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# -*- coding: utf-8 -*-
import pytest
from pyout.field import Field
from pyout.field import Nothing
from pyout.field import StyleProcessors
def test_field_base():
assert Field()("ok") == "ok "
assert Field(width=5, align="right")("ok") == " ok"
def test_field_update():
field = Field()
field.width = 2
assert field("ok") == "ok"
def test_field_processors():
def pre(_, result):
return result.upper()
def post1(_, result):
return "AAA" + result
def post2(_, result):
return result + "ZZZ"
field = Field(width=6, align="center",
default_keys=["some_key", "another_key"])
field.add("pre", "some_key", pre)
field.add("post", "another_key", *[post1, post2])
assert field("ok") == "AAA OK ZZZ"
with pytest.raises(ValueError):
field.add("not pre or post", "k")
with pytest.raises(ValueError):
field.add("pre", "not registered key")
@pytest.mark.parametrize("text",
["", "-", "…"],
ids=["text=''", "text='-'", "text='…'"])
def test_something_about_nothing(text):
nada = Nothing(text=text)
assert not nada
assert str(nada) == text
assert "{:5}".format(nada) == "{:5}".format(text)
assert "x" + nada == "x" + text
assert nada + "x" == text + "x"
def test_style_processor_render():
sp = StyleProcessors()
with pytest.raises(NotImplementedError):
sp.render("key", "value")
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