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from textwrap import dedent import pytest from pandas import ( DataFrame, Series, ) pytest.importorskip("jinja2") from pandas.io.formats.style import Styler @pytest.fixture def df(): return DataFrame( {"A": [0, 1], "B": [-0.61, -1.22], "C": Series(["ab", "cd"], dtype=object)} ) @pytest.fixture def styler(df): return Styler(df, uuid_len=0, precision=2) def test_basic_string(styler): result = styler.to_string() expected = dedent( """\ A B C 0 0 -0.61 ab 1 1 -1.22 cd """ ) assert result == expected def test_string_delimiter(styler): result = styler.to_string(delimiter=";") expected = dedent( """\ ;A;B;C 0;0;-0.61;ab 1;1;-1.22;cd """ ) assert result == expected def test_concat(styler): result = styler.concat(styler.data.agg(["sum"]).style).to_string() expected = dedent( """\ A B C 0 0 -0.61 ab 1 1 -1.22 cd sum 1 -1.830000 abcd """ ) assert result == expected def test_concat_recursion(styler): df = styler.data styler1 = styler styler2 = Styler(df.agg(["sum"]), uuid_len=0, precision=3) styler3 = Styler(df.agg(["sum"]), uuid_len=0, precision=4) result = styler1.concat(styler2.concat(styler3)).to_string() expected = dedent( """\ A B C 0 0 -0.61 ab 1 1 -1.22 cd sum 1 -1.830 abcd sum 1 -1.8300 abcd """ ) assert result == expected def test_concat_chain(styler): df = styler.data styler1 = styler styler2 = Styler(df.agg(["sum"]), uuid_len=0, precision=3) styler3 = Styler(df.agg(["sum"]), uuid_len=0, precision=4) result = styler1.concat(styler2).concat(styler3).to_string() expected = dedent( """\ A B C 0 0 -0.61 ab 1 1 -1.22 cd sum 1 -1.830 abcd sum 1 -1.8300 abcd """ ) assert result == expected
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