def test_coverage_empty(self):
"""
Interval coverage on empty walker.
"""
orig = []
expected = []
assert_equal(list(coverage(orig)), expected)
def test_coverage_regions(self):
"""
Interval coverage on two regions.
"""
orig = [('a', 1, 5), ('a', 2, 4), ('a', 4, 4), ('a', 5, 5),
('b', 6, 5), ('b', 7, 4), ('b', 8, 4), ('b', 12, 4)]
expected = [('a', 1, 2), ('a', 4, 5), ('b', 6, 8), ('b', 12, 12)]
assert_equal(list(coverage(orig)), expected)
def test_coverage(self):
"""
Simple interval coverage on one region.
"""
orig = [(1, 5), (2, 4), (3, 4), (4, 4), (5, 5), (7, 3), (8, 1), (9, 5), (10, 6)]
expected = [(1, 5), (7, 10)]
walker = (('a', p, v) for p, v in orig)
assert_equal([(b, e) for _, b, e in coverage(walker)], expected)
