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import re
import pytest
from textual.app import App, ComposeResult
from textual.widgets import Input
from textual.widgets._input import _RESTRICT_TYPES
def test_input_number_type():
"""Test number type regex, value should be number or the prefix of a valid number"""
number = _RESTRICT_TYPES["number"]
assert re.fullmatch(number, "0")
assert re.fullmatch(number, "0.")
assert re.fullmatch(number, ".")
assert re.fullmatch(number, "-")
assert re.fullmatch(number, "+")
assert re.fullmatch(number, ".0")
assert re.fullmatch(number, "1.1")
assert re.fullmatch(number, "1_")
assert re.fullmatch(number, "1_2")
assert re.fullmatch(number, "-000_123_456.78e01_234")
assert re.fullmatch(number, "1e1")
assert re.fullmatch(number, "1")
assert re.fullmatch(number, "1.")
assert re.fullmatch(number, "1.2")
assert re.fullmatch(number, "1.2e")
assert re.fullmatch(number, "1.2e-")
assert re.fullmatch(number, "1.2e-1")
assert re.fullmatch(number, "1.2e-10")
assert re.fullmatch(number, "1.2E10")
assert not re.fullmatch(number, "1.2e10e")
assert not re.fullmatch(number, "-000_123_456.78e01_234.")
assert not re.fullmatch(number, "e") # float("e23") is not valid
assert not re.fullmatch(number, "1f2")
assert not re.fullmatch(number, "inf")
assert not re.fullmatch(number, "nan")
assert not re.fullmatch(number, "-inf")
def test_input_integer_type():
"""Test input type regex"""
integer = _RESTRICT_TYPES["integer"]
assert re.fullmatch(integer, "0")
assert re.fullmatch(integer, "1")
assert re.fullmatch(integer, "10")
assert re.fullmatch(integer, "123456789")
assert re.fullmatch(integer, "-")
assert re.fullmatch(integer, "+")
assert re.fullmatch(integer, "-1")
assert re.fullmatch(integer, "+2")
assert re.fullmatch(integer, "+0")
assert re.fullmatch(integer, "+0_")
assert re.fullmatch(integer, "+0_1")
assert re.fullmatch(integer, "+0_12")
assert re.fullmatch(integer, "+0_123")
assert not re.fullmatch(integer, "+_123")
assert not re.fullmatch(integer, "123.")
assert not re.fullmatch(integer, "+2e")
assert not re.fullmatch(integer, "foo")
async def test_bad_type():
"""Check an invalid type raises a ValueError."""
class InputApp(App):
def compose(self) -> ComposeResult:
yield Input(type="foo") # Bad type
app = InputApp()
with pytest.raises(ValueError):
async with app.run_test():
pass
async def test_max_length():
"""Check max_length limits characters."""
class InputApp(App):
AUTO_FOCUS = "Input"
def compose(self) -> ComposeResult:
yield Input(max_length=5)
async with InputApp().run_test() as pilot:
input_widget = pilot.app.query_one(Input)
await pilot.press("1")
assert input_widget.value == "1"
await pilot.press("2", "3", "4", "5")
assert input_widget.value == "12345"
# Value is max length, no more characters are permitted
await pilot.press("6")
assert input_widget.value == "12345"
await pilot.press("7")
assert input_widget.value == "12345"
# Backspace is ok
await pilot.press("backspace")
assert input_widget.value == "1234"
await pilot.press("0")
assert input_widget.value == "12340"
# Back to maximum
await pilot.press("1")
assert input_widget.value == "12340"
async def test_restrict():
"""Test restriction by regex."""
class InputApp(App):
AUTO_FOCUS = "Input"
def compose(self) -> ComposeResult:
yield Input(restrict="[abc]*")
async with InputApp().run_test() as pilot:
input_widget = pilot.app.query_one(Input)
await pilot.press("a")
assert input_widget.value == "a"
await pilot.press("b")
assert input_widget.value == "ab"
await pilot.press("c")
assert input_widget.value == "abc"
# "d" is restricted
await pilot.press("d")
assert input_widget.value == "abc"
# "a" is not
await pilot.press("a")
assert input_widget.value == "abca"
async def test_restrict_type():
class InputApp(App):
def compose(self) -> ComposeResult:
yield Input(type="integer", id="integer")
yield Input(type="number", id="number")
yield Input(type="text", id="text")
async with InputApp().run_test() as pilot:
integer_input = pilot.app.query_one("#integer", Input)
number_input = pilot.app.query_one("#number", Input)
text_input = pilot.app.query_one("#text", Input)
integer_input.focus()
await pilot.press("a")
assert not integer_input.value
await pilot.press("-")
assert integer_input.value == "-"
assert integer_input.is_valid is False
await pilot.press("1")
assert integer_input.value == "-1"
assert integer_input.is_valid is True
number_input.focus()
await pilot.press("x")
assert number_input.value == ""
await pilot.press("-", "3", ".", "1", "4", "y")
assert number_input.value == "-3.14"
text_input.focus()
await pilot.press("!", "x", "9")
assert text_input.value == "!x9"
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