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