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from textual.widgets.text_area import Document
TEXT = """I must not fear.
Fear is the mind-killer."""
def test_insert_no_newlines():
document = Document(TEXT)
document.replace_range((0, 1), (0, 1), " really")
assert document.lines == [
"I really must not fear.",
"Fear is the mind-killer.",
]
def test_insert_empty_string():
document = Document(TEXT)
document.replace_range((0, 1), (0, 1), "")
assert document.lines == ["I must not fear.", "Fear is the mind-killer."]
def test_insert_invalid_column():
document = Document(TEXT)
document.replace_range((0, 999), (0, 999), " really")
assert document.lines == ["I must not fear. really", "Fear is the mind-killer."]
def test_insert_invalid_row_and_column():
document = Document(TEXT)
document.replace_range((999, 0), (999, 0), " really")
assert document.lines == ["I must not fear.", "Fear is the mind-killer.", " really"]
def test_insert_range_newline_file_start():
document = Document(TEXT)
document.replace_range((0, 0), (0, 0), "\n")
assert document.lines == ["", "I must not fear.", "Fear is the mind-killer."]
def test_insert_newline_splits_line():
document = Document(TEXT)
document.replace_range((0, 1), (0, 1), "\n")
assert document.lines == ["I", " must not fear.", "Fear is the mind-killer."]
def test_insert_newline_splits_line_selection():
document = Document(TEXT)
document.replace_range((0, 1), (0, 6), "\n")
assert document.lines == ["I", " not fear.", "Fear is the mind-killer."]
def test_insert_multiple_lines_ends_with_newline():
document = Document(TEXT)
document.replace_range((0, 1), (0, 1), "Hello,\nworld!\n")
assert document.lines == [
"IHello,",
"world!",
" must not fear.",
"Fear is the mind-killer.",
]
def test_insert_multiple_lines_ends_with_no_newline():
document = Document(TEXT)
document.replace_range((0, 1), (0, 1), "Hello,\nworld!")
assert document.lines == [
"IHello,",
"world! must not fear.",
"Fear is the mind-killer.",
]
def test_insert_multiple_lines_starts_with_newline():
document = Document(TEXT)
document.replace_range((0, 1), (0, 1), "\nHello,\nworld!\n")
assert document.lines == [
"I",
"Hello,",
"world!",
" must not fear.",
"Fear is the mind-killer.",
]
def test_insert_range_text_no_newlines():
"""Ensuring we can do a simple replacement of text."""
document = Document(TEXT)
document.replace_range((0, 2), (0, 6), "MUST")
assert document.lines == [
"I MUST not fear.",
"Fear is the mind-killer.",
]
TEXT_NEWLINE_EOF = """\
I must not fear.
Fear is the mind-killer.
"""
def test_newline_eof():
document = Document(TEXT_NEWLINE_EOF)
assert document.lines == [
"I must not fear.",
"Fear is the mind-killer.",
"",
]
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