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import pytest
from textual.widgets.text_area import Document, EditResult
TEXT = """I must not fear.
Fear is the mind-killer.
I forgot the rest of the quote.
Sorry Will."""
@pytest.fixture
def document():
document = Document(TEXT)
return document
def test_delete_single_character(document):
replace_result = document.replace_range((0, 0), (0, 1), "")
assert replace_result == EditResult(end_location=(0, 0), replaced_text="I")
assert document.lines == [
" must not fear.",
"Fear is the mind-killer.",
"I forgot the rest of the quote.",
"Sorry Will.",
]
def test_delete_single_newline(document):
"""Testing deleting newline from right to left"""
replace_result = document.replace_range((1, 0), (0, 16), "")
assert replace_result == EditResult(end_location=(0, 16), replaced_text="\n")
assert document.lines == [
"I must not fear.Fear is the mind-killer.",
"I forgot the rest of the quote.",
"Sorry Will.",
]
def test_delete_near_end_of_document(document):
"""Test deleting a range near the end of a document."""
replace_result = document.replace_range((1, 0), (3, 11), "")
assert replace_result == EditResult(
end_location=(1, 0),
replaced_text="Fear is the mind-killer.\n"
"I forgot the rest of the quote.\n"
"Sorry Will.",
)
assert document.lines == [
"I must not fear.",
"",
]
def test_delete_clearing_the_document(document):
replace_result = document.replace_range((0, 0), (4, 0), "")
assert replace_result == EditResult(
end_location=(0, 0),
replaced_text=TEXT,
)
assert document.lines == [""]
def test_delete_multiple_characters_on_one_line(document):
replace_result = document.replace_range((0, 2), (0, 7), "")
assert replace_result == EditResult(
end_location=(0, 2),
replaced_text="must ",
)
assert document.lines == [
"I not fear.",
"Fear is the mind-killer.",
"I forgot the rest of the quote.",
"Sorry Will.",
]
def test_delete_multiple_lines_partially_spanned(document):
"""Deleting a selection that partially spans the first and final lines of the selection."""
replace_result = document.replace_range((0, 2), (2, 2), "")
assert replace_result == EditResult(
end_location=(0, 2),
replaced_text="must not fear.\nFear is the mind-killer.\nI ",
)
assert document.lines == [
"I forgot the rest of the quote.",
"Sorry Will.",
]
def test_delete_end_of_line(document):
"""Testing deleting newline from left to right"""
replace_result = document.replace_range((0, 16), (1, 0), "")
assert replace_result == EditResult(
end_location=(0, 16),
replaced_text="\n",
)
assert document.lines == [
"I must not fear.Fear is the mind-killer.",
"I forgot the rest of the quote.",
"Sorry Will.",
]
def test_delete_single_line_excluding_newline(document):
"""Delete from the start to the end of the line."""
replace_result = document.replace_range((2, 0), (2, 31), "")
assert replace_result == EditResult(
end_location=(2, 0),
replaced_text="I forgot the rest of the quote.",
)
assert document.lines == [
"I must not fear.",
"Fear is the mind-killer.",
"",
"Sorry Will.",
]
def test_delete_single_line_including_newline(document):
"""Delete from the start of a line to the start of the line below."""
replace_result = document.replace_range((2, 0), (3, 0), "")
assert replace_result == EditResult(
end_location=(2, 0),
replaced_text="I forgot the rest of the quote.\n",
)
assert document.lines == [
"I must not fear.",
"Fear is the mind-killer.",
"Sorry Will.",
]
TEXT_NEWLINE_EOF = """\
I must not fear.
Fear is the mind-killer.
"""
def test_delete_end_of_file_newline():
document = Document(TEXT_NEWLINE_EOF)
replace_result = document.replace_range((2, 0), (1, 24), "")
assert replace_result == EditResult(end_location=(1, 24), replaced_text="\n")
assert document.lines == [
"I must not fear.",
"Fear is the mind-killer.",
]
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