mirror of
https://github.com/danog/psalm.git
synced 2024-11-30 04:39:00 +01:00
730 lines
25 KiB
PHP
730 lines
25 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 iterable<string,array{string,assertions?:array<string,string>,error_levels?:string[]}>
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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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'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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'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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'assertArrayReturnTypeNarrowed' => [
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'<?php
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/** @return array{0:Exception} */
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function f(array $a): array {
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if ($a[0] instanceof Exception) {
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return $a;
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}
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return [new Exception("bad")];
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}',
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],
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'assertTypeNarrowedByAssert' => [
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'<?php
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/** @return array{0:Exception,1:Exception} */
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function f(array $ret): array {
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assert($ret[0] instanceof Exception);
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assert($ret[1] instanceof Exception);
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return $ret;
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}',
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],
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'assertTypeNarrowedByButOtherFetchesAreMixed' => [
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'<?php
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/**
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* @return array{0:Exception}
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* @psalm-suppress MixedArgument
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*/
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function f(array $ret): array {
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assert($ret[0] instanceof Exception);
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echo strlen($ret[1]);
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return $ret;
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}',
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],
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'assertTypeNarrowedByNestedIsset' => [
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'<?php
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/**
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* @psalm-suppress MixedMethodCall
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* @psalm-suppress MixedArgument
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*/
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function foo(array $array = []): void {
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if (array_key_exists("a", $array)) {
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echo $array["a"];
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}
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if (array_key_exists("b", $array)) {
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echo $array["b"]->format("Y-m-d");
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}
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}',
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],
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'assertCheckOnNonZeroArrayOffset' => [
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'<?php
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/**
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* @param array{string,array|null} $a
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* @return string
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*/
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function f(array $a) {
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assert(is_array($a[1]));
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return $a[0];
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}',
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],
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'assertOnParseUrlOutput' => [
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'<?php
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/**
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* @param array<"a"|"b"|"c", mixed> $arr
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*/
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function uriToPath(array $arr) : string {
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if (!isset($arr["a"]) || $arr["b"] !== "foo") {
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throw new \InvalidArgumentException("bad");
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}
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return (string) $arr["c"];
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}',
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],
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'combineAfterLoopAssert' => [
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'<?php
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function foo(array $array) : void {
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$c = 0;
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if ($array["a"] === "a") {
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foreach ([rand(0, 1), rand(0, 1)] as $i) {
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if ($array["b"] === "c") {}
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$c++;
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}
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}
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}',
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],
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'assertOnXml' => [
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'<?php
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function f(array $array) : void {
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if ($array["foo"] === "ok") {
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if ($array["bar"] === "a") {}
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if ($array["bar"] === "b") {}
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}
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}',
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],
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'assertOnBacktrace' => [
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'<?php
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function _validProperty(array $c, array $arr) : void {
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if (empty($arr["a"])) {}
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if ($c && $c["a"] !== "b") {}
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}',
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],
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'assertOnRemainderOfArray' => [
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'<?php
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/**
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* @psalm-suppress MixedInferredReturnType
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* @psalm-suppress MixedReturnStatement
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*/
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function foo(string $file_name) : int {
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while ($data = getData()) {
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if (is_numeric($data[0])) {
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for ($i = 1; $i < count($data); $i++) {
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return $data[$i];
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}
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}
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}
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return 5;
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}
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function getData() : ?array {
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return rand(0, 1) ? ["a", "b", "c"] : null;
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}',
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],
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'notEmptyCheck' => [
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'<?php
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/**
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* @psalm-suppress MixedAssignment
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*/
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function load(string $objectName, array $config = []) : void {
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if (isset($config["className"])) {
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$name = $objectName;
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$objectName = $config["className"];
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}
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if (!empty($config)) {}
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}',
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],
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'unsetAfterIssetCheck' => [
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'<?php
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function checkbox(array $options = []) : void {
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if ($options["a"]) {}
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unset($options["a"], $options["b"]);
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}',
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],
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'assertStaticMethodIfFalse' => [
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'<?php
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class StringUtility {
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/**
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* @psalm-assert-if-false !null $yStr
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*/
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public static function isNull(?string $yStr): bool {
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if ($yStr === null) {
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return true;
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}
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return false;
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}
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}
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function test(?string $in) : void {
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$str = "test";
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if(!StringUtility::isNull($in)) {
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$str .= $in;
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}
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}',
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],
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'assertStaticMethodIfTrue' => [
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'<?php
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class StringUtility {
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/**
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* @psalm-assert-if-true !null $yStr
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*/
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public static function isNotNull(?string $yStr): bool {
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if ($yStr === null) {
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return true;
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}
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return false;
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}
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}
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function test(?string $in) : void {
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$str = "test";
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if(StringUtility::isNotNull($in)) {
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$str .= $in;
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}
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}',
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],
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'assertUnion' => [
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'<?php
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class Foo{
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public function bar() : void {}
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}
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/**
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* @param mixed $b
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* @psalm-assert int|Foo $b
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*/
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function assertIntOrFoo($b) : void {
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if (!is_int($b) && !(is_object($b) && $b instanceof Foo)) {
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throw new \Exception("bad");
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}
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}
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/** @psalm-suppress MixedAssignment */
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$a = $_GET["a"];
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assertIntOrFoo($a);
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if (!is_int($a)) $a->bar();',
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],
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'assertThisTypeIfTrue' => [
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'<?php
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class Type {
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/**
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* @psalm-assert-if-true FooType $this
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*/
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public function isFoo() : bool {
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return $this instanceof FooType;
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}
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}
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class FooType extends Type {
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public function bar(): void {}
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}
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function takesType(Type $t) : void {
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if ($t->isFoo()) {
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$t->bar();
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}
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switch (true) {
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case $t->isFoo():
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$t->bar();
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}
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}'
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],
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'assertNotArray' => [
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'<?php
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/**
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* @param mixed $value
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* @psalm-assert !array $value
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*/
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function myAssertNotArray($value) : void {}
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/**
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* @param mixed $value
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* @psalm-assert !iterable $value
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*/
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function myAssertNotIterable($value) : void {}
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/**
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* @param int|array $v
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*/
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function takesIntOrArray($v) : int {
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myAssertNotArray($v);
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return $v;
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}
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/**
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* @param int|iterable $v
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*/
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function takesIntOrIterable($v) : int {
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myAssertNotIterable($v);
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return $v;
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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 iterable<string,array{string,error_message:string,2?:string[],3?:bool,4?:string}>
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*/
|
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public function providerInvalidCodeParse()
|
|
{
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return [
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'assertInstanceOfMultipleInterfaces' => [
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'<?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;
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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 {}
|
|
public function foo2(): void {}
|
|
}
|
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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 {
|
|
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)) {
|
|
echo "Ma chaine " . $myString;
|
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}',
|
|
'error_message' => 'PossiblyNullOperand',
|
|
],
|
|
'assertIfFalseNoAnnotation' => [
|
|
'<?php
|
|
function isInvalidString(?string $myVar) : bool {
|
|
return $myVar === null || $myVar[0] !== "a";
|
|
}
|
|
|
|
$myString = rand(0, 1) ? "abacus" : null;
|
|
|
|
if (isInvalidString($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' => 'UndefinedDocblockClass',
|
|
],
|
|
'assertValueImpossible' => [
|
|
'<?php
|
|
/**
|
|
* @psalm-assert "foo"|"bar"|"foo-bar" $s
|
|
*/
|
|
function assertFooBar(string $s) : void {
|
|
}
|
|
|
|
$a = "";
|
|
assertFooBar($a);',
|
|
'error_message' => 'InvalidDocblock',
|
|
],
|
|
];
|
|
}
|
|
}
|