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_quiet():
"""
test quiet option of timeit magic
"""
with tt.AssertNotPrints("loops"):
_ip.run_cell("%timeit -n1 -r1 -q 1")
def test_plain_suppress_exception_chaining(self):
with tt.AssertNotPrints("ZeroDivisionError"), \
tt.AssertPrints("ValueError", suppress=False):
ip.run_cell("%xmode Plain")
ip.run_cell(self.SUPPRESS_CHAINING_CODE)
ip.run_cell("%xmode Verbose")
def test_no_recursion(self):
with tt.AssertNotPrints("skipping similar frames"):
ip.run_cell("non_recurs()")
def _check_smoketest(self, use_aimport=True):
"""
Functional test for the automatic reloader using either
'%autoreload 1' or '%autoreload 2'
"""
mod_name, mod_fn = self.new_module("""
x = 9
z = 123 # this item will be deleted
def foo(y):
return y + 3
class Baz(object):
def __init__(self, x):
self.x = x
def bar(self, y):
return self.x + y
@property
def quux(self):
return 42
def zzz(self):
'''This method will be deleted below'''
return 99
class Bar: # old-style class: weakref doesn't work for it on Python < 2.7
def foo(self):
return 1
""")
#
# Import module, and mark for reloading
#
if use_aimport:
self.shell.magic_autoreload("1")
self.shell.magic_aimport(mod_name)
stream = StringIO()
self.shell.magic_aimport("", stream=stream)
nt.assert_true(("Modules to reload:\n%s" % mod_name) in
stream.getvalue())
nt.assert_raises(
ImportError,
self.shell.magic_aimport, "tmpmod_as318989e89ds")
else:
self.shell.magic_autoreload("2")
self.shell.run_code("import %s" % mod_name)
stream = StringIO()
self.shell.magic_aimport("", stream=stream)
nt.assert_true("Modules to reload:\nall-except-skipped" in
stream.getvalue())
nt.assert_in(mod_name, self.shell.ns)
mod = sys.modules[mod_name]
#
# Test module contents
#
old_foo = mod.foo
old_obj = mod.Baz(9)
old_obj2 = mod.Bar()
def check_module_contents():
nt.assert_equal(mod.x, 9)
nt.assert_equal(mod.z, 123)
nt.assert_equal(old_foo(0), 3)
nt.assert_equal(mod.foo(0), 3)
obj = mod.Baz(9)
nt.assert_equal(old_obj.bar(1), 10)
nt.assert_equal(obj.bar(1), 10)
nt.assert_equal(obj.quux, 42)
nt.assert_equal(obj.zzz(), 99)
obj2 = mod.Bar()
nt.assert_equal(old_obj2.foo(), 1)
nt.assert_equal(obj2.foo(), 1)
check_module_contents()
#
# Simulate a failed reload: no reload should occur and exactly
# one error message should be printed
#
self.write_file(mod_fn, """
a syntax error
""")
with tt.AssertPrints(('[autoreload of %s failed:' % mod_name), channel='stderr'):
self.shell.run_code("pass") # trigger reload
with tt.AssertNotPrints(('[autoreload of %s failed:' % mod_name), channel='stderr'):
self.shell.run_code("pass") # trigger another reload
check_module_contents()
#
# Rewrite module (this time reload should succeed)
#
self.write_file(mod_fn, """
x = 10
def foo(y):
return y + 4
class Baz(object):
def __init__(self, x):
self.x = x
def bar(self, y):
return self.x + y + 1
@property
def quux(self):
return 43
class Bar: # old-style class
def foo(self):
return 2
""")
def check_module_contents():
nt.assert_equal(mod.x, 10)
nt.assert_false(hasattr(mod, 'z'))
nt.assert_equal(old_foo(0), 4) # superreload magic!
nt.assert_equal(mod.foo(0), 4)
obj = mod.Baz(9)
nt.assert_equal(old_obj.bar(1), 11) # superreload magic!
nt.assert_equal(obj.bar(1), 11)
nt.assert_equal(old_obj.quux, 43)
nt.assert_equal(obj.quux, 43)
nt.assert_false(hasattr(old_obj, 'zzz'))
nt.assert_false(hasattr(obj, 'zzz'))
obj2 = mod.Bar()
nt.assert_equal(old_obj2.foo(), 2)
nt.assert_equal(obj2.foo(), 2)
self.shell.run_code("pass") # trigger reload
check_module_contents()
#
# Another failure case: deleted file (shouldn't reload)
#
os.unlink(mod_fn)
self.shell.run_code("pass") # trigger reload
check_module_contents()
#
# Disable autoreload and rewrite module: no reload should occur
#
if use_aimport:
self.shell.magic_aimport("-" + mod_name)
stream = StringIO()
self.shell.magic_aimport("", stream=stream)
nt.assert_true(("Modules to skip:\n%s" % mod_name) in
stream.getvalue())
# This should succeed, although no such module exists
self.shell.magic_aimport("-tmpmod_as318989e89ds")
else:
self.shell.magic_autoreload("0")
self.write_file(mod_fn, """
x = -99
""")
self.shell.run_code("pass") # trigger reload
self.shell.run_code("pass")
check_module_contents()
#
# Re-enable autoreload: reload should now occur
#
if use_aimport:
self.shell.magic_aimport(mod_name)
else:
self.shell.magic_autoreload("")
self.shell.run_code("pass") # trigger reload
nt.assert_equal(mod.x, -99)
def test_syntaxerror_without_lineno(self):
with tt.AssertNotPrints("TypeError"):
with tt.AssertPrints("line unknown"):
ip.run_cell("raise SyntaxError()")
def test_quiet(self):
with tt.AssertNotPrints(re.compile(r'.+')):
install_nbextension(self.src, verbose=0)
def test_no_recursion(self):
with tt.AssertNotPrints("frames repeated"):
ip.run_cell("non_recurs()")
def test_suppress_exception_chaining(self):
if PY3:
with tt.AssertNotPrints("ZeroDivisionError"), \
tt.AssertPrints("ValueError", suppress=False):
ip.run_cell(self.SUPPRESS_CHAINING_CODE)
def test_lines_zero(self, ipython):
'''Ensure that the error message about a failed search is not printed
when 0 last lines are requested.'''
with tt.AssertNotPrints(self.error_not_found):
ipython.run_line_magic('rerun', '-l 0')
def test_search_in_history(self, ipython, history):
with tt.AssertNotPrints("Couldn't evaluate or find in history"):
ip.run_line_magic('recall', 'def')
assert ipython.rl_next_input == history[1]