Fix test code for PHPStan level 9

.phpstan.neon

@@ -1,32 +1,78 @@
 # SPDX-FileCopyrightText: 2015-2023 Artur Weigandt https://wlabs.de/kontakt
 # SPDX-License-Identifier: GPL-3.0-or-later
 
+includes:
+	- vendor/phpstan/phpstan-phpunit/extension.neon
+
 parameters:
-	level: 8
+	level: 9
 
 	paths:
 		- src/
+		- tests/
 
 	scanDirectories:
 		- vendor
 
+	treatPhpDocTypesAsCertain: false
+
 	ignoreErrors:
 		-
-			message: "#^Class Art4\\\\JsonApiClient\\\\Helper\\\\AccessKey extends generic class SplStack but does not specify its types\\: TValue$#"
+			message: "#^Constructor of class Art4\\\\JsonApiClient\\\\V1\\\\ResourceNull has an unused parameter \\$data\\.$#"
 			count: 1
-			path: src/Helper/AccessKey.php
+			path: src/V1/ResourceNull.php
+			# parameter is required by Art4\JsonApiClient\Element
 
 		-
-			message: "#^Property Art4\\\\JsonApiClient\\\\V1\\\\ResourceNull\\:\\:\\$data is never read, only written\\.$#"
+			message: "#^Constructor of class Art4\\\\JsonApiClient\\\\V1\\\\ResourceNull has an unused parameter \\$manager\\.$#"
 			count: 1
 			path: src/V1/ResourceNull.php
+			# parameter is required by Art4\JsonApiClient\Element
 
 		-
-			message: "#^Property Art4\\\\JsonApiClient\\\\V1\\\\ResourceNull\\:\\:\\$manager is never read, only written\\.$#"
+			message: "#^Constructor of class Art4\\\\JsonApiClient\\\\V1\\\\ResourceNull has an unused parameter \\$parent\\.$#"
 			count: 1
 			path: src/V1/ResourceNull.php
+			# parameter is required by Art4\JsonApiClient\Element
 
 		-
-			message: "#^Property Art4\\\\JsonApiClient\\\\V1\\\\ResourceNull\\:\\:\\$parent is never read, only written\\.$#"
+			message: "#^Constructor of an anonymous class has an unused parameter \\$data\\.$#"
 			count: 1
-			path: src/V1/ResourceNull.php
+			path: tests/BC/ElementTest.php
+			# parameter is required by Art4\JsonApiClient\Element
+
+		-
+			message: "#^Constructor of an anonymous class has an unused parameter \\$manager\\.$#"
+			count: 1
+			path: tests/BC/ElementTest.php
+			# parameter is required by Art4\JsonApiClient\Element
+
+		-
+			message: "#^Constructor of an anonymous class has an unused parameter \\$parent\\.$#"
+			count: 1
+			path: tests/BC/ElementTest.php
+			# parameter is required by Art4\JsonApiClient\Element
+
+		-
+			message: "#^Parameter \\#1 \\$string of class Art4\\\\JsonApiClient\\\\Input\\\\RequestStringInput constructor expects string, mixed given\\.$#"
+			count: 1
+			path: tests/Unit/Input/RequestStringInputTest.php
+			# We are providing an invalid parameter to test the exception message
+
+		-
+			message: "#^Parameter \\#1 \\$string of class Art4\\\\JsonApiClient\\\\Input\\\\ResponseStringInput constructor expects string, mixed given\\.$#"
+			count: 1
+			path: tests/Unit/Input/ResponseStringInputTest.php
+			# We are providing an invalid parameter to test the exception message
+
+		-
+			message: "#^Parameter \\#1 \\$key of method Art4\\\\JsonApiClient\\\\V1\\\\ResourceNull\\:\\:has\\(\\) expects Art4\\\\JsonApiClient\\\\Helper\\\\AccessKey\\|int\\|string, array given\\.$#"
+			count: 1
+			path: tests/Unit/V1/ResourceNullTest.php
+			# We are providing an invalid parameter to test the deprecation message
+
+		-
+			message: "#^Parameter \\#1 \\$key of method Art4\\\\JsonApiClient\\\\V1\\\\ResourceNull\\:\\:has\\(\\) expects Art4\\\\JsonApiClient\\\\Helper\\\\AccessKey\\|int\\|string, stdClass given\\.$#"
+			count: 1
+			path: tests/Unit/V1/ResourceNullTest.php
+			# We are providing an invalid parameter to test the deprecation message

composer.json

@@ -18,6 +18,7 @@
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^3.35",
         "phpstan/phpstan": "^1.10",
+        "phpstan/phpstan-phpunit": "^1.3",
         "phpunit/phpunit": "^9 || ^10"
     },
     "autoload": {

src/Accessable.php

@@ -8,6 +8,8 @@
 
 namespace Art4\JsonApiClient;
 
+use Art4\JsonApiClient\Helper\AccessKey;
+
 /**
  * Accessable Interface
  */
@@ -39,7 +41,7 @@ public function has($key);
      *
      * @deprecated `\Art4\JsonApiClient\Accessable::getKeys()` will add `array` as a native return type declaration in v2.0. Do the same in your implementation now to avoid errors.
      *
-     * @return array<string> Keys of all setted values
+     * @return array<string|int> Keys of all setted values
      */
     public function getKeys();
     // public function getKeys(): array;

src/Helper/AccessKey.php

@@ -13,14 +13,16 @@
 /**
  * AccessKey
  *
+ * @extends SplStack<string>
+ *
  * @internal
  */
 final class AccessKey extends SplStack
 {
     /**
      * Transforms the Key to a string
      *
-     * @param mixed $key
+     * @param int|string $key
      *
      * @return AccessKey<string>
      */

src/Helper/AccessableTrait.php

@@ -41,7 +41,7 @@ final protected function set(string $key, $value): void
     /**
      * Returns the keys of all setted values
      *
-     * @return array<string> Keys of all setted values
+     * @return array<int|string> Keys of all setted values
      */
     final public function getKeys(): array
     {
@@ -51,10 +51,19 @@ final public function getKeys(): array
     /**
      * Check if a value exists
      *
-     * @param mixed $key The key
+     * @param int|string|AccessKey<string> $key The key
      */
     final public function has($key): bool
     {
+        if (! is_int($key) && ! is_string($key) && (! is_object($key) || ! $key instanceof AccessKey)) {
+            trigger_error(sprintf(
+                '%s::has(): Providing Argument #1 ($key) as %s is deprecated since 1.2.0, please provide as int|string|%s instead.',
+                get_class($this),
+                gettype($key),
+                AccessKey::class
+            ), \E_USER_DEPRECATED);
+        }
+
         $key = $this->parseKey($key);
 
         $string = $key->shift();
@@ -82,7 +91,7 @@ final public function has($key): bool
     /**
      * Get a value by a key
      *
-     * @param mixed $key The key
+     * @param int|string|AccessKey<string> $key The key
      *
      * @return mixed
      */
@@ -126,7 +135,7 @@ private function getValue(string $key)
     /**
      * Parse a dot.notated.key to an object
      *
-     * @param string|AccessKey<string> $key The key
+     * @param int|string|AccessKey<string> $key The key
      *
      * @return AccessKey<string> The parsed key
      */

src/Serializer/ArraySerializer.php

@@ -35,7 +35,7 @@ public function __construct(array $params = [])
     /**
      * Convert data in an array
      *
-     * @return array<string, mixed>|null
+     * @return array<int|string, mixed>|null
      */
     public function serialize(Accessable $data): ?array
     {

src/V1/Attributes.php

@@ -8,9 +8,10 @@
 
 namespace Art4\JsonApiClient\V1;
 
-use Art4\JsonApiClient\Helper\AbstractElement;
 use Art4\JsonApiClient\Exception\AccessException;
 use Art4\JsonApiClient\Exception\ValidationException;
+use Art4\JsonApiClient\Helper\AbstractElement;
+use Art4\JsonApiClient\Helper\AccessKey;
 
 /**
  * Attributes Object
@@ -50,7 +51,7 @@ protected function parse($object): void
     /**
      * Get a value by the key of this object
      *
-     * @param string $key The key of the value
+     * @param int|string|AccessKey<string> $key The key of the value
      *
      * @return mixed The value
      */

src/V1/Document.php

@@ -9,9 +9,10 @@
 namespace Art4\JsonApiClient\V1;
 
 use Art4\JsonApiClient\Accessable;
-use Art4\JsonApiClient\Helper\AbstractElement;
 use Art4\JsonApiClient\Exception\AccessException;
 use Art4\JsonApiClient\Exception\ValidationException;
+use Art4\JsonApiClient\Helper\AbstractElement;
+use Art4\JsonApiClient\Helper\AccessKey;
 
 /**
  * Document Top Level Object
@@ -73,7 +74,7 @@ protected function parse($object): void
     /**
      * Get a value by the key of this object
      *
-     * @param string $key The key of the value
+     * @param int|string|AccessKey<string> $key The key of the value
      *
      * @return mixed The value
      */

src/V1/DocumentLink.php

@@ -8,9 +8,10 @@
 
 namespace Art4\JsonApiClient\V1;
 
-use Art4\JsonApiClient\Helper\AbstractElement;
 use Art4\JsonApiClient\Exception\AccessException;
 use Art4\JsonApiClient\Exception\ValidationException;
+use Art4\JsonApiClient\Helper\AbstractElement;
+use Art4\JsonApiClient\Helper\AccessKey;
 
 /**
  * Document Link Object
@@ -103,7 +104,7 @@ protected function parse($object): void
     /**
      * Get a value by the key of this object
      *
-     * @param string $key The key of the value
+     * @param int|string|AccessKey<string> $key The key of the value
      *
      * @return mixed The value
      */

src/V1/Error.php

@@ -8,9 +8,10 @@
 
 namespace Art4\JsonApiClient\V1;
 
-use Art4\JsonApiClient\Helper\AbstractElement;
 use Art4\JsonApiClient\Exception\AccessException;
 use Art4\JsonApiClient\Exception\ValidationException;
+use Art4\JsonApiClient\Helper\AbstractElement;
+use Art4\JsonApiClient\Helper\AccessKey;
 
 /**
  * Error Object
@@ -105,7 +106,7 @@ protected function parse($object): void
     /**
      * Get a value by the key of this object
      *
-     * @param string $key The key of the value
+     * @param int|string|AccessKey<string> $key The key of the value
      *
      * @return mixed The value
      */

src/V1/ErrorCollection.php

@@ -8,9 +8,10 @@
 
 namespace Art4\JsonApiClient\V1;
 
-use Art4\JsonApiClient\Helper\AbstractElement;
 use Art4\JsonApiClient\Exception\AccessException;
 use Art4\JsonApiClient\Exception\ValidationException;
+use Art4\JsonApiClient\Helper\AbstractElement;
+use Art4\JsonApiClient\Helper\AccessKey;
 
 /**
  * Error Collection Object
@@ -44,7 +45,7 @@ protected function parse($object): void
     /**
      * Get a value by the key of this document
      *
-     * @param string $key The key of the value
+     * @param int|string|AccessKey<string> $key The key of the value
      *
      * @return mixed The value
      */

src/V1/ErrorLink.php

@@ -8,9 +8,10 @@
 
 namespace Art4\JsonApiClient\V1;
 
-use Art4\JsonApiClient\Helper\AbstractElement;
 use Art4\JsonApiClient\Exception\AccessException;
 use Art4\JsonApiClient\Exception\ValidationException;
+use Art4\JsonApiClient\Helper\AbstractElement;
+use Art4\JsonApiClient\Helper\AccessKey;
 
 /**
  * Error Link Object
@@ -63,7 +64,7 @@ protected function parse($object): void
     /**
      * Get a value by the key of this object
      *
-     * @param string $key The key of the value
+     * @param int|string|AccessKey<string> $key The key of the value
      *
      * @return mixed The value
      */

src/V1/ErrorSource.php

@@ -8,9 +8,10 @@
 
 namespace Art4\JsonApiClient\V1;
 
-use Art4\JsonApiClient\Helper\AbstractElement;
 use Art4\JsonApiClient\Exception\AccessException;
 use Art4\JsonApiClient\Exception\ValidationException;
+use Art4\JsonApiClient\Helper\AbstractElement;
+use Art4\JsonApiClient\Helper\AccessKey;
 
 /**
  * Error Source Object
@@ -52,7 +53,7 @@ protected function parse($object): void
     /**
      * Get a value by the key of this document
      *
-     * @param string $key The key of the value
+     * @param int|string|AccessKey<string> $key The key of the value
      *
      * @return mixed The value
      */

src/V1/Jsonapi.php

@@ -8,9 +8,10 @@
 
 namespace Art4\JsonApiClient\V1;
 
-use Art4\JsonApiClient\Helper\AbstractElement;
 use Art4\JsonApiClient\Exception\AccessException;
 use Art4\JsonApiClient\Exception\ValidationException;
+use Art4\JsonApiClient\Helper\AbstractElement;
+use Art4\JsonApiClient\Helper\AccessKey;
 
 /**
  * JSON API Object
@@ -48,7 +49,7 @@ protected function parse($object): void
     /**
      * Get a value by the key of this object
      *
-     * @param string $key The key of the value
+     * @param int|string|AccessKey<string> $key The key of the value
      *
      * @return mixed The value
      */

src/V1/Link.php

@@ -8,9 +8,10 @@
 
 namespace Art4\JsonApiClient\V1;
 
-use Art4\JsonApiClient\Helper\AbstractElement;
 use Art4\JsonApiClient\Exception\AccessException;
 use Art4\JsonApiClient\Exception\ValidationException;
+use Art4\JsonApiClient\Helper\AbstractElement;
+use Art4\JsonApiClient\Helper\AccessKey;
 
 /**
  * Link Object
@@ -44,7 +45,7 @@ protected function parse($object): void
     /**
      * Get a value by the key of this object
      *
-     * @param string $key The key of the value
+     * @param int|string|AccessKey<string> $key The key of the value
      *
      * @return mixed The value
      */
@@ -60,8 +61,7 @@ public function get($key)
     /**
      * Set a link
      *
-     * @param string        $name The Name
-     * @param string|object $link The Link
+     * @param mixed $link The Link
      */
     private function setAsLink(string $name, $link): void
     {