def test_default(self):
assert dumps([1 + 2j], default=str) == '["(1+2j)"]'
assert dumps([1 + 2j], default=str,
check_circular=False) == '["(1+2j)"]'
with pytest.raises(TypeError):
dumps([1 + 2j])
def test_tag_encoder(self):
assert dumps(Tag('Tag', True)) == 'Tag true'
assert dumps(Tag('Complex Tag', True)) == r'\"Complex Tag" true'
assert dumps(Tag('Tag', [1, 2, 3])) == 'Tag [1 2 3]'
assert dumps(Tag('Tag', [1, 2, 3], foo=1,
bar=2)) == 'Tag (foo=1 bar=2) [1 2 3]'
assert dumps(Tag.new('Tag', {'key with space': True},
None)) == '(Tag "key with space"=true)'
def test_dict_encoder(self):
assert dumps({}) == '{}'
assert dumps({"foo": "bar"}) == '{foo: "bar"}'
assert dumps({
"foo": "bar",
"ham": "eggs"
}) == '{foo: "bar" ham: "eggs"}'
assert dumps({"dict": {}}) == '{dict: {}}'
assert dumps({"list": []}) == '{list: []}'
def test_decoder_arguments(self):
with pytest.raises(TypeError) as err:
dumps("value", bad_argument=True)
assert str(err.value) == 'invalid argument: bad_argument'
with pytest.raises(TypeError) as err:
dumps("value", skipkeys=True)
assert str(
err.value) == 'FREDEncoder uses skip_keys (mind the underscore)'
def test_key_encoder(self):
assert dumps(
{
42: 42,
3.14: 3.14,
True: True,
False: False,
None: None,
Symbol('foo'): Symbol('foo'),
Symbol('foo bar'): Symbol('foo bar')
}
) == '{"42": 42 "3.14": 3.14 true: true false: false null: null foo: $foo "foo bar": $"foo bar"}'
with pytest.raises(TypeError):
dumps({1 + 2j: 'value'})
def test_indented_decoder(self):
assert dumps([{
'foo': 42,
'bar': {
'ham': 'spam'
}
}], indent=4) == EXAMPLE_1
def test_circular_dependencies_check(self):
with pytest.raises(ValueError):
dumps(1 + 2j, default=lambda x: [x])
with pytest.raises(ValueError):
a = []
a.append(a)
dumps(a)
with pytest.raises(ValueError):
a = {}
a["self"] = a
dumps(a)
def test_round_trips_random_fred(self, data):
src = dumps(data)
assert loads(src) == data
def test_round_trip_strings(self, data):
src = dumps(data)
print(repr(src))
assert loads(src) == data, src
def test_list_encoder(self):
assert dumps([]) == '[]'
assert dumps([1, 2, 3, 4]) == '[1 2 3 4]'
assert dumps([[]]) == '[[]]'
assert dumps([{}]) == '[{}]'
def test_dump_primitive_types(self):
# Constants
assert dumps(True) == 'true'
assert dumps(False) == 'false'
assert dumps(None) == 'null'
assert dumps(float('nan')) == 'nan'
assert dumps(float('inf')) == 'inf'
assert dumps(-float('inf')) == '-inf'
# Numeric
assert dumps(0) == '0'
assert dumps(42) == '42'
assert dumps(-42) == '-42'
assert dumps(42_000) == '42000'
assert dumps(0.0) == '0.0'
assert dumps(42.0) == '42.0'
assert dumps(-42.0) == '-42.0'
assert dumps(42e20) == '4.2e+21'
assert dumps(date(1970, 1, 1)) == '1970-01-01'
assert dumps(time(12, 59)) == '12:59:00'
assert dumps(datetime(1970, 1, 1, 12, 59)) == '1970-01-01_12:59:00'
# String-like
assert dumps('string') == '"string"'
assert dumps(b'bytes') == '`bytes`'
assert dumps(Symbol('symbol')) == '$symbol'
assert dumps(Symbol('escaped symbol')) == '$"escaped symbol"'
def test_key_options(self):
assert dumps({1 + 2j: "complex"}, skip_keys=True) == '{}'
assert dumps({
"b": "last",
"a": "first"
}, sort_keys=True) == '{a: "first" b: "last"}'