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# coding: utf-8
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"""Tests for the IPython tab-completion machinery.
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"""
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#-----------------------------------------------------------------------------
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# Module imports
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#-----------------------------------------------------------------------------
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# stdlib
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import io
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import os
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import sys
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import tempfile
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from datetime import datetime
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import sqlite3
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# third party
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import nose.tools as nt
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# our own packages
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from traitlets.config.loader import Config
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from IPython.utils.tempdir import TemporaryDirectory
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from IPython.core.history import HistoryManager, extract_hist_ranges
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from IPython.testing.decorators import skipif
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def test_proper_default_encoding():
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nt.assert_equal(sys.getdefaultencoding(), "utf-8")
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@skipif(sqlite3.sqlite_version_info > (3,24,0))
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def test_history():
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ip = get_ipython()
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with TemporaryDirectory() as tmpdir:
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hist_manager_ori = ip.history_manager
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hist_file = os.path.join(tmpdir, 'history.sqlite')
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try:
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ip.history_manager = HistoryManager(shell=ip, hist_file=hist_file)
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hist = [u'a=1', u'def f():\n test = 1\n return test', u"b='€Æ¾÷ß'"]
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for i, h in enumerate(hist, start=1):
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ip.history_manager.store_inputs(i, h)
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ip.history_manager.db_log_output = True
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# Doesn't match the input, but we'll just check it's stored.
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ip.history_manager.output_hist_reprs[3] = "spam"
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ip.history_manager.store_output(3)
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nt.assert_equal(ip.history_manager.input_hist_raw, [''] + hist)
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# Detailed tests for _get_range_session
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grs = ip.history_manager._get_range_session
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nt.assert_equal(list(grs(start=2,stop=-1)), list(zip([0], [2], hist[1:-1])))
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nt.assert_equal(list(grs(start=-2)), list(zip([0,0], [2,3], hist[-2:])))
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nt.assert_equal(list(grs(output=True)), list(zip([0,0,0], [1,2,3], zip(hist, [None,None,'spam']))))
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# Check whether specifying a range beyond the end of the current
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# session results in an error (gh-804)
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ip.magic('%hist 2-500')
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# Check that we can write non-ascii characters to a file
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ip.magic("%%hist -f %s" % os.path.join(tmpdir, "test1"))
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ip.magic("%%hist -pf %s" % os.path.join(tmpdir, "test2"))
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ip.magic("%%hist -nf %s" % os.path.join(tmpdir, "test3"))
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ip.magic("%%save %s 1-10" % os.path.join(tmpdir, "test4"))
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# New session
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ip.history_manager.reset()
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newcmds = [u"z=5",
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u"class X(object):\n pass",
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u"k='p'",
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u"z=5"]
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for i, cmd in enumerate(newcmds, start=1):
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ip.history_manager.store_inputs(i, cmd)
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gothist = ip.history_manager.get_range(start=1, stop=4)
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nt.assert_equal(list(gothist), list(zip([0,0,0],[1,2,3], newcmds)))
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# Previous session:
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gothist = ip.history_manager.get_range(-1, 1, 4)
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nt.assert_equal(list(gothist), list(zip([1,1,1],[1,2,3], hist)))
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newhist = [(2, i, c) for (i, c) in enumerate(newcmds, 1)]
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# Check get_hist_tail
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gothist = ip.history_manager.get_tail(5, output=True,
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include_latest=True)
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expected = [(1, 3, (hist[-1], "spam"))] \
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+ [(s, n, (c, None)) for (s, n, c) in newhist]
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nt.assert_equal(list(gothist), expected)
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gothist = ip.history_manager.get_tail(2)
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expected = newhist[-3:-1]
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nt.assert_equal(list(gothist), expected)
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# Check get_hist_search
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gothist = ip.history_manager.search("*test*")
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nt.assert_equal(list(gothist), [(1,2,hist[1])] )
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gothist = ip.history_manager.search("*=*")
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nt.assert_equal(list(gothist),
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[(1, 1, hist[0]),
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(1, 2, hist[1]),
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(1, 3, hist[2]),
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newhist[0],
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newhist[2],
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newhist[3]])
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gothist = ip.history_manager.search("*=*", n=4)
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nt.assert_equal(list(gothist),
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[(1, 3, hist[2]),
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newhist[0],
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newhist[2],
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newhist[3]])
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gothist = ip.history_manager.search("*=*", unique=True)
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nt.assert_equal(list(gothist),
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[(1, 1, hist[0]),
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(1, 2, hist[1]),
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(1, 3, hist[2]),
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newhist[2],
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newhist[3]])
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gothist = ip.history_manager.search("*=*", unique=True, n=3)
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nt.assert_equal(list(gothist),
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[(1, 3, hist[2]),
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newhist[2],
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newhist[3]])
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gothist = ip.history_manager.search("b*", output=True)
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nt.assert_equal(list(gothist), [(1,3,(hist[2],"spam"))] )
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# Cross testing: check that magic %save can get previous session.
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testfilename = os.path.realpath(os.path.join(tmpdir, "test.py"))
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ip.magic("save " + testfilename + " ~1/1-3")
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with io.open(testfilename, encoding='utf-8') as testfile:
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nt.assert_equal(testfile.read(),
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u"# coding: utf-8\n" + u"\n".join(hist)+u"\n")
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# Duplicate line numbers - check that it doesn't crash, and
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# gets a new session
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ip.history_manager.store_inputs(1, "rogue")
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ip.history_manager.writeout_cache()
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nt.assert_equal(ip.history_manager.session_number, 3)
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finally:
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# Ensure saving thread is shut down before we try to clean up the files
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ip.history_manager.save_thread.stop()
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# Forcibly close database rather than relying on garbage collection
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ip.history_manager.db.close()
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# Restore history manager
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ip.history_manager = hist_manager_ori
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def test_extract_hist_ranges():
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instr = "1 2/3 ~4/5-6 ~4/7-~4/9 ~9/2-~7/5 ~10/"
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expected = [(0, 1, 2), # 0 == current session
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(2, 3, 4),
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(-4, 5, 7),
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(-4, 7, 10),
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(-9, 2, None), # None == to end
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(-8, 1, None),
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(-7, 1, 6),
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(-10, 1, None)]
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actual = list(extract_hist_ranges(instr))
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nt.assert_equal(actual, expected)
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def test_magic_rerun():
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"""Simple test for %rerun (no args -> rerun last line)"""
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ip = get_ipython()
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ip.run_cell("a = 10", store_history=True)
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ip.run_cell("a += 1", store_history=True)
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nt.assert_equal(ip.user_ns["a"], 11)
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ip.run_cell("%rerun", store_history=True)
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nt.assert_equal(ip.user_ns["a"], 12)
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def test_timestamp_type():
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ip = get_ipython()
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info = ip.history_manager.get_session_info()
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nt.assert_true(isinstance(info[1], datetime))
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def test_hist_file_config():
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cfg = Config()
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tfile = tempfile.NamedTemporaryFile(delete=False)
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cfg.HistoryManager.hist_file = tfile.name
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try:
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hm = HistoryManager(shell=get_ipython(), config=cfg)
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nt.assert_equal(hm.hist_file, cfg.HistoryManager.hist_file)
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finally:
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try:
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os.remove(tfile.name)
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except OSError:
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# same catch as in testing.tools.TempFileMixin
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# On Windows, even though we close the file, we still can't
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# delete it. I have no clue why
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pass
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def test_histmanager_disabled():
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"""Ensure that disabling the history manager doesn't create a database."""
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cfg = Config()
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cfg.HistoryAccessor.enabled = False
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ip = get_ipython()
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with TemporaryDirectory() as tmpdir:
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hist_manager_ori = ip.history_manager
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hist_file = os.path.join(tmpdir, 'history.sqlite')
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cfg.HistoryManager.hist_file = hist_file
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try:
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ip.history_manager = HistoryManager(shell=ip, config=cfg)
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hist = [u'a=1', u'def f():\n test = 1\n return test', u"b='€Æ¾÷ß'"]
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for i, h in enumerate(hist, start=1):
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ip.history_manager.store_inputs(i, h)
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nt.assert_equal(ip.history_manager.input_hist_raw, [''] + hist)
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ip.history_manager.reset()
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ip.history_manager.end_session()
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finally:
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ip.history_manager = hist_manager_ori
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# hist_file should not be created
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nt.assert_false(os.path.exists(hist_file))
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