mirror of
https://github.com/danog/psalm.git
synced 2024-12-11 16:59:45 +01:00
760 lines
24 KiB
PHP
760 lines
24 KiB
PHP
<?php
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namespace Psalm\Tests;
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class InterfaceTest extends TestCase
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{
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use Traits\InvalidCodeAnalysisTestTrait;
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use Traits\ValidCodeAnalysisTestTrait;
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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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'extendsAndImplements' => [
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'<?php
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interface A
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{
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/**
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* @return string
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*/
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public function fooFoo();
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}
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interface B
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{
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/**
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* @return string
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*/
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public function barBar();
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}
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interface C extends A, B
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{
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/**
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* @return string
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*/
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public function baz();
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}
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class D implements C
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{
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/**
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* @return string
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*/
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public function fooFoo()
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{
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return "hello";
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}
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/**
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* @return string
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*/
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public function barBar()
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{
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return "goodbye";
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}
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/**
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* @return string
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*/
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public function baz()
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{
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return "hello again";
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}
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}
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$cee = (new D())->baz();
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$dee = (new D())->fooFoo();',
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'assertions' => [
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'$cee' => 'string',
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'$dee' => 'string',
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],
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],
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'isExtendedInterface' => [
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'<?php
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interface A {}
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class B implements A {}
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/**
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* @param A $a
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* @return void
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*/
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function qux(A $a) { }
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qux(new B());',
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],
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'isDoubleExtendedInterface' => [
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'<?php
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interface A {}
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interface B extends A {}
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class C implements B {}
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/**
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* @param A $a
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* @return void
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*/
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function qux(A $a) {
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}
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qux(new C());',
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],
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'extendsWithMethod' => [
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'<?php
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interface A
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{
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/**
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* @return string
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*/
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public function fooFoo();
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}
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interface B extends A
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{
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public function barBar();
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}
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/** @return void */
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function mux(B $b) {
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$b->fooFoo();
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}',
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],
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'correctInterfaceMethodSignature' => [
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'<?php
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interface A {
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public function fooFoo(int $a): void;
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}
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class B implements A {
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public function fooFoo(int $a): void {
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}
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}',
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],
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'interfaceMethodImplementedInParent' => [
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'<?php
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interface MyInterface {
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public function fooFoo(int $a): void;
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}
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class B {
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public function fooFoo(int $a): void {
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}
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}
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class C extends B implements MyInterface { }',
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],
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'interfaceMethodSignatureInTrait' => [
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'<?php
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interface A {
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public function fooFoo(int $a, int $b): void;
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}
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trait T {
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public function fooFoo(int $a, int $b): void {
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}
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}
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class B implements A {
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use T;
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}',
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],
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'delayedInterface' => [
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'<?php
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// fails in PHP, whatcha gonna do
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$c = new C;
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class A { }
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interface B { }
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class C extends A implements B { }',
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],
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'typeDoesNotContainType' => [
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'<?php
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interface A { }
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interface B {
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function foo();
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}
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function bar(A $a): void {
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if ($a instanceof B) {
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$a->foo();
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}
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}',
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],
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'abstractInterfaceImplements' => [
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'<?php
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interface I {
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public function fnc();
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}
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abstract class A implements I {}',
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],
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'abstractInterfaceImplementsButCallMethod' => [
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'<?php
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interface I {
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public function foo();
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}
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abstract class A implements I {
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public function bar(): void {
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$this->foo();
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}
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}',
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],
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'implementsPartialInterfaceMethods' => [
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'<?php
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namespace Bat;
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interface I {
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public function foo();
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public function bar();
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}
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abstract class A implements I {
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public function foo() {
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return "hello";
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}
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}
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class B extends A {
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public function bar() {
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return "goodbye";
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}
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}',
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'assertions' => [],
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'error_levels' => ['MissingReturnType'],
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],
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'interfaceConstants' => [
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'<?php
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interface I1 {
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const A = 5;
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const B = "two";
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const C = 3.0;
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}
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interface I2 extends I1 {
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const D = 5;
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const E = "two";
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}
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class A implements I2 {
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/** @var int */
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public $foo = I1::A;
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/** @var string */
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public $bar = self::B;
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/** @var float */
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public $bar2 = I2::C;
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/** @var int */
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public $foo2 = I2::D;
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/** @var string */
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public $bar3 = self::E;
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}',
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],
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'interfaceExtendsReturnType' => [
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'<?php
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interface A {}
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interface B extends A {}
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function foo(B $a): A {
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return $a;
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}',
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],
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'interfaceInstanceofReturningInitial' => [
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'<?php
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interface A {}
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interface B {}
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class C implements A, B {}
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function takesB(B $b): void {}
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function foo(A $i): A {
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if ($i instanceof B) {
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takesB($i);
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return $i;
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}
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return $i;
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}
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foo(new C);',
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],
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'interfaceInstanceofAndReturn' => [
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'<?php
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interface A {}
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interface B {}
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class C implements A, B {}
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function foo(A $i): B {
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if ($i instanceof B) {
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return $i;
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}
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throw new \Exception("bad");
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}
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foo(new C);',
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],
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'extendIteratorIterator' => [
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'<?php
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class SomeIterator extends IteratorIterator {}',
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],
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'suppressMismatch' => [
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'<?php
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interface I {
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/**
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* @return int
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*/
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public function check();
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}
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class C implements I
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{
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/**
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* @psalm-suppress ImplementedReturnTypeMismatch
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*/
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public function check(): bool
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{
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return false;
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}
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}',
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],
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'implementStaticReturn' => [
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'<?php
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class A {}
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interface I {
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/** @return A */
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public function foo();
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}
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class B extends A implements I {
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/** @return static */
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public function foo() {
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return $this;
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}
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}',
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],
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'implementThisReturn' => [
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'<?php
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class A {}
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interface I {
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/** @return A */
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public function foo();
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}
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class B extends A implements I {
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/** @return $this */
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public function foo() {
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return $this;
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}
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}',
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],
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'inheritMultipleInterfacesWithDocblocks' => [
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'<?php
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interface I1 {
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/** @return string */
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public function foo();
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}
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interface I2 {
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/** @return string */
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public function bar();
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}
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class A implements I1, I2 {
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public function foo() {
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return "hello";
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}
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public function bar() {
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return "goodbye";
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}
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}',
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],
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'interfaceReturnType' => [
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'<?php
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interface A {
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/** @return string|null */
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public function blah();
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}
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class B implements A {
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public function blah() {
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return rand(0, 10) === 4 ? "blah" : null;
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}
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}
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$blah = (new B())->blah();',
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],
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'interfaceExtendsTraversible' => [
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'<?php
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interface Collection extends Countable, IteratorAggregate, ArrayAccess {}
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function takesCollection(Collection $c): void {
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takesIterable($c);
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}
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function takesIterable(iterable $i): void {}',
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],
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'interfaceInstanceofInterfaceOrClass' => [
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'<?php
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interface A {}
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class B extends Exception {}
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function foo(Throwable $e): void {
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if ($e instanceof A || $e instanceof B) {
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return;
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}
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return;
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}
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class C extends Exception {}
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interface D {}
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function bar(Throwable $e): void {
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if ($e instanceof C || $e instanceof D) {
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return;
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}
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return;
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}',
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],
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'filterIteratorExtension' => [
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'<?php
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interface I2 extends Iterator {}
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class DedupeIterator extends FilterIterator {
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public function __construct(I2 $i) {
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parent::__construct($i);
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}
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public function accept() : bool {
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return true;
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}
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}',
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],
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'interfacInstanceMayContainOtherInterfaceInstance' => [
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'<?php
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interface I1 {}
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interface I2 {}
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class C implements I1,I2 {}
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function f(I1 $a, I2 $b): bool {
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return $a === $b;
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}
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/**
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* @param array<I1> $a
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* @param array<I2> $b
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*/
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function g(array $a, array $b): bool {
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return $a === $b;
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}
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$o = new C;
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f($o, $o);',
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],
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'interfacePropertyIntersection' => [
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'<?php
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class A {
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/** @var ?string */
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public $a;
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}
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class B extends A implements I {}
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interface I {}
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function takeI(I $i) : void {
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if ($i instanceof A) {
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echo $i->a;
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$i->a = "hello";
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}
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}',
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],
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'interfacePropertyIntersectionMockPropertyAccess' => [
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'<?php
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class A {
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/** @var ?string */
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private $a;
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}
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/** @psalm-override-property-visibility */
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interface I {}
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function takeI(I $i) : void {
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if ($i instanceof A) {
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echo $i->a;
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$i->a = "hello";
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}
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}',
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],
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'interfacePropertyIntersectionMockMethodAccess' => [
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'<?php
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class A {
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private function foo() : void {}
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}
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/** @psalm-override-method-visibility */
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interface I {}
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function takeI(I $i) : void {
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if ($i instanceof A) {
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$i->foo();
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}
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}',
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],
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'docblockParamInheritance' => [
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'<?php
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interface I {
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/** @param string[] $f */
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function foo(array $f) : void {}
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}
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class C implements I {
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/** @var string[] */
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private $f = [];
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/**
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* {@inheritdoc}
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*/
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public function foo(array $f) : void {
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$this->f = $f;
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}
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}
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class C2 implements I {
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/** @var string[] */
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private $f = [];
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/**
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* {@inheritDoc}
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*/
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public function foo(array $f) : void {
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$this->f = $f;
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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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{
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return [
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'invalidInterface' => [
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'<?php
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class C2 implements A { }',
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'error_message' => 'UndefinedClass',
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],
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'noInterfacePropertyFetch' => [
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'<?php
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interface A { }
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function fooFoo(A $a): void {
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if ($a->bar) {
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}
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}',
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'error_message' => 'NoInterfaceProperties',
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],
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'noInterfacePropertyAssignment' => [
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'<?php
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interface A { }
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function fooFoo(A $a): void {
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$a->bar = 5;
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}',
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'error_message' => 'NoInterfaceProperties',
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],
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'unimplementedInterfaceMethod' => [
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'<?php
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interface A {
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public function fooFoo();
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}
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class B implements A { }',
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'error_message' => 'UnimplementedInterfaceMethod',
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],
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'mismatchingInterfaceMethodSignature' => [
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'<?php
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interface A {
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public function fooFoo(int $a): void;
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}
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class B implements A {
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public function fooFoo(string $a): void {
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}
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}',
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'error_message' => 'MethodSignatureMismatch',
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],
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'mismatchingInterfaceMethodSignatureInTrait' => [
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'<?php
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interface A {
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public function fooFoo(int $a, int $b): void;
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}
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trait T {
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public function fooFoo(int $a): void {
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}
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}
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class B implements A {
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use T;
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}',
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'error_message' => 'MethodSignatureMismatch',
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],
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'mismatchingInterfaceMethodSignatureInImplementer' => [
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'<?php
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interface A {
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public function fooFoo(int $a, int $b): void;
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}
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|
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trait T {
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public function fooFoo(int $a, int $b): void {
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}
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}
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|
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class B implements A {
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use T;
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public function fooFoo(int $a): void {
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}
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}',
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'error_message' => 'MethodSignatureMismatch',
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],
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'mismatchingReturnTypes' => [
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'<?php
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interface I1 {
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public function foo(): string;
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}
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interface I2 {
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public function foo(): int;
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}
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class A implements I1, I2 {
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public function foo(): string {
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return "hello";
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}
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}',
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'error_message' => 'MethodSignatureMismatch',
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],
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|
'mismatchingDocblockReturnTypes' => [
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'<?php
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interface I1 {
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/** @return string */
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public function foo();
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}
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interface I2 {
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/** @return int */
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public function foo();
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}
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class A implements I1, I2 {
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/** @return string */
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public function foo() {
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return "hello";
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}
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}',
|
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'error_message' => 'ImplementedReturnTypeMismatch',
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],
|
|
'abstractInterfaceImplementsButCallUndefinedMethod' => [
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|
'<?php
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interface I {
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public function foo();
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}
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|
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abstract class A implements I {
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public function bar(): void {
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$this->foo2();
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}
|
|
}',
|
|
'error_message' => 'UndefinedMethod',
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],
|
|
'abstractInterfaceImplementsWithSubclass' => [
|
|
'<?php
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interface I {
|
|
public function fnc();
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}
|
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|
|
abstract class A implements I {}
|
|
|
|
class B extends A {}',
|
|
'error_message' => 'UnimplementedInterfaceMethod',
|
|
],
|
|
'lessSpecificReturnStatement' => [
|
|
'<?php
|
|
interface A {}
|
|
interface B extends A {}
|
|
|
|
function foo(A $a): B {
|
|
return $a;
|
|
}',
|
|
'error_message' => 'LessSpecificReturnStatement',
|
|
],
|
|
'interfaceInstanceofAndTwoReturns' => [
|
|
'<?php
|
|
interface A {}
|
|
interface B {}
|
|
|
|
class C implements A, B {}
|
|
|
|
function foo(A $i): B {
|
|
if ($i instanceof B) {
|
|
return $i;
|
|
}
|
|
|
|
return $i;
|
|
}
|
|
|
|
foo(new C);',
|
|
'error_message' => 'InvalidReturnStatement',
|
|
],
|
|
'deprecatedInterface' => [
|
|
'<?php
|
|
/** @deprecated */
|
|
interface Container {}
|
|
|
|
class A implements Container {}',
|
|
'error_message' => 'DeprecatedInterface',
|
|
],
|
|
'inheritMultipleInterfacesWithConflictingDocblocks' => [
|
|
'<?php
|
|
interface I1 {
|
|
/** @return string */
|
|
public function foo();
|
|
}
|
|
interface I2 {
|
|
/** @return int */
|
|
public function foo();
|
|
}
|
|
class A implements I1, I2 {
|
|
public function foo() {
|
|
return "hello";
|
|
}
|
|
}',
|
|
'error_message' => 'InvalidReturnType',
|
|
],
|
|
'interfaceInstantiation' => [
|
|
'<?php
|
|
interface myInterface{}
|
|
new myInterface();',
|
|
'error_message' => 'InterfaceInstantiation',
|
|
],
|
|
'nonStaticInterfaceMethod' => [
|
|
'<?php
|
|
interface I {
|
|
public static function m(): void;
|
|
}
|
|
class C implements I {
|
|
public function m(): void {}
|
|
}',
|
|
'error_message' => 'MethodSignatureMismatch'
|
|
],
|
|
];
|
|
}
|
|
}
|