def test_many_pops(self):
ss = StackSet()
self.fill_stack(ss, 10000)
for i in xrange(0, 9000):
ss.pop()
assert len(ss) == 1000
assert ss.peek() == 999
def test_push_into_empty(self):
ss = StackSet()
ss.push('hi')
assert len(ss) == 1
assert ss.peek() == 'hi'
k = ss.pop()
assert len(ss) == 0
assert k == 'hi'
def test_push_multiple_replace_multiple(self):
ss = StackSet()
self.fill_stack(ss, 100)
ss.push(5)
ss.push(50)
ss.push(55)
ss.push(105)
assert 5 in ss
assert 50 in ss
assert 55 in ss
assert 105 in ss
assert len(ss) == 101
assert ss.peek() == 105
def test_empty_repr(self):
ss = StackSet()
assert ss.peek() is None
assert repr(ss) == 'StackSet([])'
def test_str(self):
ss = StackSet()
self.fill_stack(ss, 5)
assert ss.peek() == 4
assert str(ss) == '[0, 1, 2, 3, 4]'
def test_cons3(self):
ss = StackSet([1,2,3,4,5])
assert len(ss) == 5
assert ss.peek() == 5
def test_cons1(self):
ss = StackSet()
assert len(ss) == 0
assert ss.peek() is None