def test_create_hunk_lines_empty_body_do_not_check_eof(self, prefix, linesep):
"""Expect no lines when provided a completely empty file."""
lines, eof_has_no_new_line = helpers.create_hunk_lines(
body="", prefix=prefix, check_eof=False
)
assert lines == []
assert eof_has_no_new_line is None
def test_create_hunk_lines_empty_body_check_eof(self, prefix, linesep):
"""Expect "no newline message" when provided a completely empty file."""
lines, eof_had_no_newline = helpers.create_hunk_lines(body="",
prefix=prefix,
check_eof=True)
assert lines == [
f"\\ No newline at end of file\n",
]
assert eof_had_no_newline
def test_create_hunk_lines_no_newline_eof_do_not_check_eof(self, prefix, linesep):
"""Expect a list of two lines, the last line having no line separator."""
lines, eof_had_no_newline = helpers.create_hunk_lines(
body=f"hello{linesep}world", prefix=prefix, check_eof=False
)
assert lines == [
f"{prefix}hello{linesep}",
f"{prefix}world",
]
assert eof_had_no_newline is None
def test_create_hunk_lines_empty_line_check_eof(self, prefix, linesep):
"""Expect a prefixed line to be returned, and the EOF check to pass.
NOTE: Though this functionality is currently implemented, it does not match
what Mercurial does with new, empty files that do not have any content. In those
cases, Mercurial does not provide any hunks at all regardless if a newline
characters exists or does not exist at the end of the file.
"""
lines, eof_had_no_newline = helpers.create_hunk_lines(
body=f"{linesep}", prefix=prefix, check_eof=True)
assert lines == [f"{prefix}{linesep}"]
assert not eof_had_no_newline
def test_create_hunk_lines_no_newline_eof_check_eof(self, prefix, linesep):
"""Expect a list of three lines, all having line separators.
NOTE: The last message is appended as an extra line, to match with what
Mercurial outputs when showing diffs.
"""
lines, eof_had_no_newline = helpers.create_hunk_lines(
body=f"hello{linesep}world", prefix=prefix, check_eof=True)
assert lines == [
f"{prefix}hello{linesep}",
f"{prefix}world\n",
f"\\ No newline at end of file\n",
]
assert eof_had_no_newline
def test_create_hunk_lines_disallowed_prefix(self, prefix, linesep):
"""Expect an exception to be raised when a disallowed prefix is provided"""
with pytest.raises(ValueError):
helpers.create_hunk_lines("hello world", "*")
