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48 lines
1.5 KiB
Python
48 lines
1.5 KiB
Python
import pytest
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import pandas as pd
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class TestFlags:
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def test_equality(self):
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a = pd.DataFrame().set_flags(allows_duplicate_labels=True).flags
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b = pd.DataFrame().set_flags(allows_duplicate_labels=False).flags
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assert a == a
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assert b == b
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assert a != b
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assert a != 2
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def test_set(self):
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df = pd.DataFrame().set_flags(allows_duplicate_labels=True)
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a = df.flags
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a.allows_duplicate_labels = False
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assert a.allows_duplicate_labels is False
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a["allows_duplicate_labels"] = True
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assert a.allows_duplicate_labels is True
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def test_repr(self):
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a = repr(pd.DataFrame({"A"}).set_flags(allows_duplicate_labels=True).flags)
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assert a == "<Flags(allows_duplicate_labels=True)>"
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a = repr(pd.DataFrame({"A"}).set_flags(allows_duplicate_labels=False).flags)
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assert a == "<Flags(allows_duplicate_labels=False)>"
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def test_obj_ref(self):
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df = pd.DataFrame()
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flags = df.flags
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del df
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with pytest.raises(ValueError, match="object has been deleted"):
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flags.allows_duplicate_labels = True
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def test_getitem(self):
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df = pd.DataFrame()
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flags = df.flags
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assert flags["allows_duplicate_labels"] is True
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flags["allows_duplicate_labels"] = False
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assert flags["allows_duplicate_labels"] is False
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with pytest.raises(KeyError, match="a"):
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flags["a"]
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with pytest.raises(ValueError, match="a"):
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flags["a"] = 10
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