Directory Restructure (#1163)

* Move tests -> testing

* Directory restructure

* Update Cargo.toml during restructure

* Update Makefile during restructure

* Fix arbitrary path

testing/ef_tests/src/cases/common.rs

@@ -0,0 +1,72 @@
+use crate::cases::LoadCase;
+use crate::decode::yaml_decode_file;
+use crate::error::Error;
+use serde_derive::Deserialize;
+use ssz::{Decode, Encode};
+use ssz_derive::{Decode, Encode};
+use std::convert::TryFrom;
+use std::fmt::Debug;
+use std::path::Path;
+use tree_hash::TreeHash;
+
+/// Trait for all BLS cases to eliminate some boilerplate.
+pub trait BlsCase: serde::de::DeserializeOwned {}
+
+impl<T: BlsCase> LoadCase for T {
+    fn load_from_dir(path: &Path) -> Result<Self, Error> {
+        yaml_decode_file(&path.join("data.yaml"))
+    }
+}
+
+/// Macro to wrap U128 and U256 so they deserialize correctly.
+macro_rules! uint_wrapper {
+    ($wrapper_name:ident, $wrapped_type:ty) => {
+        #[derive(Debug, Clone, Copy, Default, PartialEq, Decode, Encode, Deserialize)]
+        #[serde(try_from = "String")]
+        pub struct $wrapper_name {
+            pub x: $wrapped_type,
+        }
+
+        impl TryFrom<String> for $wrapper_name {
+            type Error = String;
+
+            fn try_from(s: String) -> Result<Self, Self::Error> {
+                <$wrapped_type>::from_dec_str(&s)
+                    .map(|x| Self { x })
+                    .map_err(|e| format!("{:?}", e))
+            }
+        }
+
+        impl tree_hash::TreeHash for $wrapper_name {
+            fn tree_hash_type() -> tree_hash::TreeHashType {
+                <$wrapped_type>::tree_hash_type()
+            }
+
+            fn tree_hash_packed_encoding(&self) -> Vec<u8> {
+                self.x.tree_hash_packed_encoding()
+            }
+
+            fn tree_hash_packing_factor() -> usize {
+                <$wrapped_type>::tree_hash_packing_factor()
+            }
+
+            fn tree_hash_root(&self) -> tree_hash::Hash256 {
+                self.x.tree_hash_root()
+            }
+        }
+    };
+}
+
+uint_wrapper!(TestU128, ethereum_types::U128);
+uint_wrapper!(TestU256, ethereum_types::U256);
+
+/// Trait alias for all deez bounds
+pub trait SszStaticType:
+    serde::de::DeserializeOwned + Decode + Encode + TreeHash + Clone + PartialEq + Debug + Sync
+{
+}
+
+impl<T> SszStaticType for T where
+    T: serde::de::DeserializeOwned + Decode + Encode + TreeHash + Clone + PartialEq + Debug + Sync
+{
+}