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.venv/Lib/site-packages/IPython/utils/tests/test_importstring.py

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+"""Tests for IPython.utils.importstring."""
+
+#-----------------------------------------------------------------------------
+#  Copyright (C) 2013  The IPython Development Team
+#
+#  Distributed under the terms of the BSD License.  The full license is in
+#  the file COPYING, distributed as part of this software.
+#-----------------------------------------------------------------------------
+
+#-----------------------------------------------------------------------------
+# Imports
+#-----------------------------------------------------------------------------
+
+import pytest
+
+from IPython.utils.importstring import import_item
+
+#-----------------------------------------------------------------------------
+# Tests
+#-----------------------------------------------------------------------------
+
+def test_import_plain():
+    "Test simple imports"
+    import os
+
+    os2 = import_item("os")
+    assert os is os2
+
+
+def test_import_nested():
+    "Test nested imports from the stdlib"
+    from os import path
+
+    path2 = import_item("os.path")
+    assert path is path2
+
+
+def test_import_raises():
+    "Test that failing imports raise the right exception"
+    pytest.raises(ImportError, import_item, "IPython.foobar")