Implementing unset.

.circleci/config.yml

@@ -3,6 +3,7 @@ jobs:
   build:
     environment:
       CC_TEST_REPORTER_ID: 8ec926841c6dfead9c848fd063c569e11b06be11442a8175d588e10607ee2150
+      XDEBUG_MODE: coverage
     docker:
       - image: circleci/php:7-cli-node-browsers-legacy
     working_directory: ~/repo

src/RootedJsonData.php

@@ -87,7 +87,7 @@ public function __toString()
      */
     public function get(string $path)
     {
-        if ($this->__isset($path) === false) {
+        if (!isset($this->{$path})) {
             return null;
         }
         return $this->data->get($path);
@@ -103,7 +103,7 @@ public function get(string $path)
      */
     public function __get(string $path)
     {
-        return $this->data->get($path);
+        return $this->get($path);
     }
 
     /**
@@ -146,9 +146,17 @@ public function __set($path, $value)
     public function __isset($name)
     {
         $notSmart = new JsonObject("{$this->data}");
-        return $notSmart->get($name) ? true : false;
+        $thing = $notSmart->get($name);
+        return ($thing === false) ? false : true;
     }
 
+    public function __unset($name)
+    {
+        $field = str_replace('$.', '', $name);
+        $this->data->remove('$', $field);
+    }
+
+
     public function getSchema()
     {
         return $this->schema;

tests/RootedJsonDatatTest.php

@@ -119,4 +119,12 @@ public function testSchemaGetter()
         $data = new RootedJsonData($json, $schema);
         $this->assertEquals($schema, $data->getSchema());
     }
+
+    public function testUnset()
+    {
+        $json = '{"number":51}';
+        $data = new RootedJsonData($json);
+        unset($data->{'$.number'});
+        $this->assertNull($data->{'$.number'});
+    }
 }