diff --git a/rand_chacha/src/chacha.rs b/rand_chacha/src/chacha.rs
index 161fc7c1874..f4c04766a7e 100644
--- a/rand_chacha/src/chacha.rs
+++ b/rand_chacha/src/chacha.rs
@@ -638,10 +638,10 @@ mod test {
         use rand_core::CryptoRng;
 
         let mut rng = ChaChaRng::from_seed(Default::default());
-        let dyn_rng = &mut rng.clone() as &mut dyn CryptoRng;
         let mut box_rng = Box::new(rng.clone());
+        let dyn_rng = &mut rng.clone() as &mut dyn CryptoRng;
         let exp = rng.next_u64();
-        assert_ne!(exp, dyn_rng.next_u64());
-        assert_ne!(exp, box_rng.next_u64());
+        assert_eq!(exp, dyn_rng.next_u64());
+        assert_eq!(exp, box_rng.next_u64());
     }
 }
diff --git a/rand_pcg/tests/lcg128cmdxsm64.rs b/rand_pcg/tests/lcg128cmdxsm64.rs
index b254b4fac66..d5f3a6a498d 100644
--- a/rand_pcg/tests/lcg128cmdxsm64.rs
+++ b/rand_pcg/tests/lcg128cmdxsm64.rs
@@ -23,7 +23,7 @@ fn test_lcg128cmdxsm64_construction() {
     let mut rng1 = Lcg128CmDxsm64::from_seed(seed);
     assert_eq!(rng1.next_u64(), 12201417210360370199);
 
-    let mut rng2 = Lcg128CmDxsm64::from_rng(&mut rng1).unwrap();
+    let mut rng2 = Lcg128CmDxsm64::from_rng(&mut rng1);
     assert_eq!(rng2.next_u64(), 11487972556150888383);
 
     let mut rng3 = Lcg128CmDxsm64::seed_from_u64(0);
diff --git a/rand_pcg/tests/lcg128xsl64.rs b/rand_pcg/tests/lcg128xsl64.rs
index 31eada442eb..92c9a41f57d 100644
--- a/rand_pcg/tests/lcg128xsl64.rs
+++ b/rand_pcg/tests/lcg128xsl64.rs
@@ -23,7 +23,7 @@ fn test_lcg128xsl64_construction() {
     let mut rng1 = Lcg128Xsl64::from_seed(seed);
     assert_eq!(rng1.next_u64(), 8740028313290271629);
 
-    let mut rng2 = Lcg128Xsl64::from_rng(&mut rng1).unwrap();
+    let mut rng2 = Lcg128Xsl64::from_rng(&mut rng1);
     assert_eq!(rng2.next_u64(), 1922280315005786345);
 
     let mut rng3 = Lcg128Xsl64::seed_from_u64(0);
diff --git a/rand_pcg/tests/lcg64xsh32.rs b/rand_pcg/tests/lcg64xsh32.rs
index 9c181ee3a45..ee884706fb4 100644
--- a/rand_pcg/tests/lcg64xsh32.rs
+++ b/rand_pcg/tests/lcg64xsh32.rs
@@ -21,7 +21,7 @@ fn test_lcg64xsh32_construction() {
     let mut rng1 = Lcg64Xsh32::from_seed(seed);
     assert_eq!(rng1.next_u64(), 1204678643940597513);
 
-    let mut rng2 = Lcg64Xsh32::from_rng(&mut rng1).unwrap();
+    let mut rng2 = Lcg64Xsh32::from_rng(&mut rng1);
     assert_eq!(rng2.next_u64(), 12384929573776311845);
 
     let mut rng3 = Lcg64Xsh32::seed_from_u64(0);
diff --git a/rand_pcg/tests/mcg128xsl64.rs b/rand_pcg/tests/mcg128xsl64.rs
index 1f352b6e879..bee87aeb3f7 100644
--- a/rand_pcg/tests/mcg128xsl64.rs
+++ b/rand_pcg/tests/mcg128xsl64.rs
@@ -21,7 +21,7 @@ fn test_mcg128xsl64_construction() {
     let mut rng1 = Mcg128Xsl64::from_seed(seed);
     assert_eq!(rng1.next_u64(), 7071994460355047496);
 
-    let mut rng2 = Mcg128Xsl64::from_rng(&mut rng1).unwrap();
+    let mut rng2 = Mcg128Xsl64::from_rng(&mut rng1);
     assert_eq!(rng2.next_u64(), 12300796107712034932);
 
     let mut rng3 = Mcg128Xsl64::seed_from_u64(0);