def test_discover_set_without_env_var_or_default():
s = {}
s_name = 'baz'
var = 'FOO'
# val = 'bar'
discover_set(s, s_name, var)
assert s_name not in s
def test_discover_set_witout_env_var_and_keeps_existing():
s_name = 'baz'
var = 'FOO'
val = 'bar'
default = 'smoo'
s = {s_name: val}
discover_set(s, s_name, var, default=default)
assert s_name in s
assert s[s_name] == val
def test_discover_set_with_default():
s = {}
s_name = 'baz'
var = 'FOO'
# val = 'bar'
default = 'smoo'
discover_set(s, s_name, var, default=default)
assert s_name in s
assert s[s_name] == default
def test_discover_set_with_env_var():
s = {}
s_name = 'baz'
var = 'FOO'
val = 'bar'
os.environ[var] = val
discover_set(s, s_name, var)
assert s_name in s
assert s[s_name] == val
del os.environ[var]
def test_discover_set_with_env_var_and_modifier():
s = {}
s_name = 'baz'
var = 'FOO'
val = 'bar'
os.environ[var] = val
discover_set(s, s_name, var, modifier=str.upper)
assert s_name in s
assert s[s_name] == val.upper()
del os.environ[var]
def test_discover_set_with_env_var_and_existing():
s_name = 'baz'
var = 'FOO'
val = 'bar'
default = 'smoo'
s = {s_name: val}
os.environ[var] = val
discover_set(s, s_name, var, default=default)
assert s_name in s
assert s[s_name] == val
del os.environ[var]