mirror of
https://github.com/danog/psalm.git
synced 2024-11-27 04:45:20 +01:00
637 lines
16 KiB
PHP
637 lines
16 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\FileChecker;
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use Psalm\Config;
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use Psalm\Context;
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class ScopeTest 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 TestConfig */
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protected static $config;
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/** @var \Psalm\Checker\ProjectChecker */
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protected $project_checker;
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/**
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* @return void
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*/
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public static function setUpBeforeClass()
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{
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self::$parser = (new ParserFactory)->create(ParserFactory::PREFER_PHP7);
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self::$config = new TestConfig();
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}
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/**
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* @return void
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*/
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public function setUp()
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{
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FileChecker::clearCache();
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$this->project_checker = new \Psalm\Checker\ProjectChecker();
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$this->project_checker->setConfig(self::$config);
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}
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/**
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* @expectedException \Psalm\Exception\CodeException
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* @expectedExceptionMessage PossiblyUndefinedVariable - somefile.php:6 - Possibly undefined variable $b, first seen on line 3
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* @return void
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*/
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public function testPossiblyUndefinedVarInIf()
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{
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$stmts = self::$parser->parse('<?php
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if (rand(0,100) === 10) {
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$b = "s";
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}
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echo $b;
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');
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$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 testNewVarInIf()
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{
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$stmts = self::$parser->parse('<?php
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if (rand(0,100) === 10) {
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$badge = "hello";
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}
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else {
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$badge = "goodbye";
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}
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echo $badge;
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');
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$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 testNewVarInIfWithElseReturn()
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{
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$stmts = self::$parser->parse('<?php
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if (rand(0,100) === 10) {
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$badge = "hello";
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}
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else {
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throw new \Exception();
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}
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echo $badge;
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');
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$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 PossiblyUndefinedVariable - somefile.php:3 - Possibly undefined variable $array, first seen on line 3
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* @return void
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*/
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public function testPossiblyUndefinedArrayInIf()
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{
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$stmts = self::$parser->parse('<?php
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if (rand(0,100) === 10) {
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$array[] = "hello";
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}
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echo $array;
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');
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$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 testTryCatchVar()
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{
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$stmts = self::$parser->parse('<?php
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try {
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$worked = true;
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}
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catch (\Exception $e) {
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$worked = false;
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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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$this->assertEquals('bool', (string) $context->vars_in_scope['$worked']);
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}
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/**
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* @return void
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*/
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public function testAssignmentInIf()
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{
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$stmts = self::$parser->parse('<?php
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if ($row = (rand(0, 10) ? [5] : null)) {
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echo $row[0];
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}
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');
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$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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* @return void
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*/
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public function testNegatedAssignmentInIf()
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{
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$stmts = self::$parser->parse('<?php
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if (!($row = (rand(0, 10) ? [5] : null))) {
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// do nothing
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}
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else {
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echo $row[0];
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}
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');
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$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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* @return void
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*/
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public function testAssignInElseIf()
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{
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$stmts = self::$parser->parse('<?php
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if (rand(0, 10) > 5) {
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echo "hello";
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} elseif ($row = (rand(0, 10) ? [5] : null)) {
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echo $row[0];
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}
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');
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$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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* @return void
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*/
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public function testIfNotEqualsFalse()
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{
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$stmts = self::$parser->parse('<?php
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if (($row = rand(0,10) ? [1] : false) !== false) {
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echo $row[0];
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}
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');
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$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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* @return void
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*/
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public function testIfNotEqualsNull()
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{
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$stmts = self::$parser->parse('<?php
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if (($row = rand(0,10) ? [1] : null) !== null) {
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echo $row[0];
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}
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');
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$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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* @return void
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*/
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public function testIfNullNotEquals()
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{
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$stmts = self::$parser->parse('<?php
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if (null !== ($row = rand(0,10) ? [1] : null)) {
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echo $row[0];
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}
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');
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$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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* @return void
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*/
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public function testIfNullEquals()
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{
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$stmts = self::$parser->parse('<?php
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if (null === ($row = rand(0,10) ? [1] : null)) {
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} else {
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echo $row[0];
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}
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');
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$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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* @return void
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*/
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public function testPassByRefInIf()
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{
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$stmts = self::$parser->parse('<?php
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if (preg_match("/bad/", "badger", $matches)) {
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echo (string)$matches[0];
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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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* @return void
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*/
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public function testPassByRefInIfCheckAfter()
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{
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$stmts = self::$parser->parse('<?php
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if (!preg_match("/bad/", "badger", $matches)) {
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exit();
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}
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echo (string)$matches[0];
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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 testPassByRefInIfWithBoolean()
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{
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$stmts = self::$parser->parse('<?php
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$a = true;
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if ($a && preg_match("/bad/", "badger", $matches)) {
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echo (string)$matches[0];
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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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* @return void
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*/
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public function testPassByRefInIVarWithBoolean()
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{
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$stmts = self::$parser->parse('<?php
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$a = preg_match("/bad/", "badger", $matches) > 0;
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if ($a) {
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echo (string)$matches[1];
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}
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');
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$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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* @return void
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*/
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public function testFunctionExists()
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{
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$stmts = self::$parser->parse('<?php
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if (true && function_exists("flabble")) {
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flabble();
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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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* @return void
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*/
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public function testNestedPropertyFetchInElseif()
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{
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$stmts = self::$parser->parse('<?php
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class A {
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/** @var A|null */
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public $foo;
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public function __toString() : string {
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return "boop";
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}
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}
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$a = rand(0, 10) === 5 ? new A() : null;
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if (false) {
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}
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elseif ($a && $a->foo) {
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echo $a;
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}
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');
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$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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* @return void
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*/
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public function testGlobalReturn()
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{
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$stmts = self::$parser->parse('<?php
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$foo = "foo";
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function a() : string {
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global $foo;
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return $foo;
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}
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');
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$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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* @return void
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*/
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public function testStatic()
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{
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$stmts = self::$parser->parse('<?php
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function a() : string {
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static $foo = "foo";
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return $foo;
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}
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');
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$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 InvalidGlobal
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* @return void
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*/
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public function testInvalidGlobal()
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{
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$stmts = self::$parser->parse('<?php
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$a = "heli";
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global $a;
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');
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$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 InvalidStaticVariable
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* @return void
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*/
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public function testThisInStatic()
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{
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$stmts = self::$parser->parse('<?php
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class A {
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public static function fooFoo() {
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echo $this;
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}
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}
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');
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$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
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$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 testTwoVarLogic()
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{
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$stmts = self::$parser->parse('<?php
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$a = rand(0, 10) ? "hello" : null;
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$b = rand(0, 10) ? "goodbye" : null;
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if ($a !== null || $b !== null) {
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if ($a !== null) {
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$c = $a;
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} else {
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$c = $b;
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}
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echo strpos($c, "e");
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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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* @return void
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*/
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public function testThreeVarLogic()
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{
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$stmts = self::$parser->parse('<?php
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$a = rand(0, 10) ? "hello" : null;
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$b = rand(0, 10) ? "goodbye" : null;
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$c = rand(0, 10) ? "hello" : null;
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if ($a !== null || $b !== null || $c !== null) {
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if ($a !== null) {
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$d = $a;
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} elseif ($b !== null) {
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$d = $b;
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} else {
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$d = $c;
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}
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echo strpos($d, "e");
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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 NullArgument
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* @return void
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*/
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public function testThreeVarLogicWithChange()
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{
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$stmts = self::$parser->parse('<?php
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$a = rand(0, 10) ? "hello" : null;
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$b = rand(0, 10) ? "goodbye" : null;
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$c = rand(0, 10) ? "hello" : null;
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if ($a !== null || $b !== null || $c !== null) {
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$c = null;
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if ($a !== null) {
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$d = $a;
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} elseif ($b !== null) {
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$d = $b;
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} else {
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$d = $c;
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}
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echo strpos($d, "e");
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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 NullArgument
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* @return void
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*/
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public function testThreeVarLogicWithException()
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{
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$stmts = self::$parser->parse('<?php
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$a = rand(0, 10) ? "hello" : null;
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$b = rand(0, 10) ? "goodbye" : null;
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$c = rand(0, 10) ? "hello" : null;
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if ($a !== null || $b !== null || $c !== null) {
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if ($c !== null) {
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throw new \Exception("bad");
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}
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if ($a !== null) {
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$d = $a;
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} elseif ($b !== null) {
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$d = $b;
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} else {
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$d = $c;
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}
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echo strpos($d, "e");
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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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* @return void
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*/
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public function testNegateAssertionAndOther()
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{
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$stmts = self::$parser->parse('<?php
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$a = rand(0, 10) ? "hello" : null;
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if (rand(0, 10) > 1 && is_string($a)) {
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throw new \Exception("bad");
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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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$this->assertEquals('string|null', (string) $context->vars_in_scope['$a']);
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}
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/**
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* @return void
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*/
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public function testRepeatAssertionWithOther()
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{
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$stmts = self::$parser->parse('<?php
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$a = rand(0, 10) ? "hello" : null;
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if (rand(0, 10) > 1 || is_string($a)) {
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if (is_string($a)) {
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echo strpos("e", $a);
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}
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}
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');
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$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
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$context = new Context();
|
|
$file_checker->visitAndAnalyzeMethods($context);
|
|
$this->assertEquals('string|null', (string) $context->vars_in_scope['$a']);
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function testRefineORedType()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class A {
|
|
public function doThing() : void
|
|
{
|
|
if ($this instanceof B || $this instanceof C) {
|
|
if ($this instanceof B) {
|
|
|
|
}
|
|
}
|
|
}
|
|
}
|
|
class B extends A {}
|
|
class C extends A {}
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
|
|
$context = new Context();
|
|
$file_checker->visitAndAnalyzeMethods($context);
|
|
}
|
|
|
|
/**
|
|
* @return void
|
|
*/
|
|
public function testIntstanceOfSubtraction()
|
|
{
|
|
$stmts = self::$parser->parse('<?php
|
|
class Foo {}
|
|
class FooBar extends Foo{}
|
|
class FooBarBat extends FooBar{}
|
|
class FooMoo extends Foo{}
|
|
|
|
$a = new Foo();
|
|
|
|
if ($a instanceof FooBar && !$a instanceof FooBarBat) {
|
|
|
|
} elseif ($a instanceof FooMoo) {
|
|
|
|
}
|
|
');
|
|
|
|
$file_checker = new FileChecker('somefile.php', $this->project_checker, $stmts);
|
|
$file_checker->visitAndAnalyzeMethods();
|
|
}
|
|
}
|