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from textual.app import App, ComposeResult
from textual.color import Color
from textual.widget import Widget
class Base(Widget):
DEFAULT_CSS = """
Base {
color: magenta;
}
"""
class CustomWidget1(Base):
DEFAULT_CSS = """
CustomWidget1 {
background: red
}
"""
class CustomWidget2(CustomWidget1):
DEFAULT_CSS = """
CustomWidget2 {
background: initial;
}
"""
class CustomWidget3(CustomWidget2):
pass
async def test_initial_default():
class InitialApp(App):
def compose(self) -> ComposeResult:
yield Base(id="base")
yield CustomWidget1(id="custom1")
yield CustomWidget2(id="custom2")
app = InitialApp()
async with app.run_test():
base = app.query_one("#base", Base)
custom1 = app.query_one("#custom1", CustomWidget1)
custom2 = app.query_one("#custom2", CustomWidget2)
# No background set on base
default_background = base.styles.background
assert default_background == Color.parse("rgba(0,0,0,0)")
# Customized background value, should be red
assert custom1.styles.background == Color.parse("red")
# Background has default value
assert custom2.styles.background == default_background
async def test_initial():
class InitialApp(App):
CSS = """
CustomWidget1 {
color: red;
}
CustomWidget2 {
color: initial;
}
CustomWidget3 {
color: blue;
}
"""
def compose(self) -> ComposeResult:
yield Base(id="base")
yield CustomWidget1(id="custom1")
yield CustomWidget2(id="custom2")
yield CustomWidget3(id="custom3")
app = InitialApp()
async with app.run_test():
base = app.query_one("#base")
custom1 = app.query_one("#custom1")
custom2 = app.query_one("#custom2")
custom3 = app.query_one("#custom3")
# Default color
assert base.styles.color == Color.parse("magenta")
# Explicitly set to red
assert custom1.styles.color == Color.parse("red")
# Set to initial, should be same as base
assert custom2.styles.color == Color.parse("magenta")
# Set to blue
assert custom3.styles.color == Color.parse("blue")
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