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# coding: utf-8
"""Tests for the IPython tab-completion machinery.
"""
#-----------------------------------------------------------------------------
# Module imports
#-----------------------------------------------------------------------------
# stdlib
import os
import sys
import unittest
# third party
import nose.tools as nt
# our own packages
from IPython.utils.tempdir import TemporaryDirectory
from IPython.core.history import HistoryManager, extract_hist_ranges
def setUp():
nt.assert_equal(sys.getdefaultencoding(), "ascii")
def test_history():
ip = get_ipython()
with TemporaryDirectory() as tmpdir:
hist_manager_ori = ip.history_manager
hist_file = os.path.join(tmpdir, 'history.sqlite')
try:
ip.history_manager = HistoryManager(shell=ip, hist_file=hist_file)
hist = ['a=1', 'def f():\n test = 1\n return test', u"b='€Æ¾÷ß'"]
for i, h in enumerate(hist, start=1):
ip.history_manager.store_inputs(i, h)
ip.history_manager.db_log_output = True
# Doesn't match the input, but we'll just check it's stored.
ip.history_manager.output_hist_reprs[3] = "spam"
ip.history_manager.store_output(3)
nt.assert_equal(ip.history_manager.input_hist_raw, [''] + hist)
# New session
ip.history_manager.reset()
newcmds = ["z=5","class X(object):\n pass", "k='p'"]
for i, cmd in enumerate(newcmds, start=1):
ip.history_manager.store_inputs(i, cmd)
gothist = ip.history_manager.get_range(start=1, stop=4)
nt.assert_equal(list(gothist), zip([0,0,0],[1,2,3], newcmds))
# Previous session:
gothist = ip.history_manager.get_range(-1, 1, 4)
nt.assert_equal(list(gothist), zip([1,1,1],[1,2,3], hist))
# Check get_hist_tail
gothist = ip.history_manager.get_tail(4, output=True,
include_latest=True)
expected = [(1, 3, (hist[-1], "spam")),
(2, 1, (newcmds[0], None)),
(2, 2, (newcmds[1], None)),
(2, 3, (newcmds[2], None)),]
nt.assert_equal(list(gothist), expected)
gothist = ip.history_manager.get_tail(2)
expected = [(2, 1, newcmds[0]),
(2, 2, newcmds[1])]
nt.assert_equal(list(gothist), expected)
# Check get_hist_search
gothist = ip.history_manager.search("*test*")
nt.assert_equal(list(gothist), [(1,2,hist[1])] )
gothist = ip.history_manager.search("b*", output=True)
nt.assert_equal(list(gothist), [(1,3,(hist[2],"spam"))] )
# Cross testing: check that magic %save can get previous session.
testfilename = os.path.realpath(os.path.join(tmpdir, "test.py"))
ip.magic_save(testfilename + " ~1/1-3")
testfile = open(testfilename, "r")
nt.assert_equal(testfile.read().decode("utf-8"),
"# coding: utf-8\n" + "\n".join(hist))
# Duplicate line numbers - check that it doesn't crash, and
# gets a new session
ip.history_manager.store_inputs(1, "rogue")
ip.history_manager.writeout_cache()
nt.assert_equal(ip.history_manager.session_number, 3)
finally:
# Restore history manager
ip.history_manager = hist_manager_ori
def test_extract_hist_ranges():
instr = "1 2/3 ~4/5-6 ~4/7-~4/9 ~9/2-~7/5"
expected = [(0, 1, 2), # 0 == current session
(2, 3, 4),
(-4, 5, 7),
(-4, 7, 10),
(-9, 2, None), # None == to end
(-8, 1, None),
(-7, 1, 6)]
actual = list(extract_hist_ranges(instr))
nt.assert_equal(actual, expected)
def test_magic_rerun():
"""Simple test for %rerun (no args -> rerun last line)"""
ip = get_ipython()
ip.run_cell("a = 10")
ip.run_cell("a += 1")
nt.assert_equal(ip.user_ns["a"], 11)
ip.run_cell("%rerun")
nt.assert_equal(ip.user_ns["a"], 12)
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