scrapy/tests/test_utils_display.py

106 lines
2.9 KiB
Python

from __future__ import annotations
import builtins
from io import StringIO
from typing import TYPE_CHECKING
from unittest import mock
from scrapy.utils.display import pformat, pprint
if TYPE_CHECKING:
from collections.abc import Mapping, Sequence
from types import ModuleType
value = {"a": 1}
colorized_strings = {
(
(
"{\x1b[33m'\x1b[39;49;00m\x1b[33ma\x1b[39;49;00m\x1b[33m'"
"\x1b[39;49;00m: \x1b[34m1\x1b[39;49;00m}"
)
+ suffix
)
for suffix in (
# https://github.com/pygments/pygments/issues/2313
"\n", # pygments ≤ 2.13
"\x1b[37m\x1b[39;49;00m\n", # pygments ≥ 2.14
)
}
plain_string = "{'a': 1}"
@mock.patch("sys.platform", "linux")
@mock.patch("sys.stdout.isatty")
def test_pformat(isatty):
isatty.return_value = True
assert pformat(value) in colorized_strings
@mock.patch("sys.stdout.isatty")
def test_pformat_dont_colorize(isatty):
isatty.return_value = True
assert pformat(value, colorize=False) == plain_string
def test_pformat_not_tty():
assert pformat(value) == plain_string
@mock.patch("sys.platform", "win32")
@mock.patch("platform.version")
@mock.patch("sys.stdout.isatty")
def test_pformat_old_windows(isatty, version):
isatty.return_value = True
version.return_value = "10.0.14392"
assert pformat(value) in colorized_strings
@mock.patch("sys.platform", "win32")
@mock.patch("scrapy.utils.display._enable_windows_terminal_processing")
@mock.patch("platform.version")
@mock.patch("sys.stdout.isatty")
def test_pformat_windows_no_terminal_processing(isatty, version, terminal_processing):
isatty.return_value = True
version.return_value = "10.0.14393"
terminal_processing.return_value = False
assert pformat(value) == plain_string
@mock.patch("sys.platform", "win32")
@mock.patch("scrapy.utils.display._enable_windows_terminal_processing")
@mock.patch("platform.version")
@mock.patch("sys.stdout.isatty")
def test_pformat_windows(isatty, version, terminal_processing):
isatty.return_value = True
version.return_value = "10.0.14393"
terminal_processing.return_value = True
assert pformat(value) in colorized_strings
@mock.patch("sys.platform", "linux")
@mock.patch("sys.stdout.isatty")
def test_pformat_no_pygments(isatty):
isatty.return_value = True
real_import = builtins.__import__
def mock_import(
name: str,
globals_: Mapping[str, object] | None = None,
locals_: Mapping[str, object] | None = None,
fromlist: Sequence[str] | None = (),
level: int = 0,
) -> ModuleType:
if "pygments" in name:
raise ImportError
return real_import(name, globals_, locals_, fromlist, level)
with mock.patch("builtins.__import__", mock_import):
assert pformat(value) == plain_string
def test_pprint():
with mock.patch("sys.stdout", new=StringIO()) as mock_out:
pprint(value)
assert mock_out.getvalue() == "{'a': 1}\n"