019f8fd211
git-subtree-dir: users/wpcarro git-subtree-mainline:464bbcb15cgit-subtree-split:24f5a642afChange-Id: I6105b3762b79126b3488359c95978cadb3efa789
84 lines
2.5 KiB
Python
84 lines
2.5 KiB
Python
import unittest
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################################################################################
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# Solution
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################################################################################
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class TempTracker(object):
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def __init__(self):
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# min / max
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self.min = None
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self.max = None
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# mean
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self.sum = 0
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self.num = 0
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# mode
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self.nums = [0] * 111
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self.mode_num = 0
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self.mode = None
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def insert(self, x):
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# min / max
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if not self.min or x < self.min:
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self.min = x
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if not self.max or x > self.max:
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self.max = x
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# mean
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self.sum += x
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self.num += 1
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# mode
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self.nums[x] += 1
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if self.nums[x] >= self.mode_num:
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self.mode_num = self.nums[x]
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self.mode = x
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def get_max(self):
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return self.max
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def get_min(self):
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return self.min
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def get_mean(self):
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return self.sum / self.num
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def get_mode(self):
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return self.mode
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# Tests
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class Test(unittest.TestCase):
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def test_tracker_usage(self):
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tracker = TempTracker()
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tracker.insert(50)
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msg = 'failed on first temp recorded'
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self.assertEqual(tracker.get_max(), 50, msg='max ' + msg)
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self.assertEqual(tracker.get_min(), 50, msg='min ' + msg)
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self.assertEqual(tracker.get_mean(), 50.0, msg='mean ' + msg)
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self.assertEqual(tracker.get_mode(), 50, msg='mode ' + msg)
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tracker.insert(80)
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msg = 'failed on higher temp recorded'
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self.assertEqual(tracker.get_max(), 80, msg='max ' + msg)
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self.assertEqual(tracker.get_min(), 50, msg='min ' + msg)
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self.assertEqual(tracker.get_mean(), 65.0, msg='mean ' + msg)
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self.assertIn(tracker.get_mode(), [50, 80], msg='mode ' + msg)
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tracker.insert(80)
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msg = 'failed on third temp recorded'
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self.assertEqual(tracker.get_max(), 80, msg='max ' + msg)
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self.assertEqual(tracker.get_min(), 50, msg='min ' + msg)
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self.assertEqual(tracker.get_mean(), 70.0, msg='mean ' + msg)
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self.assertEqual(tracker.get_mode(), 80, msg='mode ' + msg)
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tracker.insert(30)
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msg = 'failed on lower temp recorded'
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self.assertEqual(tracker.get_max(), 80, msg='max ' + msg)
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self.assertEqual(tracker.get_min(), 30, msg='min ' + msg)
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self.assertEqual(tracker.get_mean(), 60.0, msg='mean ' + msg)
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self.assertEqual(tracker.get_mode(), 80, msg='mode ' + msg)
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unittest.main(verbosity=2)
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