def test_int():
num = Asserter(1)
num < 2
num > 0
num == 1
with assert_raises():
num <= 0
with assert_raises():
num == 2
with assert_raises():
3 < num < 5
def test_dict():
d = Asserter(dict(a=3))
"a" in d
with assert_raises():
"b" in d
d["a"] == 3
with assert_raises():
d["a"] == 4
d.keys() == ["a"]
with assert_raises():
d.keys() == ["b"]
def test_nested():
orig = Dog(13)
obj = Asserter(orig)
obj.is_(orig)
obj.isinstance(Dog)
with assert_raises():
obj.isinstance(int)
obj.say() == "woof"
with assert_raises():
obj.say() == "quack"
obj.age == 13
with assert_raises():
obj.age == 15
def test_list():
orig = range(10)
l = Asserter(orig)
l.is_(orig)
l.length() == 10
with assert_raises():
l.length() == 9
