import sys from IPython.testing.tools import AssertPrints, AssertNotPrints from IPython.core.displayhook import CapturingDisplayHook from IPython.utils.capture import CapturedIO ip = get_ipython() 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_overrite_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_overrite_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_supress(): """ 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