Update and fixed fake and quickcheck

- Reference: LukeMathWalker/zero-to-production#34
- Update `fake` to 2.6 and `quickcheck` to 1
- `fake` 2.6 depending on `rand` 0.8

Cargo.toml

@@ -44,11 +44,10 @@ features = [
 [dev-dependencies]
 once_cell = "1"
 claim = "0.5"
-# Fake >= 2.4 version relies on rand 0.8
-# which quickcheck haven't supported yet
-fake = "2.3"
-quickcheck = "0.9"
-quickcheck_macros = "0.9"
+fake = "2.6"
+rand = "0.8"
+quickcheck = "1"
+quickcheck_macros = "1"
 wiremock = "0.5"
 tokio = { version = "1", features = ["rt"] }
 serde_json = "1"

src/routes/domain/subscriber_email.rs

@@ -35,14 +35,16 @@ mod tests {
     use crate::routes::SubscriberEmail;
     use fake::faker::internet::en::SafeEmail;
     use fake::Fake;
-    use quickcheck::Gen;
+    use rand::prelude::StdRng;
+    use rand::SeedableRng;
 
     #[derive(Debug, Clone)]
     struct ValidEmailFixture(pub String);
 
     impl quickcheck::Arbitrary for ValidEmailFixture {
-        fn arbitrary<G: Gen>(g: &mut G) -> Self {
-            let email = SafeEmail().fake_with_rng(g);
+        fn arbitrary(g: &mut quickcheck::Gen) -> Self {
+            let mut rng = StdRng::seed_from_u64(u64::arbitrary(g));
+            let email = SafeEmail().fake_with_rng(&mut rng);
             Self(email)
         }
     }