Fix code style

Author: mnapoli

tests/EnumTest.php

@@ -259,13 +259,13 @@ public function testEqualsConflictValues()
      */
     public function testJsonSerialize()
     {
-        $this->assertJsonStringEqualsJsonString('"foo"', json_encode(new EnumFixture(EnumFixture::FOO)));
-        $this->assertJsonStringEqualsJsonString('"bar"', json_encode(new EnumFixture(EnumFixture::BAR)));
-        $this->assertJsonStringEqualsJsonString('42', json_encode(new EnumFixture(EnumFixture::NUMBER)));
-        $this->assertJsonStringEqualsJsonString('0', json_encode(new EnumFixture(EnumFixture::PROBLEMATIC_NUMBER)));
-        $this->assertJsonStringEqualsJsonString('null', json_encode(new EnumFixture(EnumFixture::PROBLEMATIC_NULL)));
-        $this->assertJsonStringEqualsJsonString('""', json_encode(new EnumFixture(EnumFixture::PROBLEMATIC_EMPTY_STRING)));
-        $this->assertJsonStringEqualsJsonString('false', json_encode(new EnumFixture(EnumFixture::PROBLEMATIC_BOOLEAN_FALSE)));
+        $this->assertJsonEqualsJson('"foo"', json_encode(new EnumFixture(EnumFixture::FOO)));
+        $this->assertJsonEqualsJson('"bar"', json_encode(new EnumFixture(EnumFixture::BAR)));
+        $this->assertJsonEqualsJson('42', json_encode(new EnumFixture(EnumFixture::NUMBER)));
+        $this->assertJsonEqualsJson('0', json_encode(new EnumFixture(EnumFixture::PROBLEMATIC_NUMBER)));
+        $this->assertJsonEqualsJson('null', json_encode(new EnumFixture(EnumFixture::PROBLEMATIC_NULL)));
+        $this->assertJsonEqualsJson('""', json_encode(new EnumFixture(EnumFixture::PROBLEMATIC_EMPTY_STRING)));
+        $this->assertJsonEqualsJson('false', json_encode(new EnumFixture(EnumFixture::PROBLEMATIC_BOOLEAN_FALSE)));
     }
 
     public function testNullableEnum()
@@ -280,4 +280,9 @@ public function testBooleanEnum()
         $this->assertFalse(EnumFixture::PROBLEMATIC_BOOLEAN_FALSE()->getValue());
         $this->assertFalse((new EnumFixture(EnumFixture::PROBLEMATIC_BOOLEAN_FALSE))->jsonSerialize());
     }
+
+    private function assertJsonEqualsJson($json1, $json2)
+    {
+        $this->assertJsonStringEqualsJsonString($json1, $json2);
+    }
 }