From d4b9fe446de12782a61953ed12a8ab5c425f448d Mon Sep 17 00:00:00 2001
From: orbwalk <orbwalking@protonmail.com>
Date: Mon, 14 Feb 2022 17:16:55 +0100
Subject: [PATCH 1/3] Implement Clone for MockStore

---
 src/mock_store.rs | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/src/mock_store.rs b/src/mock_store.rs
index 3415af6..fd5a6a5 100644
--- a/src/mock_store.rs
+++ b/src/mock_store.rs
@@ -26,7 +26,7 @@ use std::{
 /// implements_default(faux::MaybeFaux::Real(3));
 /// ```
 
-#[derive(Debug)]
+#[derive(Clone, Debug)]
 pub enum MaybeFaux<T> {
     Real(T),
     Faux(MockStore),
@@ -38,15 +38,6 @@ impl<T: Default> Default for MaybeFaux<T> {
     }
 }
 
-impl<T: Clone> Clone for MaybeFaux<T> {
-    fn clone(&self) -> Self {
-        match self {
-            MaybeFaux::Real(r) => MaybeFaux::Real(r.clone()),
-            MaybeFaux::Faux(_) => panic!("cannot clone a mock"),
-        }
-    }
-}
-
 impl<T> MaybeFaux<T> {
     pub fn faux() -> Self {
         MaybeFaux::Faux(MockStore::new())
@@ -124,3 +115,12 @@ impl MockStore {
         Err(errors.join("\n\n"))
     }
 }
+
+impl Clone for MockStore {
+    fn clone(&self) -> Self {
+        let stubs = self.stubs.lock().unwrap();
+        Self {
+            stubs: Mutex::new(stubs.clone()),
+        }
+    }
+}

From d2ebbf76482393a3c9541ae82fb5961672ad0165 Mon Sep 17 00:00:00 2001
From: orbwalk <orbwalking@protonmail.com>
Date: Wed, 23 Feb 2022 10:56:35 +0100
Subject: [PATCH 2/3] Wrap stubs mutex in arc

---
 src/mock_store.rs | 15 +++------------
 1 file changed, 3 insertions(+), 12 deletions(-)

diff --git a/src/mock_store.rs b/src/mock_store.rs
index fd5a6a5..d05e6ec 100644
--- a/src/mock_store.rs
+++ b/src/mock_store.rs
@@ -44,16 +44,16 @@ impl<T> MaybeFaux<T> {
     }
 }
 
-#[derive(Debug, Default)]
+#[derive(Clone, Debug, Default)]
 #[doc(hidden)]
 pub struct MockStore {
-    stubs: Mutex<HashMap<usize, Arc<Mutex<Vec<stub::Saved<'static>>>>>>,
+    stubs: Arc<Mutex<HashMap<usize, Arc<Mutex<Vec<stub::Saved<'static>>>>>>>,
 }
 
 impl MockStore {
     fn new() -> Self {
         MockStore {
-            stubs: Mutex::new(HashMap::new()),
+            stubs: Arc::new(Mutex::new(HashMap::new())),
         }
     }
 
@@ -115,12 +115,3 @@ impl MockStore {
         Err(errors.join("\n\n"))
     }
 }
-
-impl Clone for MockStore {
-    fn clone(&self) -> Self {
-        let stubs = self.stubs.lock().unwrap();
-        Self {
-            stubs: Mutex::new(stubs.clone()),
-        }
-    }
-}

From 9f94020f615b11ebe4e28f81629cb6749f73483b Mon Sep 17 00:00:00 2001
From: orbwalk <orbwalking@protonmail.com>
Date: Wed, 23 Feb 2022 10:57:02 +0100
Subject: [PATCH 3/3] Fix clone mock test

---
 tests/clone.rs | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/tests/clone.rs b/tests/clone.rs
index 10402e4..20f2785 100644
--- a/tests/clone.rs
+++ b/tests/clone.rs
@@ -25,8 +25,9 @@ fn can_clone_real() {
 }
 
 #[test]
-#[should_panic]
-fn cloning_mock_panics() {
-    let real = Foo::faux();
-    let _ = real.clone();
+fn can_clone_mock() {
+    let mut mock = Foo::faux();
+    let cloned = mock.clone();
+    faux::when!(mock.get()).then_return(4);
+    assert_eq!(cloned.get(), 4);
 }