From e7e3a7592402cce8ca71e0382855430cf5c418a7 Mon Sep 17 00:00:00 2001
From: Matthias Beyer <mail@beyermatthias.de>
Date: Tue, 20 Jun 2017 20:42:01 +0200
Subject: [PATCH] Add another JSON test for an empty JSON

---
 .../src/file_abstraction/stdio/mapper/json.rs        | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/libimagstore/src/file_abstraction/stdio/mapper/json.rs b/libimagstore/src/file_abstraction/stdio/mapper/json.rs
index b3772b85..a153df08 100644
--- a/libimagstore/src/file_abstraction/stdio/mapper/json.rs
+++ b/libimagstore/src/file_abstraction/stdio/mapper/json.rs
@@ -153,6 +153,18 @@ mod test {
 
     use super::*;
 
+    #[test]
+    fn test_empty_json_to_fs() {
+        let json = r#"{"version":"0.3.0","store":{}}"#;
+        let mut json = Cursor::new(String::from(json).into_bytes());
+        let mapper   = JsonMapper::new();
+        let mut hm   = HashMap::new();
+
+        let io_res  = mapper.read_to_fs(&mut json, &mut hm);
+        assert!(io_res.is_ok());
+        assert!(hm.is_empty());
+    }
+
     #[test]
     fn test_json_to_fs() {
         let json = r#"