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"""Test embedding of IPython"""
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#-----------------------------------------------------------------------------
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# Copyright (C) 2013 The IPython Development Team
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#
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# Distributed under the terms of the BSD License. The full license is in
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# the file COPYING, distributed as part of this software.
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#-----------------------------------------------------------------------------
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#-----------------------------------------------------------------------------
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# Imports
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#-----------------------------------------------------------------------------
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import os
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import sys
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from IPython.testing.decorators import skip_win32
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from IPython.testing import IPYTHON_TESTING_TIMEOUT_SCALE
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#-----------------------------------------------------------------------------
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# Tests
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#-----------------------------------------------------------------------------
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@skip_win32
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def test_debug_magic_passes_through_generators():
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"""
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This test that we can correctly pass through frames of a generator post-mortem.
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"""
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import pexpect
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import re
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in_prompt = re.compile(br'In ?\[\d+\]:')
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ipdb_prompt = 'ipdb>'
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env = os.environ.copy()
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child = pexpect.spawn(sys.executable, ['-m', 'IPython', '--colors=nocolor', '--simple-prompt'],
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env=env)
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child.timeout = 15 * IPYTHON_TESTING_TIMEOUT_SCALE
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child.expect(in_prompt)
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child.timeout = 2 * IPYTHON_TESTING_TIMEOUT_SCALE
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child.sendline("def f(x):")
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child.sendline(" raise Exception")
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child.sendline("")
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child.expect(in_prompt)
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child.sendline("gen = (f(x) for x in [0])")
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child.sendline("")
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child.expect(in_prompt)
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child.sendline("for x in gen:")
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child.sendline(" pass")
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child.sendline("")
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child.timeout = 10 * IPYTHON_TESTING_TIMEOUT_SCALE
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child.expect('Exception:')
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child.expect(in_prompt)
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child.sendline(r'%debug')
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child.expect('----> 2 raise Exception')
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child.expect(ipdb_prompt)
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child.sendline('u')
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child.expect_exact(r'----> 1 gen = (f(x) for x in [0])')
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child.expect(ipdb_prompt)
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child.sendline('u')
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child.expect_exact('----> 1 for x in gen:')
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child.expect(ipdb_prompt)
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child.sendline('u')
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child.expect_exact('*** Oldest frame')
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child.expect(ipdb_prompt)
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child.sendline('exit')
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child.expect(in_prompt)
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child.sendline('exit')
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child.close()
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