# -*- coding: utf-8 -*-
"""Test suite for the deepreload module."""
 
#-----------------------------------------------------------------------------
# Imports
#-----------------------------------------------------------------------------
 
import os
import sys
 
import nose.tools as nt
 
from IPython.testing import decorators as dec
from IPython.utils.syspathcontext import prepended_to_syspath
from IPython.utils.tempdir import TemporaryDirectory
from IPython.lib.deepreload import reload as dreload
 
#-----------------------------------------------------------------------------
# Test functions begin
#-----------------------------------------------------------------------------
 
@dec.skipif_not_numpy
def test_deepreload_numpy():
    "Test that NumPy can be deep reloaded."
    import numpy
    exclude = [
        # Standard exclusions:
        'sys', 'os.path', '__builtin__', '__main__',
        # Test-related exclusions:
        'unittest', 'UserDict',
        ]
    dreload(numpy, exclude=exclude)
 
def test_deepreload():
    "Test that dreload does deep reloads and skips excluded modules."
    with TemporaryDirectory() as tmpdir:
        with prepended_to_syspath(tmpdir):
            with open(os.path.join(tmpdir, 'A.py'), 'w') as f:
                f.write("class Object(object):\n    pass\n")
            with open(os.path.join(tmpdir, 'B.py'), 'w') as f:
                f.write("import A\n")
            import A
            import B
 
            # Test that A is not reloaded.
            obj = A.Object()
            dreload(B, exclude=['A'])
            nt.assert_true(isinstance(obj, A.Object))
 
            # Test that A is reloaded.
            obj = A.Object()
            dreload(B)
            nt.assert_false(isinstance(obj, A.Object))