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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 os
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import sys
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import unittest
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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 IPython.utils.tempdir import TemporaryDirectory
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from IPython.core.history import HistoryManager, extract_hist_ranges
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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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#tmpdir = '/software/temp'
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histfile = os.path.realpath(os.path.join(tmpdir, 'history.sqlite'))
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# Ensure that we restore the history management that we mess with in
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# this test doesn't affect the IPython instance used by the test suite
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# beyond this test.
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hist_manager_ori = ip.history_manager
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try:
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ip.history_manager = HistoryManager(shell=ip)
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ip.history_manager.hist_file = histfile
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ip.history_manager.init_db() # Has to be called after changing file
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ip.history_manager.reset()
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print 'test',histfile
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hist = ['a=1', 'def f():\n test = 1\n return test', 'b=2']
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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[3].append("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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# Check lines were written to DB
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c = ip.history_manager.db.execute("SELECT source_raw FROM history")
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nt.assert_equal([x for x, in c], hist)
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# New session
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ip.history_manager.reset()
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newcmds = ["z=5","class X(object):\n pass", "k='p'"]
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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_history(start=1, stop=4)
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nt.assert_equal(list(gothist), zip([0,0,0],[1,2,3], newcmds))
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# Previous session:
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gothist = ip.history_manager.get_history(-1, 1, 4)
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nt.assert_equal(list(gothist), zip([1,1,1],[1,2,3], hist))
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# Check get_hist_tail
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gothist = ip.history_manager.get_hist_tail(4, output=True)
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expected = [(1, 3, (hist[-1], [repr("spam")])),
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(2, 1, (newcmds[0], None)),
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(2, 2, (newcmds[1], None)),
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(2, 3, (newcmds[2], None)),]
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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.get_hist_search("*test*")
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nt.assert_equal(list(gothist), [(1,2,hist[1])] )
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gothist = ip.history_manager.get_hist_search("b*", output=True)
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nt.assert_equal(list(gothist), [(1,3,(hist[2],[repr("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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testfile = open(testfilename, "r")
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nt.assert_equal(testfile.read(), "\n".join(hist))
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finally:
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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"
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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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actual = list(extract_hist_ranges(instr))
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nt.assert_equal(actual, expected)
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