mirror of
https://github.com/danog/psalm.git
synced 2024-11-26 20:34:47 +01:00
711 lines
23 KiB
PHP
711 lines
23 KiB
PHP
<?php
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namespace Psalm\Tests;
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class SwitchTypeTest extends TestCase
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{
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use Traits\FileCheckerInvalidCodeParseTestTrait;
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use Traits\FileCheckerValidCodeParseTestTrait;
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/**
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* @return array
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*/
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public function providerFileCheckerValidCodeParse()
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{
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return [
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'getClassArg' => [
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'<?php
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class A {
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/**
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* @return void
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*/
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public function fooFoo() {
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}
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}
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class B {
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/**
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* @return void
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*/
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public function barBar() {
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}
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}
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$a = rand(0, 10) ? new A(): new B();
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switch (get_class($a)) {
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case "A":
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$a->fooFoo();
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break;
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case "B":
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$a->barBar();
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break;
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}',
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],
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'getClassConstArg' => [
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'<?php
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class A {
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/**
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* @return void
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*/
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public function fooFoo() {
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}
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}
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class B {
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/**
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* @return void
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*/
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public function barBar() {
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}
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}
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$a = rand(0, 10) ? new A(): new B();
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switch (get_class($a)) {
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case A::class:
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$a->fooFoo();
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break;
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case B::class:
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$a->barBar();
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break;
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}',
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],
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'getClassExteriorArgClassConsts' => [
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'<?php
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/** @return void */
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function foo(Exception $e) {
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switch (get_class($e)) {
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case InvalidArgumentException::class:
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$e->getMessage();
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break;
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case LogicException::class:
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$e->getMessage();
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break;
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}
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}
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',
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],
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'getClassExteriorArg' => [
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'<?php
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/** @return void */
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function foo(Exception $e) {
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switch (get_class($e)) {
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case "InvalidArgumentException":
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$e->getMessage();
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break;
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case "LogicException":
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$e->getMessage();
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break;
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}
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}',
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],
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'switchGetClassVar' => [
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'<?php
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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 takesA(A $a): void {
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$class = get_class($a);
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switch ($class) {
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case B::class:
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$a->foo();
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break;
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}
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}',
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],
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'getTypeArg' => [
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'<?php
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function testInt(int $var): void {
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}
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function testString(string $var): void {
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}
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$a = rand(0, 10) ? 1 : "two";
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switch (gettype($a)) {
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case "string":
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testString($a);
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break;
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case "integer":
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testInt($a);
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break;
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}',
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],
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'switchTruthy' => [
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'<?php
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class A {
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/**
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* @var ?string
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*/
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public $a = null;
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/**
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* @var ?string
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*/
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public $b = null;
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}
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function f(A $obj): string {
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switch (true) {
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case $obj->a !== null:
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return $obj->a; // definitely not null
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case !is_null($obj->b):
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return $obj->b; // definitely not null
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default:
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throw new \InvalidArgumentException("$obj->a or $obj->b must be set");
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}
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}',
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],
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'switchMoTruthy' => [
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'<?php
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class A {
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/**
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* @var ?string
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*/
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public $a = null;
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/**
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* @var ?string
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*/
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public $b = null;
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}
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function f(A $obj): string {
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switch (true) {
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case $obj->a:
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return $obj->a; // definitely not null
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case $obj->b:
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return $obj->b; // definitely not null
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default:
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throw new \InvalidArgumentException("$obj->a or $obj->b must be set");
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}
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}',
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],
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'switchWithBadBreak' => [
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'<?php
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class A {}
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function foo(): A {
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switch (rand(0,1)) {
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case true:
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return new A;
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break;
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default:
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return new A;
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}
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}',
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],
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'switchCaseExpression' => [
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'<?php
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switch (true) {
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case preg_match("/(d)ata/", "some data in subject string", $matches):
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return $matches[1];
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default:
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throw new RuntimeException("none found");
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}',
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],
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'switchBools' => [
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'<?php
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$x = false;
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$y = false;
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foreach ([1, 2, 3] as $v) {
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switch($v) {
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case 3:
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$y = true;
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break;
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case 2:
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$x = true;
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break;
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default:
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break;
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}
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}',
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'assertions' => [
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'$x' => 'bool',
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'$y' => 'bool',
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],
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],
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'continueIsBreak' => [
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'<?php
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switch(2) {
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case 2:
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echo "two\n";
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continue;
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}',
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],
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'defaultAboveCase' => [
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'<?php
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function foo(string $a) : string {
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switch ($a) {
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case "a":
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return "hello";
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default:
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case "b":
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return "goodbye";
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}
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}',
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],
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'dontResolveTypesBadly' => [
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'<?php
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$a = new A;
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switch (rand(0,1)) {
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case 0:
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case 1:
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$dt = $a->maybeReturnsDT();
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if (!is_null($dt)) {
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$dt = $dt->format(\DateTime::ISO8601);
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}
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break;
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}
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class A {
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public function maybeReturnsDT(): ?\DateTimeInterface {
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return rand(0,1) ? new \DateTime("now") : null;
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}
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}',
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],
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'issetInFallthrough' => [
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'<?php
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function foo() : void {
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switch(rand() % 4) {
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case 0:
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echo "here";
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break;
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case 1:
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$x = rand() % 4;
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case 2:
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if (isset($x) && $x > 2) {
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echo "$x is large";
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}
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break;
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}
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}',
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],
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'switchManyGetClass' => [
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'<?php
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class A {}
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class B extends A {}
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class C extends A {}
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class D extends A {}
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function foo(A $a) : void {
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switch(get_class($a)) {
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case B::class:
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case C::class:
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case D::class:
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echo "goodbye";
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}
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}',
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],
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'switchManyStrings' => [
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'<?php
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function foo(string $s) : void {
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switch($s) {
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case "a":
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case "b":
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case "c":
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echo "goodbye";
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}
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}',
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],
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'allSwitchesMet' => [
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'<?php
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$a = rand(0, 1) ? "a" : "b";
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switch ($a) {
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case "a":
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$foo = "hello";
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break;
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case "b":
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$foo = "goodbye";
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break;
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}
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echo $foo;',
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],
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'impossibleCaseDefaultWithThrow' => [
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'<?php
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$a = rand(0, 1) ? "a" : "b";
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switch ($a) {
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case "a":
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break;
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case "b":
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break;
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default:
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throw new \Exception("should never happen");
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}',
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],
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'switchOnUnknownInts' => [
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'<?php
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function foo(int $a, int $b, int $c) : void {
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switch ($a) {
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case $b:
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break;
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case $c:
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break;
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}
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}',
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],
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'switchNullable1' => [
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'<?php
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function foo(?string $s) : void {
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switch ($s) {
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case "hello":
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case "goodbye":
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echo "cool";
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break;
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case "hello again":
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echo "cool";
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break;
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}
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}',
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],
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'switchNullable2' => [
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'<?php
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function foo(?string $s) : void {
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switch ($s) {
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case "hello":
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echo "cool";
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case "goodbye":
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echo "cooler";
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break;
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case "hello again":
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echo "cool";
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break;
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}
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}',
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],
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'switchNullable3' => [
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'<?php
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function foo(?string $s) : void {
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switch ($s) {
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case "hello":
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echo "cool";
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break;
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case "goodbye":
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echo "cool";
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break;
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case "hello again":
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echo "cool";
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break;
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}
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}',
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],
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'switchNullable4' => [
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'<?php
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function foo(?string $s, string $a, string $b) : void {
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switch ($s) {
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case $a:
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case $b:
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break;
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}
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}',
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],
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'removeChangedVarsFromReasonableClauses' => [
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'<?php
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function r() : bool {
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return (bool)rand(0, 1);
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}
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function foo(string $s) : void {
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if (($s === "a" || $s === "b")
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&& ($s === "a" || r())
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&& ($s === "b" || r())
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&& (r() || r())
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) {
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// do something
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} else {
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return;
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}
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switch ($s) {
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case "a":
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break;
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case "b":
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break;
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}
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}'
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],
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'preventBadClausesFromBleeding' => [
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'<?php
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function foo (string $s) : void {
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if ($s === "a" && rand(0, 1)) {
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} elseif ($s === "b" && rand(0, 1)) {
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} else {
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return;
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}
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switch ($s) {
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case "a":
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echo "hello";
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break;
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case "b":
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echo "goodbye";
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break;
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}
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}',
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],
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'alwaysReturns' => [
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'<?php
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/**
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* @param "a"|"b" $s
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*/
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function foo(string $s) : string {
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switch ($s) {
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case "a":
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return "hello";
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case "b":
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return "goodbye";
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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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*/
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public function providerFileCheckerInvalidCodeParse()
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{
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return [
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'switchReturnTypeWithFallthroughAndBreak' => [
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'<?php
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class A {
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/** @return bool */
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public function fooFoo() {
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switch (rand(0,10)) {
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case 1:
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break;
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default:
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return true;
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}
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}
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}',
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'error_message' => 'InvalidNullableReturnType',
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],
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'switchReturnTypeWithFallthroughAndConditionalBreak' => [
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'<?php
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class A {
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/** @return bool */
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public function fooFoo() {
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switch (rand(0,10)) {
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case 1:
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if (rand(0,10) === 5) {
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break;
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}
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default:
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return true;
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}
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}
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}',
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'error_message' => 'InvalidNullableReturnType',
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],
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'switchReturnTypeWithNoDefault' => [
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'<?php
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class A {
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/** @return bool */
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public function fooFoo() {
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switch (rand(0,10)) {
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case 1:
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case 2:
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return true;
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}
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}
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}',
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'error_message' => 'InvalidNullableReturnType',
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],
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'getClassArgWrongClass' => [
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'<?php
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class A {
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/** @return void */
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public function fooFoo() {
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}
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}
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class B {
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/** @return void */
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public function barBar() {
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}
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}
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$a = rand(0, 10) ? new A(): new B();
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switch (get_class($a)) {
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case "A":
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$a->barBar();
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break;
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}',
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'error_message' => 'UndefinedMethod',
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],
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'getClassMissingClass' => [
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'<?php
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class A {}
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class B {}
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$a = rand(0, 10) ? new A(): new B();
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switch (get_class($a)) {
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case "C":
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break;
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}',
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'error_message' => 'UndefinedClass',
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],
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'getTypeNotAType' => [
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'<?php
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$a = rand(0, 10) ? 1 : "two";
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switch (gettype($a)) {
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case "int":
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break;
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}',
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'error_message' => 'UnevaluatedCode',
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],
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'getTypeArgWrongArgs' => [
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'<?php
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function testInt(int $var): void {
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}
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function testString(string $var): void {
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}
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$a = rand(0, 10) ? 1 : "two";
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switch (gettype($a)) {
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case "string":
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testInt($a);
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|
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case "integer":
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testString($a);
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}',
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'error_message' => 'InvalidScalarArgument',
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],
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'switchBadMethodCallInCase' => [
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'<?php
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function f(string $p): void { }
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switch (true) {
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case $q = (bool) rand(0,1):
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f($q); // this type problem is not detected
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break;
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}',
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'error_message' => 'InvalidScalarArgument',
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],
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'continueIsNotBreak' => [
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'<?php
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switch(2) {
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case 2:
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echo "two\n";
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continue 2;
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}',
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'error_message' => 'ContinueOutsideLoop',
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],
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'defaultAboveCaseThatBreaks' => [
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'<?php
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function foo(string $a) : string {
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switch ($a) {
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case "a":
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return "hello";
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|
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default:
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case "b":
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break;
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case "c":
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return "goodbye";
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}
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}',
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'error_message' => 'InvalidReturnType',
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],
|
|
'SKIPPED-switchManyGetClassWithRepetitionWithProperLineNumber' => [
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'<?php
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class A {}
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class B extends A {}
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class C extends A {}
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class D extends A {}
|
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|
|
function foo(A $a) : void {
|
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switch(get_class($a)) {
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case B::class:
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case C::class:
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case B::class:
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case C::class:
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case D::class:
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echo "goodbye";
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}
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}',
|
|
'error_message' => 'RedundantCondition - src/somefile.php:10',
|
|
'error_levels' => ['ParadoxicalCondition'],
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],
|
|
'repeatedCaseValue' => [
|
|
'<?php
|
|
$a = rand(0, 1);
|
|
switch ($a) {
|
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case 0:
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break;
|
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|
|
case 0:
|
|
echo "I never get here";
|
|
}',
|
|
'error_message' => 'ParadoxicalCondition - src/somefile.php:7',
|
|
],
|
|
'impossibleCaseValue' => [
|
|
'<?php
|
|
$a = rand(0, 1) ? "a" : "b";
|
|
|
|
switch ($a) {
|
|
case "a":
|
|
break;
|
|
|
|
case "b":
|
|
break;
|
|
|
|
case "c":
|
|
echo "impossible";
|
|
}',
|
|
'error_message' => 'TypeDoesNotContainType - src/somefile.php:11',
|
|
],
|
|
'impossibleCaseDefault' => [
|
|
'<?php
|
|
$a = rand(0, 1) ? "a" : "b";
|
|
|
|
switch ($a) {
|
|
case "a":
|
|
break;
|
|
|
|
case "b":
|
|
break;
|
|
|
|
default:
|
|
echo "impossible";
|
|
}',
|
|
'error_message' => 'ParadoxicalCondition - src/somefile.php:11',
|
|
],
|
|
];
|
|
}
|
|
}
|