xonsh/tests/test_history.py
2016-07-20 15:16:46 +03:00

210 lines
6.6 KiB
Python

# -*- coding: utf-8 -*-
"""Tests the xonsh history."""
# pylint: disable=protected-access
# TODO: Remove the following pylint directive when it correctly handles calls
# to nose assert_xxx functions.
# pylint: disable=no-value-for-parameter
from __future__ import unicode_literals, print_function
import io
import os
import sys
import shlex
from xonsh.lazyjson import LazyJSON
from xonsh.history import History, _hist_create_parser, _hist_parse_args
from xonsh import history
import pytest
@pytest.yield_fixture
def hist():
h = History(filename='xonsh-HISTORY-TEST.json', here='yup', sessionid='SESSIONID', gc=False)
yield h
os.remove(h.filename)
def test_hist_init(hist):
"""Test initialization of the shell history."""
with LazyJSON(hist.filename) as lj:
obs = lj['here']
assert 'yup' == obs
def test_hist_append(hist, xonsh_builtins):
"""Verify appending to the history works."""
xonsh_builtins.__xonsh_env__['HISTCONTROL'] = set()
hf = hist.append({'joco': 'still alive'})
assert hf is None
assert 'still alive' == hist.buffer[0]['joco']
def test_hist_flush(hist, xonsh_builtins):
"""Verify explicit flushing of the history works."""
hf = hist.flush()
assert hf is None
xonsh_builtins.__xonsh_env__['HISTCONTROL'] = set()
hist.append({'joco': 'still alive'})
hf = hist.flush()
assert hf is not None
while hf.is_alive():
pass
with LazyJSON(hist.filename) as lj:
obs = lj['cmds'][0]['joco']
assert 'still alive' == obs
def test_cmd_field(hist, xonsh_builtins):
# in-memory
xonsh_builtins.__xonsh_env__['HISTCONTROL'] = set()
hf = hist.append({'rtn': 1})
assert hf is None
assert 1 == hist.rtns[0]
assert 1 == hist.rtns[-1]
assert None == hist.outs[-1]
# slice
assert [1] == hist.rtns[:]
# on disk
hf = hist.flush()
assert hf is not None
assert 1 == hist.rtns[0]
assert 1 == hist.rtns[-1]
assert None == hist.outs[-1]
def run_show_cmd(hist_args, commands, base_idx=0, step=1):
"""Run and evaluate the output of the given show command."""
stdout = sys.stdout
stdout.seek(0, io.SEEK_SET)
stdout.truncate()
history.history_main(hist_args)
stdout.seek(0, io.SEEK_SET)
hist_lines = stdout.readlines()
assert len(commands) == len(hist_lines)
for idx, (cmd, actual) in enumerate(zip(commands, hist_lines)):
expected = ' {:d}: {:s}\n'.format(base_idx + idx * step, cmd)
assert expected == actual
def test_show_cmd(hist, xonsh_builtins):
"""Verify that CLI history commands work."""
cmds = ['ls', 'cat hello kitty', 'abc', 'def', 'touch me', 'grep from me']
sys.stdout = io.StringIO()
xonsh_builtins.__xonsh_history__ = hist
xonsh_builtins.__xonsh_env__['HISTCONTROL'] = set()
for ts,cmd in enumerate(cmds): # populate the shell history
hist.append({'inp': cmd, 'rtn': 0, 'ts':(ts+1, ts+1.5)})
# Verify an implicit "show" emits show history
run_show_cmd([], cmds)
# Verify an explicit "show" with no qualifiers emits
# show history.
run_show_cmd(['show'], cmds)
# Verify an explicit "show" with a reversed qualifier
# emits show history in reverse order.
run_show_cmd(['show', '-r'], list(reversed(cmds)),
len(cmds) - 1, -1)
# Verify that showing a specific history entry relative to
# the start of the history works.
run_show_cmd(['show', '0'], [cmds[0]], 0)
run_show_cmd(['show', '1'], [cmds[1]], 1)
# Verify that showing a specific history entry relative to
# the end of the history works.
run_show_cmd(['show', '-2'], [cmds[-2]],
len(cmds) - 2)
# Verify that showing a history range relative to the start of the
# history works.
run_show_cmd(['show', '0:2'], cmds[0:2], 0)
run_show_cmd(['show', '1::2'], cmds[1::2], 1, 2)
# Verify that showing a history range relative to the end of the
# history works.
run_show_cmd(['show', '-2:'],
cmds[-2:], len(cmds) - 2)
run_show_cmd(['show', '-4:-2'],
cmds[-4:-2], len(cmds) - 4)
sys.stdout = sys.__stdout__
def test_histcontrol(hist, xonsh_builtins):
"""Test HISTCONTROL=ignoredups,ignoreerr"""
xonsh_builtins.__xonsh_env__['HISTCONTROL'] = 'ignoredups,ignoreerr'
assert len(hist.buffer) == 0
# An error, buffer remains empty
hist.append({'inp': 'ls foo', 'rtn': 2})
assert len(hist.buffer) == 0
# Success
hist.append({'inp': 'ls foobazz', 'rtn': 0})
assert len(hist.buffer) == 1
assert 'ls foobazz' == hist.buffer[-1]['inp']
assert 0 == hist.buffer[-1]['rtn']
# Error
hist.append({'inp': 'ls foo', 'rtn': 2})
assert len(hist.buffer) == 1
assert 'ls foobazz' == hist.buffer[-1]['inp']
assert 0 == hist.buffer[-1]['rtn']
# File now exists, success
hist.append({'inp': 'ls foo', 'rtn': 0})
assert len(hist.buffer) == 2
assert 'ls foo' == hist.buffer[-1]['inp']
assert 0 == hist.buffer[-1]['rtn']
# Success
hist.append({'inp': 'ls', 'rtn': 0})
assert len(hist.buffer) == 3
assert 'ls' == hist.buffer[-1]['inp']
assert 0 == hist.buffer[-1]['rtn']
# Dup
hist.append({'inp': 'ls', 'rtn': 0})
assert len(hist.buffer) == 3
# Success
hist.append({'inp': '/bin/ls', 'rtn': 0})
assert len(hist.buffer) == 4
assert '/bin/ls' == hist.buffer[-1]['inp']
assert 0 == hist.buffer[-1]['rtn']
# Error
hist.append({'inp': 'ls bazz', 'rtn': 1})
assert len(hist.buffer) == 4
assert '/bin/ls' == hist.buffer[-1]['inp']
assert 0 == hist.buffer[-1]['rtn']
# Error
hist.append({'inp': 'ls bazz', 'rtn': -1})
assert len(hist.buffer) == 4
assert '/bin/ls' == hist.buffer[-1]['inp']
assert 0 == hist.buffer[-1]['rtn']
@pytest.mark.parametrize('args', [ '-h', '--help', 'show -h', 'show --help'])
def test_parse_args_help(args, capsys):
with pytest.raises(SystemExit):
args = _hist_parse_args(shlex.split(args))
assert 'show this help message and exit' in capsys.readouterr()[0]
@pytest.mark.parametrize('args, exp', [
('', ('show', 'session', [])),
('show', ('show', 'session', [])),
('show session', ('show', 'session', [])),
('show session 15', ('show', 'session', ['15'])),
('show bash 3:5 15:66', ('show', 'bash', ['3:5', '15:66'])),
('show zsh 3 5:6 16 9:3', ('show', 'zsh', ['3', '5:6', '16', '9:3'])),
])
def test_parser_show(args, exp):
args = _hist_parse_args(shlex.split(args))
action, session, slices = exp
assert args.action == action
assert args.session == session
assert args.slices == slices