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psalm/tests/TraitTest.php
2018-11-12 11:20:59 -05:00

827 lines
24 KiB
PHP

<?php
namespace Psalm\Tests;
class TraitTest extends TestCase
{
use Traits\InvalidCodeAnalysisTestTrait;
use Traits\ValidCodeAnalysisTestTrait;
/**
* @return array
*/
public function providerValidCodeParse()
{
return [
'accessiblePrivateMethodFromTrait' => [
'<?php
trait T {
private function fooFoo(): void {
}
}
class B {
use T;
public function doFoo(): void {
$this->fooFoo();
}
}',
],
'accessibleProtectedMethodFromTrait' => [
'<?php
trait T {
protected function fooFoo(): void {
}
}
class B {
use T;
public function doFoo(): void {
$this->fooFoo();
}
}',
],
'accessiblePublicMethodFromTrait' => [
'<?php
trait T {
public function fooFoo(): void {
}
}
class B {
use T;
public function doFoo(): void {
$this->fooFoo();
}
}',
],
'accessiblePrivatePropertyFromTrait' => [
'<?php
trait T {
/** @var string */
private $fooFoo = "";
}
class B {
use T;
public function doFoo(): void {
echo $this->fooFoo;
$this->fooFoo = "hello";
}
}',
],
'accessibleProtectedPropertyFromTrait' => [
'<?php
trait T {
/** @var string */
protected $fooFoo = "";
}
class B {
use T;
public function doFoo(): void {
echo $this->fooFoo;
$this->fooFoo = "hello";
}
}',
],
'accessiblePublicPropertyFromTrait' => [
'<?php
trait T {
/** @var string */
public $fooFoo = "";
}
class B {
use T;
public function doFoo(): void {
echo $this->fooFoo;
$this->fooFoo = "hello";
}
}',
],
'accessibleProtectedMethodFromInheritedTrait' => [
'<?php
trait T {
protected function fooFoo(): void {
}
}
class B {
use T;
}
class C extends B {
public function doFoo(): void {
$this->fooFoo();
}
}',
],
'accessiblePublicMethodFromInheritedTrait' => [
'<?php
trait T {
public function fooFoo(): void {
}
}
class B {
use T;
}
class C extends B {
public function doFoo(): void {
$this->fooFoo();
}
}',
],
'staticClassMethodFromWithinTrait' => [
'<?php
trait T {
public function fooFoo(): void {
self::barBar();
}
}
class B {
use T;
public static function barBar(): void {
}
}',
],
'redefinedTraitMethodWithoutAlias' => [
'<?php
trait T {
public function fooFoo(): void {
}
}
class B {
use T;
public function fooFoo(string $a): void {
}
}
(new B)->fooFoo("hello");',
],
'redefinedTraitMethodWithAlias' => [
'<?php
trait T {
public function fooFoo(): void {
}
}
class B {
use T {
fooFoo as barBar;
}
public function fooFoo(): void {
$this->barBar();
}
}',
],
'traitSelf' => [
'<?php
trait T {
public function g(): self
{
return $this;
}
}
class A {
use T;
}
$a = (new A)->g();',
'assertions' => [
'$a' => 'A',
],
],
'parentTraitSelf' => [
'<?php
trait T {
public function g(): self
{
return $this;
}
}
class A {
use T;
}
class B extends A {
}
class C {
use T;
}
$a = (new B)->g();',
'assertions' => [
'$a' => 'A',
],
],
'directStaticCall' => [
'<?php
trait T {
/** @return void */
public static function foo() {}
}
class A {
use T;
/** @return void */
public function bar() {
T::foo();
}
}',
],
'abstractTraitMethod' => [
'<?php
trait T {
/** @return void */
abstract public function foo();
}
abstract class A {
use T;
/** @return void */
public function bar() {
$this->foo();
}
}',
],
'instanceOfTraitUser' => [
'<?php
trait T {
public function f(): void {
if ($this instanceof A) { }
}
}
class A {
use T;
}
class B {
use T;
}',
],
'getClassTraitUser' => [
'<?php
trait T {
public function f(): void {
if (get_class($this) === "B") {
$this->foo();
}
}
}
class A {
use T;
}
class B {
use T;
public function foo() : void {}
}',
],
'staticClassTraitUser' => [
'<?php
trait T {
public function f(): void {
if (static::class === "B") {
$this->foo();
}
}
}
class A {
use T;
}
class B {
use T;
public function foo() : void {}
}',
],
'isAClassTraitUser' => [
'<?php
trait T {
public function f(): void {
if (is_a(static::class, "B")) { }
}
}
class A {
use T;
}
class B {
use T;
public function foo() : void {}
}',
],
'useTraitInClassWithAbstractMethod' => [
'<?php
trait T {
abstract public function foo(): void;
}
class A {
public function foo(): void {}
}',
],
'useTraitInSubclassWithAbstractMethod' => [
'<?php
trait T {
abstract public function foo(): void;
}
abstract class A {
public function foo(): void {}
}
class B extends A {
use T;
}',
],
'useTraitInSubclassWithAbstractMethodInParent' => [
'<?php
trait T {
public function foo(): void {}
}
abstract class A {
abstract public function foo(): void {}
}
class B extends A {
use T;
}',
],
'differentMethodReturnTypes' => [
'<?php
trait T {
public static function getSelf(): self {
return new self();
}
public static function callGetSelf(): self {
return self::getSelf();
}
}
class A {
use T;
}
class B {
use T;
}',
],
'parentRefInTraitShouldNotFail' => [
'<?php
trait T {
public function foo(): void {
parent::foo();
}
}
class A {
public function foo(): void {}
}
class B extends A {
use T;
}',
],
'namespacedTraitLookup' => [
'<?php
namespace Classes {
use Traits\T;
class A {}
class B {
use T;
}
}
namespace Traits {
use Classes\A;
trait T {
public function getA() : A {
return new A;
}
}
}
namespace {
$a = (new Classes\B)->getA();
}',
],
'useAndMap' => [
'<?php
class C
{
use T2;
use T1 {
traitFunc as _func;
}
public static function func(): void
{
static::_func();
}
}
trait T1
{
public static function traitFunc(): void {}
}
trait T2 { }',
],
'mapAndUse' => [
'<?php
class C
{
use T1 {
traitFunc as _func;
}
use T2;
public static function func(): void
{
static::_func();
}
}
trait T1
{
public static function traitFunc(): void {}
}
trait T2 { }',
],
'moreArgsInDefined' => [
'<?php
trait T {
abstract public function foo() : void;
public function callFoo() : void {
$this->foo();
}
}
class A {
use T;
public function foo(string $s = null) : void {
}
}',
],
'aliasedMethodInternalCallNoReplacement' => [
'<?php
trait T {
public function foo() : int {
return $this->bar();
}
public function bar() : int {
return 3;
}
}
class A {
use T {
bar as bat;
}
public function baz() : int {
return $this->bar();
}
}',
],
'aliasedMethodInternalCallWithLocalDefinition' => [
'<?php
trait T {
public function bar() : int {
return 3;
}
}
class A {
use T {
bar as bat;
}
public function bar() : string {
return "hello";
}
public function baz() : string {
return $this->bar();
}
}',
],
'allMethodsReplaced' => [
'<?php
trait T {
protected function foo() : void {}
public function bat() : void {
$this->foo();
}
}
class C {
use T;
protected function foo(string $s) : void {}
public function bat() : void {
$this->foo("bat");
}
}',
],
'aliasedPrivateMethodInternalCallWithLocalDefinition' => [
'<?php
trait T1 {
use T2;
private function foo() : int {
return $this->bar();
}
}
trait T2 {
private function bar() : int {
return 3;
}
}
class A {
use T1;
private function baz() : int {
return $this->bar();
}
}',
],
'traitClassConst' => [
'<?php
trait A {
public function foo(): string {
return B::class;
}
}
trait B {}
class C {
use A;
}'
],
'noRedundantConditionForTraitStatic' => [
'<?php
trait Foo {
public function bar() : array {
$type = static::class;
$r = new \ReflectionClass($type);
$values = $r->getConstants();
$callback =
/** @param mixed $v */
function ($v) : bool {
return \is_int($v) || \is_string($v);
};
if (is_a($type, \Bat::class, true)) {
$callback =
/** @param mixed $v */
function ($v) : bool {
return \is_int($v) && 0 === ($v & $v - 1) && $v > 0;
};
}
return array_filter($values, $callback);
}
}
class Bar {
use Foo;
}
class Bat {
use Foo;
}'
],
'nonMemoizedAssertions' => [
'<?php
trait T {
public function compare(O $other) : void {
if ($other instanceof self) {
if ($other->value === $this->value) {}
}
}
}
class O {}
class A extends O {
use T;
/** @var string */
private $value;
public function __construct(string $string) {
$this->value = $string;
}
}
class B extends O {
use T;
/** @var bool */
private $value;
public function __construct(bool $bool) {
$this->value = $bool;
}
}'
],
];
}
/**
* @return array
*/
public function providerInvalidCodeParse()
{
return [
'inaccessiblePrivateMethodFromInheritedTrait' => [
'<?php
trait T {
private function fooFoo(): void {
}
}
class B {
use T;
}
class C extends B {
public function doFoo(): void {
$this->fooFoo();
}
}',
'error_message' => 'InaccessibleMethod',
],
'undefinedTrait' => [
'<?php
class B {
use A;
}',
'error_message' => 'UndefinedTrait',
],
'missingPropertyType' => [
'<?php
trait T {
public $foo;
}
class A {
use T;
public function assignToFoo(): void {
$this->foo = 5;
}
}',
'error_message' => 'MissingPropertyType - src' . DIRECTORY_SEPARATOR . 'somefile.php:3 - Property T::$foo does not have a ' .
'declared type - consider int|null',
],
'missingPropertyTypeWithConstructorInit' => [
'<?php
trait T {
public $foo;
}
class A {
use T;
public function __construct() {
$this->foo = 5;
}
}',
'error_message' => 'MissingPropertyType - src' . DIRECTORY_SEPARATOR . 'somefile.php:3 - Property T::$foo does not have a ' .
'declared type - consider int',
],
'missingPropertyTypeWithConstructorInitAndNull' => [
'<?php
trait T {
public $foo;
}
class A {
use T;
public function __construct() {
$this->foo = 5;
}
public function makeNull(): void {
$this->foo = null;
}
}',
'error_message' => 'MissingPropertyType - src' . DIRECTORY_SEPARATOR . 'somefile.php:3 - Property T::$foo does not have a ' .
'declared type - consider int|null',
],
'missingPropertyTypeWithConstructorInitAndNullDefault' => [
'<?php
trait T {
public $foo = null;
}
class A {
use T;
public function __construct() {
$this->foo = 5;
}
}',
'error_message' => 'MissingPropertyType - src' . DIRECTORY_SEPARATOR . 'somefile.php:3 - Property T::$foo does not have a ' .
'declared type - consider int|null',
],
'redefinedTraitMethodInSubclass' => [
'<?php
trait T {
public function fooFoo(): void {
}
}
class B {
use T;
}
class C extends B {
public function fooFoo(string $a): void {
}
}',
'error_message' => 'MethodSignatureMismatch',
],
'missingTraitPropertyType' => [
'<?php
trait T {
public $foo;
}
class A {
use T;
}',
'error_message' => 'MissingPropertyType',
],
'nestedTraitWithBadReturnType' => [
'<?php
trait A {
public function foo() : string {
return 5;
}
}
trait B {
use A;
}
class C {
use B;
}',
'error_message' => 'InvalidReturnType',
],
'replaceTraitMethod' => [
'<?php
trait T {
protected function foo() : void {}
public function bat() : void {
$this->foo();
}
}
class C {
use T;
protected function foo(string $s) : void {}
}',
'error_message' => 'TooFewArguments',
],
];
}
}