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import sys
from IPython.testing.tools import AssertPrints, AssertNotPrints
from IPython.core.displayhook import CapturingDisplayHook
from IPython.utils.capture import CapturedIO
def test_output_displayed():
"""Checking to make sure that output is displayed"""
with AssertPrints("2"):
ip.run_cell("1+1", store_history=True)
with AssertPrints("2"):
ip.run_cell("1+1 # comment with a semicolon;", store_history=True)
with AssertPrints("2"):
ip.run_cell("1+1\n#commented_out_function();", store_history=True)
def test_output_quiet():
"""Checking to make sure that output is quiet"""
with AssertNotPrints("2"):
ip.run_cell("1+1;", store_history=True)
with AssertNotPrints("2"):
ip.run_cell("1+1; # comment with a semicolon", store_history=True)
with AssertNotPrints("2"):
ip.run_cell("1+1;\n#commented_out_function()", store_history=True)
def test_underscore_no_overwrite_user():
ip.run_cell("_ = 42", store_history=True)
ip.run_cell("1+1", store_history=True)
with AssertPrints("42"):
ip.run_cell("print(_)", store_history=True)
ip.run_cell("del _", store_history=True)
ip.run_cell("6+6", store_history=True)
with AssertPrints("12"):
ip.run_cell("_", store_history=True)
def test_underscore_no_overwrite_builtins():
ip.run_cell("import gettext ; gettext.install('foo')", store_history=True)
ip.run_cell("3+3", store_history=True)
with AssertPrints("gettext"):
ip.run_cell("print(_)", store_history=True)
ip.run_cell('_ = "userset"', store_history=True)
with AssertPrints("userset"):
ip.run_cell("print(_)", store_history=True)
ip.run_cell("import builtins; del builtins._")
def test_interactivehooks_ast_modes():
"""
Test that ast nodes can be triggered with different modes
"""
saved_mode = ip.ast_node_interactivity
ip.ast_node_interactivity = "last_expr_or_assign"
try:
with AssertPrints("2"):
ip.run_cell("a = 1+1", store_history=True)
with AssertPrints("9"):
ip.run_cell("b = 1+8 # comment with a semicolon;", store_history=False)
with AssertPrints("7"):
ip.run_cell("c = 1+6\n#commented_out_function();", store_history=True)
ip.run_cell("d = 11", store_history=True)
with AssertPrints("12"):
ip.run_cell("d += 1", store_history=True)
with AssertNotPrints("42"):
ip.run_cell("(u,v) = (41+1, 43-1)")
finally:
ip.ast_node_interactivity = saved_mode
def test_interactivehooks_ast_modes_semi_suppress():
"""
Test that ast nodes can be triggered with different modes and suppressed
by semicolon
"""
saved_mode = ip.ast_node_interactivity
ip.ast_node_interactivity = "last_expr_or_assign"
try:
with AssertNotPrints("2"):
ip.run_cell("x = 1+1;", store_history=True)
with AssertNotPrints("7"):
ip.run_cell("y = 1+6; # comment with a semicolon", store_history=True)
with AssertNotPrints("9"):
ip.run_cell("z = 1+8;\n#commented_out_function()", store_history=True)
finally:
ip.ast_node_interactivity = saved_mode
def test_capture_display_hook_format():
"""Tests that the capture display hook conforms to the CapturedIO output format"""
hook = CapturingDisplayHook(ip)
hook({"foo": "bar"})
captured = CapturedIO(sys.stdout, sys.stderr, hook.outputs)
# Should not raise with RichOutput transformation error
captured.outputs
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