mirror of
https://github.com/danog/psalm.git
synced 2024-11-27 04:45:20 +01:00
1068 lines
28 KiB
PHP
1068 lines
28 KiB
PHP
<?php
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namespace Psalm\Tests;
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use PhpParser\ParserFactory;
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use PHPUnit_Framework_TestCase;
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use Psalm\Checker\AlgebraChecker;
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use Psalm\Checker\FileChecker;
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use Psalm\Checker\ProjectChecker;
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use Psalm\Checker\TypeChecker;
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use Psalm\Clause;
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use Psalm\Config;
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use Psalm\Context;
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use Psalm\Type;
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class TypeReconciliationTest extends PHPUnit_Framework_TestCase
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{
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/** @var \PhpParser\Parser */
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protected static $parser;
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/** @var \Psalm\Checker\ProjectChecker */
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protected $project_checker;
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/** @var FileChecker */
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protected $file_checker;
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/**
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* @return void
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*/
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public static function setUpBeforeClass()
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{
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self::$parser = (new ParserFactory)->create(ParserFactory::PREFER_PHP7);
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}
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/**
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* @return void
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*/
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public function setUp()
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{
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FileChecker::clearCache();
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$this->project_checker = new ProjectChecker();
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$this->project_checker->setConfig(new TestConfig());
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$this->file_checker = new FileChecker('somefile.php', $this->project_checker);
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$this->file_checker->context = new Context();
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}
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/**
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* @return void
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*/
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public function testNotNull()
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{
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$this->assertEquals(
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'MyObject',
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(string) TypeChecker::reconcileTypes('!null', Type::parseString('MyObject'), null, $this->file_checker)
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);
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$this->assertEquals(
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'MyObject',
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(string) TypeChecker::reconcileTypes('!null', Type::parseString('MyObject|null'), null, $this->file_checker)
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);
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$this->assertEquals(
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'MyObject|false',
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(string) TypeChecker::reconcileTypes('!null', Type::parseString('MyObject|false'), null, $this->file_checker)
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);
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$this->assertEquals(
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'mixed',
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(string) TypeChecker::reconcileTypes('!null', Type::parseString('mixed'), null, $this->file_checker)
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);
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}
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/**
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* @return void
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*/
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public function testNotEmpty()
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{
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$this->assertEquals(
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'MyObject',
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(string) TypeChecker::reconcileTypes('!empty', Type::parseString('MyObject'), null, $this->file_checker)
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);
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$this->assertEquals(
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'MyObject',
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(string) TypeChecker::reconcileTypes('!empty', Type::parseString('MyObject|null'), null, $this->file_checker)
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);
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$this->assertEquals(
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'MyObject',
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(string) TypeChecker::reconcileTypes('!empty', Type::parseString('MyObject|false'), null, $this->file_checker)
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);
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$this->assertEquals(
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'mixed',
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(string) TypeChecker::reconcileTypes('!empty', Type::parseString('mixed'), null, $this->file_checker)
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);
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// @todo in the future this should also work
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/*
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$this->assertEquals(
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'MyObject|true',
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(string) TypeChecker::reconcileTypes('!empty', Type::parseString('MyObject|bool'))
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);
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*/
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}
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/**
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* @return void
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*/
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public function testNull()
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{
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$this->assertEquals(
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'null',
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(string) TypeChecker::reconcileTypes('null', Type::parseString('MyObject|null'), null, $this->file_checker)
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);
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$this->assertEquals(
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'null',
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(string) TypeChecker::reconcileTypes('null', Type::parseString('mixed'), null, $this->file_checker)
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);
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}
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/**
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* @return void
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*/
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public function testEmpty()
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{
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$this->assertEquals(
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'null',
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(string) TypeChecker::reconcileTypes('empty', Type::parseString('MyObject'), null, $this->file_checker)
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);
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$this->assertEquals(
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'false',
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(string) TypeChecker::reconcileTypes('empty', Type::parseString('MyObject|false'), null, $this->file_checker)
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);
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$this->assertEquals(
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'false',
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(string) TypeChecker::reconcileTypes('empty', Type::parseString('MyObject|bool'), null, $this->file_checker)
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);
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$this->assertEquals(
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'mixed',
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(string) TypeChecker::reconcileTypes('empty', Type::parseString('mixed'), null, $this->file_checker)
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);
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/** @var Type\Union */
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$reconciled = TypeChecker::reconcileTypes('empty', Type::parseString('bool'), null, $this->file_checker);
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$this->assertEquals('false', (string) $reconciled);
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$this->assertInstanceOf('Psalm\Type\Atomic', $reconciled->types['false']);
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}
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/**
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* @return void
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*/
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public function testNotMyObject()
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{
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$this->assertEquals(
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'bool',
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(string) TypeChecker::reconcileTypes('!MyObject', Type::parseString('MyObject|bool'), null, $this->file_checker)
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);
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$this->assertEquals(
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'null',
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(string) TypeChecker::reconcileTypes('!MyObject', Type::parseString('MyObject|null'), null, $this->file_checker)
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);
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$this->assertEquals(
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'MyObjectB',
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(string) TypeChecker::reconcileTypes('!MyObjectA', Type::parseString('MyObjectA|MyObjectB'), null, $this->file_checker)
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);
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}
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/**
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* @return void
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*/
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public function testMyObject()
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{
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$this->assertEquals(
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'MyObject',
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(string) TypeChecker::reconcileTypes('MyObject', Type::parseString('MyObject|bool'), null, $this->file_checker)
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);
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$this->assertEquals(
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'MyObjectA',
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(string) TypeChecker::reconcileTypes('MyObjectA', Type::parseString('MyObjectA|MyObjectB'), null, $this->file_checker)
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);
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}
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/**
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* @return void
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*/
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public function testArray()
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{
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$this->assertEquals(
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'array<mixed, mixed>',
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(string) TypeChecker::reconcileTypes('array', Type::parseString('array|null'), null, $this->file_checker)
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);
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}
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/**
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* @return void
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*/
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public function test2DArray()
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{
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$this->assertEquals(
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'array<mixed, array<mixed, string>>',
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(string) TypeChecker::reconcileTypes('array', Type::parseString('array<array<string>>|null'), null, $this->file_checker)
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);
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}
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/**
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* @return void
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*/
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public function testArrayContains()
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{
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$this->assertTrue(
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TypeChecker::isContainedBy(
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Type::parseString('array<string>'),
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Type::parseString('array'),
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$this->file_checker
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)
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);
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$this->assertTrue(
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TypeChecker::isContainedBy(
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Type::parseString('array<Exception>'),
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Type::parseString('array'),
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$this->file_checker
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)
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);
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}
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/**
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* @return void
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*/
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public function testUnionContains()
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{
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$this->assertTrue(
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TypeChecker::isContainedBy(
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Type::parseString('string'),
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Type::parseString('string|false'),
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$this->file_checker
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)
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);
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$this->assertTrue(
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TypeChecker::isContainedBy(
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Type::parseString('false'),
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Type::parseString('string|false'),
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$this->file_checker
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)
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);
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}
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/**
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* @return void
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*/
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public function testNumeric()
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{
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$this->assertEquals(
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'string',
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(string) TypeChecker::reconcileTypes('numeric', Type::parseString('string'), null, $this->file_checker)
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);
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}
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/**
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* @return void
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*/
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public function testNegateFormula()
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{
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$formula = [
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new Clause(['$a' => ['!empty']])
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];
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$negated_formula = AlgebraChecker::negateFormula($formula);
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$this->assertSame(1, count($negated_formula));
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$this->assertSame(['$a' => ['empty']], $negated_formula[0]->possibilities);
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$formula = [
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new Clause(['$a' => ['!empty'], '$b' => ['!empty']])
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];
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$negated_formula = AlgebraChecker::negateFormula($formula);
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$this->assertSame(2, count($negated_formula));
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$this->assertSame(['$a' => ['empty']], $negated_formula[0]->possibilities);
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$this->assertSame(['$b' => ['empty']], $negated_formula[1]->possibilities);
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$formula = [
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new Clause(['$a' => ['!empty']]),
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new Clause(['$b' => ['!empty']]),
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];
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$negated_formula = AlgebraChecker::negateFormula($formula);
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$this->assertSame(1, count($negated_formula));
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$this->assertSame(['$a' => ['empty'], '$b' => ['empty']], $negated_formula[0]->possibilities);
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$formula = [
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new Clause(['$a' => ['int', 'string'], '$b' => ['!empty']])
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];
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$negated_formula = AlgebraChecker::negateFormula($formula);
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$this->assertSame(3, count($negated_formula));
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$this->assertSame(['$a' => ['!int']], $negated_formula[0]->possibilities);
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$this->assertSame(['$a' => ['!string']], $negated_formula[1]->possibilities);
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$this->assertSame(['$b' => ['empty']], $negated_formula[2]->possibilities);
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}
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/**
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* @return void
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*/
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public function testContainsClause()
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{
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$this->assertTrue(
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(new Clause(
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[
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'$a' => ['!empty'],
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'$b' => ['!empty']
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]
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))->contains(
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new Clause(
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[
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'$a' => ['!empty']
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]
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)
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)
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);
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$this->assertFalse(
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(new Clause(
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[
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'$a' => ['!empty']
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]
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))->contains(
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new Clause(
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[
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'$a' => ['!empty'],
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'$b' => ['!empty']
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]
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)
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)
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);
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}
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/**
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* @return void
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*/
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public function testSimplifyCNF()
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{
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$formula = [
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new Clause(['$a' => ['!empty']]),
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new Clause(['$a' => ['empty'], '$b' => ['empty']])
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];
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$simplified_formula = AlgebraChecker::simplifyCNF($formula);
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$this->assertSame(2, count($simplified_formula));
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$this->assertSame(['$a' => ['!empty']], $simplified_formula[0]->possibilities);
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$this->assertSame(['$b' => ['empty']], $simplified_formula[1]->possibilities);
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}
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/**
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* @expectedException \Psalm\Exception\CodeException
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* @expectedExceptionMessage TypeDoesNotContainNull
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* @return void
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*/
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public function testMakeNonNullableNull()
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{
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$stmts = self::$parser->parse('<?php
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class A { }
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$a = new A();
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if ($a === null) {
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}
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');
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$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
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$context = new Context();
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$file_checker->visitAndAnalyzeMethods($context);
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}
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/**
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* @expectedException \Psalm\Exception\CodeException
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* @expectedExceptionMessage TypeDoesNotContainType
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* @return void
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*/
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public function testMakeInstanceOfThingInElseif()
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{
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$stmts = self::$parser->parse('<?php
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class A { }
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class B { }
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class C { }
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$a = rand(0, 10) > 5 ? new A() : new B();
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if ($a instanceof A) {
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} elseif ($a instanceof C) {
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}
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');
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$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
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$context = new Context();
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$file_checker->visitAndAnalyzeMethods($context);
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}
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/**
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* @expectedException \Psalm\Exception\CodeException
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* @expectedExceptionMessage TypeDoesNotContainType
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* @return void
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*/
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public function testFunctionValueIsNotType()
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{
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$stmts = self::$parser->parse('<?php
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if (json_last_error() === "5") { }
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');
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$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
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$file_checker->visitAndAnalyzeMethods();
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}
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/**
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* @expectedException \Psalm\Exception\CodeException
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* @expectedExceptionMessage TypeDoesNotContainType
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* @return void
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*/
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public function testStringIsNotInt()
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{
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$stmts = self::$parser->parse('<?php
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if (5 === "5") { }
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');
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$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
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$file_checker->visitAndAnalyzeMethods();
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}
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/**
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* @expectedException \Psalm\Exception\CodeException
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* @expectedExceptionMessage TypeDoesNotContainNull
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* @return void
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*/
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public function testStringIsNotNull()
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{
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$stmts = self::$parser->parse('<?php
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if (5 === null) { }
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');
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$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
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$file_checker->visitAndAnalyzeMethods();
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}
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/**
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* @return void
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*/
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public function testIntIsMixed()
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{
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$stmts = self::$parser->parse('<?php
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function foo($a) : void {
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$b = 5;
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if ($b === $a) { }
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}
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');
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$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
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$file_checker->visitAndAnalyzeMethods();
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}
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/**
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* @expectedException \Psalm\Exception\CodeException
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* @expectedExceptionMessage TypeDoesNotContainType
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* @return void
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*/
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public function testStringIsNotFalse()
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{
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$stmts = self::$parser->parse('<?php
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if (5 === false) { }
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');
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$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
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$file_checker->visitAndAnalyzeMethods();
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}
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/**
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* @expectedException \Psalm\Exception\CodeException
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* @expectedExceptionMessage FailedTypeResolution
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* @return void
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*/
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public function testFailedTypeResolution()
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{
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$stmts = self::$parser->parse('<?php
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class A { }
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/**
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* @return void
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*/
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function fooFoo(A $a) {
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if ($a instanceof A) {
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}
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}
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');
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$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
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$context = new Context();
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$file_checker->visitAndAnalyzeMethods($context);
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}
|
|
|
|
/**
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* @expectedException \Psalm\Exception\CodeException
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* @expectedExceptionMessage FailedTypeResolution
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* @return void
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*/
|
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public function testFailedTypeResolutionWithDocblock()
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{
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$stmts = self::$parser->parse('<?php
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class A { }
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/**
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* @param A $a
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* @return void
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*/
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function fooFoo(A $a) {
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if ($a instanceof A) {
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}
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}
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');
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$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
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$context = new Context();
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$file_checker->visitAndAnalyzeMethods($context);
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}
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/**
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* @return void
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*/
|
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public function testTypeResolutionFromDocblock()
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{
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$stmts = self::$parser->parse('<?php
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class A { }
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/**
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* @param A $a
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* @return void
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*/
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function fooFoo($a) {
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if ($a instanceof A) {
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}
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}
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');
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$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
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$context = new Context();
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$file_checker->visitAndAnalyzeMethods($context);
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}
|
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|
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/**
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* @return void
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*/
|
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public function testArrayTypeResolutionFromDocblock()
|
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{
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$stmts = self::$parser->parse('<?php
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/**
|
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* @param string[] $strs
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* @return void
|
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*/
|
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function foo(array $strs) {
|
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foreach ($strs as $str) {
|
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if (is_string($str)) {} // Issue emitted here
|
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}
|
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}
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');
|
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|
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$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
|
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$context = new Context();
|
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$file_checker->visitAndAnalyzeMethods($context);
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function testTypeResolutionFromDocblockInside()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
/**
|
|
* @param int $length
|
|
* @return void
|
|
*/
|
|
function foo($length) {
|
|
if (!is_int($length)) {
|
|
if (is_numeric($length)) {
|
|
}
|
|
}
|
|
}
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
|
|
$context = new Context();
|
|
$file_checker->visitAndAnalyzeMethods($context);
|
|
}
|
|
|
|
/**
|
|
* @expectedException \Psalm\Exception\CodeException
|
|
* @expectedExceptionMessage FailedTypeResolution
|
|
* @return void
|
|
*/
|
|
public function testTypeResolutionFromDocblockAndInstanceof()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class A { }
|
|
|
|
/**
|
|
* @param A $a
|
|
* @return void
|
|
*/
|
|
function fooFoo($a) {
|
|
if ($a instanceof A) {
|
|
if ($a instanceof A) {
|
|
}
|
|
}
|
|
}
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
|
|
$context = new Context();
|
|
$file_checker->visitAndAnalyzeMethods($context);
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function testNotInstanceOf()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class A { }
|
|
|
|
class B extends A { }
|
|
|
|
$out = null;
|
|
|
|
if ($a instanceof B) {
|
|
// do something
|
|
}
|
|
else {
|
|
$out = $a;
|
|
}
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
|
|
$context = new Context();
|
|
$context->vars_in_scope['$a'] = Type::parseString('A');
|
|
$file_checker->visitAndAnalyzeMethods($context);
|
|
$this->assertEquals('null|A', (string) $context->vars_in_scope['$out']);
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function testNotInstanceOfProperty()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class B { }
|
|
|
|
class C extends B { }
|
|
|
|
class A {
|
|
/** @var B */
|
|
public $foo;
|
|
|
|
public function __construct() {
|
|
$this->foo = new B();
|
|
}
|
|
}
|
|
|
|
$a = new A();
|
|
|
|
$out = null;
|
|
|
|
if ($a->foo instanceof C) {
|
|
// do something
|
|
}
|
|
else {
|
|
$out = $a->foo;
|
|
}
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
|
|
$context = new Context();
|
|
$context->vars_in_scope['$a'] = Type::parseString('A');
|
|
$file_checker->visitAndAnalyzeMethods($context);
|
|
$this->assertEquals('null|B', (string) $context->vars_in_scope['$out']);
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function testNotInstanceOfPropertyElseif()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class B { }
|
|
|
|
class C extends B { }
|
|
|
|
class A {
|
|
/** @var string|B */
|
|
public $foo = "";
|
|
}
|
|
|
|
$out = null;
|
|
|
|
if (is_string($a->foo)) {
|
|
|
|
}
|
|
elseif ($a->foo instanceof C) {
|
|
// do something
|
|
}
|
|
else {
|
|
$out = $a->foo;
|
|
}
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
|
|
$context = new Context();
|
|
$context->vars_in_scope['$a'] = Type::parseString('A');
|
|
$file_checker->visitAndAnalyzeMethods($context);
|
|
$this->assertEquals('null|B', (string) $context->vars_in_scope['$out']);
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function testTypeArguments()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
$a = min(0, 1);
|
|
$b = min([0, 1]);
|
|
$c = min("a", "b");
|
|
$d = min(1, 2, 3, 4);
|
|
$e = min(1, 2, 3, 4, 5);
|
|
sscanf("10:05:03", "%d:%d:%d", $hours, $minutes, $seconds);
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
|
|
$context = new Context();
|
|
$file_checker->visitAndAnalyzeMethods($context);
|
|
$this->assertEquals('int', (string) $context->vars_in_scope['$a']);
|
|
$this->assertEquals('int', (string) $context->vars_in_scope['$b']);
|
|
$this->assertEquals('string', (string) $context->vars_in_scope['$c']);
|
|
$this->assertEquals('string', (string)$context->vars_in_scope['$hours']);
|
|
$this->assertEquals('string', (string)$context->vars_in_scope['$minutes']);
|
|
$this->assertEquals('string', (string)$context->vars_in_scope['$seconds']);
|
|
}
|
|
|
|
/**
|
|
* @expectedException \Psalm\Exception\CodeException
|
|
* @expectedExceptionMessage TypeDoesNotContainType
|
|
* @return void
|
|
*/
|
|
public function testTypeTransformation()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
$a = "5";
|
|
|
|
if (is_numeric($a)) {
|
|
if (is_int($a)) {
|
|
echo $a;
|
|
}
|
|
}
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
|
|
$context = new Context();
|
|
$file_checker->visitAndAnalyzeMethods($context);
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function testTypeRefinementWithIsNumeric()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
/** @return void */
|
|
function fooFoo(string $a) {
|
|
if (is_numeric($a)) { }
|
|
}
|
|
|
|
$b = rand(0, 1) ? 5 : false;
|
|
if (is_numeric($b)) { }
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
|
|
$file_checker->visitAndAnalyzeMethods();
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function testTypeRefinementWithIsNumericAndIsString()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
/**
|
|
* @param mixed $a
|
|
* @return void
|
|
*/
|
|
function foo ($a) {
|
|
if (is_numeric($a)) {
|
|
if (is_string($a)) {
|
|
}
|
|
}
|
|
}
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
|
|
$file_checker->visitAndAnalyzeMethods();
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function testUpdateMultipleIssetVars()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
/** @return void **/
|
|
function foo(string $s) {}
|
|
|
|
$a = rand(0, 1) ? ["hello"] : null;
|
|
if (isset($a[0])) {
|
|
foo($a[0]);
|
|
}
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
|
|
$file_checker->visitAndAnalyzeMethods();
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function testUpdateMultipleIssetVarsWithVariableOffset()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
/** @return void **/
|
|
function foo(string $s) {}
|
|
|
|
$a = rand(0, 1) ? ["hello"] : null;
|
|
$b = 0;
|
|
if (isset($a[$b])) {
|
|
foo($a[$b]);
|
|
}
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
|
|
$file_checker->visitAndAnalyzeMethods();
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function testRemoveEmptyArray()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
$arr_or_string = [];
|
|
|
|
if (rand(0, 1)) {
|
|
$arr_or_string = "hello";
|
|
}
|
|
|
|
/** @return void **/
|
|
function foo(string $s) {}
|
|
|
|
if (!empty($arr_or_string)) {
|
|
foo($arr_or_string);
|
|
}
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
|
|
$file_checker->visitAndAnalyzeMethods();
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function testInstanceOfSubtypes()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
abstract class A {}
|
|
class B extends A {}
|
|
|
|
abstract class C {}
|
|
class D extends C {}
|
|
|
|
function makeA(): A {
|
|
return new B();
|
|
}
|
|
|
|
function makeC(): C {
|
|
return new D();
|
|
}
|
|
|
|
$a = rand(0, 1) ? makeA() : makeC();
|
|
|
|
if ($a instanceof B || $a instanceof D) { }
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
|
|
$file_checker->visitAndAnalyzeMethods();
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function testEmptyArrayReconciliationThenIf()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
/**
|
|
* @param string|string[] $a
|
|
*/
|
|
function foo($a) : string {
|
|
if (is_string($a)) {
|
|
return $a;
|
|
} elseif (empty($a)) {
|
|
return "goodbye";
|
|
}
|
|
|
|
if (isset($a[0])) {
|
|
return $a[0];
|
|
};
|
|
|
|
return "not found";
|
|
}
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
|
|
$file_checker->visitAndAnalyzeMethods();
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function testEmptyStringReconciliationThenIf()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
/**
|
|
* @param Exception|string|string[] $a
|
|
*/
|
|
function foo($a) : string {
|
|
if (is_array($a)) {
|
|
return "hello";
|
|
} elseif (empty($a)) {
|
|
return "goodbye";
|
|
}
|
|
|
|
if (is_string($a)) {
|
|
return $a;
|
|
};
|
|
|
|
return "an exception";
|
|
}
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
|
|
$file_checker->visitAndAnalyzeMethods();
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function testEmptyExceptionReconciliationAfterIf()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
/**
|
|
* @param Exception|null $a
|
|
*/
|
|
function foo($a) : string {
|
|
if ($a && $a->getMessage() === "hello") {
|
|
return "hello";
|
|
} elseif (empty($a)) {
|
|
return "goodbye";
|
|
}
|
|
|
|
return $a->getMessage();
|
|
}
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
|
|
$file_checker->visitAndAnalyzeMethods();
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function testIgnoreNullCheckAndMaintainNullValue()
|
|
{
|
|
Config::getInstance()->setCustomErrorLevel('FailedTypeResolution', Config::REPORT_SUPPRESS);
|
|
|
|
$stmts = self::$parser->parse('<?php
|
|
$a = null;
|
|
if ($a !== null) { }
|
|
$b = $a;
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
|
|
$context = new Context();
|
|
$file_checker->visitAndAnalyzeMethods($context);
|
|
$this->assertEquals('null', (string) $context->vars_in_scope['$b']);
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function testIgnoreNullCheckAndMaintainNullableValue()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
$a = rand(0, 1) ? 5 : null;
|
|
if ($a !== null) { }
|
|
$b = $a;
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
|
|
$context = new Context();
|
|
$file_checker->visitAndAnalyzeMethods($context);
|
|
$this->assertEquals('int|null', (string) $context->vars_in_scope['$b']);
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function testTernaryByRefVar()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
function foo() : void {
|
|
$b = null;
|
|
$c = rand(0, 1) ? bar($b) : null;
|
|
if (is_int($b)) { }
|
|
}
|
|
function bar(?int &$a) : void {
|
|
$a = 5;
|
|
}
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
|
|
$context = new Context();
|
|
$file_checker->visitAndAnalyzeMethods($context);
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function testTernaryByRefVarInConditional()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
function foo() : void {
|
|
$b = null;
|
|
if (rand(0, 1) || bar($b)) {
|
|
if (is_int($b)) { }
|
|
}
|
|
}
|
|
function bar(?int &$a) : void {
|
|
$a = 5;
|
|
}
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
|
|
$context = new Context();
|
|
$file_checker->visitAndAnalyzeMethods($context);
|
|
}
|
|
}
|