Viewing file:  base_description.py (1.98 KB) -rw-r--r--
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from typing import Any, Iterable
from hamcrest.core.description import Description
from hamcrest.core.helpers.hasmethod import hasmethod
from hamcrest.core.helpers.ismock import ismock
__author__ = "Jon Reid"
__copyright__ = "Copyright 2011 hamcrest.org"
__license__ = "BSD, see License.txt"
class BaseDescription(Description):
"""Base class for all :py:class:`~hamcrest.core.description.Description`
implementations.
"""
def append_text(self, text: str) -> Description:
self.append(text)
return self
def append_description_of(self, value: Any) -> Description:
if not ismock(value) and hasmethod(value, "describe_to"):
value.describe_to(self)
elif isinstance(value, str):
self.append(repr(value))
else:
description = str(value)
if description[:1] == "<" and description[-1:] == ">":
self.append(description)
else:
self.append("<")
self.append(description)
self.append(">")
return self
def append_list(self, start: str, separator: str, end: str, list: Iterable[Any]) -> Description:
separate = False
self.append(start)
for item in list:
if separate:
self.append(separator)
self.append_description_of(item)
separate = True
self.append(end)
return self
def append(self, string: str) -> None:
"""Append the string to the description."""
raise NotImplementedError("append")
def append_string_in_python_syntax(self, string: str) -> None:
self.append("'")
for ch in string:
self.append(character_in_python_syntax(ch))
self.append("'")
def character_in_python_syntax(ch: str) -> str:
if ch == "'":
return "'"
elif ch == "\n":
return "\\n"
elif ch == "\r":
return "\\r"
elif ch == "\t":
return "\\t"
else:
return ch
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