
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'<?php
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$a = isset($b) ? $b : null;',
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'assertions' => [
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'$a' => 'mixed',
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],
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'error_levels' => ['MixedAssignment'],
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],
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'nullCoalesce' => [
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'<?php
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$a = $b ?? null;',
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'assertions' => [
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'$a' => 'mixed',
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],
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'error_levels' => ['MixedAssignment'],
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],
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'nullCoalesceWithGoodVariable' => [
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'<?php
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$b = rand(0, 10) > 5 ? "hello" : null;
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$a = $b ?? null;',
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'assertions' => [
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'$a' => 'string|null',
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],
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],
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'issetKeyedOffset' => [
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'<?php
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if (!isset($foo["a"])) {
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$foo["a"] = "hello";
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}',
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'assertions' => [
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'$foo[\'a\']' => 'mixed',
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],
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'error_levels' => [],
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'scope_vars' => [
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'$foo' => \Psalm\Type::getArray(),
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],
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],
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'issetKeyedOffsetORFalse' => [
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'<?php
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/** @return void */
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function takesString(string $str) {}
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$bar = rand(0, 1) ? ["foo" => "bar"] : false;
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if (isset($bar["foo"])) {
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takesString($bar["foo"]);
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}',
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'assertions' => [],
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'error_levels' => ['PossiblyInvalidArrayAccess'],
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],
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'nullCoalesceKeyedOffset' => [
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'<?php
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$foo["a"] = $foo["a"] ?? "hello";',
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'assertions' => [
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'$foo[\'a\']' => 'mixed',
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],
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'error_levels' => ['MixedAssignment'],
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'scope_vars' => [
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'$foo' => \Psalm\Type::getArray(),
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],
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],
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'noRedundantConditionOnMixed' => [
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'<?php
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function testarray(array $data): void {
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foreach ($data as $item) {
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if (isset($item["a"]) && isset($item["b"]) && isset($item["b"]["c"])) {
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echo "Found\n";
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}
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}
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}',
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'assertions' => [],
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'error_levels' => ['MixedAssignment', 'MixedArrayAccess'],
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],
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'testUnset' => [
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'<?php
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$foo = ["a", "b", "c"];
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foreach ($foo as $bar) {}
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unset($foo, $bar);
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function foo(): void {
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$foo = ["a", "b", "c"];
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foreach ($foo as $bar) {}
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unset($foo, $bar);
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}',
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],
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'issetObjectLike' => [
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'<?php
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$arr = [
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"profile" => [
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"foo" => "bar",
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],
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"groups" => [
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"foo" => "bar",
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"hide" => rand() % 2 > 0,
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],
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];
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foreach ($arr as $item) {
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if (!isset($item["hide"]) || !$item["hide"]) {}
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}',
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],
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'issetPropertyAffirmsObject' => [
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'<?php
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class A {
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/** @var ?int */
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public $id;
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}
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function takesA(?A $a): A {
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if (isset($a->id)) {
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return $a;
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}
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return new A();
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}',
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],
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'issetVariableKeysWithoutChange' => [
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'<?php
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$arr = [[1, 2, 3], null, [1, 2, 3], null];
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$b = 2;
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$c = 0;
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if (isset($arr[$b][$c])) {
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echo $arr[$b][$c];
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}',
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],
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'issetNonNullArrayKey' => [
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'<?php
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/**
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* @param array<int, int> $arr
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*/
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function foo(array $arr) : int {
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$b = rand(0, 3);
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if (!isset($arr[$b])) {
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throw new \Exception("bad");
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}
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return $arr[$b];
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}',
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],
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'issetArrayOffsetConditionalCreationWithInt' => [
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'<?php
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/** @param array<int, string> $arr */
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function foo(array $arr) : string {
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if (!isset($arr[0])) {
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$arr[0] = "hello";
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}
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return $arr[0];
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}',
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],
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'issetArrayOffsetConditionalCreationWithVariable' => [
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'<?php
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/** @param array<int, string> $arr */
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function foo(array $arr) : string {
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$b = 5;
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if (!isset($arr[$b])) {
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$arr[$b] = "hello";
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}
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return $arr[$b];
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}',
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],
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'noExceptionOnBracketString' => [
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'<?php
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if (isset($foo["bar[]"])) {}',
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],
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'issetArrayOffsetAndProperty' => [
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'<?php
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class A {
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/** @var ?B */
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public $b;
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}
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class B {}
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/**
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* @param A[] $arr
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*/
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function takesAList(array $arr) : B {
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if (isset($arr[1]->b)) {
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return $arr[1]->b;
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}
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throw new \Exception("bad");
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}',
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],
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'allowUnknownAdditionToInt' => [
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'<?php
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$arr = [1, 1, 1, 1, 2, 5, 3, 2];
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$cumulative = [];
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foreach ($arr as $val) {
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if (isset($cumulative[$val])) {
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$cumulative[$val] = $cumulative[$val] + 1;
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} else {
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$cumulative[$val] = 1;
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}
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}',
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],
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'allowUnknownArrayMergeToInt' => [
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'<?php
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$arr = [1, 1, 1, 1, 2, 5, 3, 2];
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$cumulative = [];
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foreach ($arr as $val) {
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if (isset($cumulative[$val])) {
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$cumulative[$val] = array_merge($cumulative[$val], [$val]);
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} else {
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$cumulative[$val] = [$val];
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}
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}
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foreach ($cumulative as $arr) {
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foreach ($arr as $val) {
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takesInt($val);
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}
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}
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function takesInt(int $i) : void {}',
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],
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'returnArrayWithDefinedKeys' => [
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'<?php
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/**
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* @param array{bar?: int, foo: int|string} $arr
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* @return array{bar: int, foo: string}|null
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*/
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function foo(array $arr) : ?array {
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if (!isset($arr["bar"])) {
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return null;
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}
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if (is_int($arr["foo"])) {
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return null;
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}
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return $arr;
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}',
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],
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'arrayAccessAfterOneIsset' => [
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'<?php
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$arr = [];
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foreach ([1, 2, 3] as $foo) {
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if (!isset($arr["bar"])) {
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$arr["bar"] = 0;
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}
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echo $arr["bar"];
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}',
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],
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'arrayAccessAfterTwoIssets' => [
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'<?php
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$arr = [];
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foreach ([1, 2, 3] as $foo) {
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if (!isset($arr["foo"])) {
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$arr["foo"] = 0;
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}
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if (!isset($arr["bar"])) {
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$arr["bar"] = 0;
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}
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echo $arr["bar"];
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}',
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],
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'issetAdditionalVar' => [
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'<?php
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class Example {
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const FOO = "foo";
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/**
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* @param array{bar:string} $params
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*/
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public function test(array $params) : bool {
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if (isset($params[self::FOO])) {
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return true;
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}
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if (isset($params["bat"])) {
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return true;
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}
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return false;
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}
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}'
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],
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'noRedundantConditionAfterIsset' => [
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'<?php
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/** @param array<string, array<int, string>> $arr */
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function foo(array $arr, string $k) : void {
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if (!isset($arr[$k])) {
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return;
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}
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if ($arr[$k][0]) {}
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}',
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],
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'mixedArrayIsset' => [
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'<?php
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$a = isset($_GET["a"]) ? $_GET["a"] : "";
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if ($a) {}',
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'assertions' => [],
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'error_levels' => ['MixedAssignment', 'MixedArrayAccess'],
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],
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'mixedArrayIssetGetStringVar' => [
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'<?php
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if (isset($_GET["b"]) && is_string($_GET["b"])) {
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echo $_GET["b"];
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}',
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],
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'nestedArrayAccessInLoopAfterIsset' => [
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'<?php
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$arr = [];
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while (rand(0, 1)) {
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if (rand(0, 1)) {
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if (!isset($arr["a"]["b"])) {
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$arr["a"]["b"] = "foo";
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}
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echo $arr["a"]["b"];
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} else {
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$arr["c"] = "foo";
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}
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}'
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],
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'issetVarInLoopBeforeAssignment' => [
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'<?php
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function foo() : void {
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while (rand(0, 1)) {
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if (!isset($foo)) {
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$foo = 1;
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}
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}
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}',
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],
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'issetOnArrayAccess' => [
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'<?php
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function foo(ArrayAccess $arr) : void {
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$a = isset($arr["a"]) ? $arr["a"] : "a";
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takesInt($a);
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}
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function takesInt(int $i) : void {}',
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'assertions' => [],
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'error_levels' => ['MixedAssignment', 'MixedArgument'],
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],
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'noParadoxOnMultipleNotIssets' => [
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'<?php
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/** @var array */
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$array = [];
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function sameString(string $string): string {
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return $string;
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}
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if (isset($array[sameString("key1")]) || isset($array[sameString("key2")])) {
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throw new \InvalidArgumentException();
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}
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if (!isset($array[sameString("key3")]) || !isset($array[sameString("key4")])) {
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throw new \InvalidArgumentException();
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}'
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],
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'notIssetOneOrOther' => [
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'<?php
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$foo = [
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"one" => rand(0,1) ? new DateTime : null,
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"two" => rand(0,1) ? new DateTime : null,
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"three" => new DateTime
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];
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if (!(isset($foo["one"]) || isset($foo["two"]))) {
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exit;
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}
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echo $foo["one"]->format("Y");',
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'assertions' => [],
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'error_levels' => ['PossiblyNullReference'],
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],
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'notIssetOneOrOtherWithoutAssert' => [
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'<?php
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$foo = [
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"one" => rand(0,1) ? new DateTime : null,
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"two" => rand(0,1) ? new DateTime : null,
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"three" => new DateTime
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];
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isset($foo["one"]) || isset($foo["two"]);
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echo $foo["one"]->format("Y");',
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'assertions' => [],
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'error_levels' => ['PossiblyNullReference'],
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],
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'notIssetOneOrOtherWithAssert' => [
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'<?php
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$foo = [
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"one" => rand(0,1) ? new DateTime : null,
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"two" => rand(0,1) ? new DateTime : null,
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"three" => new DateTime
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];
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assert(isset($foo["one"]) || isset($foo["two"]));
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echo $foo["one"]->format("Y");',
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'assertions' => [],
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'error_levels' => ['PossiblyNullReference'],
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],
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];
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}
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/**
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* @return array
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*/
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public function providerInvalidCodeParse()
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{
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return [
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'complainAboutBadCallInIsset' => [
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'<?php
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class A {}
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$a = isset(A::foo()[0]);',
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'error_message' => 'UndefinedMethod',
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],
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'issetVariableKeysWithChange' => [
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'<?php
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$arr = [[1, 2, 3], null, [1, 2, 3], null];
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$b = 2;
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$c = 0;
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if (isset($arr[$b][$c])) {
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$b = 1;
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echo $arr[$b][$c];
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}',
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'error_message' => 'NullArrayAccess',
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],
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'issetAdditionalVarWithSealedObjectLike' => [
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'<?php
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class Example {
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const FOO = "foo";
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public function test() : bool {
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$params = ["bar" => "bat"];
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if (isset($params[self::FOO])) {
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return true;
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}
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return false;
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}
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}',
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'error_message' => 'InvalidArrayOffset',
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],
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];
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}
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}
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