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"""Tests for two-process terminal frontend
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Currenlty only has the most simple test possible, starting a console and running
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a single command.
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Authors:
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* Min RK
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"""
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#-----------------------------------------------------------------------------
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# Imports
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#-----------------------------------------------------------------------------
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import time
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import nose.tools as nt
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from nose import SkipTest
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from IPython.testing import decorators as dec
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from IPython.testing import tools as tt
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from IPython.utils import py3compat
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from IPython.utils.process import find_cmd
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#-----------------------------------------------------------------------------
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# Test functions begin
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#-----------------------------------------------------------------------------
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@dec.skip_win32
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def test_console_starts():
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"""test that `ipython console` starts a terminal"""
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from IPython.external import pexpect
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# weird IOErrors prevent this from firing sometimes:
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ipython_cmd = None
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for i in range(5):
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try:
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ipython_cmd = find_cmd('ipython3' if py3compat.PY3 else 'ipython')
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except IOError:
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time.sleep(0.1)
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else:
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break
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if ipython_cmd is None:
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raise SkipTest("Could not determine ipython command")
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p = pexpect.spawn(ipython_cmd, args=['console', '--colors=NoColor'])
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idx = p.expect([r'In \[\d+\]', pexpect.EOF], timeout=4)
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nt.assert_equals(idx, 0, "expected in prompt")
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p.sendline('5')
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idx = p.expect([r'Out\[\d+\]: 5', pexpect.EOF], timeout=1)
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nt.assert_equals(idx, 0, "expected out prompt")
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idx = p.expect([r'In \[\d+\]', pexpect.EOF], timeout=1)
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nt.assert_equals(idx, 0, "expected second in prompt")
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# send ctrl-D;ctrl-D to exit
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p.sendeof()
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p.sendeof()
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p.expect([pexpect.EOF, pexpect.TIMEOUT], timeout=1)
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if p.isalive():
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p.terminate()
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