From cfb1cdd272f634d9bc014080bdbf9b3fd15131e5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Juli=C3=A1n=20Guti=C3=A9rrez?= <juliangut@gmail.com>
Date: Wed, 19 Sep 2018 00:34:40 +0200
Subject: [PATCH] make json serializable

---
 composer.json                           | 1 +
 src/AbstractIdentity.php                | 8 ++++++++
 src/Identity.php                        | 2 +-
 tests/Identity/AbstractIdentityTest.php | 1 +
 tests/Identity/UuidIdentityTest.php     | 2 ++
 5 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/composer.json b/composer.json
index 27a4254..1fabf12 100644
--- a/composer.json
+++ b/composer.json
@@ -23,6 +23,7 @@
   "prefer-stable": true,
   "require": {
     "php": "^7.1",
+    "ext-json": "*",
     "phpgears/immutability": "0.1",
     "ramsey/uuid": "^3.7"
   },
diff --git a/src/AbstractIdentity.php b/src/AbstractIdentity.php
index cc192dd..176a8f8 100644
--- a/src/AbstractIdentity.php
+++ b/src/AbstractIdentity.php
@@ -67,6 +67,14 @@ final public function __toString(): string
         return $this->value;
     }
 
+    /**
+     * {@inheritdoc}
+     */
+    final public function jsonSerialize(): string
+    {
+        return $this->value;
+    }
+
     /**
      * {@inheritdoc}
      *
diff --git a/src/Identity.php b/src/Identity.php
index f70c6fb..179ccc0 100644
--- a/src/Identity.php
+++ b/src/Identity.php
@@ -16,7 +16,7 @@
 /**
  * Identity value object interface.
  */
-interface Identity
+interface Identity extends \JsonSerializable
 {
     /**
      * Get identity from string.
diff --git a/tests/Identity/AbstractIdentityTest.php b/tests/Identity/AbstractIdentityTest.php
index 13d86e6..f8670fd 100644
--- a/tests/Identity/AbstractIdentityTest.php
+++ b/tests/Identity/AbstractIdentityTest.php
@@ -27,6 +27,7 @@ public function testCreation(): void
 
         $this->assertSame('thisIsMyId', $stub->getValue());
         $this->assertSame('thisIsMyId', (string) $stub);
+        $this->assertSame('"thisIsMyId"', \json_encode($stub));
     }
 
     public function testEquality(): void
diff --git a/tests/Identity/UuidIdentityTest.php b/tests/Identity/UuidIdentityTest.php
index 0d96401..109bda3 100644
--- a/tests/Identity/UuidIdentityTest.php
+++ b/tests/Identity/UuidIdentityTest.php
@@ -28,6 +28,8 @@ public function testCreation(): void
         $stub = UuidIdentity::fromString($uuid);
 
         $this->assertSame($uuid, $stub->getValue());
+        $this->assertSame('4c4316cb-b48b-44fb-a034-90d789966bac', (string) $stub);
+        $this->assertSame('"4c4316cb-b48b-44fb-a034-90d789966bac"', \json_encode($stub));
     }
 
     /**