Fix cell magic transformation

IPython/core/tests/test_inputtransformer2_line.py

@@ -0,0 +1,21 b''
+"""Tests for the line-based transformers in IPython.core.inputtransformer2
+
+Line-based transformers are the simpler ones; token-based transformers are
+more complex.
+"""
+import nose.tools as nt
+
+from IPython.core import inputtransformer2 as ipt2
+
+SIMPLE = ("""\
+%%foo arg
+body 1
+body 2
+""", """\
+get_ipython().run_cell_magic('foo', 'arg', 'body 1\\nbody 2\\n')
+""")
+
+def test_cell_magic():
+    for sample, expected in [SIMPLE]:
+        nt.assert_equal(ipt2.cell_magic(sample.splitlines(keepends=True)),
+                        expected.splitlines(keepends=True))

IPython/core/inputtransformer2.py

@@ -1,434 +1,434 b''
 import re
 from typing import List, Tuple
 from IPython.utils import tokenize2
 from IPython.utils.tokenutil import generate_tokens
 
 def leading_indent(lines):
     """Remove leading indentation.
     
     If the first line starts with a spaces or tabs, the same whitespace will be
     removed from each following line.
     """
     m = re.match(r'^[ \t]+', lines[0])
     if not m:
         return lines
     space = m.group(0)
     n = len(space)
     return [l[n:] if l.startswith(space) else l
             for l in lines]
 
 class PromptStripper:
     """Remove matching input prompts from a block of input.
     
     Parameters
     ----------
     prompt_re : regular expression
         A regular expression matching any input prompt (including continuation)
     initial_re : regular expression, optional
         A regular expression matching only the initial prompt, but not continuation.
         If no initial expression is given, prompt_re will be used everywhere.
         Used mainly for plain Python prompts, where the continuation prompt
         ``...`` is a valid Python expression in Python 3, so shouldn't be stripped.
     
     If initial_re and prompt_re differ,
     only initial_re will be tested against the first line.
     If any prompt is found on the first two lines,
     prompts will be stripped from the rest of the block.
     """
     def __init__(self, prompt_re, initial_re=None):
         self.prompt_re = prompt_re
         self.initial_re = initial_re or prompt_re
 
     def _strip(self, lines):
         return [self.prompt_re.sub('', l, count=1) for l in lines]
 
     def __call__(self, lines):
         if self.initial_re.match(lines[0]) or \
                 (len(lines) > 1 and self.prompt_re.match(lines[1])):
             return self._strip(lines)
         return lines
 
 classic_prompt = PromptStripper(
     prompt_re=re.compile(r'^(>>>|\.\.\.)( |$)'),
     initial_re=re.compile(r'^>>>( |$)')
 )
 
 ipython_prompt = PromptStripper(re.compile(r'^(In \[\d+\]: |\s*\.{3,}: ?)'))
 
 def cell_magic(lines):
     if not lines[0].startswith('%%'):
         return lines
     if re.match('%%\w+\?', lines[0]):
         # This case will be handled by help_end
         return lines
-    magic_name, first_line = lines[0][2:].partition(' ')
-    body = '\n'.join(lines[1:])
-    return ['get_ipython().run_cell_magic(%r, %r, %r)' % (magic_name, first_line, body)]
+    magic_name, _, first_line = lines[0][2:-1].partition(' ')
+    body = ''.join(lines[1:])
+    return ['get_ipython().run_cell_magic(%r, %r, %r)\n'
+            % (magic_name, first_line, body)]
 
 line_transforms = [
     leading_indent,
     classic_prompt,
     ipython_prompt,
     cell_magic,
 ]
 
 # -----
 
 def _find_assign_op(token_line):
     # Find the first assignment in the line ('=' not inside brackets)
     # We don't try to support multiple special assignment (a = b = %foo)
     paren_level = 0
     for i, ti in enumerate(token_line):
         s = ti.string
         if s == '=' and paren_level == 0:
             return i 
         if s in '([{':
             paren_level += 1
         elif s in ')]}':
             paren_level -= 1
 
 def find_end_of_continued_line(lines, start_line: int):
     """Find the last line of a line explicitly extended using backslashes.
 
     Uses 0-indexed line numbers.
     """
     end_line = start_line
     while lines[end_line].endswith('\\\n'):
         end_line += 1
         if end_line >= len(lines):
             break
     return end_line
 
 def assemble_continued_line(lines, start: Tuple[int, int], end_line: int):
     """Assemble pieces of a continued line into a single line.
 
     Uses 0-indexed line numbers. *start* is (lineno, colno).
     """
     parts = [lines[start[0]][start[1]:]] + lines[start[0]+1:end_line+1]
     return ' '.join([p[:-2] for p in parts[:-1]]  # Strip backslash+newline
                     + [parts[-1][:-1]])         # Strip newline from last line
 
 class TokenTransformBase:
     # Lower numbers -> higher priority (for matches in the same location)
     priority = 10
 
     def sortby(self):
         return self.start_line, self.start_col, self.priority
 
     def __init__(self, start):
         self.start_line = start[0] - 1   # Shift from 1-index to 0-index
         self.start_col = start[1]
 
     def transform(self, lines: List[str]):
         raise NotImplementedError
 
 class MagicAssign(TokenTransformBase):
     @classmethod
     def find(cls, tokens_by_line):
         """Find the first magic assignment (a = %foo) in the cell.
         
         Returns (line, column) of the % if found, or None. *line* is 1-indexed.
         """
         for line in tokens_by_line:
             assign_ix = _find_assign_op(line)
             if (assign_ix is not None) \
                     and (len(line) >= assign_ix + 2) \
                     and (line[assign_ix+1].string == '%') \
                     and (line[assign_ix+2].type == tokenize2.NAME):
                 return cls(line[assign_ix+1].start)
     
     def transform(self, lines: List[str]):
         """Transform a magic assignment found by find
         """
         start_line, start_col = self.start_line, self.start_col
         lhs = lines[start_line][:start_col]
         end_line = find_end_of_continued_line(lines, start_line)
         rhs = assemble_continued_line(lines, (start_line, start_col), end_line)
         assert rhs.startswith('%'), rhs
         magic_name, _, args = rhs[1:].partition(' ')
         
         lines_before = lines[:start_line]
         call = "get_ipython().run_line_magic({!r}, {!r})".format(magic_name, args)
         new_line = lhs + call + '\n'
         lines_after = lines[end_line+1:]
         
         return lines_before + [new_line] + lines_after
 
 
 class SystemAssign(TokenTransformBase):
     @classmethod
     def find(cls, tokens_by_line):
         """Find the first system assignment (a = !foo) in the cell.
 
         Returns (line, column) of the ! if found, or None. *line* is 1-indexed.
         """
         for line in tokens_by_line:
             assign_ix = _find_assign_op(line)
             if (assign_ix is not None) \
                     and (len(line) >= assign_ix + 2) \
                     and (line[assign_ix + 1].type == tokenize2.ERRORTOKEN):
                 ix = assign_ix + 1
 
                 while ix < len(line) and line[ix].type == tokenize2.ERRORTOKEN:
                     if line[ix].string == '!':
                         return cls(line[ix].start)
                     elif not line[ix].string.isspace():
                         break
                     ix += 1
 
     def transform(self, lines: List[str]):
         """Transform a system assignment found by find
         """
         start_line, start_col = self.start_line, self.start_col
 
         lhs = lines[start_line][:start_col]
         end_line = find_end_of_continued_line(lines, start_line)
         rhs = assemble_continued_line(lines, (start_line, start_col), end_line)
         assert rhs.startswith('!'), rhs
         cmd = rhs[1:]
 
         lines_before = lines[:start_line]
         call = "get_ipython().getoutput({!r})".format(cmd)
         new_line = lhs + call + '\n'
         lines_after = lines[end_line + 1:]
 
         return lines_before + [new_line] + lines_after
 
 # The escape sequences that define the syntax transformations IPython will
 # apply to user input.  These can NOT be just changed here: many regular
 # expressions and other parts of the code may use their hardcoded values, and
 # for all intents and purposes they constitute the 'IPython syntax', so they
 # should be considered fixed.
 
 ESC_SHELL  = '!'     # Send line to underlying system shell
 ESC_SH_CAP = '!!'    # Send line to system shell and capture output
 ESC_HELP   = '?'     # Find information about object
 ESC_HELP2  = '??'    # Find extra-detailed information about object
 ESC_MAGIC  = '%'     # Call magic function
 ESC_MAGIC2 = '%%'    # Call cell-magic function
 ESC_QUOTE  = ','     # Split args on whitespace, quote each as string and call
 ESC_QUOTE2 = ';'     # Quote all args as a single string, call
 ESC_PAREN  = '/'     # Call first argument with rest of line as arguments
 
 ESCAPE_SINGLES = {'!', '?', '%', ',', ';', '/'}
 ESCAPE_DOUBLES = {'!!', '??'}  # %% (cell magic) is handled separately
 
 def _make_help_call(target, esc, next_input=None):
     """Prepares a pinfo(2)/psearch call from a target name and the escape
     (i.e. ? or ??)"""
     method  = 'pinfo2' if esc == '??' \
                 else 'psearch' if '*' in target \
                 else 'pinfo'
     arg = " ".join([method, target])
     #Prepare arguments for get_ipython().run_line_magic(magic_name, magic_args)
     t_magic_name, _, t_magic_arg_s = arg.partition(' ')
     t_magic_name = t_magic_name.lstrip(ESC_MAGIC)
     if next_input is None:
         return 'get_ipython().run_line_magic(%r, %r)' % (t_magic_name, t_magic_arg_s)
     else:
         return 'get_ipython().set_next_input(%r);get_ipython().run_line_magic(%r, %r)' % \
            (next_input, t_magic_name, t_magic_arg_s)
 
 def _tr_help(content):
     "Translate lines escaped with: ?"
     # A naked help line should just fire the intro help screen
     if not content:
         return 'get_ipython().show_usage()'
 
     return _make_help_call(content, '?')
 
 def _tr_help2(content):
     "Translate lines escaped with: ??"
     # A naked help line should just fire the intro help screen
     if not content:
         return 'get_ipython().show_usage()'
 
     return _make_help_call(content, '??')
 
 def _tr_magic(content):
     "Translate lines escaped with: %"
     name, _, args = content.partition(' ')
     return 'get_ipython().run_line_magic(%r, %r)' % (name, args)
 
 def _tr_quote(content):
     "Translate lines escaped with: ,"
     name, _, args = content.partition(' ')
     return '%s("%s")' % (name, '", "'.join(args.split()) )
 
 def _tr_quote2(content):
     "Translate lines escaped with: ;"
     name, _, args = content.partition(' ')
     return '%s("%s")' % (name, args)
 
 def _tr_paren(content):
     "Translate lines escaped with: /"
     name, _, args = content.partition(' ')
     return '%s(%s)' % (name, ", ".join(args.split()))
 
 tr = { ESC_SHELL  : 'get_ipython().system({!r})'.format,
        ESC_SH_CAP : 'get_ipython().getoutput({!r})'.format,
        ESC_HELP   : _tr_help,
        ESC_HELP2  : _tr_help2,
        ESC_MAGIC  : _tr_magic,
        ESC_QUOTE  : _tr_quote,
        ESC_QUOTE2 : _tr_quote2,
        ESC_PAREN  : _tr_paren }
 
 class EscapedCommand(TokenTransformBase):
     @classmethod
     def find(cls, tokens_by_line):
         """Find the first escaped command (%foo, !foo, etc.) in the cell.
 
         Returns (line, column) of the escape if found, or None. *line* is 1-indexed.
         """
         for line in tokens_by_line:
             ix = 0
             while line[ix].type in {tokenize2.INDENT, tokenize2.DEDENT}:
                 ix += 1
             if line[ix].string in ESCAPE_SINGLES:
                 return cls(line[ix].start)
 
     def transform(self, lines):
         start_line, start_col = self.start_line, self.start_col
 
         indent = lines[start_line][:start_col]
         end_line = find_end_of_continued_line(lines, start_line)
         line = assemble_continued_line(lines, (start_line, start_col), end_line)
 
         if line[:2] in ESCAPE_DOUBLES:
             escape, content = line[:2], line[2:]
         else:
             escape, content = line[:1], line[1:]
         call = tr[escape](content)
 
         lines_before = lines[:start_line]
         new_line = indent + call + '\n'
         lines_after = lines[end_line + 1:]
 
         return lines_before + [new_line] + lines_after
 
 _help_end_re = re.compile(r"""(%{0,2}
                               [a-zA-Z_*][\w*]*        # Variable name
                               (\.[a-zA-Z_*][\w*]*)*   # .etc.etc
                               )
                               (\?\??)$                # ? or ??
                               """,
                               re.VERBOSE)
 
 class HelpEnd(TokenTransformBase):
     # This needs to be higher priority (lower number) than EscapedCommand so
     # that inspecting magics (%foo?) works.
     priority = 5
 
     def __init__(self, start, q_locn):
         super().__init__(start)
         self.q_line = q_locn[0] - 1  # Shift from 1-indexed to 0-indexed
         self.q_col = q_locn[1]
 
     @classmethod
     def find(cls, tokens_by_line):
         for line in tokens_by_line:
             # Last token is NEWLINE; look at last but one
             if len(line) > 2 and line[-2].string == '?':
                 # Find the first token that's not INDENT/DEDENT
                 ix = 0
                 while line[ix].type in {tokenize2.INDENT, tokenize2.DEDENT}:
                     ix += 1
                 return cls(line[ix].start, line[-2].start)
 
     def transform(self, lines):
         piece = ''.join(lines[self.start_line:self.q_line+1])
         indent, content = piece[:self.start_col], piece[self.start_col:]
         lines_before = lines[:self.start_line]
         lines_after = lines[self.q_line + 1:]
 
         m = _help_end_re.search(content)
         assert m is not None, content
         target = m.group(1)
         esc = m.group(3)
 
         # If we're mid-command, put it back on the next prompt for the user.
         next_input = None
         if (not lines_before) and (not lines_after) \
                 and content.strip() != m.group(0):
             next_input = content.rstrip('?\n')
 
         call = _make_help_call(target, esc, next_input=next_input)
         new_line = indent + call + '\n'
 
         return lines_before + [new_line] + lines_after
 
 def make_tokens_by_line(lines):
     tokens_by_line = [[]]
     for token in generate_tokens(iter(lines).__next__):
         tokens_by_line[-1].append(token)
         if token.type == tokenize2.NEWLINE:
             tokens_by_line.append([])
     
     return tokens_by_line
 
 def show_linewise_tokens(s: str):
     """For investigation"""
     if not s.endswith('\n'):
         s += '\n'
     lines = s.splitlines(keepends=True)
     for line in make_tokens_by_line(lines):
         print("Line -------")
         for tokinfo in line:
             print(" ", tokinfo)
 
 class TokenTransformers:
     def __init__(self):
         self.transformers = [
             MagicAssign,
             SystemAssign,
             EscapedCommand,
             HelpEnd,
         ]
     
     def do_one_transform(self, lines):
         """Find and run the transform earliest in the code.
         
         Returns (changed, lines).
         
         This method is called repeatedly until changed is False, indicating
         that all available transformations are complete.
 
         The tokens following IPython special syntax might not be valid, so
         the transformed code is retokenised every time to identify the next
         piece of special syntax. Hopefully long code cells are mostly valid
         Python, not using lots of IPython special syntax, so this shouldn't be
         a performance issue. 
         """
         tokens_by_line = make_tokens_by_line(lines)
         candidates = []
         for transformer_cls in self.transformers:
             transformer = transformer_cls.find(tokens_by_line)
             if transformer:
                 candidates.append(transformer)
 
         if not candidates:
             # Nothing to transform
             return False, lines
 
         transformer = min(candidates, key=TokenTransformBase.sortby)
         return True, transformer.transform(lines)
 
     def __call__(self, lines):
         while True:
             changed, lines = self.do_one_transform(lines)
             if not changed:
                 return lines
 
 
 def transform_cell(cell):
     if not cell.endswith('\n'):
         cell += '\n'  # Ensure every line has a newline
     lines = cell.splitlines(keepends=True)
     for transform in line_transforms:
         #print(transform, lines)
         lines = transform(lines)
     
     lines = TokenTransformers()(lines)
-    for line in lines:
-        print('~~', line)
+    return ''.join(lines)

IPython/core/tests/test_magic.py

@@ -1,1073 +1,1073 b''
 # -*- coding: utf-8 -*-
 """Tests for various magic functions.
 
 Needs to be run by nose (to make ipython session available).
 """
 
 import io
 import os
 import re
 import sys
 import warnings
 from unittest import TestCase
 from importlib import invalidate_caches
 from io import StringIO
 
 import nose.tools as nt
 
 import shlex
 
 from IPython import get_ipython
 from IPython.core import magic
 from IPython.core.error import UsageError
 from IPython.core.magic import (Magics, magics_class, line_magic,
                                 cell_magic,
                                 register_line_magic, register_cell_magic)
 from IPython.core.magics import execution, script, code, logging
 from IPython.testing import decorators as dec
 from IPython.testing import tools as tt
 from IPython.utils import py3compat
 from IPython.utils.io import capture_output
 from IPython.utils.tempdir import TemporaryDirectory
 from IPython.utils.process import find_cmd
 
 
 
 _ip = get_ipython()
 
 @magic.magics_class
 class DummyMagics(magic.Magics): pass
 
 def test_extract_code_ranges():
     instr = "1 3 5-6 7-9 10:15 17: :10 10- -13 :"
     expected = [(0, 1), 
                 (2, 3),
                 (4, 6),
                 (6, 9),
                 (9, 14),
                 (16, None),
                 (None, 9),
                 (9, None),
                 (None, 13),
                 (None, None)]
     actual = list(code.extract_code_ranges(instr))
     nt.assert_equal(actual, expected)
 
 def test_extract_symbols():
     source = """import foo\na = 10\ndef b():\n    return 42\n\n\nclass A: pass\n\n\n"""
     symbols_args = ["a", "b", "A", "A,b", "A,a", "z"]
     expected = [([], ['a']),
                 (["def b():\n    return 42\n"], []),
                 (["class A: pass\n"], []),
                 (["class A: pass\n", "def b():\n    return 42\n"], []),
                 (["class A: pass\n"], ['a']),
                 ([], ['z'])]
     for symbols, exp in zip(symbols_args, expected):
         nt.assert_equal(code.extract_symbols(source, symbols), exp)
 
 
 def test_extract_symbols_raises_exception_with_non_python_code():
     source = ("=begin A Ruby program :)=end\n"
               "def hello\n"
               "puts 'Hello world'\n"
               "end")
     with nt.assert_raises(SyntaxError):
         code.extract_symbols(source, "hello")
 
 
 def test_magic_not_found():
     # magic not found raises UsageError
     with nt.assert_raises(UsageError):
         _ip.magic('doesntexist')
 
     # ensure result isn't success when a magic isn't found
     result = _ip.run_cell('%doesntexist')
     assert isinstance(result.error_in_exec, UsageError)
 
 
 def test_cell_magic_not_found():
     # magic not found raises UsageError
     with nt.assert_raises(UsageError):
         _ip.run_cell_magic('doesntexist', 'line', 'cell')
 
     # ensure result isn't success when a magic isn't found
     result = _ip.run_cell('%%doesntexist')
     assert isinstance(result.error_in_exec, UsageError)
 
 
 def test_magic_error_status():
     def fail(shell):
         1/0
     _ip.register_magic_function(fail)
     result = _ip.run_cell('%fail')
     assert isinstance(result.error_in_exec, ZeroDivisionError)
 
 
 def test_config():
     """ test that config magic does not raise
     can happen if Configurable init is moved too early into
     Magics.__init__ as then a Config object will be registered as a
     magic.
     """
     ## should not raise.
     _ip.magic('config')
 
 def test_config_available_configs():
     """ test that config magic prints available configs in unique and
     sorted order. """
     with capture_output() as captured:
         _ip.magic('config')
 
     stdout = captured.stdout
     config_classes = stdout.strip().split('\n')[1:]
     nt.assert_list_equal(config_classes, sorted(set(config_classes)))
 
 def test_config_print_class():
     """ test that config with a classname prints the class's options. """
     with capture_output() as captured:
         _ip.magic('config TerminalInteractiveShell')
 
     stdout = captured.stdout
     if not re.match("TerminalInteractiveShell.* options", stdout.splitlines()[0]):
         print(stdout)
         raise AssertionError("1st line of stdout not like "
                              "'TerminalInteractiveShell.* options'")
 
 def test_rehashx():
     # clear up everything
     _ip.alias_manager.clear_aliases()
     del _ip.db['syscmdlist']
     
     _ip.magic('rehashx')
     # Practically ALL ipython development systems will have more than 10 aliases
 
     nt.assert_true(len(_ip.alias_manager.aliases) > 10)
     for name, cmd in _ip.alias_manager.aliases:
         # we must strip dots from alias names
         nt.assert_not_in('.', name)
 
     # rehashx must fill up syscmdlist
     scoms = _ip.db['syscmdlist']
     nt.assert_true(len(scoms) > 10)
 
 
 def test_magic_parse_options():
     """Test that we don't mangle paths when parsing magic options."""
     ip = get_ipython()
     path = 'c:\\x'
     m = DummyMagics(ip)
     opts = m.parse_options('-f %s' % path,'f:')[0]
     # argv splitting is os-dependent
     if os.name == 'posix':
         expected = 'c:x'
     else:
         expected = path
     nt.assert_equal(opts['f'], expected)
 
 def test_magic_parse_long_options():
     """Magic.parse_options can handle --foo=bar long options"""
     ip = get_ipython()
     m = DummyMagics(ip)
     opts, _ = m.parse_options('--foo --bar=bubble', 'a', 'foo', 'bar=')
     nt.assert_in('foo', opts)
     nt.assert_in('bar', opts)
     nt.assert_equal(opts['bar'], "bubble")
 
 
 @dec.skip_without('sqlite3')
 def doctest_hist_f():
     """Test %hist -f with temporary filename.
 
     In [9]: import tempfile
 
     In [10]: tfile = tempfile.mktemp('.py','tmp-ipython-')
 
     In [11]: %hist -nl -f $tfile 3
 
     In [13]: import os; os.unlink(tfile)
     """
 
 
 @dec.skip_without('sqlite3')
 def doctest_hist_r():
     """Test %hist -r
 
     XXX - This test is not recording the output correctly.  For some reason, in
     testing mode the raw history isn't getting populated.  No idea why.
     Disabling the output checking for now, though at least we do run it.
 
     In [1]: 'hist' in _ip.lsmagic()
     Out[1]: True
 
     In [2]: x=1
 
     In [3]: %hist -rl 2
     x=1 # random
     %hist -r 2
     """
 
 
 @dec.skip_without('sqlite3')
 def doctest_hist_op():
     """Test %hist -op
 
     In [1]: class b(float):
        ...:     pass
        ...: 
 
     In [2]: class s(object):
        ...:     def __str__(self):
        ...:         return 's'
        ...: 
 
     In [3]: 
 
     In [4]: class r(b):
        ...:     def __repr__(self):
        ...:         return 'r'
        ...: 
 
     In [5]: class sr(s,r): pass
        ...: 
 
     In [6]: 
 
     In [7]: bb=b()
 
     In [8]: ss=s()
 
     In [9]: rr=r()
 
     In [10]: ssrr=sr()
 
     In [11]: 4.5
     Out[11]: 4.5
 
     In [12]: str(ss)
     Out[12]: 's'
 
     In [13]: 
 
     In [14]: %hist -op
     >>> class b:
     ...     pass
     ... 
     >>> class s(b):
     ...     def __str__(self):
     ...         return 's'
     ... 
     >>> 
     >>> class r(b):
     ...     def __repr__(self):
     ...         return 'r'
     ... 
     >>> class sr(s,r): pass
     >>> 
     >>> bb=b()
     >>> ss=s()
     >>> rr=r()
     >>> ssrr=sr()
     >>> 4.5
     4.5
     >>> str(ss)
     's'
     >>> 
     """
 
 def test_hist_pof():
     ip = get_ipython()
     ip.run_cell(u"1+2", store_history=True)
     #raise Exception(ip.history_manager.session_number)
     #raise Exception(list(ip.history_manager._get_range_session()))
     with TemporaryDirectory() as td:
         tf = os.path.join(td, 'hist.py')
         ip.run_line_magic('history', '-pof %s' % tf)
         assert os.path.isfile(tf)
 
 
 @dec.skip_without('sqlite3')
 def test_macro():
     ip = get_ipython()
     ip.history_manager.reset()   # Clear any existing history.
     cmds = ["a=1", "def b():\n  return a**2", "print(a,b())"]
     for i, cmd in enumerate(cmds, start=1):
         ip.history_manager.store_inputs(i, cmd)
     ip.magic("macro test 1-3")
     nt.assert_equal(ip.user_ns["test"].value, "\n".join(cmds)+"\n")
     
     # List macros
     nt.assert_in("test", ip.magic("macro"))
 
 
 @dec.skip_without('sqlite3')
 def test_macro_run():
     """Test that we can run a multi-line macro successfully."""
     ip = get_ipython()
     ip.history_manager.reset()
     cmds = ["a=10", "a+=1", py3compat.doctest_refactor_print("print a"),
                                                             "%macro test 2-3"]
     for cmd in cmds:
         ip.run_cell(cmd, store_history=True)
     nt.assert_equal(ip.user_ns["test"].value,
                             py3compat.doctest_refactor_print("a+=1\nprint a\n"))
     with tt.AssertPrints("12"):
         ip.run_cell("test")
     with tt.AssertPrints("13"):
         ip.run_cell("test")
 
 
 def test_magic_magic():
     """Test %magic"""
     ip = get_ipython()
     with capture_output() as captured:
         ip.magic("magic")
     
     stdout = captured.stdout
     nt.assert_in('%magic', stdout)
     nt.assert_in('IPython', stdout)
     nt.assert_in('Available', stdout)
 
 
 @dec.skipif_not_numpy
 def test_numpy_reset_array_undec():
     "Test '%reset array' functionality"
     _ip.ex('import numpy as np')
     _ip.ex('a = np.empty(2)')
     nt.assert_in('a', _ip.user_ns)
     _ip.magic('reset -f array')
     nt.assert_not_in('a', _ip.user_ns)
 
 def test_reset_out():
     "Test '%reset out' magic"
     _ip.run_cell("parrot = 'dead'", store_history=True)
     # test '%reset -f out', make an Out prompt
     _ip.run_cell("parrot", store_history=True)
     nt.assert_true('dead' in [_ip.user_ns[x] for x in ('_','__','___')])
     _ip.magic('reset -f out')
     nt.assert_false('dead' in [_ip.user_ns[x] for x in ('_','__','___')])
     nt.assert_equal(len(_ip.user_ns['Out']), 0)
 
 def test_reset_in():
     "Test '%reset in' magic"
     # test '%reset -f in'
     _ip.run_cell("parrot", store_history=True)
     nt.assert_true('parrot' in [_ip.user_ns[x] for x in ('_i','_ii','_iii')])
     _ip.magic('%reset -f in')
     nt.assert_false('parrot' in [_ip.user_ns[x] for x in ('_i','_ii','_iii')])
     nt.assert_equal(len(set(_ip.user_ns['In'])), 1)
 
 def test_reset_dhist():
     "Test '%reset dhist' magic"
     _ip.run_cell("tmp = [d for d in _dh]") # copy before clearing
     _ip.magic('cd ' + os.path.dirname(nt.__file__))
     _ip.magic('cd -')
     nt.assert_true(len(_ip.user_ns['_dh']) > 0)
     _ip.magic('reset -f dhist')
     nt.assert_equal(len(_ip.user_ns['_dh']), 0)
     _ip.run_cell("_dh = [d for d in tmp]") #restore
 
 def test_reset_in_length():
     "Test that '%reset in' preserves In[] length"
     _ip.run_cell("print 'foo'")
     _ip.run_cell("reset -f in")
     nt.assert_equal(len(_ip.user_ns['In']), _ip.displayhook.prompt_count+1)
 
 def test_tb_syntaxerror():
     """test %tb after a SyntaxError"""
     ip = get_ipython()
     ip.run_cell("for")
     
     # trap and validate stdout
     save_stdout = sys.stdout
     try:
         sys.stdout = StringIO()
         ip.run_cell("%tb")
         out = sys.stdout.getvalue()
     finally:
         sys.stdout = save_stdout
     # trim output, and only check the last line
     last_line = out.rstrip().splitlines()[-1].strip()
     nt.assert_equal(last_line, "SyntaxError: invalid syntax")
 
 
 def test_time():
     ip = get_ipython()
     
     with tt.AssertPrints("Wall time: "):
         ip.run_cell("%time None")
     
     ip.run_cell("def f(kmjy):\n"
                 "    %time print (2*kmjy)")
     
     with tt.AssertPrints("Wall time: "):
         with tt.AssertPrints("hihi", suppress=False):
             ip.run_cell("f('hi')")
 
 
 @dec.skip_win32
 def test_time2():
     ip = get_ipython()
     
     with tt.AssertPrints("CPU times: user "):
         ip.run_cell("%time None")
 
 def test_time3():
     """Erroneous magic function calls, issue gh-3334"""
     ip = get_ipython()
     ip.user_ns.pop('run', None)
     
     with tt.AssertNotPrints("not found", channel='stderr'):
         ip.run_cell("%%time\n"
                     "run = 0\n"
                     "run += 1")
 
 def test_doctest_mode():
     "Toggle doctest_mode twice, it should be a no-op and run without error"
     _ip.magic('doctest_mode')
     _ip.magic('doctest_mode')
 
 
 def test_parse_options():
     """Tests for basic options parsing in magics."""
     # These are only the most minimal of tests, more should be added later.  At
     # the very least we check that basic text/unicode calls work OK.
     m = DummyMagics(_ip)
     nt.assert_equal(m.parse_options('foo', '')[1], 'foo')
     nt.assert_equal(m.parse_options(u'foo', '')[1], u'foo')
 
     
 def test_dirops():
     """Test various directory handling operations."""
     # curpath = lambda :os.path.splitdrive(os.getcwd())[1].replace('\\','/')
     curpath = os.getcwd
     startdir = os.getcwd()
     ipdir = os.path.realpath(_ip.ipython_dir)
     try:
         _ip.magic('cd "%s"' % ipdir)
         nt.assert_equal(curpath(), ipdir)
         _ip.magic('cd -')
         nt.assert_equal(curpath(), startdir)
         _ip.magic('pushd "%s"' % ipdir)
         nt.assert_equal(curpath(), ipdir)
         _ip.magic('popd')
         nt.assert_equal(curpath(), startdir)
     finally:
         os.chdir(startdir)
 
 
 def test_xmode():
     # Calling xmode three times should be a no-op
     xmode = _ip.InteractiveTB.mode
     for i in range(3):
         _ip.magic("xmode")
     nt.assert_equal(_ip.InteractiveTB.mode, xmode)
     
 def test_reset_hard():
     monitor = []
     class A(object):
         def __del__(self):
             monitor.append(1)
         def __repr__(self):
             return "<A instance>"
             
     _ip.user_ns["a"] = A()
     _ip.run_cell("a")
     
     nt.assert_equal(monitor, [])
     _ip.magic("reset -f")
     nt.assert_equal(monitor, [1])
     
 class TestXdel(tt.TempFileMixin):
     def test_xdel(self):
         """Test that references from %run are cleared by xdel."""
         src = ("class A(object):\n"
                "    monitor = []\n"
                "    def __del__(self):\n"
                "        self.monitor.append(1)\n"
                "a = A()\n")
         self.mktmp(src)
         # %run creates some hidden references...
         _ip.magic("run %s" % self.fname)
         # ... as does the displayhook.
         _ip.run_cell("a")
         
         monitor = _ip.user_ns["A"].monitor
         nt.assert_equal(monitor, [])
         
         _ip.magic("xdel a")
         
         # Check that a's __del__ method has been called.
         nt.assert_equal(monitor, [1])
 
 def doctest_who():
     """doctest for %who
     
     In [1]: %reset -f
     
     In [2]: alpha = 123
     
     In [3]: beta = 'beta'
     
     In [4]: %who int
     alpha
     
     In [5]: %who str
     beta
     
     In [6]: %whos
     Variable   Type    Data/Info
     ----------------------------
     alpha      int     123
     beta       str     beta
     
     In [7]: %who_ls
     Out[7]: ['alpha', 'beta']
     """
 
 def test_whos():
     """Check that whos is protected against objects where repr() fails."""
     class A(object):
         def __repr__(self):
             raise Exception()
     _ip.user_ns['a'] = A()
     _ip.magic("whos")
 
 @py3compat.u_format
 def doctest_precision():
     """doctest for %precision
     
     In [1]: f = get_ipython().display_formatter.formatters['text/plain']
     
     In [2]: %precision 5
     Out[2]: '%.5f'
     
     In [3]: f.float_format
     Out[3]: '%.5f'
     
     In [4]: %precision %e
     Out[4]: '%e'
     
     In [5]: f(3.1415927)
     Out[5]: '3.141593e+00'
     """
 
 def test_psearch():
     with tt.AssertPrints("dict.fromkeys"):
         _ip.run_cell("dict.fr*?")
 
 def test_timeit_shlex():
     """test shlex issues with timeit (#1109)"""
     _ip.ex("def f(*a,**kw): pass")
     _ip.magic('timeit -n1 "this is a bug".count(" ")')
     _ip.magic('timeit -r1 -n1 f(" ", 1)')
     _ip.magic('timeit -r1 -n1 f(" ", 1, " ", 2, " ")')
     _ip.magic('timeit -r1 -n1 ("a " + "b")')
     _ip.magic('timeit -r1 -n1 f("a " + "b")')
     _ip.magic('timeit -r1 -n1 f("a " + "b ")')
 
 
 def test_timeit_arguments():
     "Test valid timeit arguments, should not cause SyntaxError (GH #1269)"
     _ip.magic("timeit ('#')")
 
 
 def test_timeit_special_syntax():
     "Test %%timeit with IPython special syntax"
     @register_line_magic
     def lmagic(line):
         ip = get_ipython()
         ip.user_ns['lmagic_out'] = line
 
     # line mode test
     _ip.run_line_magic('timeit', '-n1 -r1 %lmagic my line')
     nt.assert_equal(_ip.user_ns['lmagic_out'], 'my line')
     # cell mode test
     _ip.run_cell_magic('timeit', '-n1 -r1', '%lmagic my line2')
     nt.assert_equal(_ip.user_ns['lmagic_out'], 'my line2')
 
 def test_timeit_return():
     """
     test whether timeit -o return object
     """
 
     res = _ip.run_line_magic('timeit','-n10 -r10 -o 1')
     assert(res is not None)
 
 def test_timeit_quiet():
     """
     test quiet option of timeit magic
     """
     with tt.AssertNotPrints("loops"):
         _ip.run_cell("%timeit -n1 -r1 -q 1")
 
 def test_timeit_return_quiet():
     with tt.AssertNotPrints("loops"):
         res = _ip.run_line_magic('timeit', '-n1 -r1 -q -o 1')
     assert (res is not None)
 
 def test_timeit_invalid_return():
     with nt.assert_raises_regex(SyntaxError, "outside function"):
         _ip.run_line_magic('timeit', 'return')
 
 @dec.skipif(execution.profile is None)
 def test_prun_special_syntax():
     "Test %%prun with IPython special syntax"
     @register_line_magic
     def lmagic(line):
         ip = get_ipython()
         ip.user_ns['lmagic_out'] = line
 
     # line mode test
     _ip.run_line_magic('prun', '-q %lmagic my line')
     nt.assert_equal(_ip.user_ns['lmagic_out'], 'my line')
     # cell mode test
     _ip.run_cell_magic('prun', '-q', '%lmagic my line2')
     nt.assert_equal(_ip.user_ns['lmagic_out'], 'my line2')
 
 @dec.skipif(execution.profile is None)
 def test_prun_quotes():
     "Test that prun does not clobber string escapes (GH #1302)"
     _ip.magic(r"prun -q x = '\t'")
     nt.assert_equal(_ip.user_ns['x'], '\t')
 
 def test_extension():
     # Debugging information for failures of this test
     print('sys.path:')
     for p in sys.path:
         print(' ', p)
     print('CWD', os.getcwd())
 
     nt.assert_raises(ImportError, _ip.magic, "load_ext daft_extension")
     daft_path = os.path.join(os.path.dirname(__file__), "daft_extension")
     sys.path.insert(0, daft_path)
     try:
         _ip.user_ns.pop('arq', None)
         invalidate_caches()   # Clear import caches
         _ip.magic("load_ext daft_extension")
         nt.assert_equal(_ip.user_ns['arq'], 185)
         _ip.magic("unload_ext daft_extension")
         assert 'arq' not in _ip.user_ns
     finally:
         sys.path.remove(daft_path)
 
 
 def test_notebook_export_json():
     _ip = get_ipython()
     _ip.history_manager.reset()   # Clear any existing history.
     cmds = [u"a=1", u"def b():\n  return a**2", u"print('noël, été', b())"]
     for i, cmd in enumerate(cmds, start=1):
         _ip.history_manager.store_inputs(i, cmd)
     with TemporaryDirectory() as td:
         outfile = os.path.join(td, "nb.ipynb")
         _ip.magic("notebook -e %s" % outfile)
 
 
 class TestEnv(TestCase):
 
     def test_env(self):
         env = _ip.magic("env")
         self.assertTrue(isinstance(env, dict))
 
     def test_env_get_set_simple(self):
         env = _ip.magic("env var val1")
         self.assertEqual(env, None)
         self.assertEqual(os.environ['var'], 'val1')
         self.assertEqual(_ip.magic("env var"), 'val1')
         env = _ip.magic("env var=val2")
         self.assertEqual(env, None)
         self.assertEqual(os.environ['var'], 'val2')
 
     def test_env_get_set_complex(self):
         env = _ip.magic("env var 'val1 '' 'val2")
         self.assertEqual(env, None)
         self.assertEqual(os.environ['var'], "'val1 '' 'val2")
         self.assertEqual(_ip.magic("env var"), "'val1 '' 'val2")
         env = _ip.magic('env var=val2 val3="val4')
         self.assertEqual(env, None)
         self.assertEqual(os.environ['var'], 'val2 val3="val4')
 
     def test_env_set_bad_input(self):
         self.assertRaises(UsageError, lambda: _ip.magic("set_env var"))
 
     def test_env_set_whitespace(self):
         self.assertRaises(UsageError, lambda: _ip.magic("env var A=B"))
 
 
 class CellMagicTestCase(TestCase):
 
     def check_ident(self, magic):
         # Manually called, we get the result
         out = _ip.run_cell_magic(magic, 'a', 'b')
         nt.assert_equal(out, ('a','b'))
         # Via run_cell, it goes into the user's namespace via displayhook
-        _ip.run_cell('%%' + magic +' c\nd')
-        nt.assert_equal(_ip.user_ns['_'], ('c','d'))
+        _ip.run_cell('%%' + magic +' c\nd\n')
+        nt.assert_equal(_ip.user_ns['_'], ('c','d\n'))
 
     def test_cell_magic_func_deco(self):
         "Cell magic using simple decorator"
         @register_cell_magic
         def cellm(line, cell):
             return line, cell
 
         self.check_ident('cellm')
 
     def test_cell_magic_reg(self):
         "Cell magic manually registered"
         def cellm(line, cell):
             return line, cell
 
         _ip.register_magic_function(cellm, 'cell', 'cellm2')
         self.check_ident('cellm2')
 
     def test_cell_magic_class(self):
         "Cell magics declared via a class"
         @magics_class
         class MyMagics(Magics):
 
             @cell_magic
             def cellm3(self, line, cell):
                 return line, cell
 
         _ip.register_magics(MyMagics)
         self.check_ident('cellm3')
 
     def test_cell_magic_class2(self):
         "Cell magics declared via a class, #2"
         @magics_class
         class MyMagics2(Magics):
 
             @cell_magic('cellm4')
             def cellm33(self, line, cell):
                 return line, cell
             
         _ip.register_magics(MyMagics2)
         self.check_ident('cellm4')
         # Check that nothing is registered as 'cellm33'
         c33 = _ip.find_cell_magic('cellm33')
         nt.assert_equal(c33, None)
 
 def test_file():
     """Basic %%file"""
     ip = get_ipython()
     with TemporaryDirectory() as td:
         fname = os.path.join(td, 'file1')
         ip.run_cell_magic("file", fname, u'\n'.join([
             'line1',
             'line2',
         ]))
         with open(fname) as f:
             s = f.read()
         nt.assert_in('line1\n', s)
         nt.assert_in('line2', s)
 
 def test_file_var_expand():
     """%%file $filename"""
     ip = get_ipython()
     with TemporaryDirectory() as td:
         fname = os.path.join(td, 'file1')
         ip.user_ns['filename'] = fname
         ip.run_cell_magic("file", '$filename', u'\n'.join([
             'line1',
             'line2',
         ]))
         with open(fname) as f:
             s = f.read()
         nt.assert_in('line1\n', s)
         nt.assert_in('line2', s)
 
 def test_file_unicode():
     """%%file with unicode cell"""
     ip = get_ipython()
     with TemporaryDirectory() as td:
         fname = os.path.join(td, 'file1')
         ip.run_cell_magic("file", fname, u'\n'.join([
             u'liné1',
             u'liné2',
         ]))
         with io.open(fname, encoding='utf-8') as f:
             s = f.read()
         nt.assert_in(u'liné1\n', s)
         nt.assert_in(u'liné2', s)
 
 def test_file_amend():
     """%%file -a amends files"""
     ip = get_ipython()
     with TemporaryDirectory() as td:
         fname = os.path.join(td, 'file2')
         ip.run_cell_magic("file", fname, u'\n'.join([
             'line1',
             'line2',
         ]))
         ip.run_cell_magic("file", "-a %s" % fname, u'\n'.join([
             'line3',
             'line4',
         ]))
         with open(fname) as f:
             s = f.read()
         nt.assert_in('line1\n', s)
         nt.assert_in('line3\n', s)
         
     
 def test_script_config():
     ip = get_ipython()
     ip.config.ScriptMagics.script_magics = ['whoda']
     sm = script.ScriptMagics(shell=ip)
     nt.assert_in('whoda', sm.magics['cell'])
 
 @dec.skip_win32
 def test_script_out():
     ip = get_ipython()
     ip.run_cell_magic("script", "--out output sh", "echo 'hi'")
     nt.assert_equal(ip.user_ns['output'], 'hi\n')
 
 @dec.skip_win32
 def test_script_err():
     ip = get_ipython()
     ip.run_cell_magic("script", "--err error sh", "echo 'hello' >&2")
     nt.assert_equal(ip.user_ns['error'], 'hello\n')
 
 @dec.skip_win32
 def test_script_out_err():
     ip = get_ipython()
     ip.run_cell_magic("script", "--out output --err error sh", "echo 'hi'\necho 'hello' >&2")
     nt.assert_equal(ip.user_ns['output'], 'hi\n')
     nt.assert_equal(ip.user_ns['error'], 'hello\n')
 
 @dec.skip_win32
 def test_script_bg_out():
     ip = get_ipython()
     ip.run_cell_magic("script", "--bg --out output sh", "echo 'hi'")
     nt.assert_equal(ip.user_ns['output'].read(), b'hi\n')
 
 @dec.skip_win32
 def test_script_bg_err():
     ip = get_ipython()
     ip.run_cell_magic("script", "--bg --err error sh", "echo 'hello' >&2")
     nt.assert_equal(ip.user_ns['error'].read(), b'hello\n')
 
 @dec.skip_win32
 def test_script_bg_out_err():
     ip = get_ipython()
     ip.run_cell_magic("script", "--bg --out output --err error sh", "echo 'hi'\necho 'hello' >&2")
     nt.assert_equal(ip.user_ns['output'].read(), b'hi\n')
     nt.assert_equal(ip.user_ns['error'].read(), b'hello\n')
 
 def test_script_defaults():
     ip = get_ipython()
     for cmd in ['sh', 'bash', 'perl', 'ruby']:
         try:
             find_cmd(cmd)
         except Exception:
             pass
         else:
             nt.assert_in(cmd, ip.magics_manager.magics['cell'])
 
 
 @magics_class
 class FooFoo(Magics):
     """class with both %foo and %%foo magics"""
     @line_magic('foo')
     def line_foo(self, line):
         "I am line foo"
         pass
 
     @cell_magic("foo")
     def cell_foo(self, line, cell):
         "I am cell foo, not line foo"
         pass
 
 def test_line_cell_info():
     """%%foo and %foo magics are distinguishable to inspect"""
     ip = get_ipython()
     ip.magics_manager.register(FooFoo)
     oinfo = ip.object_inspect('foo')
     nt.assert_true(oinfo['found'])
     nt.assert_true(oinfo['ismagic'])
     
     oinfo = ip.object_inspect('%%foo')
     nt.assert_true(oinfo['found'])
     nt.assert_true(oinfo['ismagic'])
     nt.assert_equal(oinfo['docstring'], FooFoo.cell_foo.__doc__)
 
     oinfo = ip.object_inspect('%foo')
     nt.assert_true(oinfo['found'])
     nt.assert_true(oinfo['ismagic'])
     nt.assert_equal(oinfo['docstring'], FooFoo.line_foo.__doc__)
 
 def test_multiple_magics():
     ip = get_ipython()
     foo1 = FooFoo(ip)
     foo2 = FooFoo(ip)
     mm = ip.magics_manager
     mm.register(foo1)
     nt.assert_true(mm.magics['line']['foo'].__self__ is foo1)
     mm.register(foo2)
     nt.assert_true(mm.magics['line']['foo'].__self__ is foo2)
 
 def test_alias_magic():
     """Test %alias_magic."""
     ip = get_ipython()
     mm = ip.magics_manager
 
     # Basic operation: both cell and line magics are created, if possible.
     ip.run_line_magic('alias_magic', 'timeit_alias timeit')
     nt.assert_in('timeit_alias', mm.magics['line'])
     nt.assert_in('timeit_alias', mm.magics['cell'])
 
     # --cell is specified, line magic not created.
     ip.run_line_magic('alias_magic', '--cell timeit_cell_alias timeit')
     nt.assert_not_in('timeit_cell_alias', mm.magics['line'])
     nt.assert_in('timeit_cell_alias', mm.magics['cell'])
 
     # Test that line alias is created successfully.
     ip.run_line_magic('alias_magic', '--line env_alias env')
     nt.assert_equal(ip.run_line_magic('env', ''),
                     ip.run_line_magic('env_alias', ''))
 
     # Test that line alias with parameters passed in is created successfully.
     ip.run_line_magic('alias_magic', '--line history_alias history --params ' + shlex.quote('3'))
     nt.assert_in('history_alias', mm.magics['line'])
 
 
 def test_save():
     """Test %save."""
     ip = get_ipython()
     ip.history_manager.reset()   # Clear any existing history.
     cmds = [u"a=1", u"def b():\n  return a**2", u"print(a, b())"]
     for i, cmd in enumerate(cmds, start=1):
         ip.history_manager.store_inputs(i, cmd)
     with TemporaryDirectory() as tmpdir:
         file = os.path.join(tmpdir, "testsave.py")
         ip.run_line_magic("save", "%s 1-10" % file)
         with open(file) as f:
             content = f.read()
             nt.assert_equal(content.count(cmds[0]), 1)
             nt.assert_in('coding: utf-8', content)
         ip.run_line_magic("save", "-a %s 1-10" % file)
         with open(file) as f:
             content = f.read()
             nt.assert_equal(content.count(cmds[0]), 2)
             nt.assert_in('coding: utf-8', content)
 
 
 def test_store():
     """Test %store."""
     ip = get_ipython()
     ip.run_line_magic('load_ext', 'storemagic')
     
     # make sure the storage is empty
     ip.run_line_magic('store', '-z')
     ip.user_ns['var'] = 42
     ip.run_line_magic('store', 'var')
     ip.user_ns['var'] = 39
     ip.run_line_magic('store', '-r')
     nt.assert_equal(ip.user_ns['var'], 42)
 
     ip.run_line_magic('store', '-d var')
     ip.user_ns['var'] = 39
     ip.run_line_magic('store' , '-r')
     nt.assert_equal(ip.user_ns['var'], 39)
 
 
 def _run_edit_test(arg_s, exp_filename=None,
                         exp_lineno=-1,
                         exp_contents=None,
                         exp_is_temp=None):
     ip = get_ipython()
     M = code.CodeMagics(ip)
     last_call = ['','']
     opts,args = M.parse_options(arg_s,'prxn:')
     filename, lineno, is_temp = M._find_edit_target(ip, args, opts, last_call)
         
     if exp_filename is not None:
         nt.assert_equal(exp_filename, filename)
     if exp_contents is not None:
         with io.open(filename, 'r', encoding='utf-8') as f:
             contents = f.read()
         nt.assert_equal(exp_contents, contents)
     if exp_lineno != -1:
         nt.assert_equal(exp_lineno, lineno)
     if exp_is_temp is not None:
         nt.assert_equal(exp_is_temp, is_temp)
 
 
 def test_edit_interactive():
     """%edit on interactively defined objects"""
     ip = get_ipython()
     n = ip.execution_count
     ip.run_cell(u"def foo(): return 1", store_history=True)
     
     try:
         _run_edit_test("foo")
     except code.InteractivelyDefined as e:
         nt.assert_equal(e.index, n)
     else:
         raise AssertionError("Should have raised InteractivelyDefined")
 
 
 def test_edit_cell():
     """%edit [cell id]"""
     ip = get_ipython()
     
     ip.run_cell(u"def foo(): return 1", store_history=True)
     
     # test
     _run_edit_test("1", exp_contents=ip.user_ns['In'][1], exp_is_temp=True)
 
 def test_bookmark():
     ip = get_ipython()
     ip.run_line_magic('bookmark', 'bmname')
     with tt.AssertPrints('bmname'):
         ip.run_line_magic('bookmark', '-l')
     ip.run_line_magic('bookmark', '-d bmname')
 
 def test_ls_magic():
     ip = get_ipython()
     json_formatter = ip.display_formatter.formatters['application/json']
     json_formatter.enabled = True
     lsmagic = ip.magic('lsmagic')
     with warnings.catch_warnings(record=True) as w:
         j = json_formatter(lsmagic)
     nt.assert_equal(sorted(j), ['cell', 'line'])
     nt.assert_equal(w, []) # no warnings
 
 def test_strip_initial_indent():
     def sii(s):
         lines = s.splitlines()
         return '\n'.join(code.strip_initial_indent(lines))
 
     nt.assert_equal(sii("  a = 1\nb = 2"), "a = 1\nb = 2")
     nt.assert_equal(sii("  a\n    b\nc"), "a\n  b\nc")
     nt.assert_equal(sii("a\n  b"), "a\n  b")
 
 def test_logging_magic_quiet_from_arg():
     _ip.config.LoggingMagics.quiet = False
     lm = logging.LoggingMagics(shell=_ip)
     with TemporaryDirectory() as td:
         try:
             with tt.AssertNotPrints(re.compile("Activating.*")):
                 lm.logstart('-q {}'.format(
                         os.path.join(td, "quiet_from_arg.log")))
         finally:
             _ip.logger.logstop()
 
 def test_logging_magic_quiet_from_config():
     _ip.config.LoggingMagics.quiet = True
     lm = logging.LoggingMagics(shell=_ip)
     with TemporaryDirectory() as td:
         try:
             with tt.AssertNotPrints(re.compile("Activating.*")):
                 lm.logstart(os.path.join(td, "quiet_from_config.log"))
         finally:
             _ip.logger.logstop()
     
 def test_logging_magic_not_quiet():
     _ip.config.LoggingMagics.quiet = False
     lm = logging.LoggingMagics(shell=_ip)
     with TemporaryDirectory() as td:
         try:
             with tt.AssertPrints(re.compile("Activating.*")):
                 lm.logstart(os.path.join(td, "not_quiet.log"))
         finally:
             _ip.logger.logstop()