def test_set_type_invalid_fallback(capfd, args):
args.VARIABLE = "PATH"
args.type = "numeric"
args.description = None
configuration = get_variable_information_manager(args.VARIABLE,
read_only=True)
assert (configuration[args.VARIABLE] is None)
command(args)
stdout, stderr = capfd.readouterr()
assert ("Set type for 'PATH'." in stdout)
assert (not stderr)
configuration = get_variable_information_manager(args.VARIABLE,
read_only=True)
assert (configuration[args.VARIABLE]["type"] == "numeric")
# Normally, the commands now might fail for the user because PATH clearly
# contains a non-numeric value. However, `epc set` should have a fallback
# routine.
args.type = "path"
command(args)
stdout, stderr = capfd.readouterr()
assert ("Set type for 'PATH'." in stdout)
assert (not stderr)
configuration = get_variable_information_manager(args.VARIABLE,
read_only=True)
assert (configuration[args.VARIABLE]["type"] == "path")
def command(args):
try:
env_var, _ = args.environment[args.VARIABLE]
except Exception:
# The environment variable object failed to instantiate. This commonly
# happens if the type conflicts with the value in the environment.
# To allow the user to continue, we can always fall back using the
# default heuristics.
env_var = create_environment_variable(
args.VARIABLE, args.environment.current_environment)
varinfo = env_var.extended_attributes
conf_to_apply = dict()
if args.type is not None:
print("Set type for '{0}'.".format(args.VARIABLE))
conf_to_apply["type"] = args.type
if args.description is not None:
print("Set description for '{0}'.".format(args.VARIABLE))
conf_to_apply["description"] = args.description
if conf_to_apply:
varinfo.apply(conf_to_apply)
varinfo_manager = get_variable_information_manager(args.VARIABLE,
read_only=False)
if all(not x for x in conf_to_apply.values()):
# If all the configuration is gone (reset to empty) for the
# variable, delete the entire record.
del varinfo_manager[args.VARIABLE]
else:
# Save the changes with the hardcoded "local" source tag.
varinfo_manager.set(args.VARIABLE, varinfo, "local")
def test_set_type(capfd, args):
args.VARIABLE = "PATH"
args.type = "numeric"
args.description = None
configuration = get_variable_information_manager(args.VARIABLE,
read_only=True)
assert (configuration[args.VARIABLE] is None)
command(args)
stdout, stderr = capfd.readouterr()
assert ("Set type for 'PATH'." in stdout)
assert (not stderr)
configuration = get_variable_information_manager(args.VARIABLE,
read_only=True)
assert (configuration[args.VARIABLE]["type"] == "numeric")
def test_set_multiple(capfd, args):
args.VARIABLE = "PATH"
args.type = "string"
args.description = "Multiple tested."
configuration = get_variable_information_manager(args.VARIABLE,
read_only=True)
assert (configuration[args.VARIABLE] is None)
command(args)
stdout, stderr = capfd.readouterr()
assert ("Set type for 'PATH'." in stdout)
assert ("Set description for 'PATH'." in stdout)
assert (not stderr)
configuration = get_variable_information_manager(args.VARIABLE,
read_only=True)
assert (configuration[args.VARIABLE]["type"] == "string")
assert (configuration[args.VARIABLE]["description"] == "Multiple tested.")
def test_get_description_local(capfd, args):
manager = get_variable_information_manager("DUMMY_VAR", read_only=False)
manager.set("DUMMY_VAR", MockExtendedData(), "test-info")
args.VARIABLE = "DUMMY_VAR"
command(args)
stdout, stderr = capfd.readouterr()
assert("Type: 'path'" in stdout)
assert("Description:\n\ttest" in stdout)
assert("Source: test-info" in stdout)
assert(not stderr)
def test_delete(capfd, args):
args.VARIABLE = "PATH"
args.type = "foo"
args.description = "Delete test."
command(args)
capfd.readouterr()
# Reset the configuration to empty.
args.type = ""
args.description = ""
command(args)
stdout, stderr = capfd.readouterr()
assert ("Set type for 'PATH'." in stdout)
assert ("Set description for 'PATH'." in stdout)
assert (not stderr)
configuration = get_variable_information_manager(args.VARIABLE,
read_only=True)
assert (configuration[args.VARIABLE] is None)
def __create_global_shell_and_env():
"""Creates a valid :py:class:`.shell.Shell` and
:py:class:`.environment.Environment` instance for the current running
system, shell, and configuration, to be used as the basis of injected state
by the subcommands.
Returns
-------
shell : .shell.Shell
The current Shell backend implementation.
environment : .environment.Environment
The handler for environment variable access.
"""
return get_shell_and_env_always(
os.environ,
assemble_standard_type_heuristics_pipeline(
varcfg_user_loader=lambda varname:
get_variable_information_manager(varname, read_only=True),
varcfg_description_loader=lambda varname:
get_community_variable_information_manager(varname,
read_only=True)
)
)