def test_invalid_interval_additions():
i = Interval((0, False), (1, False))
vals = [Interval((-1, True), (0, False)),
Interval((-1, False), (0, False)),
Interval((1, False), (2, True)),
Interval((1, False), (2, False)),
Interval((3, True), (4, False)),
Interval((3, False), (4, True)),
Interval((3, False), (4, False))
]
for v in vals:
yield raises(ValueError)(_add_intervals), i, v
def test_false_interval_intersections():
i = Interval((0, True), (1, True))
vals = [Interval((-1, True), (0, True)),
Interval((-1, True), (0, False)),
Interval((1, True), (2, True)),
Interval((1, False), (2, True)),
Interval((-2, True), (-1, True)),
Interval((2, True), (3, True))
]
results = [True] * 5 + [False]
intersect = lambda a, b, v: eq_(a & b, v,
msg="{} & {} == {}".format(a, b, v))
for v, r in zip(vals, results):
yield intersect, i, v, r
def test_sequential_interval_addition(self):
i = Interval((2, True), (3, True))
result = Interval((0, False), (3, True))
eq_(self.i + i, result, msg="{}+{}={}".format(self.i, i, self.i + i))
def test_invalid_interval_creation():
Interval((1, True), (0, True))
def setUp(self):
self.i = Interval((0, False), (2, False))
def test_nonsequential_interval_addition(self):
i = Interval((-2, True), (0, True))
result = Interval((-2, True), (2, False))
eq_(i + self.i, result, msg="{}+{}={}".format(i, self.i, i + self.i))
def test_non_overlapping_interval(self):
i = Interval((3, True), (4, True))
ok_(not self.i & i, msg="not {} & {}".format(self.i, i))
def test_overlapping_interval(self):
i = Interval((2, True), (3, True))
ok_(self.i & i, msg="{} & {}".format(self.i, i))
def test_preceding_interval(self):
i = Interval((2, True), (3, True))
ok_(self.i < i, msg="{} < {}".format(self.i, i))
def test_unequal_intervals(self):
i = Interval((0, True), (1, True))
ok_(not self.i == i, msg="{} != {}".format(self.i, i))
def setUp(self):
self.i = Interval((0, True), (2, True))