From 1af9312b156517692099d7df083c5948ecf4875f Mon Sep 17 00:00:00 2001
From: Josh Wells <josh@parall.ax>
Date: Wed, 13 May 2020 14:07:55 +0100
Subject: [PATCH] Implemented JsonSerializable

---
 src/Decimal.php                        | 11 ++++++++++-
 tests/Decimal/DecimalJsonSerialize.php | 19 +++++++++++++++++++
 2 files changed, 29 insertions(+), 1 deletion(-)
 create mode 100644 tests/Decimal/DecimalJsonSerialize.php

diff --git a/src/Decimal.php b/src/Decimal.php
index 2a374ae..5eb568e 100644
--- a/src/Decimal.php
+++ b/src/Decimal.php
@@ -3,6 +3,7 @@
 
 namespace Litipk\BigNumbers;
 
+use JsonSerializable;
 use Litipk\BigNumbers\DecimalConstants as DecimalConstants;
 
 use Litipk\BigNumbers\Errors\InfiniteInputError;
@@ -14,7 +15,7 @@
  *
  * @author Andreu Correa Casablanca <castarco@litipk.com>
  */
-class Decimal
+class Decimal implements JsonSerializable
 {
     const DEFAULT_SCALE = 16;
     const CLASSIC_DECIMAL_NUMBER_REGEXP = '/^([+\-]?)0*(([1-9][0-9]*|[0-9])(\.[0-9]+)?)$/';
@@ -1129,6 +1130,14 @@ public function __toString(): string
         return $this->value;
     }
 
+    /**
+     * @return string
+     */
+    public function jsonSerialize(): string
+    {
+        return $this->value;
+    }
+
     /*
      *
      */
diff --git a/tests/Decimal/DecimalJsonSerialize.php b/tests/Decimal/DecimalJsonSerialize.php
new file mode 100644
index 0000000..e7747b3
--- /dev/null
+++ b/tests/Decimal/DecimalJsonSerialize.php
@@ -0,0 +1,19 @@
+<?php
+
+use Litipk\BigNumbers\Decimal as Decimal;
+use PHPUnit\Framework\TestCase;
+
+class DecimalJsonSerialize extends TestCase
+{
+    public function testJsonSerialize()
+    {
+        $value = '123.456';
+        $this->assertEquals($value, Decimal::fromString($value)->jsonSerialize());
+    }
+
+    public function testJsonSerializable()
+    {
+        $value = '123.456';
+        $this->assertEquals(json_encode($value), json_encode(Decimal::fromString($value)));
+    }
+}