Invalid string validation (#704)

* Add test case for invalid string type validation

* docs: add changelog entry

---------

Co-authored-by: Danny van der Sluijs <danny.van.der.sluijs@infi.nl>

CHANGELOG.md

@@ -8,6 +8,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 ### Added
 - Add return types in the test suite ([#748](https://github.com/jsonrainbow/json-schema/pull/748))
+- Add test case for validating array of strings with objects ([#704](https://github.com/jsonrainbow/json-schema/pull/704))
 
 ### Fixed
 - Correct misconfigured mocks in JsonSchema\Tests\Uri\UriRetrieverTest ([#741](https://github.com/jsonrainbow/json-schema/pull/741))

tests/Constraints/ArraysTest.php

@@ -116,6 +116,19 @@ class ArraysTest extends BaseTestCase
                         }
                     }
                 }'
+            ],
+            [
+                '{"data": [{"not_a_string_but_object":"string_but_in_object"}]}',
+                '{
+                    "type": "object",
+                    "properties": {
+                        "data": {
+                            "type": "array",
+                            "items": {"type":"string"},
+                            "additionalItems": false
+                        }
+                    }
+                }'
             ]
         ];
     }