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# -*- coding: utf-8 -*-
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"""Test suite for the deepreload module."""
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# Copyright (c) IPython Development Team.
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# Distributed under the terms of the Modified BSD License.
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import types
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from pathlib import Path
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import pytest
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from tempfile import TemporaryDirectory
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from IPython.lib.deepreload import modules_reloading
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from IPython.lib.deepreload import reload as dreload
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from IPython.utils.syspathcontext import prepended_to_syspath
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def test_deepreload():
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"Test that dreload does deep reloads and skips excluded modules."
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with TemporaryDirectory() as tmpdir:
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with prepended_to_syspath(tmpdir):
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tmpdirpath = Path(tmpdir)
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with open(tmpdirpath / "A.py", "w", encoding="utf-8") as f:
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f.write("class Object:\n pass\nok = True\n")
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with open(tmpdirpath / "B.py", "w", encoding="utf-8") as f:
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f.write("import A\nassert A.ok, 'we are fine'\n")
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import A
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import B
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# Test that A is not reloaded.
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obj = A.Object()
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dreload(B, exclude=["A"])
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assert isinstance(obj, A.Object) is True
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# Test that an import failure will not blow-up us.
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A.ok = False
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with pytest.raises(AssertionError, match="we are fine"):
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dreload(B, exclude=["A"])
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assert len(modules_reloading) == 0
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assert not A.ok
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# Test that A is reloaded.
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obj = A.Object()
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A.ok = False
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dreload(B)
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assert A.ok
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assert isinstance(obj, A.Object) is False
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def test_not_module():
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pytest.raises(TypeError, dreload, "modulename")
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def test_not_in_sys_modules():
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fake_module = types.ModuleType("fake_module")
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with pytest.raises(ImportError, match="not in sys.modules"):
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dreload(fake_module)
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