From 10f92cdf0d847215981ac87f39d59d131f5d2092 Mon Sep 17 00:00:00 2001
From: Nikolay Khabarov <2xl@mail.ru>
Date: Sat, 17 Jun 2017 01:19:07 +0300
Subject: [PATCH] add pid basic test

---
 tests/test_pid.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tests/test_pid.py b/tests/test_pid.py
index 4fb8d8d..90fa4ff 100644
--- a/tests/test_pid.py
+++ b/tests/test_pid.py
@@ -49,6 +49,11 @@ class TestPid(unittest.TestCase):
                         msg="failed to heat in 10 minutes, final temperature "
                             "{}/{}".format(temperature, target_temp))
 
+    def test_simple(self):
+        pid = Pid(50, 0)
+        self.assertEqual(0, pid.update(100, 1))
+        self.assertEqual(1, pid.update(0, 2))
+
     def test_bed(self):
         # check if bed typical temperatures can be reached in simulation
         for target in range(50, 101, 10):