From 16ac9816258a5bd3e688714006f098f3efafb683 Mon Sep 17 00:00:00 2001
From: Greg Anderson <greg.1.anderson@greenknowe.org>
Date: Mon, 4 Apr 2016 13:47:13 -0700
Subject: [PATCH] Add json formatter.

---
 src/FormatterManager.php         |  1 +
 src/Formatters/JsonFormatter.php | 16 +++++++++
 tests/testFormatters.php         | 62 ++++++++++++++++++++++++++++++++
 3 files changed, 79 insertions(+)
 create mode 100644 src/Formatters/JsonFormatter.php

diff --git a/src/FormatterManager.php b/src/FormatterManager.php
index d0eba3c..8fdd1da 100644
--- a/src/FormatterManager.php
+++ b/src/FormatterManager.php
@@ -12,6 +12,7 @@ public function __construct()
     {
         $this->formatters = [
             'yaml' => \Consolidation\OutputFormatters\Formatters\YamlFormatter::class,
+            'json' => \Consolidation\OutputFormatters\Formatters\JsonFormatter::class,
             'table' => \Consolidation\OutputFormatters\Formatters\TableFormatter::class,
         ];
     }
diff --git a/src/Formatters/JsonFormatter.php b/src/Formatters/JsonFormatter.php
new file mode 100644
index 0000000..d583ec9
--- /dev/null
+++ b/src/Formatters/JsonFormatter.php
@@ -0,0 +1,16 @@
+<?php
+namespace Consolidation\OutputFormatters\Formatters;
+
+use Consolidation\OutputFormatters\FormatterInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+class JsonFormatter implements FormatterInterface
+{
+    /**
+     * @inheritdoc
+     */
+    public function write($data, $options, OutputInterface $output)
+    {
+        $output->writeln(json_encode($data, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES));
+    }
+}
diff --git a/tests/testFormatters.php b/tests/testFormatters.php
index 219b4c6..f7b6c95 100644
--- a/tests/testFormatters.php
+++ b/tests/testFormatters.php
@@ -75,6 +75,68 @@ function testNestedYaml()
         $this->assertFormattedOutputMatches($expected, 'yaml', $data);
     }
 
+    function testSimpleJson()
+    {
+        $data = [
+            'one' => 'a',
+            'two' => 'b',
+            'three' => 'c',
+        ];
+
+        $expected = <<<EOT
+{
+    "one": "a",
+    "two": "b",
+    "three": "c"
+}
+EOT;
+
+        $this->assertFormattedOutputMatches($expected, 'json', $data);
+    }
+
+    function testNestedJson()
+    {
+        $data = [
+            'one' => [
+                'i' => ['a', 'b', 'c'],
+            ],
+            'two' => [
+                'ii' => ['q', 'r', 's'],
+            ],
+            'three' => [
+                'iii' => ['t', 'u', 'v'],
+            ],
+        ];
+
+        $expected = <<<EOT
+{
+    "one": {
+        "i": [
+            "a",
+            "b",
+            "c"
+        ]
+    },
+    "two": {
+        "ii": [
+            "q",
+            "r",
+            "s"
+        ]
+    },
+    "three": {
+        "iii": [
+            "t",
+            "u",
+            "v"
+        ]
+    }
+}
+EOT;
+
+        $this->assertFormattedOutputMatches($expected, 'json', $data);
+    }
+
     function testSimpleTable()
     {
         $data = [