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psalm/tests/PropertyTypeTest.php

1025 lines
32 KiB
PHP

<?php
namespace Psalm\Tests;
use Psalm\Checker\FileChecker;
use Psalm\Config;
class PropertyTypeTest extends TestCase
{
use Traits\FileCheckerInvalidCodeParseTestTrait;
use Traits\FileCheckerValidCodeParseTestTrait;
/**
* @expectedException \Psalm\Exception\CodeException
* @expectedExceptionMessage InvalidReturnStatement
*
* @return void
*/
public function testForgetPropertyAssignments()
{
Config::getInstance()->remember_property_assignments_after_call = false;
$this->addFile(
'somefile.php',
'<?php
class X {
/** @var ?int **/
private $x;
public function getX(): int {
if ($this->x === null) {
$this->x = 0;
}
$this->modifyX();
return $this->x;
}
private function modifyX(): void {
$this->x = null;
}
}'
);
$file_checker = new FileChecker('somefile.php', $this->project_checker);
$file_checker->visitAndAnalyzeMethods();
}
/**
* @return array
*/
public function providerFileCheckerValidCodeParse()
{
return [
'newVarInIf' => [
'<?php
class A {
/**
* @var mixed
*/
public $foo;
/** @return void */
public function barBar()
{
if (rand(0,10) === 5) {
$this->foo = [];
}
if (!is_array($this->foo)) {
// do something
}
}
}',
],
'propertyWithoutTypeSuppressingIssue' => [
'<?php
class A {
public $foo;
}
$a = (new A)->foo;',
'assertions' => [],
'error_levels' => [
'MissingPropertyType',
'MixedAssignment',
],
],
'propertyWithoutTypeSuppressingIssueAndAssertingNull' => [
'<?php
class A {
/** @return void */
function foo() {
$boop = $this->foo === null && rand(0,1);
echo $this->foo->baz;
}
}',
'assertions' => [],
'error_levels' => [
'UndefinedThisPropertyFetch',
'MixedAssignment',
'MixedMethodCall',
'MixedPropertyFetch',
],
],
'sharedPropertyInIf' => [
'<?php
class A {
/** @var int */
public $foo = 0;
}
class B {
/** @var string */
public $foo = "";
}
$a = rand(0, 10) ? new A() : (rand(0, 10) ? new B() : null);
$b = null;
if ($a instanceof A || $a instanceof B) {
$b = $a->foo;
}',
'assertions' => [
'$b' => 'null|int|string',
],
],
'sharedPropertyInElseIf' => [
'<?php
class A {
/** @var int */
public $foo = 0;
}
class B {
/** @var string */
public $foo = "";
}
$a = rand(0, 10) ? new A() : new B();
$b = null;
if (rand(0, 10) === 4) {
// do nothing
}
elseif ($a instanceof A || $a instanceof B) {
$b = $a->foo;
}',
'assertions' => [
'$b' => 'null|int|string',
],
],
'nullablePropertyCheck' => [
'<?php
class A {
/** @var string */
public $aa = "";
}
class B {
/** @var A|null */
public $bb;
}
$b = rand(0, 10) ? new A() : new B();
if ($b instanceof B && isset($b->bb) && $b->bb->aa === "aa") {
echo $b->bb->aa;
}',
],
'nullablePropertyAfterGuard' => [
'<?php
class A {
/** @var string|null */
public $aa;
}
$a = new A();
if (!$a->aa) {
$a->aa = "hello";
}
echo substr($a->aa, 1);',
],
'nullableStaticPropertyWithIfCheck' => [
'<?php
class A {
/** @var A|null */
public static $fooFoo;
public static function getFoo() : A {
if (!self::$fooFoo) {
self::$fooFoo = new A();
}
return self::$fooFoo;
}
}',
],
'reflectionProperties' => [
'<?php
class Foo {
}
$a = new \ReflectionMethod("Foo", "__construct");
echo $a->name . " - " . $a->class;',
],
'grandparentReflectedProperties' => [
'<?php
$a = new DOMElement("foo");
$owner = $a->ownerDocument;',
'assertions' => [
'$owner' => 'DOMDocument',
],
],
'goodArrayProperties' => [
'<?php
interface I1 {}
class A1 implements I1{}
class B1 implements I1 {}
class C1 {
/** @var array<I1> */
public $is = [];
}
$c = new C1;
$c->is = [new A1];
$c->is = [new A1, new A1];
$c->is = [new A1, new B1];',
'assertions' => [],
'error_levels' => ['MixedAssignment'],
],
'issetPropertyDoesNotExist' => [
'<?php
class A {
}
$a = new A();
if (isset($a->bar)) {
}',
],
'notSetInConstructorButHasDefault' => [
'<?php
class A {
/** @var int */
public $a = 0;
public function __construct() { }
}',
],
'propertySetInPrivateMethod' => [
'<?php
class A {
/** @var int */
public $a;
public function __construct() {
$this->foo();
}
private function foo() : void {
$this->a = 5;
}
}',
],
'definedInTraitSetInConstructor' => [
'<?php
trait A {
/** @var string **/
public $a;
}
class B {
use A;
public function __construct() {
$this->a = "hello";
}
}',
],
'propertySetInNestedPrivateMethod' => [
'<?php
class A {
/** @var int */
public $a;
public function __construct() {
$this->foo();
}
private function foo() : void {
$this->bar();
}
private function bar() : void {
$this->a = 5;
}
}',
],
'propertyArrayIssetAssertion' => [
'<?php
function bar(string $s) : void { }
class A {
/** @var array<string, string> */
public $a = [];
private function foo() : void {
if (isset($this->a["hello"])) {
bar($this->a["hello"]);
}
}
}',
],
'propertyArrayIssetAssertionWithVariableOffset' => [
'<?php
function bar(string $s) : void { }
class A {
/** @var array<string, string> */
public $a = [];
private function foo() : void {
$b = "hello";
if (!isset($this->a[$b])) {
return;
}
bar($this->a[$b]);
}
}',
],
'staticPropertyArrayIssetAssertionWithVariableOffset' => [
'<?php
function bar(string $s) : void { }
class A {
/** @var array<string, string> */
public static $a = [];
}
function foo() : void {
$b = "hello";
if (!isset(A::$a[$b])) {
return;
}
bar(A::$a[$b]);
}',
],
'staticPropertyArrayIssetAssertionWithVariableOffsetAndElse' => [
'<?php
function bar(string $s) : void { }
class A {
/** @var array<string, string> */
public static $a = [];
}
function foo() : void {
$b = "hello";
if (!isset(A::$a[$b])) {
$g = "bar";
} else {
bar(A::$a[$b]);
$g = "foo";
}
bar($g);
}',
],
'traitConstructor' => [
'<?php
trait T {
/** @var string **/
public $foo;
public function __construct() {
$this->foo = "hello";
}
}
class A {
use T;
}',
],
'abstractClassWithNoConstructor' => [
'<?php
abstract class A {
/** @var string */
public $foo;
}',
],
'abstractClassConstructorAndChildConstructor' => [
'<?php
abstract class A {
/** @var string */
public $foo;
public function __construct() {
$this->foo = "";
}
}
class B extends A {
public function __construct() {
parent::__construct();
}
}',
],
'abstractClassConstructorAndImplicitChildConstructor' => [
'<?php
abstract class A {
/** @var string */
public $foo;
public function __construct(int $bar) {
$this->foo = (string)$bar;
}
}
class B extends A {}
class E extends \Exception{}',
],
'notSetInEmptyConstructor' => [
'<?php
/** @psalm-suppress PropertyNotSetInConstructor */
class A {
/** @var int */
public $a;
public function __construct() { }
}',
],
'extendsClassWithPrivateConstructorSet' => [
'<?php
namespace Q;
class Base
{
/**
* @var string
*/
private $aString;
public function __construct()
{
$this->aString = "aa";
echo($this->aString);
}
}
class Descendant extends Base
{
/**
* @var bool
*/
private $aBool;
public function __construct()
{
parent::__construct();
$this->aBool = true;
}
}',
],
'extendsClassWithPrivateAndException' => [
'<?php
abstract class A extends \Exception {
/** @var string **/
private $p;
/** @param string $p **/
final public function __construct($p) {
$this->p = $p;
}
}
final class B extends A {}',
],
'setInAbstractMethod' => [
'<?php
interface I {
public function foo() : void;
}
abstract class A implements I {
/** @var string */
public $bar;
public function __construct() {
$this->foo();
}
}
class B extends A {
public function foo() : void
{
$this->bar = "hello";
}
}',
'assertions' => [],
'error_levels' => [
'PropertyNotSetInConstructor' => Config::REPORT_INFO,
],
],
'setInFinalMethod' => [
'<?php
class C
{
/**
* @var string
*/
private $a;
/**
* @var string
*/
private $b;
/**
* @param string[] $opts
* @psalm-param array{a:string,b:string} $opts
*/
public function __construct(array $opts)
{
$this->setOptions($opts);
}
/**
* @param string[] $opts
* @psalm-param array{a:string,b:string} $opts
*/
final public function setOptions(array $opts): void
{
$this->a = $opts["a"] ?? "defaultA";
$this->b = $opts["b"] ?? "defaultB";
}
}',
],
'setInFinalClass' => [
'<?php
final class C
{
/**
* @var string
*/
private $a;
/**
* @var string
*/
private $b;
/**
* @param string[] $opts
* @psalm-param array{a:string,b:string} $opts
*/
public function __construct(array $opts)
{
$this->setOptions($opts);
}
/**
* @param string[] $opts
* @psalm-param array{a:string,b:string} $opts
*/
public function setOptions(array $opts): void
{
$this->a = $opts["a"] ?? "defaultA";
$this->b = $opts["b"] ?? "defaultB";
}
}',
],
'selfPropertyType' => [
'<?php
class Node
{
/** @var self|null */
public $next;
public function __construct() {
if (rand(0, 1)) {
$this->next = new Node();
}
}
}
$node = new Node();
$next = $node->next',
'assertions' => [
'$next' => 'Node|null',
],
],
'perPropertySuppress' => [
'<?php
class A {
/**
* @var int
* @psalm-suppress PropertyNotSetInConstructor
*/
public $a;
public function __construct() { }
}',
],
];
}
/**
* @return array
*/
public function providerFileCheckerInvalidCodeParse()
{
return [
'undefinedPropertyAssignment' => [
'<?php
class A {
}
(new A)->foo = "cool";',
'error_message' => 'UndefinedPropertyAssignment',
],
'undefinedPropertyFetch' => [
'<?php
class A {
}
echo (new A)->foo;',
'error_message' => 'UndefinedPropertyFetch',
],
'undefinedThisPropertyAssignment' => [
'<?php
class A {
public function fooFoo() : void {
$this->foo = "cool";
}
}',
'error_message' => 'UndefinedThisPropertyAssignment',
],
'undefinedThisPropertyFetch' => [
'<?php
class A {
public function fooFoo() : void {
echo $this->foo;
}
}',
'error_message' => 'UndefinedThisPropertyFetch',
],
'missingPropertyType' => [
'<?php
class A {
public $foo;
public function assignToFoo() : void {
$this->foo = 5;
}
}',
'error_message' => 'MissingPropertyType - src/somefile.php:3 - Property A::$foo does not have a ' .
'declared type - consider null|int',
],
'missingPropertyTypeWithConstructorInit' => [
'<?php
class A {
public $foo;
public function __construct() : void {
$this->foo = 5;
}
}',
'error_message' => 'MissingPropertyType - src/somefile.php:3 - Property A::$foo does not have a ' .
'declared type - consider int',
],
'missingPropertyTypeWithConstructorInitAndNull' => [
'<?php
class A {
public $foo;
public function __construct() : void {
$this->foo = 5;
}
public function makeNull() : void {
$this->foo = null;
}
}',
'error_message' => 'MissingPropertyType - src/somefile.php:3 - Property A::$foo does not have a ' .
'declared type - consider null|int',
],
'missingPropertyTypeWithConstructorInitAndNullDefault' => [
'<?php
class A {
public $foo = null;
public function __construct() : void {
$this->foo = 5;
}
}',
'error_message' => 'MissingPropertyType - src/somefile.php:3 - Property A::$foo does not have a ' .
'declared type - consider int|null',
],
'badAssignment' => [
'<?php
class A {
/** @var string */
public $foo;
public function barBar() : void
{
$this->foo = 5;
}
}',
'error_message' => 'InvalidPropertyAssignment',
],
'badAssignmentAsWell' => [
'<?php
$a = "hello";
$a->foo = "bar";',
'error_message' => 'InvalidPropertyAssignment',
],
'badFetch' => [
'<?php
$a = "hello";
echo $a->foo;',
'error_message' => 'InvalidPropertyFetch',
],
'possiblyBadFetch' => [
'<?php
$a = rand(0, 5) > 3 ? "hello" : new stdClass;
echo $a->foo;',
'error_message' => 'PossiblyInvalidPropertyFetch',
],
'mixedPropertyFetch' => [
'<?php
class Foo {
/** @var string */
public $foo = "";
}
/** @var mixed */
$a = (new Foo());
echo $a->foo;',
'error_message' => 'MixedPropertyFetch',
'error_levels' => [
'MissingPropertyType',
'MixedAssignment',
],
],
'mixedPropertyAssignment' => [
'<?php
class Foo {
/** @var string */
public $foo = "";
}
/** @var mixed */
$a = (new Foo());
$a->foo = "hello";',
'error_message' => 'MixedPropertyAssignment',
'error_levels' => [
'MissingPropertyType',
'MixedAssignment',
],
],
'possiblyNullablePropertyAssignment' => [
'<?php
class Foo {
/** @var string */
public $foo = "";
}
$a = rand(0, 10) ? new Foo() : null;
$a->foo = "hello";',
'error_message' => 'PossiblyNullPropertyAssignment',
],
'nullablePropertyAssignment' => [
'<?php
$a = null;
$a->foo = "hello";',
'error_message' => 'NullPropertyAssignment',
],
'possiblyNullablePropertyFetch' => [
'<?php
class Foo {
/** @var string */
public $foo = "";
}
$a = rand(0, 10) ? new Foo() : null;
echo $a->foo;',
'error_message' => 'PossiblyNullPropertyFetch',
],
'nullablePropertyFetch' => [
'<?php
$a = null;
echo $a->foo;',
'error_message' => 'NullPropertyFetch',
],
'badArrayProperty' => [
'<?php
class A {}
class B {}
class C {
/** @var array<B> */
public $bb;
}
$c = new C;
$c->bb = [new A, new B];',
'error_message' => 'InvalidPropertyAssignment',
],
'possiblyBadArrayProperty' => [
'<?php
class A {}
class B {}
class C {
/** @var array<int, B> */
public $bb;
}
class D {
/** @var array<int, A|B> */
public $bb;
}
$c = rand(0, 5) > 3 ? new C : new D;
$c->bb = [new A, new B];',
'error_message' => 'PossiblyInvalidPropertyAssignment',
],
'notSetInEmptyConstructor' => [
'<?php
class A {
/** @var int */
public $a;
public function __construct() { }
}',
'error_message' => 'PropertyNotSetInConstructor',
],
'noConstructor' => [
'<?php
class A {
/** @var int */
public $a;
}',
'error_message' => 'MissingConstructor',
],
'abstractClassInheritsNoConstructor' => [
'<?php
abstract class A {
/** @var string */
public $foo;
}
class B extends A {}',
'error_message' => 'MissingConstructor',
],
'abstractClassInheritsPrivateConstructor' => [
'<?php
abstract class A {
/** @var string */
public $foo;
private function __construct() {
$this->foo = "hello";
}
}
class B extends A {}',
'error_message' => 'InaccessibleMethod',
],
'classInheritsPrivateConstructorWithImplementedConstructor' => [
'<?php
abstract class A {
/** @var string */
public $foo;
private function __construct() {
$this->foo = "hello";
}
}
class B extends A {
public function __construct() {}
}',
'error_message' => 'PropertyNotSetInConstructor',
],
'notSetInAllBranchesOfIf' => [
'<?php
class A {
/** @var int */
public $a;
public function __construct() {
if (rand(0, 1)) {
$this->a = 5;
}
}
}',
'error_message' => 'PropertyNotSetInConstructor',
],
'propertySetInProtectedMethod' => [
'<?php
class A {
/** @var int */
public $a;
public function __construct() {
$this->foo();
}
protected function foo() : void {
$this->a = 5;
}
}',
'error_message' => 'PropertyNotSetInConstructor',
],
'definedInTraitNotSetInEmptyConstructor' => [
'<?php
trait A {
/** @var string **/
public $a;
}
class B {
use A;
public function __construct() {
}
}',
'error_message' => 'PropertyNotSetInConstructor',
],
'propertySetInPrivateMethodWithIf' => [
'<?php
class A {
/** @var int */
public $a;
public function __construct() {
if (rand(0, 1)) {
$this->foo();
}
}
private function foo() : void {
$this->a = 5;
}
}',
'error_message' => 'PropertyNotSetInConstructor',
],
'propertySetInPrivateMethodWithIfAndElse' => [
'<?php
class A {
/** @var int */
public $a;
public function __construct() {
if (rand(0, 1)) {
$this->foo();
} else {
$this->bar();
}
}
private function foo() : void {
$this->a = 5;
}
private function bar() : void {
$this->a = 5;
}
}',
'error_message' => 'PropertyNotSetInConstructor',
],
'undefinedPropertyClass' => [
'<?php
class A {
/** @var B */
public $foo;
}',
'error_message' => 'UndefinedClass',
],
'abstractClassWithNoConstructorButChild' => [
'<?php
abstract class A {
/** @var string */
public $foo;
}
class B extends A {
public function __construct() {
}
}',
'error_message' => 'PropertyNotSetInConstructor',
],
'badAssignmentToUndefinedVars' => [
'<?php
$x->$y = 4;',
'error_message' => 'UndefinedGlobalVariable',
],
'echoUndefinedPropertyFetch' => [
'<?php
echo $x->$y;',
'error_message' => 'UndefinedGlobalVariable',
],
];
}
}