From ba170247c1f9c7111e9d6762c799440fc96b225e Mon Sep 17 00:00:00 2001
From: Nikolay Volf <nikvolf@gmail.com>
Date: Fri, 29 Jan 2016 20:51:17 +0400
Subject: [PATCH] env_info trivia

---
 src/env_info.rs | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/src/env_info.rs b/src/env_info.rs
index 76d33cd5a..d1dcfbe02 100644
--- a/src/env_info.rs
+++ b/src/env_info.rs
@@ -59,3 +59,36 @@ impl FromJson for EnvInfo {
 		}
 	}
 }
+
+#[cfg(test)]
+mod tests {
+	extern crate rustc_serialize;
+
+	use super::*;
+	use rustc_serialize::*;
+	use util::from_json::FromJson;
+
+	#[test]
+	fn it_serializes_form_json() {
+		let env_info = EnvInfo::from_json(&json::Json::from_str(
+r#"
+	{
+		"currentCoinbase": "0x0000000000000000000000000000000000000000",
+		"currentNumber": 0,
+		"currentDifficulty": 0,
+		"currentGasLimit" : 0,
+		"currentTimestamp" : 0
+	}
+"#
+		).unwrap());
+
+		assert_eq!(env_info.number, 0);
+	}
+
+	#[test]
+	fn it_can_be_created_as_default() {
+		let default_env_info = EnvInfo::default();
+
+		assert_eq!(default_env_info.difficulty, x!(0));
+	}
+}
\ No newline at end of file