upstream/ipython Files · IPython/core/tests/test_autocall.py

Make traitlets notify check more robust against classes redefining equality and bool...

Make traitlets notify check more robust against classes redefining equality and bool Before this change, numpy arrays caused problems since comparing two numpy arrays returns an array of truth values, rather than a single truth value. This change guards against redefining the semantics of comparison by notifying on a trait change if the equality comparison returns anything other than an explicit True value.

Thomas Kluyver - - Load All Authors

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             test_autocall.py
        
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      """These kinds of tests are less than ideal, but at least they run.

      This was an old test that was being run interactively in the top-level tests/

      directory, which we are removing.  For now putting this here ensures at least

      we do run the test, though ultimately this functionality should all be tested

      with better-isolated tests that don't rely on the global instance in iptest.

      """

      from IPython.utils import py3compat

      @py3compat.doctest_refactor_print

      def doctest_autocall():

          """

          In [1]: def f1(a,b,c):

             ...:     return a+b+c

             ...: 

          In [2]: def f2(a):

             ...:     return a + a

             ...:   

          In [3]: ;f2 a b c

          Out[3]: 'a b ca b c'

          In [4]: assert _ == "a b ca b c"

          In [5]: ,f1 a b c

          Out[5]: 'abc'

          In [6]: assert _ == 'abc'

          In [7]: print _

          abc

          In [8]: /f1 1,2,3

          Out[8]: 6

          In [9]: assert _ == 6

          In [10]: /f2 4

          Out[10]: 8

          In [11]: assert _ == 8

          In [11]: del f1, f2

          """

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				"""These kinds of tests are less than ideal, but at least they run.

				This was an old test that was being run interactively in the top-level tests/
				directory, which we are removing. For now putting this here ensures at least
				we do run the test, though ultimately this functionality should all be tested
				with better-isolated tests that don't rely on the global instance in iptest.
				"""
				from IPython.utils import py3compat

				@py3compat.doctest_refactor_print
				def doctest_autocall():
				"""
				In [1]: def f1(a,b,c):
				...: return a+b+c
				...:

				In [2]: def f2(a):
				...: return a + a
				...:

				In [3]: ;f2 a b c
				Out[3]: 'a b ca b c'

				In [4]: assert _ == "a b ca b c"

				In [5]: ,f1 a b c
				Out[5]: 'abc'

				In [6]: assert _ == 'abc'

				In [7]: print _
				abc

				In [8]: /f1 1,2,3
				Out[8]: 6

				In [9]: assert _ == 6

				In [10]: /f2 4
				Out[10]: 8

				In [11]: assert _ == 8

				In [11]: del f1, f2
				"""