🐛 Fix for json path expecting an array (#41)

I believe simple assertions worked because the top level object was being cast into an array, but if any specific path returned an object you'd get a type error.

Author: tjlytle

src/Constraint/JsonValueMatches.php

@@ -62,7 +62,7 @@ public function toString(): string
     protected function matches($other): bool
     {
         if (is_string($other)) {
-            $other = json_decode($other);
+            $other = json_decode($other, true);
         }
 
         $result = (new JSONPath($other))->find($this->jsonPath);

tests/Functional/JsonValueMatchesTest.php

@@ -47,6 +47,14 @@ public function dataForJsonValueEquals()
             array($json, '$.products[*].name', 'Roggenbrot'),
             array($json, '$.products[0].name', 'Roggenbrot'),
             array($json, '$.products.*.name', 'Graubrot'),
+            array($json, '$.owner', [
+                'identifier' => '4321',
+                'name' => 'Max Mustermann',
+            ]),
+            array(json_encode($json), '$.owner', [
+                'identifier' => '4321',
+                'name' => 'Max Mustermann',
+            ]),
         ];
     }
 
@@ -64,6 +72,8 @@ public function dataForJsonValueEqualsCanFail()
             array($json, '$.owner.name', 'Horst Mustermann'),
             array($json, '$.products.*.name', 'Weißbrot'),
             array($json, '$.products[0].name', 'Graubrot'),
+            array($json, '$.owner', []),
+            array(json_encode($json), '$.owner', []),
         ];
     }