test/test_hotp.rb in otp-0.0.4 vs test/test_hotp.rb in otp-0.0.5

@@ -21,6 +21,32 @@
     assert_hotp(hotp, 6, "287922")
     assert_hotp(hotp, 7, "162583")
     assert_hotp(hotp, 8, "399871")
     assert_hotp(hotp, 9, "520489")
   end
+
+  def test_last_and_post
+    seed = "12345678901234567890"
+    hotp = OTP::HOTP.new(OTP::Base32.encode(seed), "SHA1", 6)
+    hotp.count = 5
+
+    assert(!hotp.verify("359152", last:2))  # pass for 2
+    assert(hotp.verify("969429", last:2))  # pass for 3
+    assert(hotp.verify("338314", last:2))  # pass for 4
+    assert(hotp.verify("254676", last:2))  # pass for 5
+    assert(!hotp.verify("287922", last:2))  # pass for 6
+
+    assert(!hotp.verify("338314", post:2))  # pass for 4
+    assert(hotp.verify("254676", post:2))  # pass for 5
+    assert(hotp.verify("287922", post:2))  # pass for 6
+    assert(hotp.verify("162583", post:2))  # pass for 7
+    assert(!hotp.verify("399871", post:2))  # pass for 8
+
+    assert(!hotp.verify("359152", last:2, post:2))  # pass for 2
+    assert(hotp.verify("969429", last:2, post:2))  # pass for 3
+    assert(hotp.verify("338314", last:2, post:2))  # pass for 4
+    assert(hotp.verify("254676", post:2, post:2))  # pass for 5
+    assert(hotp.verify("287922", post:2, post:2))  # pass for 6
+    assert(hotp.verify("162583", post:2, post:2))  # pass for 7
+    assert(!hotp.verify("399871", post:2, post:2))  # pass for 8
+  end
 end