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######################################################################
#
# File: test/unit/test_arg_parser.py
#
# Copyright 2020 Backblaze Inc. All Rights Reserved.
#
# License https://www.backblaze.com/using_b2_code.html
#
######################################################################
import argparse
import sys
from b2._internal._cli.arg_parser_types import (
parse_comma_separated_list,
parse_millis_from_float_timestamp,
parse_range,
)
from b2._internal.arg_parser import B2ArgumentParser
from b2._internal.console_tool import B2
from .test_base import TestBase
class TestCustomArgTypes(TestBase):
def test_parse_comma_separated_list(self):
self.assertEqual([''], parse_comma_separated_list(''))
self.assertEqual(['1', '2', '3'], parse_comma_separated_list('1,2,3'))
def test_parse_millis_from_float_timestamp(self):
self.assertEqual(1367900664000, parse_millis_from_float_timestamp('1367900664'))
self.assertEqual(1367900664152, parse_millis_from_float_timestamp('1367900664.152'))
with self.assertRaises(ValueError):
parse_millis_from_float_timestamp('!$@$%@!@$')
def test_parse_range(self):
self.assertEqual((1, 2), parse_range('1,2'))
with self.assertRaises(argparse.ArgumentTypeError):
parse_range('1')
with self.assertRaises(argparse.ArgumentTypeError):
parse_range('1,2,3')
with self.assertRaises(ValueError):
parse_range('!@#,%^&')
class TestNonUTF8TerminalSupport(TestBase):
class ASCIIEncodedStream:
def __init__(self, original_stream):
self.original_stream = original_stream
self.encoding = 'ascii'
def write(self, data):
if isinstance(data, str):
data = data.encode(self.encoding, 'strict')
self.original_stream.buffer.write(data)
def flush(self):
self.original_stream.flush()
def check_help_string(self, command_class, command_name):
help_string = command_class.__doc__
# create a parser with a help message that is based on the command_class.__doc__ string
parser = B2ArgumentParser(description=help_string)
try:
old_stdout = sys.stdout
old_stderr = sys.stderr
sys.stdout = TestNonUTF8TerminalSupport.ASCIIEncodedStream(sys.stdout)
sys.stderr = TestNonUTF8TerminalSupport.ASCIIEncodedStream(sys.stderr)
parser.print_help()
except UnicodeEncodeError as e:
self.fail(
f'Failed to encode help message for command "{command_name}" on a non-UTF-8 terminal: {e}'
)
finally:
# Restore original stdout and stderr
sys.stdout = old_stdout
sys.stderr = old_stderr
def test_help_in_non_utf8_terminal(self):
command_classes = dict(B2.subcommands_registry.items())
command_classes['b2'] = B2
for command_name, command_class in command_classes.items():
with self.subTest(command_class=command_class, command_name=command_name):
self.check_help_string(command_class, command_name)
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