diff --git a/.codacy.yml b/.codacy.yml
new file mode 100644
index 0000000..f27de9c
--- /dev/null
+++ b/.codacy.yml
@@ -0,0 +1,5 @@
+exclude_paths:
+  - ".github/**"
+  - "example/**"
+  - "test/**"
+
diff --git a/composer.json b/composer.json
index 1d3a171..5f43176 100644
--- a/composer.json
+++ b/composer.json
@@ -27,6 +27,20 @@
 		}
 	},
 
+	"scripts": {
+		"phpunit": "vendor/bin/phpunit --configuration phpunit.xml",
+		"phpunit:coverage": "XDEBUG_MODE=coverage vendor/bin/phpunit --configuration phpunit.xml --coverage-text",
+		"phpstan": "vendor/bin/phpstan analyse --level 6 src --memory-limit 256M",
+		"phpcs": "vendor/bin/phpcs src --standard=phpcs.xml",
+		"phpmd": "vendor/bin/phpmd src/ text phpmd.xml",
+		"test": [
+			"@phpunit",
+			"@phpstan",
+			"@phpcs",
+			"@phpmd"
+		]
+	},
+
 	"funding": [
 		{
 			"type": "github",
diff --git a/composer.lock b/composer.lock
index 40100c0..25111e0 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,30 +4,30 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "2b25525793bab1c67e83d0dc7710d967",
+    "content-hash": "5ab72df41b5c0d1085390a3a6d995325",
     "packages": [
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             "name": "justinrainbow/json-schema",
-            "version": "6.4.1",
+            "version": "v6.7.2",
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                 "url": "https://github.com/jsonrainbow/json-schema.git",
-                "reference": "35d262c94959571e8736db1e5c9bc36ab94ae900"
+                "reference": "6fea66c7204683af437864e7c4e7abf383d14bc0"
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-                "reference": "35d262c94959571e8736db1e5c9bc36ab94ae900",
+                "url": "https://api.github.com/repos/jsonrainbow/json-schema/zipball/6fea66c7204683af437864e7c4e7abf383d14bc0",
+                "reference": "6fea66c7204683af437864e7c4e7abf383d14bc0",
                 "shasum": ""
             },
             "require": {
                 "ext-json": "*",
-                "marc-mabe/php-enum": "^4.0",
+                "marc-mabe/php-enum": "^4.4",
                 "php": "^7.2 || ^8.0"
             },
             "require-dev": {
                 "friendsofphp/php-cs-fixer": "3.3.0",
-                "json-schema/json-schema-test-suite": "1.2.0",
+                "json-schema/json-schema-test-suite": "^23.2",
                 "marc-mabe/php-enum-phpstan": "^2.0",
                 "phpspec/prophecy": "^1.19",
                 "phpstan/phpstan": "^1.12",
@@ -77,22 +77,22 @@
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-                "source": "https://github.com/jsonrainbow/json-schema/tree/6.4.1"
+                "source": "https://github.com/jsonrainbow/json-schema/tree/v6.7.2"
             },
-            "time": "2025-04-04T13:08:07+00:00"
+            "time": "2026-02-15T15:06:22+00:00"
         },
         {
             "name": "marc-mabe/php-enum",
-            "version": "v4.7.1",
+            "version": "v4.7.2",
             "source": {
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                 "url": "https://github.com/marc-mabe/php-enum.git",
-                "reference": "7159809e5cfa041dca28e61f7f7ae58063aae8ed"
+                "reference": "bb426fcdd65c60fb3638ef741e8782508fda7eef"
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-                "reference": "7159809e5cfa041dca28e61f7f7ae58063aae8ed",
+                "url": "https://api.github.com/repos/marc-mabe/php-enum/zipball/bb426fcdd65c60fb3638ef741e8782508fda7eef",
+                "reference": "bb426fcdd65c60fb3638ef741e8782508fda7eef",
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@@ -150,61 +150,9 @@
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                 "issues": "https://github.com/marc-mabe/php-enum/issues",
-                "source": "https://github.com/marc-mabe/php-enum/tree/v4.7.1"
+                "source": "https://github.com/marc-mabe/php-enum/tree/v4.7.2"
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-            "time": "2024-11-28T04:54:44+00:00"
-        },
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-            "version": "v1.0.3",
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-                "phpstan/phpstan": "^1.10",
-                "phpunit/phpunit": "^10.1",
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-            },
-            "type": "library",
-            "autoload": {
-                "psr-4": {
-                    "Gt\\Cookie\\": "./src"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Greg Bowler",
-                    "email": "greg.bowler@g105b.com"
-                }
-            ],
-            "description": "Object oriented cookie handler.",
-            "support": {
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-                "source": "https://github.com/phpgt/Cookie/tree/v1.0.3"
-            },
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-                    "type": "github"
-                }
-            ],
-            "time": "2025-03-07T17:42:38+00:00"
+            "time": "2025-09-14T11:18:39+00:00"
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@@ -262,27 +210,29 @@
         },
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-            "version": "v1.1.2",
+            "version": "v1.1.9",
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                 "url": "https://github.com/PhpGt/Http.git",
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-                "reference": "80683cebb3c9490f0f7eb71fa5f25cc85a9eb5ed",
+                "url": "https://api.github.com/repos/PhpGt/Http/zipball/05566d327ba99f8d99ef17700f3b94164de8c3d7",
+                "reference": "05566d327ba99f8d99ef17700f3b94164de8c3d7",
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-                "phpgt/cookie": "*",
-                "phpgt/input": "*",
-                "psr/http-message": "^1.0.1",
-                "willdurand/negotiation": "^2.3"
+                "php": ">=8.1",
+                "phpgt/input": "^v1",
+                "psr/http-message": "^v1.0.1",
+                "willdurand/negotiation": "v3.1.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "8.*"
+                "phpmd/phpmd": "^2.13",
+                "phpstan/phpstan": "^1.9",
+                "phpunit/phpunit": "^10.0",
+                "squizlabs/php_codesniffer": "^3.7"
             },
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             "autoload": {
@@ -297,22 +247,28 @@
             "description": "PSR-7 HTTP message implementation.",
             "support": {
                 "issues": "https://github.com/PhpGt/Http/issues",
-                "source": "https://github.com/PhpGt/Http/tree/v1.1.2"
+                "source": "https://github.com/PhpGt/Http/tree/v1.1.9"
             },
-            "time": "2020-06-16T13:13:25+00:00"
+            "funding": [
+                {
+                    "url": "https://github.com/sponsors/PhpGt",
+                    "type": "github"
+                }
+            ],
+            "time": "2023-03-10T15:04:04+00:00"
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-            "version": "v2.1.0",
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-                "url": "https://github.com/PhpGt/Json.git",
-                "reference": "ba557c441a01e32a5040380556ee6e7e59599dfd"
+                "url": "https://github.com/phpgt/Json.git",
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-                "reference": "ba557c441a01e32a5040380556ee6e7e59599dfd",
+                "url": "https://api.github.com/repos/phpgt/Json/zipball/522fb4fc665d658531ee287380adaaef1339b202",
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@@ -345,8 +301,8 @@
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-                "issues": "https://github.com/PhpGt/Json/issues",
-                "source": "https://github.com/PhpGt/Json/tree/v2.1.0"
+                "issues": "https://github.com/phpgt/Json/issues",
+                "source": "https://github.com/phpgt/Json/tree/v2.2.0"
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@@ -354,20 +310,20 @@
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-            "time": "2025-03-01T16:17:53+00:00"
+            "time": "2025-12-09T21:35:51+00:00"
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-            "version": "v1.3.2",
+            "version": "v1.3.3",
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-                "url": "https://github.com/PhpGt/TypeSafeGetter.git",
-                "reference": "f760c05a37b1cc188dcbf800c5fdfab8a926b4b0"
+                "url": "https://github.com/phpgt/TypeSafeGetter.git",
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-                "reference": "f760c05a37b1cc188dcbf800c5fdfab8a926b4b0",
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@@ -397,8 +353,8 @@
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-                "issues": "https://github.com/PhpGt/TypeSafeGetter/issues",
-                "source": "https://github.com/PhpGt/TypeSafeGetter/tree/v1.3.2"
+                "issues": "https://github.com/phpgt/TypeSafeGetter/issues",
+                "source": "https://github.com/phpgt/TypeSafeGetter/tree/v1.3.3"
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@@ -406,7 +362,7 @@
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-            "time": "2023-04-28T14:42:27+00:00"
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@@ -463,28 +419,28 @@
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-                "source": "https://github.com/willdurand/Negotiation/tree/2.x"
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-            "time": "2017-05-14T17:21:12+00:00"
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@@ -666,16 +622,16 @@
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@@ -754,7 +710,7 @@
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@@ -778,9 +734,9 @@
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-                "source": "https://github.com/nikic/PHP-Parser/tree/v5.4.0"
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-            "time": "2024-12-30T11:07:19+00:00"
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@@ -1048,16 +1004,11 @@
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@@ -1102,7 +1053,7 @@
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@@ -1807,16 +1758,16 @@
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             ],
-            "time": "2024-09-25T14:20:29+00:00"
+            "time": "2025-07-15T11:30:57+00:00"
         },
         {
             "name": "symfony/var-exporter",
-            "version": "v7.2.6",
+            "version": "v7.4.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/var-exporter.git",
-                "reference": "422b8de94c738830a1e071f59ad14d67417d7007"
+                "reference": "03a60f169c79a28513a78c967316fbc8bf17816f"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/var-exporter/zipball/422b8de94c738830a1e071f59ad14d67417d7007",
-                "reference": "422b8de94c738830a1e071f59ad14d67417d7007",
+                "url": "https://api.github.com/repos/symfony/var-exporter/zipball/03a60f169c79a28513a78c967316fbc8bf17816f",
+                "reference": "03a60f169c79a28513a78c967316fbc8bf17816f",
                 "shasum": ""
             },
             "require": {
-                "php": ">=8.2"
+                "php": ">=8.2",
+                "symfony/deprecation-contracts": "^2.5|^3"
             },
             "require-dev": {
-                "symfony/property-access": "^6.4|^7.0",
-                "symfony/serializer": "^6.4|^7.0",
-                "symfony/var-dumper": "^6.4|^7.0"
+                "symfony/property-access": "^6.4|^7.0|^8.0",
+                "symfony/serializer": "^6.4|^7.0|^8.0",
+                "symfony/var-dumper": "^6.4|^7.0|^8.0"
             },
             "type": "library",
             "autoload": {
@@ -3226,7 +3234,7 @@
                 "serialize"
             ],
             "support": {
-                "source": "https://github.com/symfony/var-exporter/tree/v7.2.6"
+                "source": "https://github.com/symfony/var-exporter/tree/v7.4.0"
             },
             "funding": [
                 {
@@ -3237,25 +3245,29 @@
                     "url": "https://github.com/fabpot",
                     "type": "github"
                 },
+                {
+                    "url": "https://github.com/nicolas-grekas",
+                    "type": "github"
+                },
                 {
                     "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
                     "type": "tidelift"
                 }
             ],
-            "time": "2025-05-02T08:36:00+00:00"
+            "time": "2025-09-11T10:15:23+00:00"
         },
         {
             "name": "theseer/tokenizer",
-            "version": "1.2.3",
+            "version": "1.3.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/theseer/tokenizer.git",
-                "reference": "737eda637ed5e28c3413cb1ebe8bb52cbf1ca7a2"
+                "reference": "b7489ce515e168639d17feec34b8847c326b0b3c"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/theseer/tokenizer/zipball/737eda637ed5e28c3413cb1ebe8bb52cbf1ca7a2",
-                "reference": "737eda637ed5e28c3413cb1ebe8bb52cbf1ca7a2",
+                "url": "https://api.github.com/repos/theseer/tokenizer/zipball/b7489ce515e168639d17feec34b8847c326b0b3c",
+                "reference": "b7489ce515e168639d17feec34b8847c326b0b3c",
                 "shasum": ""
             },
             "require": {
@@ -3284,7 +3296,7 @@
             "description": "A small library for converting tokenized PHP source code into XML and potentially other formats",
             "support": {
                 "issues": "https://github.com/theseer/tokenizer/issues",
-                "source": "https://github.com/theseer/tokenizer/tree/1.2.3"
+                "source": "https://github.com/theseer/tokenizer/tree/1.3.1"
             },
             "funding": [
                 {
@@ -3292,7 +3304,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2024-03-03T12:36:25+00:00"
+            "time": "2025-11-17T20:03:58+00:00"
         }
     ],
     "aliases": [],
@@ -3301,8 +3313,8 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
-        "php": ">=8.1"
+        "php": ">=8.3"
     },
     "platform-dev": {},
-    "plugin-api-version": "2.6.0"
+    "plugin-api-version": "2.9.0"
 }
diff --git a/src/DataNotFileUploadException.php b/src/DataNotFileUploadException.php
index 3651b2c..5e5d16c 100644
--- a/src/DataNotFileUploadException.php
+++ b/src/DataNotFileUploadException.php
@@ -1,4 +1,19 @@
 <?php
 namespace Gt\Input;
 
-class DataNotFileUploadException extends InputException {}
+use Throwable;
+
+class DataNotFileUploadException extends InputException {
+	public function __construct(
+		string $message = "",
+		int $code = 0,
+		?Throwable $previous = null,
+	) {
+		parent::__construct(
+			"Key \"$message\" is not a FileUpload - "
+			."does your form have the enctype=\"multipart/form-data\" attribute?",
+			$code,
+			$previous
+		);
+	}
+}
diff --git a/src/InputData/KeyValueArrayAccess.php b/src/InputData/KeyValueArrayAccess.php
index 7102f83..ef04736 100644
--- a/src/InputData/KeyValueArrayAccess.php
+++ b/src/InputData/KeyValueArrayAccess.php
@@ -13,6 +13,7 @@ public function offsetGet($offset):mixed {
 		if($this instanceof FileUploadInputData) {
 			return $this->getFile($offset);
 		}
+		/** @phpstan-ignore-next-line */
 		elseif(is_a($this, Input::class) || is_a($this, InputData::class)) {
 			if($this->contains($offset)) {
 				return $this->get($offset);
diff --git a/src/InputValueGetter.php b/src/InputValueGetter.php
index 71466df..ba7e613 100644
--- a/src/InputValueGetter.php
+++ b/src/InputValueGetter.php
@@ -77,6 +77,9 @@ public function getFile(string $key):?FileUpload {
 		$file = $params[$key] ?? null;
 
 		if(is_null($file)) {
+			if($this->bodyParameters->contains($key)) {
+				throw new DataNotFileUploadException($key);
+			}
 			return null;
 		}
 
@@ -96,6 +99,10 @@ public function getFile(string $key):?FileUpload {
 	public function getMultipleFile(string $key):array {
 		$multipleFileUpload = $this->get($key);
 		if(!$multipleFileUpload instanceof MultipleInputDatum) {
+			if($this->bodyParameters->contains($key)) {
+				throw new DataNotFileUploadException($key);
+			}
+
 			throw new InputException("Parameter '$key' is not a multiple file input.");
 		}
 
diff --git a/test/phpunit/InputTest.php b/test/phpunit/InputTest.php
index e6fbda5..b0f5794 100644
--- a/test/phpunit/InputTest.php
+++ b/test/phpunit/InputTest.php
@@ -3,9 +3,9 @@
 
 use DateTime;
 use Gt\Input\DataNotCompatibleFormatException;
+use Gt\Input\DataNotFileUploadException;
 use Gt\Input\Input;
 use Gt\Input\InputData\Datum\FileUpload;
-use Gt\Input\InputData\Datum\InputDatum;
 use Gt\Input\InputData\Datum\StreamNotAvailableException;
 use Gt\Input\InputData\InputData;
 use Gt\Input\InvalidInputMethodException;
@@ -156,6 +156,13 @@ public function testGetFile_null():void {
 		self::assertNull($file);
 	}
 
+	public function testGetFile_uploadInPostWithoutFiles_throwsHelpfulException():void {
+		$input = new Input([], ["upload" => "photo.jpg"], []);
+		self::expectException(DataNotFileUploadException::class);
+		self::expectExceptionMessage('enctype="multipart/form-data"');
+		$input->getFile("upload");
+	}
+
 	/** @dataProvider dataRandomGetPost */
 	public function testGetInvalidDataType(array $get, array $post):void {
 		self::expectException(InvalidInputMethodException::class);