ignore missing parameter and return types in tests

.phpstan.neon

@@ -9,3 +9,17 @@ parameters:
         - vendor
 
     treatPhpDocTypesAsCertain: false
+
+    ignoreErrors:
+        -
+            # Ignore missing or imprecise parameter types for methods in tests
+            message: '(^Method .+ has parameter .+ with no.* type specified.*\.$)'
+            path: tests
+        -
+            # Ignore imprecise return types for methods in tests
+            message: '(^Method .+ return type has no.* type specified.+\.$)'
+            path: tests
+        -
+            # Ignore missing return types for methods in tests
+            message: '(^Method .+ has no return type specified\.$)'
+            path: tests

tests/Unit/Serializer/JsonSerializerTest.php

@@ -63,7 +63,7 @@ public static function getEncodedToNormalizedData(): array
      * @dataProvider getEncodedToNormalizedData
      */
     #[DataProvider('getEncodedToNormalizedData')]
-    public function testCreateFromStringDecodesToExpectedNormalizedData(string $data, $expected): void
+    public function testCreateFromStringDecodesToExpectedNormalizedData(string $data, string $expected): void
     {
         $serializer = JsonSerializer::createFromString($data);
 
@@ -184,7 +184,7 @@ public static function getNormalizedToEncodedData(): array
      * @dataProvider getNormalizedToEncodedData
      */
     #[DataProvider('getNormalizedToEncodedData')]
-    public function testCreateFromArrayEncodesToExpectedString(array $data, $expected): void
+    public function testCreateFromArrayEncodesToExpectedString(array $data, string $expected): void
     {
         $serializer = JsonSerializer::createFromArray($data);
 

tests/Unit/Serializer/XmlSerializerTest.php

@@ -122,9 +122,6 @@ public function testCreateFromArrayEncodesToExpectedString(array $data, $expecte
         $this->assertXmlStringEqualsXmlString($expected, $serializer->__toString());
     }
 
-    /**
-     * @return array<string,mixed>
-     */
     public static function getNormalizedToEncodedData(): array
     {
         return [
@@ -301,8 +298,6 @@ public static function getNormalizedToEncodedData(): array
 
     /**
      * @dataProvider getInvalidSerializedData
-     *
-     * @param array<int,mixed> $data
      */
     #[DataProvider('getInvalidSerializedData')]
     public function testCreateFromArrayWithInvalidDataThrowsException(string $message, array $data): void
@@ -313,9 +308,6 @@ public function testCreateFromArrayWithInvalidDataThrowsException(string $messag
         XmlSerializer::createFromArray($data);
     }
 
-    /**
-     * @return array<string,mixed>
-     */
     public static function getInvalidSerializedData(): array
     {
         return [