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test_alias_dict.py
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import pytest
from aldict import AliasDict, AliasValueError, AliasError
def test_alias_dict(alias_dict):
assert alias_dict[".toml"] == {
"callable": "load",
"import_mod": "tomli",
"read_mode": "r",
}
assert (
alias_dict[".yml"]
== alias_dict[".yaml"]
== {"callable": "safe_load", "import_mod": "yaml", "read_mode": "r"}
)
def test_add_alias(alias_dict):
alias_dict.add_alias(".toml", ".tml")
assert (
alias_dict[".toml"]
== alias_dict[".tml"]
== {"callable": "load", "import_mod": "tomli", "read_mode": "r"}
)
def test_add_multiple_aliases(alias_dict):
alias_dict.add_alias(".json", ".jsn", ".joojoo", ".jazz")
assert list(alias_dict.keys()) == [
".json",
".yaml",
".toml",
".yml",
".jsn",
".joojoo",
".jazz",
]
def test_add_alias_raises(alias_dict):
with pytest.raises(
AliasValueError, match="Key and corresponding alias cannot be equal: '.toml'"
):
alias_dict.add_alias(".toml", ".toml")
def test_update_alias(alias_dict):
# redirect ".yml" to point to ".toml"
alias_dict.add_alias(".toml", ".yml")
assert list(alias_dict.items()) == [
(".json", {"callable": "load", "import_mod": "json", "read_mode": "r"}),
(".yaml", {"callable": "safe_load", "import_mod": "yaml", "read_mode": "r"}),
(".toml", {"callable": "load", "import_mod": "tomli", "read_mode": "r"}),
(".yml", {"callable": "load", "import_mod": "tomli", "read_mode": "r"}),
]
def test_update_alias_raises(alias_dict):
with pytest.raises(KeyError, match=".foo"):
alias_dict.add_alias(".foo", ".bar")
def test_remove_alias(alias_dict):
assert list(alias_dict.keys()) == [".json", ".yaml", ".toml", ".yml"]
alias_dict.remove_alias(".yml")
assert list(alias_dict.keys()) == [".json", ".yaml", ".toml"]
assert list(alias_dict.items()) == [
(".json", {"callable": "load", "import_mod": "json", "read_mode": "r"}),
(".yaml", {"callable": "safe_load", "import_mod": "yaml", "read_mode": "r"}),
(".toml", {"callable": "load", "import_mod": "tomli", "read_mode": "r"}),
]
def test_remove_alias_raises(alias_dict):
assert list(alias_dict.keys()) == [".json", ".yaml", ".toml", ".yml"]
with pytest.raises(AliasError, match=".foo"):
alias_dict.remove_alias(".foo")
def test_remove_multiple_aliases(alias_dict):
alias_dict.add_alias(".json", ".jsn")
assert list(alias_dict.keys()) == [".json", ".yaml", ".toml", ".yml", ".jsn"]
alias_dict.remove_alias(".yml", ".jsn")
assert list(alias_dict.keys()) == [".json", ".yaml", ".toml"]
def test_read_aliases(alias_dict):
alias_dict.add_alias(".toml", ".tml")
alias_dict.add_alias(".json", ".jsn")
alias_dict.add_alias(".json", ".whaaaaat!")
assert list(alias_dict.aliases()) == [".yml", ".tml", ".jsn", ".whaaaaat!"]
def test_dictviews(alias_dict):
assert list(alias_dict.keys()) == [".json", ".yaml", ".toml", ".yml"]
assert list(alias_dict.values()) == [
{"import_mod": "json", "callable": "load", "read_mode": "r"},
{"import_mod": "yaml", "callable": "safe_load", "read_mode": "r"},
{"import_mod": "tomli", "callable": "load", "read_mode": "r"},
]
assert list(alias_dict.items()) == [
(".json", {"callable": "load", "import_mod": "json", "read_mode": "r"}),
(".yaml", {"callable": "safe_load", "import_mod": "yaml", "read_mode": "r"}),
(".toml", {"callable": "load", "import_mod": "tomli", "read_mode": "r"}),
(".yml", {"callable": "safe_load", "import_mod": "yaml", "read_mode": "r"}),
]
def test_remove_key_and_aliases(alias_dict):
assert list(alias_dict.keys()) == [".json", ".yaml", ".toml", ".yml"]
alias_dict.pop(".yaml")
assert list(alias_dict.keys()) == [".json", ".toml"]
def test_contains(alias_dict):
alias_dict.add_alias(".toml", ".tml")
assert (".toml" in alias_dict) is True
assert (".tml" in alias_dict) is True
assert (".foo" in alias_dict) is False
def test_get(alias_dict):
assert alias_dict.get(".yaml") == {
"callable": "safe_load",
"import_mod": "yaml",
"read_mode": "r",
}
assert alias_dict.get(".yml") == {
"callable": "safe_load",
"import_mod": "yaml",
"read_mode": "r",
}
assert alias_dict.get(".foo") is None
def test_pop_alias_doesnt_remove_key(alias_dict):
assert alias_dict.pop(".yml") == {
"callable": "safe_load",
"import_mod": "yaml",
"read_mode": "r",
}
assert ".yaml" in alias_dict
def test_iter(alias_dict):
assert [k for k in alias_dict] == [".json", ".yaml", ".toml", ".yml"]
def test_origin_keys(alias_dict):
assert list(alias_dict.origin_keys()) == [".json", ".yaml", ".toml"]
def test_aliased_keys(alias_dict):
assert list(alias_dict.aliased_keys()) == [(".yaml", [".yml"])]
alias_dict.add_alias(".toml", ".tml", ".tommy", ".tomograph")
assert list(alias_dict.aliased_keys()) == [
(".yaml", [".yml"]),
(".toml", [".tml", ".tommy", ".tomograph"]),
]
def test_repr(alias_dict):
assert str(alias_dict) == (
"AliasDict(dict_items(["
"('.json', {'import_mod': 'json', 'callable': 'load', 'read_mode': 'r'}), "
"('.yaml', {'import_mod': 'yaml', 'callable': 'safe_load', 'read_mode': 'r'}), "
"('.toml', {'import_mod': 'tomli', 'callable': 'load', 'read_mode': 'r'}), "
"('.yml', {'import_mod': 'yaml', 'callable': 'safe_load', 'read_mode': 'r'})"
"]))"
)
def test_eq():
ad_0 = {"a": 1, "b": 2}
ad_1 = AliasDict(ad_0)
ad_1.add_alias("a", "aa", "aaa")
ad_2 = AliasDict(ad_0)
ad_2.add_alias("a", "aa", "aaa")
ad_3 = AliasDict(ad_0)
ad_3.add_alias("a", "abc")
assert ad_1 == ad_2
assert ad_1 != ad_3
assert ad_2 != ad_3
def test_dict_len_includes_aliases(alias_dict):
assert list(alias_dict.keys()) == [".json", ".yaml", ".toml", ".yml"]
assert len(alias_dict) == 4
def test_popitem(alias_dict):
# pops first item -> MutableMapping.popitem()
assert alias_dict.popitem() == (
".json",
{"callable": "load", "import_mod": "json", "read_mode": "r"},
)
assert alias_dict.popitem() == (
".yaml",
{"callable": "safe_load", "import_mod": "yaml", "read_mode": "r"},
)
assert len(alias_dict.aliased_keys()) == 0
assert list(alias_dict.keys()) == [".toml"]
def test_clear(alias_dict):
alias_dict.clear()
assert len(alias_dict.items()) == 0
def test_clear_aliases(alias_dict):
alias_dict.clear_aliases()
assert len(alias_dict.aliases()) == 0
assert list(alias_dict.items()) == [
(".json", {"callable": "load", "import_mod": "json", "read_mode": "r"}),
(".yaml", {"callable": "safe_load", "import_mod": "yaml", "read_mode": "r"}),
(".toml", {"callable": "load", "import_mod": "tomli", "read_mode": "r"}),
]
def test_setdefault():
ad = AliasDict({"a": 1, "b": 2})
ad.setdefault("foo", "bar")
ad.add_alias("foo", "fizz")
assert ad["foo"] == "bar"
assert ad["fizz"] == "bar"
def test_setdefault_on_existing_aliased_key():
ad = AliasDict({"a": 1, "b": 2})
ad.setdefault("a", 42)
ad.add_alias("a", "aa")
assert ad["a"] == 1
assert ad["aa"] == 1
def test_update_modifies_aliases():
ad = AliasDict({"a": 1, "b": 2})
ad.add_alias("a", "aa", "aaa")
ad.update(**{"a": 40, "y": 50})
assert list(ad.items()) == [("a", 40), ("b", 2), ("y", 50), ("aa", 40), ("aaa", 40)]