def test_intsum():
y = generator.intsum()
assert next(y) == 0
assert next(y) == 1
assert next(y) == 3
assert next(y) == 6
assert next(y) == 10
assert next(y) == 15
def test_intsum(self):
g = gen.intsum(10)
assert next(g) == 0
assert next(g) == 1
assert next(g) == 3
assert next(g) == 6
assert next(g) == 10
assert next(g) == 15
def test_intsum():
g = gen.intsum()
assert next(g) == 0
assert next(g) == 1
assert next(g) == 3
assert next(g) == 6
assert next(g) == 10
assert next(g) == 15
def test_intsum():
g = gen.intsum()
assert next(g) == 0
assert next(g) == 1
assert next(g) == 2
assert next(g) == 3
assert next(g) == 4
assert next(g) == 5
def test_intsum():
g = gen.intsum()
assert g.next() == 0
assert g.next() == 1
assert g.next() == 3
assert g.next() == 6
assert g.next() == 10
assert g.next() == 15
def test_intsum2():
g2 = gen.intsum()
assert next(g2) == 0
assert next(g2) == 1
assert next(g2) == 3
assert next(g2) == 6
assert next(g2) == 10
assert next(g2) == 15
def test_intsum():
g = gs.intsum()
for val in [0, 1, 3, 6, 10]:
assert next(g) == val
def test_intsum():
g = gs.intsum()
for val in [0, 1, 3, 6, 10]:
assert next(g) == val