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# coding=utf-8
"""
Cmd2 unit/functional testing
Copyright 2016 Federico Ceratto <federico.ceratto@gmail.com>
Released under MIT license, see LICENSE file
"""
import sys
from pytest import fixture
import cmd2
# Help text for base cmd2.Cmd application
BASE_HELP = """Documented commands (type help <topic>):
========================================
_relative_load edit history pause pyscript run set shortcuts
cmdenvironment help load py quit save shell show
"""
# Help text for the history command
HELP_HISTORY = """history [arg]: lists past commands issued
| no arg: list all
| arg is integer: list one history item, by index
| a..b, a:b, a:, ..b -> list history items by a span of indices (inclusive)
| arg is string: list all commands matching string search
| arg is /enclosed in forward-slashes/: regular expression search
Usage: history [options] (limit on which commands to include)
Options:
-h, --help show this help message and exit
-s, --script Script format; no separation lines
"""
# Output from the shortcuts command with default built-in shortcuts
SHORTCUTS_TXT = """Single-key shortcuts for other commands:
!: shell
?: help
@: load
@@: _relative_load
"""
expect_colors = True
if sys.platform.startswith('win'):
expect_colors = False
# Output from the show command with default settings
SHOW_TXT = """abbrev: True
autorun_on_edit: False
case_insensitive: True
colors: {}
continuation_prompt: >
debug: False
echo: False
editor: vim
feedback_to_output: True
locals_in_py: True
prompt: (Cmd)
quiet: False
timing: False
""".format(expect_colors)
if expect_colors:
color_str = 'True '
else:
color_str = 'False'
SHOW_LONG = """
abbrev: True # Accept abbreviated commands
autorun_on_edit: False # Automatically run files after editing
case_insensitive: True # Upper- and lower-case both OK
colors: {} # Colorized output (*nix only)
continuation_prompt: > # On 2nd+ line of input
debug: False # Show full error stack on error
echo: False # Echo command issued into output
editor: vim # Program used by ``edit``
feedback_to_output: True # Include nonessentials in `|`, `>` results
locals_in_py: True # Allow access to your application in py via self
prompt: (Cmd) # The prompt issued to solicit input
quiet: False # Don't print nonessential feedback
timing: False # Report execution times
""".format(color_str)
class StdOut(object):
""" Toy class for replacing self.stdout in cmd2.Cmd instances for unit testing. """
def __init__(self):
self.buffer = ''
def write(self, s):
self.buffer += s
def read(self):
raise NotImplementedError
def clear(self):
self.buffer = ''
def normalize(block):
""" Normalize a block of text to perform comparison.
Strip newlines from the very beginning and very end Then split into separate lines and strip trailing whitespace
from each line.
"""
assert isinstance(block, str)
block = block.strip('\n')
return [line.rstrip() for line in block.splitlines()]
def run_cmd(app, cmd):
""" Clear StdOut buffer, run the command, extract the buffer contents, """
app.stdout.clear()
app.onecmd_plus_hooks(cmd)
out = app.stdout.buffer
app.stdout.clear()
return normalize(out)
@fixture
def base_app():
c = cmd2.Cmd()
c.stdout = StdOut()
return c
|
