import sys
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import types
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import pytest
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import pandas.util._test_decorators as td
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@pytest.mark.parametrize("name", ["foo", "hello123"])
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def test_safe_import_non_existent(name):
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assert not td.safe_import(name)
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def test_safe_import_exists():
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assert td.safe_import("pandas")
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@pytest.mark.parametrize("min_version,valid", [("0.0.0", True), ("99.99.99", False)])
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def test_safe_import_versions(min_version, valid):
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result = td.safe_import("pandas", min_version=min_version)
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result = result if valid else not result
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assert result
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@pytest.mark.parametrize(
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"min_version,valid", [(None, False), ("1.0", True), ("2.0", False)]
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)
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def test_safe_import_dummy(monkeypatch, min_version, valid):
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mod_name = "hello123"
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mod = types.ModuleType(mod_name)
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mod.__version__ = "1.5"
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if min_version is not None:
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monkeypatch.setitem(sys.modules, mod_name, mod)
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result = td.safe_import(mod_name, min_version=min_version)
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result = result if valid else not result
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assert result
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