test/test_totp.rb in otp-0.0.8 vs test/test_totp.rb in otp-0.0.9

@@ -1,7 +1,6 @@
-require "test/unit"
-require "otp"
+require_relative "helper"
 
 class TestTOTP < Test::Unit::TestCase
   def assert_totp(totp, time, pass)
     totp.time = time
     assert_equal(pass, totp.password)
@@ -68,7 +67,14 @@
     assert(totp.verify("71170909", last:2, post:2))
     assert(totp.verify("50451956", last:2, post:2))  # current
     assert(totp.verify("36432053", last:2, post:2))
     assert(totp.verify("78660635", last:2, post:2))
     assert(!totp.verify("97845627", last:2, post:2))
+  end
+
+  def test_error
+    seed = "12345678901234567890"
+    totp = OTP::TOTP.new(OTP::Base32.encode(seed), "SHA1", 8)
+    assert_raise(ArgumentError){ assert(totp.verify("50451956", last:-2)) }
+    assert_raise(ArgumentError){ assert(totp.verify("50451956", post:-2)) }
   end
 end