diff --git a/library/Exceptions/ArrayValException.php b/library/Exceptions/ArrayValException.php
index de1228c1..c7b5b028 100644
--- a/library/Exceptions/ArrayValException.php
+++ b/library/Exceptions/ArrayValException.php
@@ -13,14 +13,21 @@ declare(strict_types=1);
 
 namespace Respect\Validation\Exceptions;
 
-class ArrayValException extends ValidationException
+/**
+ * @author Alexandre Gomes Gaigalas <alexandre@gaigalas.net>
+ * @author Henrique Moody <henriquemoody@gmail.com>
+ */
+final class ArrayValException extends ValidationException
 {
+    /**
+     * {@inheritdoc}
+     */
     public static $defaultTemplates = [
         self::MODE_DEFAULT => [
-            self::STANDARD => '{{name}} must be an array',
+            self::STANDARD => '{{name}} must be an array value',
         ],
         self::MODE_NEGATIVE => [
-            self::STANDARD => '{{name}} must not be an array',
+            self::STANDARD => '{{name}} must not be an array value',
         ],
     ];
 }
diff --git a/library/Rules/ArrayVal.php b/library/Rules/ArrayVal.php
index 5607f0c4..753cc912 100644
--- a/library/Rules/ArrayVal.php
+++ b/library/Rules/ArrayVal.php
@@ -16,8 +16,17 @@ namespace Respect\Validation\Rules;
 use ArrayAccess;
 use SimpleXMLElement;
 
-class ArrayVal extends AbstractRule
+/**
+ * Validates if the input is an array or if the input can be used as an array (instance of `ArrayAccess` or `SimpleXMLElement`).
+ *
+ * @author Alexandre Gomes Gaigalas <alexandre@gaigalas.net>
+ * @author Henrique Moody <henriquemoody@gmail.com>
+ */
+final class ArrayVal extends AbstractRule
 {
+    /**
+     * {@inheritdoc}
+     */
     public function validate($input): bool
     {
         return is_array($input) || $input instanceof ArrayAccess || $input instanceof SimpleXMLElement;
diff --git a/tests/integration/rules/arrayVal.phpt b/tests/integration/rules/arrayVal.phpt
new file mode 100644
index 00000000..3e820a0f
--- /dev/null
+++ b/tests/integration/rules/arrayVal.phpt
@@ -0,0 +1,38 @@
+--FILE--
+<?php
+
+require 'vendor/autoload.php';
+
+use Respect\Validation\Exceptions\NestedValidationException;
+use Respect\Validation\Exceptions\ArrayValException;
+use Respect\Validation\Validator as v;
+
+try {
+    v::arrayVal()->check('Bla %123');
+} catch (ArrayValException $exception) {
+    echo $exception->getMainMessage().PHP_EOL;
+}
+
+try {
+    v::not(v::arrayVal())->check([42]);
+} catch (ArrayValException $exception) {
+    echo $exception->getMainMessage().PHP_EOL;
+}
+
+try {
+    v::arrayVal()->assert(new stdClass());
+} catch (NestedValidationException $exception) {
+    echo $exception->getFullMessage().PHP_EOL;
+}
+
+try {
+    v::not(v::arrayVal())->assert(new ArrayObject([2, 3]));
+} catch (NestedValidationException $exception) {
+    echo $exception->getFullMessage().PHP_EOL;
+}
+?>
+--EXPECTF--
+"Bla %123" must be an array value
+`{ 42 }` must not be an array value
+- `[object] (stdClass: { })` must be an array value
+- `[traversable] (ArrayObject: { 2, 3 })` must not be an array value
diff --git a/tests/integration/rules/arrayVal_1.phpt b/tests/integration/rules/arrayVal_1.phpt
deleted file mode 100644
index a76ca0a5..00000000
--- a/tests/integration/rules/arrayVal_1.phpt
+++ /dev/null
@@ -1,11 +0,0 @@
---FILE--
-<?php
-
-require 'vendor/autoload.php';
-
-use Respect\Validation\Validator as v;
-
-v::arrayVal()->assert(['asdf', 'lkjh']);
-v::arrayVal()->check(new ArrayObject([2, 3]));
-?>
---EXPECTF--
diff --git a/tests/integration/rules/arrayVal_2.phpt b/tests/integration/rules/arrayVal_2.phpt
deleted file mode 100644
index bcf9fa92..00000000
--- a/tests/integration/rules/arrayVal_2.phpt
+++ /dev/null
@@ -1,16 +0,0 @@
---FILE--
-<?php
-
-require 'vendor/autoload.php';
-
-use Respect\Validation\Exceptions\ArrayValException;
-use Respect\Validation\Validator as v;
-
-try {
-    v::arrayVal()->check('Bla %123');
-} catch (ArrayValException $exception) {
-    echo $exception->getMainMessage();
-}
-?>
---EXPECTF--
-"Bla %123" must be an array
diff --git a/tests/integration/rules/arrayVal_3.phpt b/tests/integration/rules/arrayVal_3.phpt
deleted file mode 100644
index ef1be452..00000000
--- a/tests/integration/rules/arrayVal_3.phpt
+++ /dev/null
@@ -1,16 +0,0 @@
---FILE--
-<?php
-
-require 'vendor/autoload.php';
-
-use Respect\Validation\Exceptions\AllOfException;
-use Respect\Validation\Validator as v;
-
-try {
-    v::arrayVal()->assert(new stdClass());
-} catch (AllOfException $exception) {
-    echo $exception->getFullMessage();
-}
-?>
---EXPECTF--
-- `[object] (stdClass: { })` must be an array
diff --git a/tests/integration/rules/arrayVal_4.phpt b/tests/integration/rules/arrayVal_4.phpt
deleted file mode 100644
index 330b4bf6..00000000
--- a/tests/integration/rules/arrayVal_4.phpt
+++ /dev/null
@@ -1,16 +0,0 @@
---FILE--
-<?php
-
-require 'vendor/autoload.php';
-
-use Respect\Validation\Exceptions\ArrayValException;
-use Respect\Validation\Validator as v;
-
-try {
-    v::not(v::arrayVal())->check([42]);
-} catch (ArrayValException $exception) {
-    echo $exception->getMainMessage();
-}
-?>
---EXPECTF--
-`{ 42 }` must not be an array
diff --git a/tests/integration/rules/arrayVal_5.phpt b/tests/integration/rules/arrayVal_5.phpt
deleted file mode 100644
index 0f4194b8..00000000
--- a/tests/integration/rules/arrayVal_5.phpt
+++ /dev/null
@@ -1,16 +0,0 @@
---FILE--
-<?php
-
-require 'vendor/autoload.php';
-
-use Respect\Validation\Exceptions\AllOfException;
-use Respect\Validation\Validator as v;
-
-try {
-    v::not(v::arrayVal())->assert(new ArrayObject([2, 3]));
-} catch (AllOfException $exception) {
-    echo $exception->getFullMessage();
-}
-?>
---EXPECTF--
-- `[traversable] (ArrayObject: { 2, 3 })` must not be an array
diff --git a/tests/unit/Rules/ArrayValTest.php b/tests/unit/Rules/ArrayValTest.php
index b7307683..a55c91c6 100644
--- a/tests/unit/Rules/ArrayValTest.php
+++ b/tests/unit/Rules/ArrayValTest.php
@@ -22,8 +22,11 @@ use stdClass;
  * @group  rule
  * @covers \Respect\Validation\Rules\ArrayVal
  */
-class ArrayValTest extends RuleTestCase
+final class ArrayValTest extends RuleTestCase
 {
+    /**
+     * {@inheritdoc}
+     */
     public function providerForValidInput(): array
     {
         $rule = new ArrayVal();
@@ -36,6 +39,9 @@ class ArrayValTest extends RuleTestCase
         ];
     }
 
+    /**
+     * {@inheritdoc}
+     */
     public function providerForInvalidInput(): array
     {
         $rule = new ArrayVal();