diff --git a/test/arrays.tm b/test/arrays.tm
index 25d4558..7f1882a 100644
--- a/test/arrays.tm
+++ b/test/arrays.tm
@@ -105,7 +105,7 @@ func main():
 	>> ["A", "B", "C"]:sample(10, [1.0, 0.5, 0.0])
 
 	do:
-		>> heap := [Int.random(1, 50) for _ in 10]
+		>> heap := [random:int(1, 50) for _ in 10]
 		>> heap:heapify()
 		>> heap
 		sorted := [:Int]
@@ -114,7 +114,7 @@ func main():
 		>> sorted == sorted:sorted()
 		= yes
 		for _ in 10:
-			heap:heap_push(Int.random(1, 50))
+			heap:heap_push(random:int(1, 50))
 		>> heap
 		sorted = [:Int]
 		while heap.length > 0:
@@ -172,29 +172,3 @@ func main():
 	= !Int
 	>> [4, 5, 6]:first(func(i:&Int): i:is_prime())
 	= 2?
-
-	test_seeded_rng()
-
-# Inspired by: https://nullprogram.com/blog/2017/09/21/
-struct RNGxoroshiro128(s0=Int64.random(),s1=Int64.random()):
-	func int_fn(rng:@RNGxoroshiro128 -> func(->Int64)):
-		return func(-> Int64):
-			s0 := rng.s0
-			s1 := rng.s1
-			result := s0:wrapping_plus(s1)
-			s1 xor= s0
-			rng.s0 = (s0 <<< 55) or (s0 >>> 9) xor s1 xor (s1 <<< 14)
-			rng.s1 = (s1 <<< 36) or (s1 >>> 28)
-			return result
-
-func test_seeded_rng():
-	!! Seeded RNG:
-	rng_state := RNGxoroshiro128(Int64.random(), Int64.random())
-	rng1 := @rng_state:int_fn()
-	rng2 := @rng_state:int_fn()
-
-	nums := [i*10 for i in 20]
-	>> nums:random(rng1) == nums:random(rng2)
-	= yes
-	>> nums:shuffled(rng1) == nums:shuffled(rng2)
-	= yes
diff --git a/test/integers.tm b/test/integers.tm
index 9b5b6b4..ad9c40d 100644
--- a/test/integers.tm
+++ b/test/integers.tm
@@ -50,7 +50,6 @@ func main():
 	>> x:octal()
 	= "0o173"
 
-	>> Int.random(1, 100)
 	>> Int64.min
 	= -9223372036854775808[64]
 	>> Int64.max
@@ -87,8 +86,8 @@ func main():
 
 	do:
 		for in 20:
-			>> n := Int.random(-999999, 999999)
-			>> d := Int.random(-999, 999)
+			>> n := random:int(-999999, 999999)
+			>> d := random:int(-999, 999)
 			!! n=$n, d=$d:
 			>> (n/d)*d + (n mod d) == n
 			= yes
diff --git a/test/nums.tm b/test/nums.tm
index 3d6b05d..32c55f3 100644
--- a/test/nums.tm
+++ b/test/nums.tm
@@ -17,8 +17,6 @@ func main():
 	>> Num.PI:format(precision=10)
 	= "3.1415926536"
 
-	>> Num.random()
-
 	>> Num.INF
 	= inf
 	>> Num.INF:isinf()