def test_read_stacked_sources_with_strategies_for_none_values():
config = StackedConfig(DictSource({'a': None}),
DictSource({'a': None}),
strategy_map={
'a': strategies.collect,
})
result = [None, None]
assert config.a == result
assert list(config.items()) == [('a', result)]
def test_source_items(monkeypatch):
monkeypatch.setenv('MVP_A', '10')
config = StackedConfig(DictSource({
'a': 1,
'b': {
'c': 2
}
}), Environment('MVP'), DictSource({
'x': 6,
'b': {
'y': 7
}
}))
items = list(config.items())
assert items == [('a', 10), ('b', config.b), ('x', 6)]
items = list(config.b.items())
assert items == [('c', 2), ('y', 7)]
def test_source_items_prevent_shadowing_between_subsections_and_values(
reverse):
sources = [
DictSource({
'a': 1,
'b': {
'c': 2
}
}),
DictSource({
'x': 6,
'b': 5
}),
]
config = StackedConfig(*sources, reverse=reverse)
with pytest.raises(ValueError) as exc_info:
list(config.items())
assert "conflicts" in str(exc_info.value)
def test_source_items_with_strategies_and_untyped_source(
monkeypatch, inimaker):
monkeypatch.setenv('MVP_A', '100')
untyped_source = inimaker(u"""
[__root__]
a=1000
""")
config = StackedConfig(
Environment('MVP'), # last source still needs a typed source
DictSource({
'a': 1,
'x': [5, 6],
'b': {
'c': 2,
'd': [3, 4]
}
}),
DictSource({
'a': 10,
'x': [50, 60],
'b': {
'c': 20,
'd': [30, 40]
}
}),
INIFile(untyped_source),
strategy_map={
'a': strategies.add,
'x': strategies.collect, # keep lists intact
'c': strategies.collect, # collect values into list
'd': strategies.merge, # merge lists
})
items = list(config.items())
assert items == [('a', 1111), ('b', config.b), ('x', [[50, 60], [5, 6]])]
items = list(config.b.items())
assert items == [('c', [20, 2]), ('d', [30, 40, 3, 4])]