Add the json spec of World

Author: Seulgi Kim

json/src/spec/mod.rs

@@ -28,6 +28,7 @@ mod solo_authority;
 mod spec;
 mod state;
 mod tendermint;
+mod world;
 
 pub use self::account::Account;
 pub use self::blake_pow::{BlakePoW, BlakePoWParams};
@@ -43,3 +44,4 @@ pub use self::solo_authority::{SoloAuthority, SoloAuthorityParams};
 pub use self::spec::Spec;
 pub use self::state::{Accounts, Shards};
 pub use self::tendermint::{Tendermint, TendermintParams};
+pub use self::world::World;

json/src/spec/world.rs

@@ -0,0 +1,94 @@
+// Copyright 2018 Kodebox, Inc.
+// This file is part of CodeChain.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+use primitives::H160;
+
+use super::super::uint::Uint;
+
+#[derive(Debug, PartialEq, Deserialize)]
+pub struct World {
+    pub nonce: Option<Uint>,
+    pub owners: Option<Vec<H160>>,
+}
+
+#[cfg(test)]
+mod tests {
+    use serde_json;
+
+    use super::*;
+
+    #[test]
+    fn deserialization() {
+        let s = r#"{
+            "nonce": 0,
+            "owners": ["0x01234567890abcdef0123456789abcdef0123456"]
+        }"#;
+        let world: World = serde_json::from_str(s).unwrap();
+        assert_eq!(
+            World {
+                nonce: Some(Uint(0.into())),
+                owners: Some(vec![H160::from("01234567890abcdef0123456789abcdef0123456")]),
+            },
+            world
+        );
+    }
+
+    #[test]
+    fn with_non_zero_nonce_deserialization() {
+        let s = r#"{
+            "nonce": 100,
+            "owners": ["0x01234567890abcdef0123456789abcdef0123456"]
+        }"#;
+        let world: World = serde_json::from_str(s).unwrap();
+        assert_eq!(
+            World {
+                nonce: Some(Uint(100.into())),
+                owners: Some(vec![H160::from("01234567890abcdef0123456789abcdef0123456")]),
+            },
+            world
+        );
+    }
+
+
+    #[test]
+    fn deserialization_of_empty_world() {
+        let s = r#"{
+        }"#;
+        let world: World = serde_json::from_str(s).unwrap();
+        assert_eq!(
+            World {
+                nonce: None,
+                owners: None,
+            },
+            world
+        );
+    }
+
+    #[test]
+    fn world_without_nonce_deserialization() {
+        let s = r#"{
+            "owners": ["0x01234567890abcdef0123456789abcdef0123456"]
+        }"#;
+        let world: World = serde_json::from_str(s).unwrap();
+        assert_eq!(
+            World {
+                nonce: None,
+                owners: Some(vec![H160::from("01234567890abcdef0123456789abcdef0123456")]),
+            },
+            world
+        );
+    }
+}