Enhancement: Normalize array values without schema definition

CHANGELOG.md

@@ -17,6 +17,7 @@ For a full diff see [`2.0.0...2.1.0`][2.0.0...2.1.0].
 - Adjusted `SchemaNormalizer` to support `anyOf` ([#623]), by [@localheinz]
 - Stopped checking whether `type` property in schema is set to `array` or `object` ([#632]), by [@localheinz]
 - Adjusted `SchemaNormalizer` to normalize additional object properties ([#639]), by [@localheinz]
+- Adjusted `SchemaNormalizer` to normalize array values for which schema does not declare item schema ([#641]), by [@localheinz]
 
 ## [`2.0.0`][2.0.0]
 
@@ -465,6 +466,7 @@ For a full diff see [`5d8b3e2...0.1.0`][5d8b3e2...0.1.0].
 [#623]: https://github.com/ergebnis/json-normalizer/pull/623
 [#632]: https://github.com/ergebnis/json-normalizer/pull/632
 [#639]: https://github.com/ergebnis/json-normalizer/pull/639
+[#641]: https://github.com/ergebnis/json-normalizer/pull/641
 
 [@BackEndTea]: https://github.com/BackEndTea
 [@dependabot]: https://github.com/dependabot

src/SchemaNormalizer.php

@@ -131,25 +131,25 @@ private function normalizeArray(
             $schema,
         );
 
-        /**
-         * @see https://json-schema.org/understanding-json-schema/reference/array.html#items
-         */
-        if (!\property_exists($schema, 'items')) {
-            return $data;
-        }
-
-        $itemSchema = $schema->items;
+        $itemSchema = new \stdClass();
 
         /**
-         * @see https://json-schema.org/understanding-json-schema/reference/array.html#tuple-validation
+         * @see https://json-schema.org/understanding-json-schema/reference/array.html#items
          */
-        if (\is_array($itemSchema)) {
-            return \array_map(function ($item, \stdClass $itemSchema) {
-                return $this->normalizeData(
-                    $item,
-                    $itemSchema,
-                );
-            }, $data, $itemSchema);
+        if (\property_exists($schema, 'items')) {
+            $itemSchema = $schema->items;
+
+            /**
+             * @see https://json-schema.org/understanding-json-schema/reference/array.html#tuple-validation
+             */
+            if (\is_array($itemSchema)) {
+                return \array_map(function ($item, \stdClass $itemSchema) {
+                    return $this->normalizeData(
+                        $item,
+                        $itemSchema,
+                    );
+                }, $data, $itemSchema);
+            }
         }
 
         /**

test/Fixture/SchemaNormalizer/NormalizeNormalizes/Data/IsArray/Schema/IsEmpty/normalized.json

@@ -3,7 +3,7 @@
     "bar",
     "baz",
     {
-        "foo": "bar",
-        "baz": "qux"
+        "baz": "qux",
+        "foo": "bar"
     }
 ]

test/Fixture/SchemaNormalizer/NormalizeNormalizes/Data/IsObject/Schema/IsEmpty/normalized.json

@@ -1,12 +1,12 @@
 {
     "bar": [
         {
-            "foo": 9000,
             "bar": [
                 "foo",
                 "bar",
                 "baz"
-            ]
+            ],
+            "foo": 9000
         },
         {
             "foo": 9001