upstream/ipython Files · IPython/utils/tests/test_pickleutil.py

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Fix and The function in charge of actually converting cursor offset to CodeMirror line number and character number was actually crashing when the cursor was at the last character (loop until undefined, then access length of variable, which is undefined). This was hiding a bug in which when you would completer to a single completion pressing tab after as-you-type filtering, the completion would be completed twice. The logic that was supposed to detect whether or not all completions had a common prefix was actually faulty as the common prefix used to be a string but was then changed to an object. Hence the logic to check whether or not there was actually a common prefix was always true, even for empty string, leading to the deletion of the line (replace by '') in some cases.

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      import pickle

      import nose.tools as nt

      from IPython.utils import codeutil

      from IPython.utils.pickleutil import can, uncan

      def interactive(f):

          f.__module__ = '__main__'

          return f

      def dumps(obj):

          return pickle.dumps(can(obj))

      def loads(obj):

          return uncan(pickle.loads(obj))

      def test_no_closure():

          @interactive

          def foo():

              a = 5

              return a

          pfoo = dumps(foo)

          bar = loads(pfoo)

          nt.assert_equal(foo(), bar())

      def test_generator_closure():

          # this only creates a closure on Python 3

          @interactive

          def foo():

              i = 'i'

              r = [ i for j in (1,2) ]

              return r

          pfoo = dumps(foo)

          bar = loads(pfoo)

          nt.assert_equal(foo(), bar())

      def test_nested_closure():

          @interactive

          def foo():

              i = 'i'

              def g():

                  return i

              return g()

          pfoo = dumps(foo)

          bar = loads(pfoo)

          nt.assert_equal(foo(), bar())

      def test_closure():

          i = 'i'

          @interactive

          def foo():

              return i

          pfoo = dumps(foo)

          bar = loads(pfoo)

          nt.assert_equal(foo(), bar())

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				import pickle

				import nose.tools as nt
				from IPython.utils import codeutil
				from IPython.utils.pickleutil import can, uncan

				def interactive(f):
				f.__module__ = '__main__'
				return f

				def dumps(obj):
				return pickle.dumps(can(obj))

				def loads(obj):
				return uncan(pickle.loads(obj))

				def test_no_closure():
				@interactive
				def foo():
				a = 5
				return a

				pfoo = dumps(foo)
				bar = loads(pfoo)
				nt.assert_equal(foo(), bar())

				def test_generator_closure():
				# this only creates a closure on Python 3
				@interactive
				def foo():
				i = 'i'
				r = [ i for j in (1,2) ]
				return r

				pfoo = dumps(foo)
				bar = loads(pfoo)
				nt.assert_equal(foo(), bar())

				def test_nested_closure():
				@interactive
				def foo():
				i = 'i'
				def g():
				return i
				return g()

				pfoo = dumps(foo)
				bar = loads(pfoo)
				nt.assert_equal(foo(), bar())

				def test_closure():
				i = 'i'
				@interactive
				def foo():
				return i

				pfoo = dumps(foo)
				bar = loads(pfoo)
				nt.assert_equal(foo(), bar())