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from xonsh.lib.collections import ChainDB
def test_dddi():
a = {"a": {"a": {"a": 1}}}
z = ChainDB(a)
assert isinstance(z["a"], ChainDB)
assert isinstance(z["a"]["a"], ChainDB)
assert isinstance(z["a"]["a"]["a"], int)
assert z["a"]["a"]["a"] + 1 == 2
def test_second_mapping():
m1 = {"a": {"m": {"x": 0}}}
m2 = {"a": {"m": {"y": 1}}}
z = ChainDB(m1)
z.maps.append(m2)
assert isinstance(z["a"], ChainDB)
assert isinstance(z["a"]["m"].maps, list)
assert z["a"]["m"]["y"] == 1
def test_double_mapping():
m1 = {"a": {"m": {"y": 0}}}
m2 = {"a": {"m": {"y": 1}}}
z = ChainDB(m1)
z.maps.append(m2)
assert isinstance(z["a"], ChainDB)
assert isinstance(z["a"]["m"].maps, list)
assert isinstance(z["a"]["m"]["y"], int)
assert z["a"]["m"]["y"] == 1
def test_list_mapping():
m1 = {"a": {"m": "x"}}
m2 = {"a": {"m": "y"}}
z = ChainDB(m1)
z.maps.append(m2)
assert isinstance(z["a"], ChainDB)
assert isinstance(z["a"]["m"], str)
assert z["a"]["m"] == "y"
def test_mixed_mapping():
m1 = {"a": {"m": {"y": 1}}}
m2 = {"a": {"m": 1}}
z = ChainDB(m1)
z.maps.append(m2)
assert isinstance(z["a"], ChainDB)
assert isinstance(z["a"]["m"], int)
assert z["a"]["m"] == 1
def test_exactness():
d = {"y": 1}
m1 = {"a": {"m": d}}
z = ChainDB(m1)
assert isinstance(z["a"], ChainDB)
assert isinstance(z["a"]["m"], ChainDB)
assert isinstance(z["a"]["m"].maps[0], dict)
assert d is z["a"]["m"].maps[0]
def test_exactness_setting():
d = {"y": 1}
m1 = {"a": {"m": d}}
z = ChainDB(m1)
e = {"z": 2}
z["a"]["m"] = e
assert isinstance(z["a"], ChainDB)
assert isinstance(z["a"]["m"], ChainDB)
assert isinstance(z["a"]["m"].maps[0], dict)
assert e is z["a"]["m"].maps[0]
def test_exactness_setting_multi():
d = "a"
e = "b"
m1 = {"a": {"m": d}}
m2 = {"a": {"m": e}}
z = ChainDB(m1)
z.maps.append(m2)
g = ("c",)
z["a"]["m"] = g
assert isinstance(z["a"], ChainDB)
assert isinstance(z["a"]["m"], tuple)
assert isinstance(z["a"].maps[0], dict)
assert g is z["a"].maps[1]["m"]
# We sent this to the first map not the last
assert z["a"]["m"] is g
def test_exactness_setting_multi2():
d = [1, 2]
e = [3, 4]
ee = [5, 6]
m1 = {"a": {"m": d}}
m2 = {"a": {"m": e, "mm": ee}}
z = ChainDB(m1)
z.maps.append(m2)
g = [-1, -2]
z["a"]["mm"] = g
assert isinstance(z["a"], ChainDB)
assert isinstance(z["a"]["m"], list)
assert isinstance(z["a"].maps[0], dict)
assert g is z["a"].maps[1]["mm"]
assert z["a"]["mm"] is g
assert z["a"]["m"] == [1, 2, 3, 4]
def test_exactness_setting_multi_novel():
d = [1, 2]
e = [3, 4]
m1 = {"a": {"m": d}}
m2 = {"a": {"m": e}}
z = ChainDB(m1)
z.maps.append(m2)
g = [-1, -2]
z["a"]["mm"] = g
assert isinstance(z["a"], ChainDB)
assert isinstance(z["a"]["m"], list)
assert isinstance(z["a"].maps[0], dict)
assert g is z["a"].maps[0]["mm"]
assert g is z["a"]["mm"]
def test_dicts_in_lists():
c = [{"m": 1}, {"n": 2}]
d = [{"o": 3}, {"p": 4}]
t = c + d
m1 = {"a": {"b": c}}
m2 = {"a": {"b": d}}
z = ChainDB(m1)
z.maps.append(m2)
assert isinstance(z["a"], ChainDB)
assert isinstance(z["a"]["b"], list)
assert z["a"]["b"] == t
assert c[0] is z["a"]["b"][0]
assert c[1] is z["a"]["b"][1]
assert d[0] is z["a"]["b"][2]
assert d[1] is z["a"]["b"][3]
def test_dicts_in_lists_mutation():
c = [{"m": 1}, {"n": 2}]
d = [{"o": 3}, {"p": 4}]
m1 = {"a": {"b": c}}
m2 = {"a": {"b": d}}
z = ChainDB(m1)
z.maps.append(m2)
append_list = z["a"]["b"]
append_list.append({"hi": "world"})
assert isinstance(append_list, list)
assert z["a"]["b"] != append_list
extend_list = z["a"]["b"]
extend_list.extend([{"hi": "world"}, {"spam": "eggs"}])
assert z["a"]["b"] != extend_list
def test_sets():
m1 = {"a": {"b": {1, 2}}}
m2 = {"a": {"b": {3, 4}}}
z = ChainDB(m1)
z.maps.append(m2)
assert isinstance(z["a"]["b"], set)
assert z["a"]["b"] == {1, 2, 3, 4}
def test_mixed_types():
m1 = {"a": {"b": {1, 2}}}
m2 = {"a": {"b": [3, 4]}}
z = ChainDB(m1)
z.maps.append(m2)
assert isinstance(z["a"]["b"], list)
assert z["a"]["b"] == [1, 2, 3, 4]
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