def test_set_config_new_section(self):
"""
``_Config.set_config`` can be called with the name of a section that does
not already exist to create that section and set an item in it.
"""
basedir = self.mktemp()
new_config = config_from_string(basedir, "", "",
ValidConfiguration.everything())
new_config.set_config("foo", "bar", "value1")
self.assertEqual(new_config.get_config("foo", "bar"), "value1")
def test_set_config_replace(self):
"""
``_Config.set_config`` can be called with a section and item that already
exists to change an existing value to a new one.
"""
basedir = self.mktemp()
new_config = config_from_string(basedir, "", "",
ValidConfiguration.everything())
new_config.set_config("foo", "bar", "value1")
new_config.set_config("foo", "bar", "value2")
self.assertEqual(new_config.get_config("foo", "bar"), "value2")
def test_set_config_rejects_invalid_config(self):
"""
``_Config.set_config`` raises ``UnknownConfigError`` if the section or
item is not recognized by the validation object and does not set the
value.
"""
# Make everything invalid.
valid_config = ValidConfiguration.nothing()
new_config = config_from_string(self.mktemp(), "", "", valid_config)
with self.assertRaises(UnknownConfigError):
new_config.set_config("foo", "bar", "baz")
with self.assertRaises(MissingConfigEntry):
new_config.get_config("foo", "bar")
def test_set_config_write(self):
"""
``_Config.set_config`` persists the configuration change so it can be
re-loaded later.
"""
# Let our nonsense config through
valid_config = ValidConfiguration.everything()
basedir = FilePath(self.mktemp())
basedir.makedirs()
cfg = basedir.child(b"tahoe.cfg")
cfg.setContent(b"")
new_config = read_config(basedir.path, "", [], valid_config)
new_config.set_config("foo", "bar", "value1")
loaded_config = read_config(basedir.path, "", [], valid_config)
self.assertEqual(
loaded_config.get_config("foo", "bar"),
"value1",
)