def test_it_does_not_encompass_other_range(self):
range1 = DateRange(self.date3, self.date4)
left_disjoint = DateRange(self.date1, self.date2)
right_disjoint = DateRange(self.date5, self.date5)
left_intersect = DateRange(self.date1, self.date3)
right_intersect = DateRange(self.date3, self.date6)
self.assertFalse(range1.encompasses(left_disjoint))
self.assertFalse(range1.encompasses(right_disjoint))
self.assertFalse(range1.encompasses(left_intersect))
self.assertFalse(range1.encompasses(right_intersect))
def test_it_is_not_encompassed_by_other_range(self):
range1 = DateRange(self.date3, self.date4)
left_disjoint = DateRange(self.date1, self.date2)
right_disjoint = DateRange(self.date5, self.date5)
left_intersect = DateRange(self.date1, self.date3)
right_intersect = DateRange(self.date3, self.date6)
self.assertFalse(left_disjoint.encompassed_by(range1))
self.assertFalse(right_disjoint.encompassed_by(range1))
self.assertFalse(left_intersect.encompassed_by(range1))
self.assertFalse(right_intersect.encompassed_by(range1))
def test_it_returns_the_intersection_of_disjoint_ranges(self):
range1 = DateRange(self.date1, self.date2)
range2 = DateRange(self.date3, self.date4)
self.assertTrue(range1.intersection(range2) is None)
def test_it_returns_the_intersection_of_two_equal_ranges(self):
range1 = DateRange(self.date1, self.date3)
range2 = DateRange(self.date1, self.date3)
range3 = DateRange(self.date1, self.date3)
self.assertEqual(range1.intersection(range2), range3)
def test_it_is_not_disjoint_from_another_range(self):
range1 = DateRange(self.date1, self.date2)
range2 = DateRange(self.date2, self.date4)
self.assertFalse(range1.disjoint(range2))
def test_it_returns_the_rightmost_range(self):
range1 = DateRange(self.date1, self.date3)
range2 = DateRange(self.date3, self.date4)
self.assertEqual(range1.rightmost(range2), range2)
def test_it_is_encompassed_by_other_range(self):
range1 = DateRange(self.date2, self.date4)
range2 = DateRange(self.date1, self.date4)
self.assertTrue(range1.encompassed_by(range2))
def test_it_iterates_the_days_between_two_dates(self):
range = DateRange(self.date1, self.date6)
expected = [ date(2015, 1, 1), date(2015, 1, 2), date(2015, 1, 3) ]
result = [ day for day in range.iterdates() ]
self.assertEqual(expected, result)
def test_it_intersects(self):
range1 = DateRange(self.date3, self.date4)
range2 = DateRange(self.date1, self.date3)
self.assertTrue(range1.intersection(range2))
def test_it_returns_the_intersection_with_a_range(self):
range1 = DateRange(self.date3, self.date4)
range2 = DateRange(self.date1, self.date3)
range3 = DateRange(self.date3, self.date3)
self.assertEqual(range1.intersection(range2), range3)