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

Complete implementation of interactive traceback support....

Complete implementation of interactive traceback support. Ever since IPython started, we've had no proper tracebacks for interactively entered code. The terminal version was fairly uncomfortable for more than just a few lines of code, so this was never too big of a deal. But the new architecture allows clients with complex multiline input, and having proper tracebacks becomes now critical for real-world use. Thanks to Robert Kern for key implementation ideas and original patch. Closes gh-177.

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      """Tests for the compilerop module.

      """

      #-----------------------------------------------------------------------------

      #  Copyright (C) 2010 The IPython Development Team.

      #

      #  Distributed under the terms of the BSD License.

      #

      #  The full license is in the file COPYING.txt, distributed with this software.

      #-----------------------------------------------------------------------------

      #-----------------------------------------------------------------------------

      # Imports

      #-----------------------------------------------------------------------------

      from __future__ import print_function

      # Stdlib imports

      import linecache

      # Third-party imports

      import nose.tools as nt

      # Our own imports

      from IPython.core import compilerop

      #-----------------------------------------------------------------------------

      # Test functions

      #-----------------------------------------------------------------------------

      def test_code_name():

          code = 'x=1'

          name = compilerop.code_name(code)

          nt.assert_true(name.startswith('<ipython-input-0'))

      def test_code_name2():

          code = 'x=1'

          name = compilerop.code_name(code, 9)

          nt.assert_true(name.startswith('<ipython-input-9'))

      def test_compiler():

          """Test the compiler correctly compiles and caches inputs

          """

          cp = compilerop.CachingCompiler()

          ncache = len(linecache.cache)

          cp('x=1', 'single')

          nt.assert_true(len(linecache.cache) > ncache)

      def test_compiler_check_cache():

          """Test the compiler properly manages the cache.

          """

          # Rather simple-minded tests that just exercise the API

          cp = compilerop.CachingCompiler()

          cp('x=1', 'single', 99)

          # Ensure now that after clearing the cache, our entries survive

          cp.check_cache()

          for k in linecache.cache:

              if k.startswith('<ipython-input-99'):

                  break

          else:

              raise AssertionError('Entry for input-99 missing from linecache')

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				"""Tests for the compilerop module.
				"""
				#-----------------------------------------------------------------------------
				# Copyright (C) 2010 The IPython Development Team.
				#
				# Distributed under the terms of the BSD License.
				#
				# The full license is in the file COPYING.txt, distributed with this software.
				#-----------------------------------------------------------------------------

				#-----------------------------------------------------------------------------
				# Imports
				#-----------------------------------------------------------------------------
				from __future__ import print_function

				# Stdlib imports
				import linecache

				# Third-party imports
				import nose.tools as nt

				# Our own imports
				from IPython.core import compilerop

				#-----------------------------------------------------------------------------
				# Test functions
				#-----------------------------------------------------------------------------

				def test_code_name():
				code = 'x=1'
				name = compilerop.code_name(code)
				nt.assert_true(name.startswith('<ipython-input-0'))


				def test_code_name2():
				code = 'x=1'
				name = compilerop.code_name(code, 9)
				nt.assert_true(name.startswith('<ipython-input-9'))


				def test_compiler():
				"""Test the compiler correctly compiles and caches inputs
				"""
				cp = compilerop.CachingCompiler()
				ncache = len(linecache.cache)
				cp('x=1', 'single')
				nt.assert_true(len(linecache.cache) > ncache)


				def test_compiler_check_cache():
				"""Test the compiler properly manages the cache.
				"""
				# Rather simple-minded tests that just exercise the API
				cp = compilerop.CachingCompiler()
				cp('x=1', 'single', 99)
				# Ensure now that after clearing the cache, our entries survive
				cp.check_cache()
				for k in linecache.cache:
				if k.startswith('<ipython-input-99'):
				break
				else:
				raise AssertionError('Entry for input-99 missing from linecache')