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from types import MappingProxyType
import pytest
def test_snapshot_diff(snapshot):
my_dict = {
"field_0": True,
"field_1": "no_value",
"nested": {
"field_0": 1,
},
}
assert my_dict == snapshot
my_dict["field_1"] = "yes_value"
assert my_dict == snapshot(diff=0)
my_dict["nested"]["field_0"] = 2
assert my_dict == snapshot(diff=0)
def test_snapshot_diff_id(snapshot):
my_dict = {
"field_0": True,
"field_1": "no_value",
"field_2": 0,
"field_3": None,
"field_4": 1,
"field_5": False,
"field_6": (True, "hey", 2, None),
"field_7": {False, "no", None},
}
dict_large_snapshot = {
**my_dict,
"nested_0": dict(my_dict),
"nested_1": dict(my_dict),
}
assert dict_large_snapshot == snapshot(name="large snapshot")
dict_diff_large_snapshot = {
**dict_large_snapshot,
"field_1": "yes_value",
"field_6": ("hey", 2, False),
"field_7": {"yes", 0, None},
}
assert dict_diff_large_snapshot == snapshot(diff="large snapshot")
dict_case_3 = {
**dict_large_snapshot,
"nested_0": MappingProxyType({**my_dict, "field_0": 2}),
"nested_1": MappingProxyType({**my_dict, "field_0": 2}),
}
assert dict_case_3 == snapshot(name="case3", diff="large snapshot")
@pytest.mark.xfail(reason="Asserting snapshot does not exist")
def test_snapshot_no_diff_raises_exception(snapshot):
my_dict = {
"field_0": "value_0",
}
assert my_dict == snapshot(diff="does not exist index")
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