mirror of
https://github.com/danog/psalm.git
synced 2024-11-27 12:55:26 +01:00
864 lines
29 KiB
PHP
864 lines
29 KiB
PHP
<?php
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namespace Psalm\Tests;
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class AssertTest extends TestCase
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{
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use Traits\ValidCodeAnalysisTestTrait;
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use Traits\InvalidCodeAnalysisTestTrait;
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/**
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* @return array
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*/
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public function providerValidCodeParse()
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{
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return [
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'assertInstanceOfB' => [
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'<?php
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namespace Bar;
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class A {}
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class B extends A {
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public function foo(): void {}
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}
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function assertInstanceOfB(A $var): void {
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if (!$var instanceof B) {
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throw new \Exception();
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}
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}
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function takesA(A $a): void {
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assertInstanceOfB($a);
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$a->foo();
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}',
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],
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'dropInReplacementForAssert' => [
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'<?php
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namespace Bar;
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/**
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* @param mixed $_b
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* @psalm-assert !falsy $_b
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*/
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function myAssert($_b) : void {
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if (!$_b) {
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throw new \Exception("bad");
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}
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}
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function bar(?string $s) : string {
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myAssert($s !== null);
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return $s;
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}'
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],
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'assertInstanceOfInterface' => [
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'<?php
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namespace Bar;
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class A {
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public function bar() : void {}
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}
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interface I {
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public function foo(): void;
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}
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class B extends A implements I {
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public function foo(): void {}
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}
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function assertInstanceOfI(A $var): void {
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if (!$var instanceof I) {
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throw new \Exception();
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}
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}
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function takesA(A $a): void {
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assertInstanceOfI($a);
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$a->bar();
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$a->foo();
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}',
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],
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'assertInstanceOfMultipleInterfaces' => [
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'<?php
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namespace Bar;
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class A {
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public function bar() : void {}
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}
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interface I1 {
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public function foo1(): void;
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}
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interface I2 {
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public function foo2(): void;
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}
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class B extends A implements I1, I2 {
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public function foo1(): void {}
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public function foo2(): void {}
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}
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function assertInstanceOfInterfaces(A $var): void {
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if (!$var instanceof I1 || !$var instanceof I2) {
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throw new \Exception();
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}
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}
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function takesA(A $a): void {
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assertInstanceOfInterfaces($a);
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$a->bar();
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$a->foo1();
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}',
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],
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'assertInstanceOfBInClassMethod' => [
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'<?php
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namespace Bar;
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class A {}
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class B extends A {
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public function foo(): void {}
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}
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class C {
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private function assertInstanceOfB(A $var): void {
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if (!$var instanceof B) {
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throw new \Exception();
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}
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}
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private function takesA(A $a): void {
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$this->assertInstanceOfB($a);
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$a->foo();
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}
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}',
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],
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'assertPropertyNotNull' => [
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'<?php
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namespace Bar;
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class A {
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public function foo(): void {}
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}
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class B {
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/** @var A|null */
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public $a;
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private function assertNotNullProperty(): void {
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if (!$this->a) {
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throw new \Exception();
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}
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}
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public function takesA(A $a): void {
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$this->assertNotNullProperty();
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$a->foo();
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}
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}',
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],
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'assertWithoutRedundantCondition' => [
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'<?php
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namespace Bar;
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/**
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* @param mixed $data
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* @throws \Exception
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*/
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function assertIsLongString($data): void {
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if (!is_string($data)) {
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throw new \Exception;
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}
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if (strlen($data) < 100) {
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throw new \Exception;
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}
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}
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/**
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* @throws \Exception
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*/
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function f(string $s): void {
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assertIsLongString($s);
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}',
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],
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'assertInstanceOfBAnnotation' => [
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'<?php
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namespace Bar;
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class A {}
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class B extends A {
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public function foo(): void {}
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}
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/** @psalm-assert B $var */
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function myAssertInstanceOfB(A $var): void {
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if (!$var instanceof B) {
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throw new \Exception();
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}
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}
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function takesA(A $a): void {
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myAssertInstanceOfB($a);
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$a->foo();
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}',
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],
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'assertIfTrueAnnotation' => [
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'<?php
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namespace Bar;
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/** @psalm-assert-if-true string $myVar */
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function isValidString(?string $myVar) : bool {
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return $myVar !== null && $myVar[0] === "a";
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}
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$myString = rand(0, 1) ? "abacus" : null;
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if (isValidString($myString)) {
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echo "Ma chaine " . $myString;
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}'
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],
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'assertIfFalseAnnotation' => [
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'<?php
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namespace Bar;
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/** @psalm-assert-if-false string $myVar */
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function isInvalidString(?string $myVar) : bool {
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return $myVar === null || $myVar[0] !== "a";
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}
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$myString = rand(0, 1) ? "abacus" : null;
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if (isInvalidString($myString)) {
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// do something
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} else {
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echo "Ma chaine " . $myString;
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}'
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],
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'assertServerVar' => [
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'<?php
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namespace Bar;
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/**
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* @psalm-assert-if-true string $a
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* @param mixed $a
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*/
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function my_is_string($a) : bool
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{
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return is_string($a);
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}
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if (my_is_string($_SERVER["abc"])) {
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$i = substr($_SERVER["abc"], 1, 2);
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}',
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],
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'assertTemplatedType' => [
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'<?php
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namespace Bar;
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interface Foo {}
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class Bar implements Foo {
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public function sayHello(): void {
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echo "Hello";
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}
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}
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/**
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* @param mixed $value
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* @param class-string $type
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* @template T
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* @template-typeof T $type
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* @psalm-assert T $value
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*/
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function assertInstanceOf($value, string $type): void {
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// some code
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}
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// Returns concreate implmenetation of Foo, which in this case is Bar
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function getImplementationOfFoo(): Foo {
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return new Bar();
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}
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$bar = getImplementationOfFoo();
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assertInstanceOf($bar, Bar::class);
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$bar->sayHello();'
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],
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'dontBleedBadAssertVarIntoContext' => [
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'<?php
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namespace Bar;
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class A {
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public function foo() : bool {
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return (bool) rand(0, 1);
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}
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public function bar() : bool {
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return (bool) rand(0, 1);
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}
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}
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/**
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* Asserts that a condition is false.
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*
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* @param bool $condition
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* @param string $message
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*
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* @psalm-assert false $actual
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*/
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function assertFalse($condition, $message = "") : void {}
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function takesA(A $a) : void {
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assertFalse($a->foo());
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assertFalse($a->bar());
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}'
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],
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'suppressRedundantCondition' => [
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'<?php
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namespace Bar;
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class A {}
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/**
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* @param class-string $expected
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* @param mixed $actual
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* @param string $message
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*
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* @template T
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* @template-typeof T $expected
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* @psalm-assert T $actual
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*/
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function assertInstanceOf($expected, $actual) : void {
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}
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/**
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* @psalm-suppress RedundantCondition
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*/
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function takesA(A $a) : void {
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assertInstanceOf(A::class, $a);
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}',
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],
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'allowCanBeSameAfterAssertion' => [
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'<?php
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namespace Bar;
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/**
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* Asserts that two variables are the same.
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*
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* @template T
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* @param T $expected
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* @param mixed $actual
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* @psalm-assert =T $actual
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*/
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function assertSame($expected, $actual) : void {}
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$a = rand(0, 1) ? "goodbye" : "hello";
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$b = rand(0, 1) ? "hello" : "goodbye";
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assertSame($a, $b);
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$c = "hello";
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$d = rand(0, 1) ? "hello" : "goodbye";
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assertSame($c, $d);
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$c = "hello";
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$d = rand(0, 1) ? "hello" : "goodbye";
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assertSame($d, $c);
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$c = 4;
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$d = rand(0, 1) ? 4 : 5;
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assertSame($d, $c);
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$d = rand(0, 1) ? 4 : null;
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assertSame(null, $d);
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function foo(string $a, string $b) : void {
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assertSame($a, $b);
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}',
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],
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'allowCanBeNotSameAfterAssertion' => [
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'<?php
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namespace Bar;
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/**
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* Asserts that two variables are the same.
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*
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* @template T
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* @param T $expected
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* @param mixed $actual
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* @psalm-assert !=T $actual
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*/
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function assertNotSame($expected, $actual) : void {}
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$a = rand(0, 1) ? "goodbye" : "hello";
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$b = rand(0, 1) ? "hello" : "goodbye";
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assertNotSame($a, $b);
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$c = "hello";
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$d = rand(0, 1) ? "hello" : "goodbye";
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assertNotSame($c, $d);
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$c = "hello";
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$d = rand(0, 1) ? "hello" : "goodbye";
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assertNotSame($d, $c);
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$c = 4;
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$d = rand(0, 1) ? 4 : 5;
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assertNotSame($d, $c);
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function foo(string $a, string $b) : void {
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assertNotSame($a, $b);
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}',
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],
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'allowCanBeEqualAfterAssertion' => [
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'<?php
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/**
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* Asserts that two variables are the same.
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*
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* @template T
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* @param T $expected
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* @param mixed $actual
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* @psalm-assert ~T $actual
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*/
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function assertEqual($expected, $actual) : void {}
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$a = rand(0, 1) ? "goodbye" : "hello";
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$b = rand(0, 1) ? "hello" : "goodbye";
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assertEqual($a, $b);
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$c = "hello";
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$d = rand(0, 1) ? "hello" : "goodbye";
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assertEqual($c, $d);
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$c = "hello";
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$d = rand(0, 1) ? "hello" : "goodbye";
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assertEqual($d, $c);
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$c = 4;
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$d = rand(0, 1) ? 3.0 : 4.0;
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assertEqual($d, $c);
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$c = 4.0;
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$d = rand(0, 1) ? 3 : 4;
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assertEqual($d, $c);
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function foo(string $a, string $b) : void {
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assertEqual($a, $b);
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}',
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],
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'assertAllStrings' => [
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'<?php
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/**
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* @psalm-assert iterable<mixed,string> $i
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*
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* @param iterable<mixed,mixed> $i
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*/
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function assertAllStrings(iterable $i): void {
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/** @psalm-suppress MixedAssignment */
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foreach ($i as $s) {
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if (!is_string($s)) {
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throw new \UnexpectedValueException("");
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}
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}
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}
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function getArray(): array {
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return [];
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}
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function getIterable(): iterable {
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return [];
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}
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$array = getArray();
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assertAllStrings($array);
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$iterable = getIterable();
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assertAllStrings($iterable);',
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[
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'$array' => 'array<array-key, string>',
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'$iterable' => 'iterable<mixed, string>',
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]
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],
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'assertAllArrayOfClass' => [
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'<?php
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/**
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* @template T
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*
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* @psalm-assert iterable<mixed,T> $i
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*
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* @param iterable<mixed,mixed> $i
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* @param class-string<T> $type
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*/
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function assertAllInstanceOf(iterable $i, string $type): void {
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/** @psalm-suppress MixedAssignment */
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foreach ($i as $elt) {
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if (!$elt instanceof $type) {
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throw new \UnexpectedValueException("");
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}
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}
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}
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class A {}
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function getArray(): array {
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return [];
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}
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$array = getArray();
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assertAllInstanceOf($array, A::class);',
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[
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'$array' => 'array<array-key, A>',
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]
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],
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'assertAllIterableOfClass' => [
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'<?php
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/**
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* @template T
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*
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* @psalm-assert iterable<mixed,T> $i
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*
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* @param iterable<mixed,mixed> $i
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* @param class-string<T> $type
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*/
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function assertAllInstanceOf(iterable $i, string $type): void {
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/** @psalm-suppress MixedAssignment */
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foreach ($i as $elt) {
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if (!$elt instanceof $type) {
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throw new \UnexpectedValueException("");
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}
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}
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}
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class A {}
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function getIterable(): iterable {
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return [];
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}
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$iterable = getIterable();
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assertAllInstanceOf($iterable, A::class);',
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[
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'$iterable' => 'iterable<mixed, A>',
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]
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],
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'complicatedAssertAllInstanceOf' => [
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'<?php
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/**
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* @template T
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*
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* @psalm-assert-if-true iterable<mixed,T> $i
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*
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* @param iterable<mixed,mixed> $i
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* @param class-string<T> $type
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*/
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function allInstanceOf(iterable $i, string $type): bool {
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/** @psalm-suppress MixedAssignment */
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foreach ($i as $elt) {
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if (!$elt instanceof $type) {
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return false;
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}
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}
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return true;
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}
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|
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|
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interface IBlogPost { public function getId(): int; }
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|
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function getData(): iterable {
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return [];
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}
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$data = getData();
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assert(allInstanceOf($data, IBlogPost::class));
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foreach ($data as $post) {
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echo $post->getId();
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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 array
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*/
|
|
public function providerInvalidCodeParse()
|
|
{
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|
return [
|
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'assertInstanceOfMultipleInterfaces' => [
|
|
'<?php
|
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class A {
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public function bar() : void {}
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}
|
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interface I1 {
|
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public function foo1(): void;
|
|
}
|
|
interface I2 {
|
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public function foo2(): void;
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}
|
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class B extends A implements I1, I2 {
|
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public function foo1(): void {}
|
|
public function foo2(): void {}
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}
|
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|
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function assertInstanceOfInterfaces(A $var): void {
|
|
if (!$var instanceof I1 && !$var instanceof I2) {
|
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throw new \Exception();
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}
|
|
}
|
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|
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function takesA(A $a): void {
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assertInstanceOfInterfaces($a);
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$a->bar();
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$a->foo1();
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}',
|
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'error_message' => 'UndefinedMethod',
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],
|
|
'assertIfTrueNoAnnotation' => [
|
|
'<?php
|
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function isValidString(?string $myVar) : bool {
|
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return $myVar !== null && $myVar[0] === "a";
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}
|
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|
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$myString = rand(0, 1) ? "abacus" : null;
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|
|
if (isValidString($myString)) {
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echo "Ma chaine " . $myString;
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}',
|
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'error_message' => 'PossiblyNullOperand',
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],
|
|
'assertIfFalseNoAnnotation' => [
|
|
'<?php
|
|
function isInvalidString(?string $myVar) : bool {
|
|
return $myVar === null || $myVar[0] !== "a";
|
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}
|
|
|
|
$myString = rand(0, 1) ? "abacus" : null;
|
|
|
|
if (isInvalidString($myString)) {
|
|
// do something
|
|
} else {
|
|
echo "Ma chaine " . $myString;
|
|
}',
|
|
'error_message' => 'PossiblyNullOperand',
|
|
],
|
|
'assertIfTrueMethodCall' => [
|
|
'<?php
|
|
class C {
|
|
/**
|
|
* @param mixed $p
|
|
* @psalm-assert-if-true int $p
|
|
*/
|
|
public function isInt($p): bool {
|
|
return is_int($p);
|
|
}
|
|
/**
|
|
* @param mixed $p
|
|
*/
|
|
public function doWork($p): void {
|
|
if ($this->isInt($p)) {
|
|
strlen($p);
|
|
}
|
|
}
|
|
}',
|
|
'error_message' => 'InvalidScalarArgument',
|
|
],
|
|
'assertIfStaticTrueMethodCall' => [
|
|
'<?php
|
|
class C {
|
|
/**
|
|
* @param mixed $p
|
|
* @psalm-assert-if-true int $p
|
|
*/
|
|
public static function isInt($p): bool {
|
|
return is_int($p);
|
|
}
|
|
/**
|
|
* @param mixed $p
|
|
*/
|
|
public function doWork($p): void {
|
|
if ($this->isInt($p)) {
|
|
strlen($p);
|
|
}
|
|
}
|
|
}',
|
|
'error_message' => 'InvalidScalarArgument',
|
|
],
|
|
'noFatalForUnknownAssertClass' => [
|
|
'<?php
|
|
interface Foo {}
|
|
|
|
class Bar implements Foo {
|
|
public function sayHello(): void {
|
|
echo "Hello";
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param mixed $value
|
|
* @param class-string $type
|
|
* @psalm-assert SomeUndefinedClass $value
|
|
*/
|
|
function assertInstanceOf($value, string $type): void {
|
|
// some code
|
|
}
|
|
|
|
// Returns concreate implmenetation of Foo, which in this case is Bar
|
|
function getImplementationOfFoo(): Foo {
|
|
return new Bar();
|
|
}
|
|
|
|
$bar = getImplementationOfFoo();
|
|
assertInstanceOf($bar, Bar::class);
|
|
|
|
$bar->sayHello();',
|
|
'error_message' => 'UndefinedClass',
|
|
],
|
|
'detectRedundantCondition' => [
|
|
'<?php
|
|
class A {}
|
|
|
|
/**
|
|
* @param class-string $expected
|
|
* @param mixed $actual
|
|
* @param string $message
|
|
*
|
|
* @template T
|
|
* @template-typeof T $expected
|
|
* @psalm-assert T $actual
|
|
*/
|
|
function assertInstanceOf($expected, $actual) : void {
|
|
}
|
|
|
|
function takesA(A $a) : void {
|
|
assertInstanceOf(A::class, $a);
|
|
}',
|
|
'error_message' => 'RedundantCondition'
|
|
],
|
|
'detectAssertSameTypeDoesNotContainType' => [
|
|
'<?php
|
|
|
|
/**
|
|
* Asserts that two variables are the same.
|
|
*
|
|
* @template T
|
|
* @param T $expected
|
|
* @param mixed $actual
|
|
* @psalm-assert =T $actual
|
|
*/
|
|
function assertSame($expected, $actual) : void {}
|
|
|
|
$a = 5;
|
|
$b = "hello";
|
|
assertSame($a, $b);',
|
|
'error_message' => 'TypeDoesNotContainType'
|
|
],
|
|
'detectAssertAlwaysSame' => [
|
|
'<?php
|
|
|
|
/**
|
|
* Asserts that two variables are the same.
|
|
*
|
|
* @template T
|
|
* @param T $expected
|
|
* @param mixed $actual
|
|
* @psalm-assert =T $actual
|
|
*/
|
|
function assertSame($expected, $actual) : void {}
|
|
|
|
$a = 5;
|
|
$b = 5;
|
|
assertSame($a, $b);',
|
|
'error_message' => 'RedundantCondition'
|
|
],
|
|
'detectNeverCanBeSameAfterAssertion' => [
|
|
'<?php
|
|
|
|
/**
|
|
* Asserts that two variables are the same.
|
|
*
|
|
* @template T
|
|
* @param T $expected
|
|
* @param mixed $actual
|
|
* @psalm-assert =T $actual
|
|
*/
|
|
function assertSame($expected, $actual) : void {}
|
|
|
|
$c = "helloa";
|
|
$d = rand(0, 1) ? "hello" : "goodbye";
|
|
assertSame($c, $d);',
|
|
'error_message' => 'TypeDoesNotContainType'
|
|
],
|
|
'detectNeverCanBeNotSameAfterAssertion' => [
|
|
'<?php
|
|
|
|
/**
|
|
* Asserts that two variables are the same.
|
|
*
|
|
* @template T
|
|
* @param T $expected
|
|
* @param mixed $actual
|
|
* @psalm-assert !=T $actual
|
|
*/
|
|
function assertNotSame($expected, $actual) : void {}
|
|
|
|
$c = "helloa";
|
|
$d = rand(0, 1) ? "hello" : "goodbye";
|
|
assertNotSame($c, $d);',
|
|
'error_message' => 'RedundantCondition'
|
|
],
|
|
'detectNeverCanBeEqualAfterAssertion' => [
|
|
'<?php
|
|
|
|
/**
|
|
* Asserts that two variables are the same.
|
|
*
|
|
* @template T
|
|
* @param T $expected
|
|
* @param mixed $actual
|
|
* @psalm-assert ~T $actual
|
|
*/
|
|
function assertEqual($expected, $actual) : void {}
|
|
|
|
$c = "helloa";
|
|
$d = rand(0, 1) ? "hello" : "goodbye";
|
|
assertEqual($c, $d);',
|
|
'error_message' => 'TypeDoesNotContainType'
|
|
],
|
|
'detectIntFloatNeverCanBeEqualAfterAssertion' => [
|
|
'<?php
|
|
|
|
/**
|
|
* Asserts that two variables are the same.
|
|
*
|
|
* @template T
|
|
* @param T $expected
|
|
* @param mixed $actual
|
|
* @psalm-assert ~T $actual
|
|
*/
|
|
function assertEqual($expected, $actual) : void {}
|
|
|
|
$c = 4;
|
|
$d = rand(0, 1) ? 5.0 : 6.0;
|
|
assertEqual($c, $d);',
|
|
'error_message' => 'TypeDoesNotContainType'
|
|
],
|
|
'detectFloatIntNeverCanBeEqualAfterAssertion' => [
|
|
'<?php
|
|
|
|
/**
|
|
* Asserts that two variables are the same.
|
|
*
|
|
* @template T
|
|
* @param T $expected
|
|
* @param mixed $actual
|
|
* @psalm-assert ~T $actual
|
|
*/
|
|
function assertEqual($expected, $actual) : void {}
|
|
|
|
$c = 4.0;
|
|
$d = rand(0, 1) ? 5 : 6;
|
|
assertEqual($c, $d);',
|
|
'error_message' => 'TypeDoesNotContainType'
|
|
],
|
|
];
|
|
}
|
|
}
|