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from geopandas._compat import import_optional_dependency
import pytest
def test_import_optional_dependency_present():
# pandas is not optional, but we know it is present
pandas = import_optional_dependency("pandas")
assert pandas is not None
# module imported normally must be same
import pandas as pd
assert pandas == pd
def test_import_optional_dependency_absent():
with pytest.raises(ImportError, match="Missing optional dependency 'foo'"):
import_optional_dependency("foo")
with pytest.raises(ImportError, match="foo is required"):
import_optional_dependency("foo", extra="foo is required")
@pytest.mark.parametrize(
"bad_import", [["foo"], 0, False, True, {}, {"foo"}, {"foo": "bar"}]
)
def test_import_optional_dependency_invalid(bad_import):
with pytest.raises(ValueError, match="Invalid module name"):
import_optional_dependency(bad_import)
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