mirror of
https://github.com/danog/psalm.git
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343 lines
12 KiB
PHP
343 lines
12 KiB
PHP
<?php
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namespace Psalm\Tests;
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use Psalm\Tests\Traits\InvalidCodeAnalysisTestTrait;
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use Psalm\Tests\Traits\ValidCodeAnalysisTestTrait;
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class MatchTest extends TestCase
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{
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use InvalidCodeAnalysisTestTrait;
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use ValidCodeAnalysisTestTrait;
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public function providerValidCodeParse(): iterable
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{
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return [
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'switchTruthy' => [
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'code' => '<?php
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class A {
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public ?string $a = null;
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public ?string $b = null;
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}
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function f(A $obj): string {
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return match (true) {
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$obj->a !== null => $obj->a,
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$obj->b !== null => $obj->b,
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default => throw new \InvalidArgumentException("$obj->a or $obj->b must be set"),
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};
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}',
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'assertions' => [],
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'ignored_issues' => [],
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'php_version' => '8.0',
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],
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'defaultAboveCase' => [
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'code' => '<?php
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function foo(string $a) : string {
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return match ($a) {
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"a" => "hello",
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default => "yellow",
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"b" => "goodbye",
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};
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}',
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'assertions' => [],
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'ignored_issues' => [],
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'php_version' => '8.0',
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],
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'allMatchedNoRedundantCondition' => [
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'code' => '<?php
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function foo() : string {
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$a = rand(0, 1) ? "a" : "b";
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return match ($a) {
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"a" => "hello",
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"b" => "goodbye",
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};
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}',
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'assertions' => [],
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'ignored_issues' => [],
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'php_version' => '8.0',
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],
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'getClassWithMethod' => [
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'code' => '<?php
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interface Foo {}
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class Bar implements Foo
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{
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public function hello(): string
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{
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return "a";
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}
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}
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function foo(Foo $value): string {
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return match (get_class($value)) {
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Bar::class => $value->hello(),
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default => "b",
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};
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}',
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'assertions' => [],
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'ignored_issues' => [],
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'php_version' => '8.0',
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],
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'MatchWithCount' => [
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'code' => '<?php
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/**
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* @return non-empty-array
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*/
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function test(array $array): array
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{
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return match (\count($array)) {
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0 => throw new \InvalidArgumentException,
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default => $array,
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};
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}',
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'assertions' => [],
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'ignored_issues' => [],
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'php_version' => '8.1',
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],
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'multipleIdenticalChecksInOneArm' => [
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'code' => '<?php
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function foo(?string $t1, string $t2): string
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{
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return match ($t1 ?? $t2) {
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"type1", "type2", "type3" => "1 or 2 or 3",
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"type4", "type5", "type6" => "4 or 5 or 6",
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default => "rest",
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};
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}',
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'assertions' => [],
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'ignored_issues' => [],
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'php_version' => '8.1',
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],
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'multipleInstanceOfConditionsInOneArm' => [
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'code' => '<?php
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interface Foo {}
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class A implements Foo {}
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class B implements Foo {}
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class C {}
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function baz(A|B $_): int {
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return 1;
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}
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function bar(Foo $foo): int {
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return match (true) {
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$foo instanceof A, $foo instanceof B => baz($foo),
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$foo instanceof C => 3,
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default => 0,
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};
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}',
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'assertions' => [],
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'ignored_issues' => [],
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'php_version' => '8.0',
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],
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'multipleTypeCheckConditionsInOneArm' => [
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'code' => '<?php
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function baz(int|string $_): int {
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return 1;
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}
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function bar(mixed $foo): int {
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return match (true) {
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is_string($foo), is_int($foo) => baz($foo),
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default => 0,
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};
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}',
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'assertions' => [],
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'ignored_issues' => [],
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'php_version' => '8.0',
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],
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'matchOnConstClassFetch' => [
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'code' => '<?php
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final class Obj1 {
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public string $propFromObj1 = "str";
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}
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final class Obj2 {
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public int $propFromObj2 = 42;
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}
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function process(Obj1|Obj2 $obj): int|string
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{
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return match ($obj::class) {
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Obj1::class => $obj->propFromObj1,
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Obj2::class => $obj->propFromObj2,
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};
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}',
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'assertions' => [],
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'ignored_issues' => [],
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'php_version' => '8.0',
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],
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];
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}
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public function providerInvalidCodeParse(): iterable
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{
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return [
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'getClassArgWrongClass' => [
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'code' => '<?php
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class A {}
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class B {}
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$a = rand(0, 10) ? new A() : new B();
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$a = match (get_class($a)) {
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A::class => $a->barBar(),
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};',
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'error_message' => 'UndefinedMethod',
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'ignored_issues' => [],
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'php_version' => '8.0',
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],
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'getClassMissingClass' => [
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'code' => '<?php
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class A {}
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class B {}
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$a = rand(0, 10) ? new A() : new B();
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$a = match (get_class($a)) {
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C::class => 5,
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};',
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'error_message' => 'UndefinedClass',
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'ignored_issues' => [],
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'php_version' => '8.0',
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],
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'allMatchedDefaultImpossible' => [
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'code' => '<?php
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function foo() : string {
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$a = rand(0, 1) ? "a" : "b";
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return match ($a) {
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"a" => "hello",
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"b" => "goodbye",
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default => "impossible",
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};
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}',
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'error_message' => 'TypeDoesNotContainType',
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'ignored_issues' => [],
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'php_version' => '8.0',
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],
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'allMatchedAnotherImpossible' => [
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'code' => '<?php
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function foo() : string {
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$a = rand(0, 1) ? "a" : "b";
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return match ($a) {
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"a" => "hello",
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"b" => "goodbye",
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"c" => "impossible",
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};
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}',
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'error_message' => 'TypeDoesNotContainType',
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'ignored_issues' => [],
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'php_version' => '8.0',
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],
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'notAllEnumsMet' => [
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'code' => '<?php
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/**
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* @param "foo"|"bar" $foo
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*/
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function foo(string $foo): string {
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return match ($foo) {
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"foo" => "foo",
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};
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}',
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'error_message' => 'UnhandledMatchCondition',
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'ignored_issues' => [],
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'php_version' => '8.0',
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],
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'notAllConstEnumsMet' => [
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'code' => '<?php
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class Airport {
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const JFK = "jfk";
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const LHR = "lhr";
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const LGA = "lga";
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/**
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* @param self::* $airport
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*/
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public static function getName(string $airport): string {
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return match ($airport) {
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self::JFK => "John F Kennedy Airport",
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self::LHR => "London Heathrow",
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};
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}
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}',
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'error_message' => 'UnhandledMatchCondition',
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'ignored_issues' => [],
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'php_version' => '8.0',
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],
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'paradoxWithDuplicateValue' => [
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'code' => '<?php
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function foo(int $i) : void {
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echo match ($i) {
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1 => 0,
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1 => 1,
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};
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};',
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'error_message' => 'ParadoxicalCondition',
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'ignored_issues' => [],
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'php_version' => '8.0',
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],
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'noCrashWithEmptyMatch' => [
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'code' => '<?php
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function foo(int $i) {
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match ($i) {
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};
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}',
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'error_message' => 'UnhandledMatchCondition',
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'ignored_issues' => [],
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'php_version' => '8.0',
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],
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'exitIsLikeThrow' => [
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'code' => '<?php
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/**
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* @param 1|2|3 $i
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*/
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function foo(int $i): void {
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$a = match ($i) {
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1 => exit(),
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2, 3 => $i,
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};
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$a === "aaa";
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}',
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'error_message' => 'DocblockTypeContradiction',
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'ignored_issues' => [],
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'php_version' => '8.0',
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],
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'matchTrueImpossible' => [
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'code' => '<?php
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$foo = new \stdClass();
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$a = match (true) {
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$foo instanceof \stdClass => 1,
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$foo instanceof \Exception => 1,
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};',
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'error_message' => 'TypeDoesNotContainType',
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'ignored_issues' => [],
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'php_version' => '8.0',
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],
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'multipleInstanceOfConditionsNotMetInOneArm' => [
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'code' => '<?php
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interface Foo {}
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class A implements Foo {}
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class B implements Foo {}
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class C {}
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function baz(C $_): int {
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return 1;
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}
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function bar(Foo $foo): int {
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return match (true) {
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$foo instanceof A, $foo instanceof B => baz($foo),
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$foo instanceof C => 3,
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default => 0,
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};
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}',
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'error_message' => 'InvalidArgument',
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'ignored_issues' => [],
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'php_version' => '8.0',
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],
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];
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}
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}
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