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psalm/tests/MatchTest.php
2023-05-04 17:21:50 +03:00

343 lines
12 KiB
PHP

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