Fix Deserialisation of dependencies (#24)

* Fix Deserialization of dependencies

Cargo.toml

@@ -32,4 +32,4 @@ test-log = "0.2.10"
 
 [dev-dependencies]
 project-root = "0.2.2"
-
+mockall = "0.11.1"

src/cache.rs

@@ -7,11 +7,15 @@ use crate::{
     cache::CacheError::AuthFailure,
     cli::HttpGitAuth,
     model::protofetch::{Coordinate, Protocol},
-    proto_repository::ProtoRepository,
+    proto_repository::ProtoGitRepository,
 };
 
+use crate::proto_repository::ProtoRepository;
+#[cfg(test)] use mockall::{predicate::*, *};
+
+#[cfg_attr(test, automock)]
 pub trait RepositoryCache {
-    fn clone_or_update(&self, entry: &Coordinate) -> Result<ProtoRepository, CacheError>;
+    fn clone_or_update(&self, entry: &Coordinate) -> Result<Box<dyn ProtoRepository>, CacheError>;
 }
 
 pub struct ProtofetchGitCache {
@@ -32,7 +36,7 @@ pub enum CacheError {
 }
 
 impl RepositoryCache for ProtofetchGitCache {
-    fn clone_or_update(&self, entry: &Coordinate) -> Result<ProtoRepository, CacheError> {
+    fn clone_or_update(&self, entry: &Coordinate) -> Result<Box<dyn ProtoRepository>, CacheError> {
         let repo = match self.get_entry(entry) {
             None => self.clone_repo(entry)?,
             Some(path) => {
@@ -44,7 +48,7 @@ impl RepositoryCache for ProtofetchGitCache {
             }
         };
 
-        Ok(ProtoRepository::new(repo))
+        Ok(Box::new(ProtoGitRepository::new(repo)))
     }
 }