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|
import pytest
from textual.app import App, ComposeResult
from textual.widgets import TextArea
from textual.widgets.text_area import Selection
TEXT = """I must not fear.
Fear is the mind-killer.
Fear is the little-death that brings total obliteration.
I will face my fear.
"""
class TextAreaApp(App):
def compose(self) -> ComposeResult:
text_area = TextArea()
text_area.load_text(TEXT)
yield text_area
async def test_default_selection():
"""The cursor starts at (0, 0) in the document."""
app = TextAreaApp()
async with app.run_test():
text_area = app.query_one(TextArea)
assert text_area.selection == Selection.cursor((0, 0))
async def test_cursor_location_get():
app = TextAreaApp()
async with app.run_test():
text_area = app.query_one(TextArea)
text_area.selection = Selection((1, 1), (2, 2))
assert text_area.cursor_location == (2, 2)
async def test_cursor_location_set():
app = TextAreaApp()
async with app.run_test():
text_area = app.query_one(TextArea)
target = (1, 2)
text_area.cursor_location = target
assert text_area.selection == Selection.cursor(target)
async def test_cursor_location_set_while_selecting():
"""If you set the cursor_location while a selection is in progress,
the start/anchor point of the selection will remain where it is."""
app = TextAreaApp()
async with app.run_test():
text_area = app.query_one(TextArea)
text_area.selection = Selection((0, 0), (0, 2))
target = (1, 2)
text_area.cursor_location = target
assert text_area.selection == Selection((0, 0), target)
async def test_move_cursor_select():
app = TextAreaApp()
async with app.run_test():
text_area = app.query_one(TextArea)
text_area.selection = Selection((1, 1), (2, 2))
text_area.move_cursor((2, 3), select=True)
assert text_area.selection == Selection((1, 1), (2, 3))
async def test_move_cursor_relative():
app = TextAreaApp()
async with app.run_test():
text_area = app.query_one(TextArea)
text_area.move_cursor_relative(rows=1, columns=2)
assert text_area.selection == Selection.cursor((1, 2))
text_area.move_cursor_relative(rows=-1, columns=-2)
assert text_area.selection == Selection.cursor((0, 0))
text_area.move_cursor_relative(rows=1000, columns=1000)
assert text_area.selection == Selection.cursor((4, 0))
async def test_selected_text_forward():
"""Selecting text from top to bottom results in the correct selected_text."""
app = TextAreaApp()
async with app.run_test():
text_area = app.query_one(TextArea)
text_area.selection = Selection((0, 0), (2, 0))
assert (
text_area.selected_text
== """\
I must not fear.
Fear is the mind-killer.
"""
)
async def test_selected_text_backward():
"""Selecting text from bottom to top results in the correct selected_text."""
app = TextAreaApp()
async with app.run_test():
text_area = app.query_one(TextArea)
text_area.selection = Selection((2, 0), (0, 0))
assert (
text_area.selected_text
== """\
I must not fear.
Fear is the mind-killer.
"""
)
async def test_selected_text_multibyte():
app = TextAreaApp()
async with app.run_test():
text_area = app.query_one(TextArea)
text_area.load_text("こんにちは")
text_area.selection = Selection((0, 1), (0, 3))
assert text_area.selected_text == "んに"
async def test_selection_clamp():
"""When you set the selection reactive, it's clamped to within the document bounds."""
app = TextAreaApp()
async with app.run_test():
text_area = app.query_one(TextArea)
text_area.selection = Selection((99, 99), (100, 100))
assert text_area.selection == Selection(start=(4, 0), end=(4, 0))
@pytest.mark.parametrize(
"start,end",
[
((0, 0), (0, 0)),
((0, 4), (0, 3)),
((1, 0), (0, 16)),
],
)
async def test_get_cursor_left_location(start, end):
app = TextAreaApp()
async with app.run_test():
text_area = app.query_one(TextArea)
text_area.move_cursor(start)
assert text_area.get_cursor_left_location() == end
@pytest.mark.parametrize(
"start,end",
[
((0, 0), (0, 1)),
((0, 16), (1, 0)),
((3, 20), (4, 0)),
((4, 0), (4, 0)),
],
)
async def test_get_cursor_right_location(start, end):
app = TextAreaApp()
async with app.run_test():
text_area = app.query_one(TextArea)
text_area.move_cursor(start)
assert text_area.get_cursor_right_location() == end
@pytest.mark.parametrize(
"start,end",
[
((0, 4), (0, 0)), # jump to start
((1, 2), (0, 2)), # go to column above
((2, 56), (1, 24)), # snap to end of row above
],
)
async def test_get_cursor_up_location(start, end):
app = TextAreaApp()
async with app.run_test():
text_area = app.query_one(TextArea)
text_area.move_cursor(start)
# This is required otherwise the cursor will snap back to the
# last location navigated to (0, 0)
text_area.record_cursor_width()
assert text_area.get_cursor_up_location() == end
@pytest.mark.parametrize(
"start,end",
[
((3, 4), (4, 0)), # jump to end
((1, 2), (2, 2)), # go to column above
((2, 56), (3, 20)), # snap to end of row below
],
)
async def test_get_cursor_down_location(start, end):
app = TextAreaApp()
async with app.run_test():
text_area = app.query_one(TextArea)
text_area.move_cursor(start)
# This is required otherwise the cursor will snap back to the
# last location navigated to (0, 0)
text_area.record_cursor_width()
assert text_area.get_cursor_down_location() == end
@pytest.mark.parametrize(
"start,end",
[
((0, 0), (0, 0)),
((0, 1), (0, 0)),
((0, 2), (0, 0)),
((0, 3), (0, 0)),
((0, 4), (0, 3)),
((0, 5), (0, 3)),
((0, 6), (0, 3)),
((0, 7), (0, 3)),
((0, 10), (0, 7)),
((1, 0), (0, 10)),
((1, 2), (1, 0)),
((1, 4), (1, 0)),
((1, 7), (1, 4)),
((1, 8), (1, 7)),
((1, 13), (1, 11)),
((1, 14), (1, 11)),
],
)
async def test_cursor_word_left_location(start, end):
app = TextAreaApp()
async with app.run_test():
text_area = app.query_one(TextArea)
text_area.load_text("AB CD EFG\n HI\tJK LM ")
text_area.move_cursor(start)
assert text_area.get_cursor_word_left_location() == end
@pytest.mark.parametrize(
"start,end",
[
((0, 0), (0, 2)),
((0, 1), (0, 2)),
((0, 2), (0, 5)),
((0, 3), (0, 5)),
((0, 4), (0, 5)),
((0, 5), (0, 10)),
((0, 6), (0, 10)),
((0, 7), (0, 10)),
((0, 10), (1, 0)),
((1, 0), (1, 6)),
((1, 2), (1, 6)),
((1, 4), (1, 6)),
((1, 7), (1, 9)),
((1, 8), (1, 9)),
((1, 13), (1, 14)),
((1, 14), (1, 14)),
],
)
async def test_cursor_word_right_location(start, end):
app = TextAreaApp()
async with app.run_test():
text_area = app.query_one(TextArea)
text_area.load_text("AB CD EFG\n HI\tJK LM ")
text_area.move_cursor(start)
assert text_area.get_cursor_word_right_location() == end
@pytest.mark.parametrize(
"content,expected_selection",
[
("123\n456\n789", Selection((0, 0), (2, 3))),
("123\n456\n789\n", Selection((0, 0), (3, 0))),
("", Selection((0, 0), (0, 0))),
],
)
async def test_select_all(content, expected_selection):
app = TextAreaApp()
async with app.run_test():
text_area = app.query_one(TextArea)
text_area.load_text(content)
text_area.select_all()
assert text_area.selection == expected_selection
@pytest.mark.parametrize(
"index,content,expected_selection",
[
(1, "123\n456\n789\n", Selection((1, 0), (1, 3))),
(2, "123\n456\n789\n", Selection((2, 0), (2, 3))),
(3, "123\n456\n789\n", Selection((3, 0), (3, 0))),
(1000, "123\n456\n789\n", Selection.cursor((0, 0))),
(0, "", Selection((0, 0), (0, 0))),
],
)
async def test_select_line(index, content, expected_selection):
app = TextAreaApp()
async with app.run_test():
text_area = app.query_one(TextArea)
text_area.load_text(content)
text_area.select_line(index)
assert text_area.selection == expected_selection
async def test_cursor_screen_offset_and_terminal_cursor_position_update():
class TextAreaCursorScreenOffset(App):
def compose(self) -> ComposeResult:
yield TextArea.code_editor("abc\ndef")
app = TextAreaCursorScreenOffset()
async with app.run_test():
text_area = app.query_one(TextArea)
assert app.cursor_position == (5, 1)
text_area.cursor_location = (1, 1)
assert text_area.cursor_screen_offset == (6, 2)
# Also ensure that this update has been reported back to the app
# for the benefit of IME/emoji popups.
assert app.cursor_position == (6, 2)
async def test_cursor_screen_offset_and_terminal_cursor_position_scrolling():
class TextAreaCursorScreenOffset(App):
def compose(self) -> ComposeResult:
yield TextArea.code_editor("AB\nAB\nAB\nAB\nAB\nAB\n")
app = TextAreaCursorScreenOffset()
async with app.run_test(size=(80, 2)) as pilot:
text_area = app.query_one(TextArea)
assert app.cursor_position == (5, 1)
text_area.cursor_location = (5, 0)
await pilot.pause()
assert text_area.cursor_screen_offset == (5, 1)
assert app.cursor_position == (5, 1)
async def test_mouse_selection_with_tab_characters():
"""Regression test for https://github.com/Textualize/textual/issues/5212"""
class TextAreaTabsApp(App):
def compose(self) -> ComposeResult:
yield TextArea(soft_wrap=False, text="\t\t")
app = TextAreaTabsApp()
async with app.run_test() as pilot:
text_area = pilot.app.query_one(TextArea)
expected_selection = Selection((0, 0), (0, 0))
assert text_area.selection == expected_selection
await pilot.mouse_down(text_area, offset=(2, 1))
await pilot.hover(text_area, offset=(3, 1))
assert text_area.selection == expected_selection
|
