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"""
Test the `print` function.
"""
from __future__ import annotations
import pytest
from prompt_toolkit import print_formatted_text as pt_print
from prompt_toolkit.formatted_text import HTML, FormattedText, to_formatted_text
from prompt_toolkit.output import ColorDepth
from prompt_toolkit.styles import Style
from prompt_toolkit.utils import is_windows
class _Capture:
"Emulate an stdout object."
def __init__(self):
self._data = []
def write(self, data):
self._data.append(data)
@property
def data(self):
return "".join(self._data)
def flush(self):
pass
def isatty(self):
return True
def fileno(self):
# File descriptor is not used for printing formatted text.
# (It is only needed for getting the terminal size.)
return -1
@pytest.mark.skipif(is_windows(), reason="Doesn't run on Windows yet.")
def test_print_formatted_text():
f = _Capture()
pt_print([("", "hello"), ("", "world")], file=f)
assert "hello" in f.data
assert "world" in f.data
@pytest.mark.skipif(is_windows(), reason="Doesn't run on Windows yet.")
def test_print_formatted_text_backslash_r():
f = _Capture()
pt_print("hello\r\n", file=f)
assert "hello" in f.data
@pytest.mark.skipif(is_windows(), reason="Doesn't run on Windows yet.")
def test_formatted_text_with_style():
f = _Capture()
style = Style.from_dict(
{
"hello": "#ff0066",
"world": "#44ff44 italic",
}
)
tokens = FormattedText(
[
("class:hello", "Hello "),
("class:world", "world"),
]
)
# NOTE: We pass the default (8bit) color depth, so that the unit tests
# don't start failing when environment variables change.
pt_print(tokens, style=style, file=f, color_depth=ColorDepth.DEFAULT)
assert "\x1b[0;38;5;197mHello" in f.data
assert "\x1b[0;38;5;83;3mworld" in f.data
@pytest.mark.skipif(is_windows(), reason="Doesn't run on Windows yet.")
def test_html_with_style():
"""
Text `print_formatted_text` with `HTML` wrapped in `to_formatted_text`.
"""
f = _Capture()
html = HTML("<ansigreen>hello</ansigreen> <b>world</b>")
formatted_text = to_formatted_text(html, style="class:myhtml")
pt_print(formatted_text, file=f, color_depth=ColorDepth.DEFAULT)
assert (
f.data
== "\x1b[0m\x1b[?7h\x1b[0;32mhello\x1b[0m \x1b[0;1mworld\x1b[0m\r\n\x1b[0m"
)
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