diff --git a/src/lib.zig b/src/lib.zig
index b57721d845745a6e29538edc7ef5ab77f5a45b7d..3890546350bec89eaa048b5c723187aaffe6095c 100644
--- a/src/lib.zig
+++ b/src/lib.zig
@@ -30,3 +30,14 @@ pub fn addSentinel(alloc: *std.mem.Allocator, comptime T: type, input: []const T
     const str = list.toOwnedSlice();
     return str[0 .. str.len - 1 :sentinel];
 }
+
+const alphabet = "0123456789abcdefghijklmnopqrstuvwxyz";
+
+pub fn randomSlice(alloc: *std.mem.Allocator, rand: *std.rand.Random, comptime T: type, len: usize) ![]const T {
+    var buf = try alloc.alloc(T, len);
+    var i: usize = 0;
+    while (i < len) : (i += 1) {
+        buf[i] = alphabet[rand.int(usize) % alphabet.len];
+    }
+    return buf;
+}