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import pytest
from pytest import approx
from rich.console import Console
from rich.text import Text
from textual.app import App
from textual.color import Gradient
from textual.css.query import NoMatches
from textual.renderables.bar import _apply_gradient
from textual.widget import Widget
from textual.widgets import ProgressBar
def test_initial_status():
pb = ProgressBar()
assert pb.total is None
assert pb.progress == 0
assert pb.percentage is None
pb = ProgressBar(total=100)
assert pb.total == 100
assert pb.progress == 0
assert pb.percentage == 0
def test_advance():
pb = ProgressBar(total=100)
pb.advance(10)
assert pb.progress == 10
assert pb.percentage == approx(0.1)
pb.advance(42)
assert pb.progress == 52
assert pb.percentage == approx(0.52)
pb.advance(0.0625)
assert pb.progress == 52.0625
assert pb.percentage == approx(0.520625)
def test_advance_backwards():
pb = ProgressBar(total=100)
pb.progress = 50
pb.advance(-10)
assert pb.progress == 40
def test_progress_overflow():
pb = ProgressBar(total=100)
pb.advance(999_999)
assert pb.percentage == 1
pb.update(total=50)
assert pb.percentage == 1
def test_progress_underflow():
pb = ProgressBar(total=100)
pb.advance(-999_999)
assert pb.percentage == 0
def test_non_negative_total():
pb = ProgressBar(total=-100)
assert pb.total == 0
def test_update_total():
pb = ProgressBar()
pb.update(total=100)
assert pb.total == 100
pb.update(total=1000)
assert pb.total == 1000
pb.update(total=None)
assert pb.total is None
pb.update(total=100)
assert pb.total == 100
def test_update_progress():
pb = ProgressBar(total=100)
pb.update(progress=10)
assert pb.progress == 10
pb.update(progress=73)
assert pb.progress == 73
pb.update(progress=40)
assert pb.progress == 40
def test_update_advance():
pb = ProgressBar(total=100)
pb.update(advance=10)
assert pb.progress == 10
pb.update(advance=10)
assert pb.progress == 20
pb.update(advance=10)
assert pb.progress == 30
def test_update():
pb = ProgressBar()
pb.update(total=100, progress=30, advance=20)
assert pb.total == 100
assert pb.progress == 50
def test_go_back_to_indeterminate():
pb = ProgressBar()
pb.total = 100
assert pb.percentage == 0
pb.total = None
assert pb.percentage is None
@pytest.mark.parametrize(
["show_bar", "show_percentage", "show_eta"],
[
(True, True, True),
(True, True, False),
(True, False, True),
(True, False, False),
(False, True, True),
(False, True, False),
(False, False, True),
(False, False, False),
],
)
async def test_show_sub_widgets(show_bar: bool, show_percentage: bool, show_eta: bool):
class PBApp(App[None]):
def compose(self):
self.pb = ProgressBar(
show_bar=show_bar, show_percentage=show_percentage, show_eta=show_eta
)
yield self.pb
app = PBApp()
async with app.run_test():
if show_bar:
bar = app.pb.query_one("#bar")
assert isinstance(bar, Widget)
else:
with pytest.raises(NoMatches):
app.pb.query_one("#bar")
if show_percentage:
percentage = app.pb.query_one("#percentage")
assert isinstance(percentage, Widget)
else:
with pytest.raises(NoMatches):
app.pb.query_one("#percentage")
if show_eta:
eta = app.pb.query_one("#eta")
assert isinstance(eta, Widget)
else:
with pytest.raises(NoMatches):
app.pb.query_one("#eta")
def test_apply_gradient():
text = Text("foo")
gradient = Gradient.from_colors("red", "blue")
_apply_gradient(text, gradient, 1)
console = Console()
assert text.get_style_at_offset(console, 0).color.triplet == (255, 0, 0)
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