def test_thing_from_obj_kwargs():
t = Thing(x=1, y=2)
x = Thing.from_object(t, x=3, z='abc')
assert x == {'x': 3, 'y': 2, 'z': 'abc'}
def test_thing_from_obj_noop():
t = Thing(x=1, y=2)
x = Thing.from_object(t)
assert x is t
def test_thing_path():
t = Thing(a=1, b=2)
tt = Thing(t=t, c=3)
assert tt.t.a == 1
assert tt.t.b == 2
assert tt.c == 3
assert tt['t.a'] == 1
assert tt['t.b'] == 2
assert tt['c'] == 3
def test_thing_from_obj():
f = Thing.from_object
assert f(1) == 1
assert f((1, 2)) == (1, 2)
assert f([1, 2]) == [1, 2]
assert f(dict(a=1, b=2)) == Thing(a=1, b=2)
assert f(dict(sub=dict(a=1, b=2), c=3)) == Thing(sub=Thing(a=1, b=2), c=3)
def test_thing_from_obj_kwargs_only():
t = None
x = Thing.from_object(t, x=3, z='abc')
assert x == {'x': 3, 'z': 'abc'}
def test_thing():
t = Thing(a=1, b=2)
assert t.a == 1
assert t.b == 2
assert t['a'] == 1
assert t['b'] == 2
def test_thing_raises_attributeerror():
t = Thing(a=1, b=2)
with pytest.raises(AttributeError):
x = t.c
with pytest.raises(AttributeError):
y = t.a.b
def test_thing_raises_keyerror():
t = Thing(a=1, b=2)
with pytest.raises(KeyError):
x = t['c']
with pytest.raises(KeyError):
y = t['a.b']
def test_yaml_dump():
# Keys are deliberately not in alphabetical order
data = Thing(b=2, a=1)
out = io.StringIO()
yaml_dump(data, stream=out)
result = out.getvalue()
assert result == """b: 2\na: 1\n"""
"""
Demonstrate some awkward cases.
"""
from rjgtoys.thing import Thing
data = Thing.from_object({
'a.b': 1,
'c': {
'd.e': 2
},
'f.g': {
'h': 3
}
})
assert data['a.b'] == 1
try:
assert data.a.b == 1
except AttributeError:
print("You can't 'split' a dotted item name and use it as two attributes")
# The search for a point to 'split' an attribute path is not exhaustive:
# These work:
assert data['c']['d.e'] == 2
town=data['result']['value']['address']['town']))
def print_attrs(data):
print("The {type} called {name} lives in {town}".format(
type=data.result.value.type,
name=data.result.value.name,
town=data.result.value.address.town))
# The raw data can be printed:
print("Print raw data...")
print_items(data)
try:
print_attrs(data)
except AttributeError:
print("The raw data does not support attribute access")
# Convert to a Thing...
print("Now convert...")
data = Thing.from_object(data)
print_items(data)
print_attrs(data)