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from textwrap import dedent
import pytest
import pandas.util._test_decorators as td
from pandas import (
DataFrame,
Series,
)
td.versioned_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
|
