Merge pull request #669 from schmittjoh/not-initialized-context

Groups context might be not initialized

src/JMS/Serializer/Context.php

@@ -256,6 +256,10 @@ public function getMetadataStack()
      */
     public function getCurrentPath()
     {
+        if (!$this->metadataStack) {
+            return array();
+        }
+
         $paths = array();
         foreach ($this->metadataStack as $metadata) {
             if ($metadata instanceof PropertyMetadata) {

tests/JMS/Serializer/Tests/Exclusion/GroupsExclusionStrategyTest.php

@@ -0,0 +1,68 @@
+<?php
+
+/*
+ * Copyright 2016 Johannes M. Schmitt <[email protected]>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+namespace JMS\Serializer\Tests\Exclusion;
+
+use JMS\Serializer\Exclusion\GroupsExclusionStrategy;
+use JMS\Serializer\Metadata\StaticPropertyMetadata;
+use JMS\Serializer\SerializationContext;
+
+class GroupsExclusionStrategyTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @dataProvider getExclusionRules
+     * @param array $propertyGroups
+     * @param array $groups
+     * @param $exclude
+     */
+    public function testUninitializedContextIsWorking(array $propertyGroups, array $groups, $exclude)
+    {
+        $metadata = new StaticPropertyMetadata('stdClass', 'prop', 'propVal');
+        $metadata->groups = $propertyGroups;
+
+        $strat = new GroupsExclusionStrategy($groups);
+        $this->assertEquals($strat->shouldSkipProperty($metadata, SerializationContext::create()), $exclude);
+    }
+
+    public function getExclusionRules()
+    {
+        return [
+            [['foo'], ['foo'], false],
+            [['foo'], [], true],
+            [[], ['foo'], true],
+            [['foo'], ['bar'], true],
+            [['bar'], ['foo'], true],
+
+            [['foo', 'Default'], [], false],
+            [['foo', 'bar'], [], true],
+            [['foo', 'bar'], ['Default'], true],
+            [['foo', 'bar'], ['foo'], false],
+
+            [['foo', 'Default'], ['test'], true],
+            [['foo', 'Default', 'test'], ['test'], false],
+
+            [['foo'], ['Default'], true],
+            [['Default'], [], false],
+            [[], ['Default'], false],
+            [['Default'], ['Default'], false],
+            [['Default', 'foo'], ['Default'], false],
+            [['Default'], ['Default','foo'], false],
+            [['foo'], ['Default','foo'], false],
+        ];
+    }
+}