59 lines
1.7 KiB
Python
59 lines
1.7 KiB
Python
import unittest
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def merge_ranges(xs):
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xs.sort()
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result = [xs[0]]
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for curr in xs[1:]:
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a, z = result[-1]
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if z >= curr[0]:
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result[-1] = (a, max(z, curr[1]))
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else:
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result.append(curr)
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return result
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# Tests
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class Test(unittest.TestCase):
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def test_meetings_overlap(self):
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actual = merge_ranges([(1, 3), (2, 4)])
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expected = [(1, 4)]
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self.assertEqual(actual, expected)
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def test_meetings_touch(self):
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actual = merge_ranges([(5, 6), (6, 8)])
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expected = [(5, 8)]
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self.assertEqual(actual, expected)
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def test_meeting_contains_other_meeting(self):
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actual = merge_ranges([(1, 8), (2, 5)])
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expected = [(1, 8)]
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self.assertEqual(actual, expected)
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def test_meetings_stay_separate(self):
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actual = merge_ranges([(1, 3), (4, 8)])
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expected = [(1, 3), (4, 8)]
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self.assertEqual(actual, expected)
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def test_multiple_merged_meetings(self):
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actual = merge_ranges([(1, 4), (2, 5), (5, 8)])
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expected = [(1, 8)]
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self.assertEqual(actual, expected)
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def test_meetings_not_sorted(self):
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actual = merge_ranges([(5, 8), (1, 4), (6, 8)])
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expected = [(1, 4), (5, 8)]
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self.assertEqual(actual, expected)
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def test_one_long_meeting_contains_smaller_meetings(self):
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actual = merge_ranges([(1, 10), (2, 5), (6, 8), (9, 10), (10, 12)])
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expected = [(1, 12)]
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self.assertEqual(actual, expected)
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def test_sample_input(self):
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actual = merge_ranges([(0, 1), (3, 5), (4, 8), (10, 12), (9, 10)])
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expected = [(0, 1), (3, 8), (9, 12)]
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self.assertEqual(actual, expected)
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unittest.main(verbosity=2)
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