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https://github.com/danog/psalm.git
synced 2024-12-02 09:37:59 +01:00
929 lines
29 KiB
PHP
929 lines
29 KiB
PHP
<?php
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namespace Psalm\Tests;
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class ValueTest extends TestCase
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{
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use Traits\InvalidCodeAnalysisTestTrait;
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use Traits\ValidCodeAnalysisTestTrait;
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public function setUp() : void
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{
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\Psalm\Internal\Analyzer\FileAnalyzer::clearCache();
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$this->file_provider = new \Psalm\Tests\Internal\Provider\FakeFileProvider();
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$this->project_analyzer = new \Psalm\Internal\Analyzer\ProjectAnalyzer(
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new TestConfig(),
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new \Psalm\Internal\Provider\Providers(
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$this->file_provider,
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new \Psalm\Tests\Internal\Provider\FakeParserCacheProvider()
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)
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);
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$this->project_analyzer->setPhpVersion('7.3');
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$this->project_analyzer->getCodebase()->config->parse_sql = true;
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}
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/**
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* @return iterable<string,array{string,assertions?:array<string,string>,error_levels?:string[]}>
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*/
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public function providerValidCodeParse()
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{
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return [
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'whileCountUpdate' => [
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'<?php
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$array = [1, 2, 3];
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while (rand(1, 10) === 1) {
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$array[] = 4;
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$array[] = 5;
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$array[] = 6;
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}
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if (count($array) === 7) {}',
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],
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'tryCountCatch' => [
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'<?php
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$errors = [];
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try {
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if (rand(0, 1)) {
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throw new Exception("bad");
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}
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} catch (Exception $e) {
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$errors[] = $e;
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}
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if (count($errors) !== 0) {
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echo "Errors";
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}',
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],
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'ternaryDifferentString' => [
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'<?php
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$foo = rand(0, 1) ? "bar" : "bat";
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if ($foo === "bar") {}
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if ($foo !== "bar") {}
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if (rand(0, 1)) {
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$foo = "baz";
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}
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if ($foo === "baz") {}
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if ($foo !== "bat") {}',
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],
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'ifDifferentString' => [
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'<?php
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$foo = "bar";
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if (rand(0, 1)) {
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$foo = "bat";
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} elseif (rand(0, 1)) {
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$foo = "baz";
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}
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$bar = "bar";
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$baz = "baz";
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if ($foo === "bar") {}
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if ($foo !== "bar") {}
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if ($foo === "baz") {}
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if ($foo === $bar) {}
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if ($foo !== $bar) {}
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if ($foo === $baz) {}',
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],
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'ifThisOrThat' => [
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'<?php
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$foo = "bar";
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if (rand(0, 1)) {
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$foo = "bat";
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} elseif (rand(0, 1)) {
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$foo = "baz";
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}
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if ($foo === "baz" || $foo === "bar") {}',
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],
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'ifDifferentNullableString' => [
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'<?php
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$foo = null;
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if (rand(0, 1)) {
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$foo = "bar";
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}
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$bar = "bar";
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if ($foo === "bar") {}
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if ($foo !== "bar") {}',
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],
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'whileIncremented' => [
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'<?php
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$i = 1;
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$j = 2;
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while (rand(0, 1)) {
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if ($i === $j) {}
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$i++;
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}',
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],
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'checkStringKeyValue' => [
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'<?php
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$foo = [
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"0" => 3,
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"1" => 4,
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"2" => 5,
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];
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function takesInt(int $s) : void {}
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foreach ($foo as $i => $b) {
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takesInt($i);
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}',
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],
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'getValidIntStringOffset' => [
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'<?php
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$foo = [
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"0" => 3,
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"1" => 4,
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"2" => 5,
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];
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$a = "2";
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echo $foo["2"];
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echo $foo[$a];',
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],
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'checkStringKeyValueAfterKnownIntStringOffset' => [
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'<?php
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$foo = [
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"0" => 3,
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"1" => 4,
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"2" => 5,
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];
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$a = "2";
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$foo[$a] = 6;
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function takesInt(int $s) : void {}
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foreach ($foo as $i => $b) {
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takesInt($i);
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}',
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],
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'regularComparison1' => [
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'<?php
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function foo(string $s1, string $s2, ?int $i) : string {
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if ($s1 !== $s2) {
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return $s1;
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}
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return $s2;
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}',
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],
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'regularComparison2' => [
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'<?php
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function foo(string $s1, string $s2) : string {
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if ($s1 !== "hello") {
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if ($s1 !== "goodbye") {
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return $s1;
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}
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}
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return $s2;
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}',
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],
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'regularComparison3' => [
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'<?php
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class A {
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const B = 1;
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const C = 2;
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}
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function foo(string $s1, string $s2, ?int $i) : string {
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if ($i !== A::B && $i !== A::C) {}
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return $s2;
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}',
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],
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'regularComparisonOnPossiblyNull' => [
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'<?php
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/** @psalm-ignore-nullable-return */
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function generate() : ?string {
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return rand(0, 1000) ? "hello" : null;
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}
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function foo() : string {
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$str = generate();
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if ($str[0] === "h") {
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return $str;
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}
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return "hello";
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}',
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],
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'incrementAndCheck' => [
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'<?php
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$i = 0;
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if (rand(0, 1)) $i++;
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if ($i === 1) {}',
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],
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'incrementInClosureAndCheck' => [
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'<?php
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$i = 0;
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$a = function() use (&$i) : void {
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if (rand(0, 1)) $i++;
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};
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$a();
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if ($i === 0) {}',
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'assertions' => [],
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'error_levels' => ['MixedOperand'],
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],
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'incrementMixedCall' => [
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'<?php
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function foo($f) : void {
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$i = 0;
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$f->add(function() use (&$i) : void {
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if (rand(0, 1)) $i++;
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});
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if ($i === 0) {}
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}',
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'assertions' => [],
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'error_levels' => ['MissingParamType', 'MixedMethodCall', 'MixedOperand'],
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],
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'regularValueReconciliation' => [
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'<?php
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$s = rand(0, 1) ? "a" : "b";
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if (rand(0, 1)) {
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$s = "c";
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}
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if ($s === "a" || $s === "b") {
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if ($s === "a") {}
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}',
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],
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'moreValueReconciliation' => [
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'<?php
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$a = rand(0, 1) ? "a" : "b";
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$b = rand(0, 1) ? "a" : "b";
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$s = rand(0, 1) ? $a : $b;
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if (rand(0, 1)) $s = "c";
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if ($s === $a) {
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} elseif ($s === $b) {}',
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],
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'negativeInts' => [
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'<?php
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class C {
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const A = 1;
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const B = -1;
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}
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const A = 1;
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const B = -1;
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$i = rand(0, 1) ? A : B;
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if (rand(0, 1)) {
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$i = 0;
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}
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if ($i === A) {
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echo "here";
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} elseif ($i === B) {
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echo "here";
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}
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$i = rand(0, 1) ? C::A : C::B;
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if (rand(0, 1)) {
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$i = 0;
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}
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if ($i === C::A) {
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echo "here";
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} elseif ($i === C::B) {
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echo "here";
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}',
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],
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'falsyReconciliation' => [
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'<?php
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$s = rand(0, 1) ? 200 : null;
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if (!$s) {}',
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],
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'redefinedIntInIfAndPossibleComparison' => [
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'<?php
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$s = rand(0, 1) ? 0 : 1;
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if ($s && rand(0, 1)) {
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if (rand(0, 1)) {
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$s = 2;
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}
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}
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if ($s == 2) {}',
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],
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'noEmpties' => [
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'<?php
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$context = \'a\';
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while ( true ) {
|
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if (rand(0, 1)) {
|
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if (rand(0, 1)) {
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exit;
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||
}
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$context = \'b\';
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} elseif (rand(0, 1)) {
|
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if ($context !== \'c\' && $context !== \'b\') {
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exit;
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}
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$context = \'c\';
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}
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}',
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],
|
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'ifOrAssertionWithSwitch' => [
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'<?php
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function foo(string $s) : void {
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switch ($s) {
|
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case "a":
|
||
case "b":
|
||
case "c":
|
||
if ($s === "a" || $s === "b") {
|
||
throw new \InvalidArgumentException;
|
||
}
|
||
break;
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||
}
|
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}',
|
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],
|
||
'inArrayAssertionProperty' => [
|
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'<?php
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class Foo
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||
{
|
||
/**
|
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* @psalm-var "a"|"b"
|
||
*/
|
||
private $s;
|
||
|
||
public function __construct(string $s)
|
||
{
|
||
if (!in_array($s, ["a", "b"], true)) {
|
||
throw new \InvalidArgumentException;
|
||
}
|
||
$this->s = $s;
|
||
}
|
||
}',
|
||
],
|
||
'inArrayAssertionWithSwitch' => [
|
||
'<?php
|
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function foo(string $s) : void {
|
||
switch ($s) {
|
||
case "a":
|
||
case "b":
|
||
case "c":
|
||
if (in_array($s, ["a", "b"], true)) {
|
||
throw new \InvalidArgumentException;
|
||
}
|
||
break;
|
||
}
|
||
}',
|
||
],
|
||
'removeLiteralStringForNotIsString' => [
|
||
'<?php
|
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function takesInt(int $i) : void {}
|
||
|
||
$f = ["a", "b", "c"];
|
||
$f[rand(0, 2)] = 5;
|
||
|
||
$i = rand(0, 2);
|
||
if (isset($f[$i]) && !is_string($f[$i])) {
|
||
takesInt($f[$i]);
|
||
}',
|
||
],
|
||
'removeLiteralIntForNotIsInt' => [
|
||
'<?php
|
||
function takesString(string $i) : void {}
|
||
|
||
$f = [0, 1, 2];
|
||
$f[rand(0, 2)] = "hello";
|
||
|
||
$i = rand(0, 2);
|
||
if (isset($f[$i]) && !is_int($f[$i])) {
|
||
takesString($f[$i]);
|
||
}',
|
||
],
|
||
'removeLiteralFloatForNotIsFloat' => [
|
||
'<?php
|
||
function takesString(string $i) : void {}
|
||
|
||
$f = [1.1, 1.2, 1.3];
|
||
$f[rand(0, 2)] = "hello";
|
||
|
||
$i = rand(0, 2);
|
||
if (isset($f[$i]) && !is_float($f[$i])) {
|
||
takesString($f[$i]);
|
||
}',
|
||
],
|
||
'coerceFromMixed' => [
|
||
'<?php
|
||
function type(int $b): void {}
|
||
|
||
/**
|
||
* @param mixed $a
|
||
*/
|
||
function foo($a) : void {
|
||
if ($a === 1 || $a === 2) {
|
||
type($a);
|
||
}
|
||
|
||
if (in_array($a, [1, 2], true)) {
|
||
type($a);
|
||
}
|
||
}',
|
||
],
|
||
'coerceFromString' => [
|
||
'<?php
|
||
/** @param "a"|"b" $b */
|
||
function type(string $b): void {}
|
||
|
||
function foo(string $a) : void {
|
||
if ($a === "a" || $a === "b") {
|
||
type($a);
|
||
}
|
||
}',
|
||
],
|
||
'coercePossibleOffset' => [
|
||
'<?php
|
||
class A {
|
||
const FOO = "foo";
|
||
const BAR = "bar";
|
||
const BAT = "bat";
|
||
const BAM = "bam";
|
||
|
||
/** @var self::FOO|self::BAR|self::BAT|null $s */
|
||
public $s;
|
||
|
||
public function isFooOrBar() : void {
|
||
$map = [
|
||
A::FOO => 1,
|
||
A::BAR => 1,
|
||
A::BAM => 1,
|
||
];
|
||
|
||
if ($this->s !== null && isset($map[$this->s])) {}
|
||
}
|
||
}',
|
||
],
|
||
'noRedundantConditionWithMixed' => [
|
||
'<?php
|
||
function foo($a) : void {
|
||
if ($a == "a") {
|
||
} else {
|
||
if ($a == "b" && rand(0, 1)) {}
|
||
}
|
||
}',
|
||
'assertions' => [],
|
||
'error_levels' => ['MissingParamType', 'MixedAssignment'],
|
||
],
|
||
'numericToStringComparison' => [
|
||
'<?php
|
||
/** @psalm-suppress MissingParamType */
|
||
function foo($s) : void {
|
||
if (is_numeric($s)) {
|
||
if ($s === 1) {}
|
||
}
|
||
}',
|
||
],
|
||
'newlineIssue' => [
|
||
'<?php
|
||
$a = "foo";
|
||
$b = "
|
||
|
||
|
||
";
|
||
|
||
$c = $a;
|
||
if (rand(0, 1)) {
|
||
$c = $b;
|
||
}
|
||
|
||
if ($c === $b) {}',
|
||
],
|
||
'don’tChangeType' => [
|
||
'<?php
|
||
$x = 0;
|
||
$y = rand(0, 1);
|
||
$x++;
|
||
if ($x !== $y) {
|
||
chr($x);
|
||
}',
|
||
],
|
||
'don’tChangeTypeInElse' => [
|
||
'<?php
|
||
/** @var 0|string */
|
||
$x = 0;
|
||
$y = rand(0, 1) ? 0 : 1;
|
||
if ($x !== $y) {
|
||
} else {
|
||
if (!is_string($x)) {
|
||
chr($x);
|
||
}
|
||
}
|
||
|
||
/** @var int|string */
|
||
$x = 0;
|
||
if ($x !== $y) {
|
||
} else {
|
||
if (!is_string($x)) {
|
||
chr($x);
|
||
}
|
||
}',
|
||
],
|
||
'convertNullArrayKeyToEmptyString' => [
|
||
'<?php
|
||
$a = [
|
||
1 => 1,
|
||
2 => 2,
|
||
null => "hello",
|
||
];
|
||
|
||
$b = $a[""];',
|
||
'assertions' => [
|
||
'$b' => 'string',
|
||
],
|
||
],
|
||
'yodaConditionalsShouldHaveSameOutput1' => [
|
||
'<?php
|
||
class Foo {
|
||
/**
|
||
* @var array{from:bool, to:bool}
|
||
*/
|
||
protected $things = ["from" => false, "to" => false];
|
||
|
||
public function foo(string ...$things) : void {
|
||
foreach ($things as $thing) {
|
||
if ($thing !== "from" && $thing !== "to") {
|
||
continue;
|
||
}
|
||
|
||
$this->things[$thing] = !$this->things[$thing];
|
||
}
|
||
}
|
||
}
|
||
',
|
||
],
|
||
'yodaConditionalsShouldHaveSameOutput2' => [
|
||
'<?php
|
||
class Foo {
|
||
/**
|
||
* @var array{from:bool, to:bool}
|
||
*/
|
||
protected $things = ["from" => false, "to" => false];
|
||
|
||
public function foo(string ...$things) : void {
|
||
foreach ($things as $thing) {
|
||
if ("from" !== $thing && "to" !== $thing) {
|
||
continue;
|
||
}
|
||
|
||
$this->things[$thing] = !$this->things[$thing];
|
||
}
|
||
}
|
||
}
|
||
',
|
||
],
|
||
'supportSingleLiteralType' => [
|
||
'<?php
|
||
class A {
|
||
/**
|
||
* @var string
|
||
* @psalm-var "easy"
|
||
*/
|
||
private $type = "easy";
|
||
}'
|
||
],
|
||
'typecastTrueToInt' => [
|
||
'<?php
|
||
/**
|
||
* @param 0|1 $int
|
||
*/
|
||
function foo(int $int) : void {
|
||
echo (string) $int;
|
||
}
|
||
|
||
foo((int) true);',
|
||
],
|
||
'typecastFalseToInt' => [
|
||
'<?php
|
||
/**
|
||
* @param 0|1 $int
|
||
*/
|
||
function foo(int $int) : void {
|
||
echo (string) $int;
|
||
}
|
||
|
||
foo((int) false);',
|
||
],
|
||
'typecastedBoolToInt' => [
|
||
'<?php
|
||
/**
|
||
* @param 0|1 $int
|
||
*/
|
||
function foo(int $int) : void {
|
||
echo (string) $int;
|
||
}
|
||
|
||
foo((int) ((bool) 2));',
|
||
],
|
||
'notEqualToEachOther' => [
|
||
'<?php
|
||
function example(object $a, object $b): bool {
|
||
if ($a !== $b && \get_class($a) === \get_class($b)) {
|
||
return true;
|
||
}
|
||
|
||
return false;
|
||
}'
|
||
],
|
||
'numericStringValue' => [
|
||
'<?php
|
||
/** @psalm-return numeric-string */
|
||
function makeNumeric() : string {
|
||
return "12.34";
|
||
}
|
||
|
||
/** @psalm-param numeric-string $string */
|
||
function consumeNumeric(string $string) : void {
|
||
\error_log($string);
|
||
}
|
||
|
||
consumeNumeric("12.34");'
|
||
],
|
||
'resolveScalarClassConstant' => [
|
||
'<?php
|
||
class PaymentFailure {
|
||
const NO_CLIENT = "no_client";
|
||
const NO_CARD = "no_card";
|
||
}
|
||
|
||
/**
|
||
* @return PaymentFailure::NO_CARD|PaymentFailure::NO_CLIENT
|
||
*/
|
||
function something() {
|
||
if (rand(0, 1)) {
|
||
return PaymentFailure::NO_CARD;
|
||
}
|
||
|
||
return PaymentFailure::NO_CLIENT;
|
||
}
|
||
|
||
function blah(): void {
|
||
$test = something();
|
||
if ($test === PaymentFailure::NO_CLIENT) {}
|
||
}'
|
||
],
|
||
'removeNullAfterLessThanZero' => [
|
||
'<?php
|
||
function fcn(?int $val): int {
|
||
if ($val < 0) {
|
||
return $val;
|
||
}
|
||
|
||
return 5;
|
||
}',
|
||
],
|
||
'numericStringCastFromInt' => [
|
||
'<?php
|
||
/**
|
||
* @return numeric-string
|
||
*/
|
||
function makeNumStringFromInt(int $v) {
|
||
return (string) $v;
|
||
}',
|
||
],
|
||
'numericStringCastFromFloat' => [
|
||
'<?php
|
||
/**
|
||
* @return numeric-string
|
||
*/
|
||
function makeNumStringFromFloat(float $v) {
|
||
return (string) $v;
|
||
}'
|
||
],
|
||
'compareNegatedValue' => [
|
||
'<?php
|
||
$i = rand(-1, 5);
|
||
|
||
if (!($i > 0)) {
|
||
echo $i;
|
||
}',
|
||
],
|
||
'refinePositiveInt' => [
|
||
'<?php
|
||
$f = rand(0, 1) ? -1 : 1;
|
||
if ($f > 0) {}'
|
||
],
|
||
];
|
||
}
|
||
|
||
/**
|
||
* @return iterable<string,array{string,error_message:string,2?:string[],3?:bool,4?:string}>
|
||
*/
|
||
public function providerInvalidCodeParse()
|
||
{
|
||
return [
|
||
'neverEqualsType' => [
|
||
'<?php
|
||
$a = 4;
|
||
if ($a === 5) {
|
||
// do something
|
||
}',
|
||
'error_message' => 'TypeDoesNotContainType',
|
||
],
|
||
'alwaysIdenticalType' => [
|
||
'<?php
|
||
$a = 4;
|
||
if ($a === 4) {
|
||
// do something
|
||
}',
|
||
'error_message' => 'RedundantCondition',
|
||
],
|
||
'alwaysNotIdenticalType' => [
|
||
'<?php
|
||
$a = 4;
|
||
if ($a !== 5) {
|
||
// do something
|
||
}',
|
||
'error_message' => 'RedundantCondition',
|
||
],
|
||
'neverNotIdenticalType' => [
|
||
'<?php
|
||
$a = 4;
|
||
if ($a !== 4) {
|
||
// do something
|
||
}',
|
||
'error_message' => 'TypeDoesNotContainType',
|
||
],
|
||
'neverEqualsFloatType' => [
|
||
'<?php
|
||
$a = 4.0;
|
||
if ($a === 4.1) {
|
||
// do something
|
||
}',
|
||
'error_message' => 'TypeDoesNotContainType',
|
||
],
|
||
'alwaysIdenticalFloatType' => [
|
||
'<?php
|
||
$a = 4.1;
|
||
if ($a === 4.1) {
|
||
// do something
|
||
}',
|
||
'error_message' => 'RedundantCondition',
|
||
],
|
||
'alwaysNotIdenticalFloatType' => [
|
||
'<?php
|
||
$a = 4.0;
|
||
if ($a !== 4.1) {
|
||
// do something
|
||
}',
|
||
'error_message' => 'RedundantCondition',
|
||
],
|
||
'neverNotIdenticalFloatType' => [
|
||
'<?php
|
||
$a = 4.1;
|
||
if ($a !== 4.1) {
|
||
// do something
|
||
}',
|
||
'error_message' => 'TypeDoesNotContainType',
|
||
],
|
||
'ifImpossibleString' => [
|
||
'<?php
|
||
$foo = rand(0, 1) ? "bar" : "bat";
|
||
|
||
if ($foo === "baz") {}',
|
||
'error_message' => 'TypeDoesNotContainType',
|
||
],
|
||
'arrayOffsetImpossibleValue' => [
|
||
'<?php
|
||
$foo = [
|
||
"a" => 1,
|
||
"b" => 2,
|
||
];
|
||
|
||
if ($foo["a"] === 2) {}',
|
||
'error_message' => 'TypeDoesNotContainType',
|
||
],
|
||
'impossibleKeyInForeach' => [
|
||
'<?php
|
||
$foo = [
|
||
"0" => 3,
|
||
"1" => 4,
|
||
"2" => 5,
|
||
];
|
||
|
||
function takesInt(int $s) : void {}
|
||
|
||
foreach ($foo as $i => $b) {
|
||
if ($i === 3) {}
|
||
}',
|
||
'error_message' => 'TypeDoesNotContainType',
|
||
],
|
||
'impossibleValueInForeach' => [
|
||
'<?php
|
||
$foo = [
|
||
"0" => 3,
|
||
"1" => 4,
|
||
"2" => 5,
|
||
];
|
||
|
||
function takesInt(int $s) : void {}
|
||
|
||
foreach ($foo as $i => $b) {
|
||
if ($b === $i) {}
|
||
}',
|
||
'error_message' => 'TypeDoesNotContainType',
|
||
],
|
||
'invalidIntStringOffset' => [
|
||
'<?php
|
||
$foo = [
|
||
"0" => 3,
|
||
"1" => 4,
|
||
"2" => 5,
|
||
];
|
||
|
||
$a = "3";
|
||
|
||
echo $foo[$a];',
|
||
'error_message' => 'InvalidArrayOffset',
|
||
],
|
||
'noChangeToVariable' => [
|
||
'<?php
|
||
$i = 0;
|
||
|
||
$a = function() use ($i) : void {
|
||
$i++;
|
||
};
|
||
|
||
$a();
|
||
|
||
if ($i === 0) {}',
|
||
'error_message' => 'RedundantCondition',
|
||
],
|
||
'redefinedIntInIfAndImpossbleComparison' => [
|
||
'<?php
|
||
$s = rand(0, 1) ? 0 : 1;
|
||
|
||
if ($s && rand(0, 1)) {
|
||
if (rand(0, 1)) {
|
||
$s = 2;
|
||
}
|
||
}
|
||
|
||
if ($s == 3) {}',
|
||
'error_message' => 'TypeDoesNotContainType',
|
||
],
|
||
'badIfOrAssertionWithSwitch' => [
|
||
'<?php
|
||
function foo(string $s) : void {
|
||
switch ($s) {
|
||
case "a":
|
||
case "b":
|
||
case "c":
|
||
if ($s === "a" || $s === "b") {
|
||
throw new \InvalidArgumentException;
|
||
}
|
||
|
||
if ($s === "c") {}
|
||
}
|
||
}',
|
||
'error_message' => 'RedundantCondition',
|
||
],
|
||
'casedComparison' => [
|
||
'<?php
|
||
if ("C" === "c") {}',
|
||
'error_message' => 'TypeDoesNotContainType',
|
||
],
|
||
'compareValueTwice' => [
|
||
'<?php
|
||
$i = rand(-1, 5);
|
||
|
||
if ($i > 0 && $i > 0) {}',
|
||
'error_message' => 'RedundantCondition',
|
||
],
|
||
'numericStringCoerceToLiteral' => [
|
||
'<?php
|
||
/** @param "0"|"1" $s */
|
||
function foo(string $s) : void {}
|
||
|
||
function bar(string $s) : void {
|
||
if (is_numeric($s)) {
|
||
foo($s);
|
||
}
|
||
}',
|
||
'error_message' => 'ArgumentTypeCoercion'
|
||
],
|
||
];
|
||
}
|
||
}
|