Integration tests are broken

Start by running the two nose commands in the issue and compare failures across integrationtests/test_context_performance.py and integrationtests/blocks. Then inspect the referenced block_test_case.py, analysis_test_case.py, unparser_test_case.py, and codetools/blocks/analysis.py locations. Done means the reported integration tests and doctests pass without the listed errors.

Running the integration tests one gets two kind of errors

A. When running

python -m nose.core ./integrationtests -v

we get

test_write (test_context_performance.MultiContextTestCase) ... ok
Compare exec with Adapter to the speed of a dict. (slowdown < 2.5) ... FAIL

======================================================================
FAIL: Compare exec with Adapter to the speed of a dict. (slowdown < 2.5)
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Traceback (most recent call last):
  File "C:\Users\itziakos\Projects\codetools\integrationtests\test_context_performance.py", line 219, in test_exec_is_not_slow
    assert slowdown < allowed_slowdown, msg
AssertionError: ('actual slowdown, time: 3.065822', 6.364452719815567e-05)
-------------------- >> begin captured stdout << ---------------------
[actual slowdown=3.07]
--------------------- >> end captured stdout << ----------------------

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Ran 49 tests in 1.340s

B. When running

python -m nose.core ./integrationtests/block

we get

ith_string (unparser_test_case.UnparseCompilerAstTestCase) ... ok
test_unary_minus (unparser_test_case.UnparseCompilerAstTestCase) ... ok
test_with (unparser_test_case.UnparseCompilerAstTestCase) ... ok

======================================================================
ERROR: Expressions
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Traceback (most recent call last):
  File "C:\Users\itziakos\Projects\codetools\integrationtests\blocks\block_test_case.py", line 473, in test
    self._base('1+2', 3, ())
  File "C:\Users\itziakos\Projects\codetools\integrationtests\blocks\block_test_case.py", line 467, in _base
    self.assertEqual(value, e.evaluate(dict(mapping)))
  File "C:\Users\itziakos\Projects\codetools\codetools\blocks\block.py", line 966, in evaluate
    return eval(self._code, {}, context)
  File "c:\users\itziakos\projects\traits\traits\trait_handlers.py", line 109, in _undefined_get
    name, class_of( object ) )
TraitError: The '_code' trait of an Expression instance is a property that has no 'get' or 'set' method

======================================================================
FAIL: Doctest: codetools.blocks.analysis.Transformer
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Traceback (most recent call last):
  File "c:\runtimes\default\lib\doctest.py", line 2201, in runTest
    raise self.failureException(self.format_failure(new.getvalue()))
AssertionError: Failed doctest test for codetools.blocks.analysis.Transformer
  File "C:\Users\itziakos\Projects\codetools\codetools\blocks\analysis.py", line 612, in Transformer

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File "C:\Users\itziakos\Projects\codetools\codetools\blocks\analysis.py", line 616, in codetools.blocks.analysis.Transformer
Failed example:
    from compiler_.ast.api import similar
Exception raised:
    Traceback (most recent call last):
      File "c:\runtimes\default\lib\doctest.py", line 1289, in __run
        compileflags, 1) in test.globs
      File "<doctest codetools.blocks.analysis.Transformer[1]>", line 1, in <module>
        from compiler_.ast.api import similar
    ImportError: No module named ast.api
----------------------------------------------------------------------
File "C:\Users\itziakos\Projects\codetools\codetools\blocks\analysis.py", line 618, in codetools.blocks.analysis.Transformer
Failed example:
    similar(ast, Transformer().transform(ast))
Exception raised:
    Traceback (most recent call last):
      File "c:\runtimes\default\lib\doctest.py", line 1289, in __run
        compileflags, 1) in test.globs
      File "<doctest codetools.blocks.analysis.Transformer[3]>", line 1, in <module>
        similar(ast, Transformer().transform(ast))
    NameError: name 'similar' is not defined


======================================================================
FAIL: Doctest: codetools.blocks.analysis.extract_const_assigns
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Traceback (most recent call last):
  File "c:\runtimes\default\lib\doctest.py", line 2201, in runTest
    raise self.failureException(self.format_failure(new.getvalue()))
AssertionError: Failed doctest test for codetools.blocks.analysis.extract_const_assigns
  File "C:\Users\itziakos\Projects\codetools\codetools\blocks\analysis.py", line 52, in extract_const_assigns

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File "C:\Users\itziakos\Projects\codetools\codetools\blocks\analysis.py", line 56, in codetools.blocks.analysis.extract_const_assigns
Failed example:
    from compiler_.ast.api import similar
Exception raised:
    Traceback (most recent call last):
      File "c:\runtimes\default\lib\doctest.py", line 1289, in __run
        compileflags, 1) in test.globs
      File "<doctest codetools.blocks.analysis.extract_const_assigns[1]>", line 1, in <module>
        from compiler_.ast.api import similar
    ImportError: No module named ast.api
----------------------------------------------------------------------
File "C:\Users\itziakos\Projects\codetools\codetools\blocks\analysis.py", line 58, in codetools.blocks.analysis.extract_const_assigns
Failed example:
    similar(ast, parse('a = __a'))
Exception raised:
    Traceback (most recent call last):
      File "c:\runtimes\default\lib\doctest.py", line 1289, in __run
        compileflags, 1) in test.globs
      File "<doctest codetools.blocks.analysis.extract_const_assigns[3]>", line 1, in <module>
        similar(ast, parse('a = __a'))
    NameError: name 'similar' is not defined


======================================================================
FAIL: test_function_kwargs_dict_args (analysis_test_case.NameAnalysisTestCase)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "C:\Users\itziakos\Projects\codetools\integrationtests\blocks\analysis_test_case.py", line 360, in test_function_kwargs_dict_args
    self.assertRaises(TypeError, test_raises, code)
AssertionError: TypeError not raised

======================================================================
FAIL: test_function_varargs_args (analysis_test_case.NameAnalysisTestCase)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "C:\Users\itziakos\Projects\codetools\integrationtests\blocks\analysis_test_case.py", line 318, in test_function_varargs_args
    self.assertRaises(TypeError, test_raises, code)
AssertionError: TypeError not raised

======================================================================
FAIL: Tracebacks have correct file names and line numbers
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Traceback (most recent call last):
  File "C:\Users\itziakos\Projects\codetools\integrationtests\blocks\block_test_case.py", line 332, in test_tracebacks
    test(tracebacks()[-1], 1, 'foo/a.py')
  File "C:\Users\itziakos\Projects\codetools\integrationtests\blocks\block_test_case.py", line 310, in test
    self.assertEqual(tb.tb_lineno, lineno+1)
AssertionError: 1 != 2

======================================================================
FAIL: test_if2 (unparser_test_case.UnparseCompilerAstTestCase)
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Traceback (most recent call last):
  File "C:\Users\itziakos\Projects\codetools\integrationtests\blocks\unparser_test_case.py", line 178, in test_if2
    self._check_round_trip(code)
  File "C:\Users\itziakos\Projects\codetools\integrationtests\blocks\unparser_test_case.py", line 389, in _check_round_trip
    self.assertEqual(desired.strip(), actual.strip())
AssertionError: 'if True: \n    \n    x = 4\nelse: \n    \n    x = 5' != 'if True: \n    \n    x = 4\n\nelse: \n    \n    x = 5'

======================================================================
FAIL: test_if3 (unparser_test_case.UnparseCompilerAstTestCase)
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Traceback (most recent call last):
  File "C:\Users\itziakos\Projects\codetools\integrationtests\blocks\unparser_test_case.py", line 187, in test_if3
    self._check_round_trip(code)
  File "C:\Users\itziakos\Projects\codetools\integrationtests\blocks\unparser_test_case.py", line 389, in _check_round_trip
    self.assertEqual(desired.strip(), actual.strip())
AssertionError: 'if True: \n    pass\n\nelif False: \n    pass\n\nelse: \n    pass' != 'if True: \n    pass\n\nelif False: \n    pass\n\n\nelse: \n    pass'

======================================================================
FAIL: tests if block nested in else block.
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Traceback (most recent call last):
  File "C:\Users\itziakos\Projects\codetools\integrationtests\blocks\unparser_test_case.py", line 207, in test_if5
    self._check_round_trip(code)
  File "C:\Users\itziakos\Projects\codetools\integrationtests\blocks\unparser_test_case.py", line 389, in _check_round_trip
    self.assertEqual(desired.strip(), actual.strip())
AssertionError: 'if True: \n    pass\n\nelse: \n    \n    if True: \n        pass' != 'if True: \n    pass\n\n\nelse: \n    \n    if True: \n        pass'

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Ran 137 tests in 2.158s