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83 lines
1.9 KiB
83 lines
1.9 KiB
import os
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import pytest
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import pandas.compat as compat
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import pandas._testing as tm
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def test_rands():
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r = tm.rands(10)
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assert len(r) == 10
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def test_rands_array_1d():
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arr = tm.rands_array(5, size=10)
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assert arr.shape == (10,)
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assert len(arr[0]) == 5
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def test_rands_array_2d():
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arr = tm.rands_array(7, size=(10, 10))
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assert arr.shape == (10, 10)
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assert len(arr[1, 1]) == 7
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def test_numpy_err_state_is_default():
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expected = {"over": "warn", "divide": "warn", "invalid": "warn", "under": "ignore"}
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import numpy as np
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# The error state should be unchanged after that import.
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assert np.geterr() == expected
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def test_convert_rows_list_to_csv_str():
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rows_list = ["aaa", "bbb", "ccc"]
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ret = tm.convert_rows_list_to_csv_str(rows_list)
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if compat.is_platform_windows():
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expected = "aaa\r\nbbb\r\nccc\r\n"
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else:
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expected = "aaa\nbbb\nccc\n"
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assert ret == expected
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def test_create_temp_directory():
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with tm.ensure_clean_dir() as path:
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assert os.path.exists(path)
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assert os.path.isdir(path)
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assert not os.path.exists(path)
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@pytest.mark.parametrize("strict_data_files", [True, False])
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def test_datapath_missing(datapath):
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with pytest.raises(ValueError, match="Could not find file"):
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datapath("not_a_file")
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def test_datapath(datapath):
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args = ("io", "data", "csv", "iris.csv")
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result = datapath(*args)
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expected = os.path.join(os.path.dirname(os.path.dirname(__file__)), *args)
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assert result == expected
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def test_rng_context():
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import numpy as np
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expected0 = 1.764052345967664
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expected1 = 1.6243453636632417
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with tm.RNGContext(0):
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with tm.RNGContext(1):
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assert np.random.randn() == expected1
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assert np.random.randn() == expected0
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def test_external_error_raised():
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with tm.external_error_raised(TypeError):
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raise TypeError("Should not check this error message, so it will pass")
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