diff --git a/test/unit/string_test.rb b/test/unit/string_test.rb
index 247c637e0..1691d4ec2 100644
--- a/test/unit/string_test.rb
+++ b/test/unit/string_test.rb
@@ -26,7 +26,6 @@ class StringTest < ActiveSupport::TestCase
       assert_equal("foobar", "foo\u180Ebar".normalize_whitespace)
       assert_equal("foobar", "foo\u200Bbar".normalize_whitespace)
       assert_equal("foobar", "foo\u200Cbar".normalize_whitespace)
-      assert_equal("foobar", "foo\u200Dbar".normalize_whitespace)
       assert_equal("foobar", "foo\u2060bar".normalize_whitespace)
       assert_equal("foobar", "foo\uFEFFbar".normalize_whitespace)
     end
diff --git a/test/unit/user_upgrade_test.rb b/test/unit/user_upgrade_test.rb
index d73eee270..124cebf22 100644
--- a/test/unit/user_upgrade_test.rb
+++ b/test/unit/user_upgrade_test.rb
@@ -180,7 +180,7 @@ class UserUpgradeTest < ActiveSupport::TestCase
           @user_upgrade = create(:self_gold_upgrade, status: "pending")
           @user_upgrade.create_checkout!
 
-          assert_equal(nil, @user_upgrade.receipt_url)
+          assert_nil(@user_upgrade.receipt_url)
         end
       end