Add blocklist creation test

test/sqids_test.exs

@@ -141,6 +141,14 @@ defmodule SqidsTest do
 
     import SqidsTest.Shared
 
+    test "creating blocklist" do
+      expected_matches = ["aa", "ab", "ac"]
+      {:ok, %Sqids.Blocklist{} = blocklist} = Sqids.Blocklist.new(expected_matches, 1, "abc")
+
+      assert blocklist.min_word_length == 1
+      assert ^expected_matches = blocklist.matches_anywhere
+    end
+
     for access_type <- [:"Direct API", :"Using module"] do
       test "#{access_type}: if no custom blocklist param, use the default blocklist" do
         {:ok, instance} = new_sqids(unquote(access_type))