Files
textual/tests/test_dom.py
darrenburns df37a9b90a Add get_child_by_id and get_widget_by_id (#1146)
* Add get_child_by_id and get_widget_by_id

* Remove redundant code

* Add unit tests for app-level get_child_by_id and get_widget_by_id

* Remove redundant test fixture injection

* Update CHANGELOG

* Enforce uniqueness of ID amongst widget children

* Enforce unique widget IDs amongst widgets mounted together

* Update CHANGELOG.md

* Ensuring unique IDs in a more logical place

* Add docstring to NodeList._get_by_id

* Dont use duplicate IDs in tests, dont mount 2000 widgets

* Mounting less widgets in a unit test

* Reword error message

* Use lower-level depth first search in get_widget_by_id to break out early
2022-11-16 15:29:59 +00:00

108 lines
2.5 KiB
Python

import pytest
from textual.css.errors import StyleValueError
from textual.dom import DOMNode, BadIdentifier
def test_display_default():
node = DOMNode()
assert node.display is True
@pytest.mark.parametrize(
"setter_value,style_value",
[[True, "block"], [False, "none"], ["block", "block"], ["none", "none"]],
)
def test_display_set_bool(setter_value, style_value):
node = DOMNode()
node.display = setter_value
assert node.styles.display == style_value
def test_display_set_invalid_value():
node = DOMNode()
with pytest.raises(StyleValueError):
node.display = "blah"
def test_validate():
with pytest.raises(BadIdentifier):
DOMNode(id="23")
with pytest.raises(BadIdentifier):
DOMNode(id=".3")
with pytest.raises(BadIdentifier):
DOMNode(classes="+2323")
with pytest.raises(BadIdentifier):
DOMNode(classes="foo 22")
node = DOMNode()
node.add_class("foo")
with pytest.raises(BadIdentifier):
node.add_class("1")
with pytest.raises(BadIdentifier):
node.remove_class("1")
with pytest.raises(BadIdentifier):
node.toggle_class("1")
@pytest.fixture
def search():
"""
a
/ \
b c
/ / \
d e f
"""
a = DOMNode(id="a")
b = DOMNode(id="b")
c = DOMNode(id="c")
d = DOMNode(id="d")
e = DOMNode(id="e")
f = DOMNode(id="f")
a._add_child(b)
a._add_child(c)
b._add_child(d)
c._add_child(e)
c._add_child(f)
yield a
def test_walk_children_depth(search):
children = [
node.id for node in search.walk_children(method="depth", with_self=False)
]
assert children == ["b", "d", "c", "e", "f"]
def test_walk_children_with_self_depth(search):
children = [
node.id for node in search.walk_children(method="depth", with_self=True)
]
assert children == ["a", "b", "d", "c", "e", "f"]
def test_walk_children_breadth(search):
children = [
node.id for node in search.walk_children(with_self=False, method="breadth")
]
print(children)
assert children == ["b", "c", "d", "e", "f"]
def test_walk_children_with_self_breadth(search):
children = [
node.id for node in search.walk_children(with_self=True, method="breadth")
]
print(children)
assert children == ["a", "b", "c", "d", "e", "f"]
children = [
node.id
for node in search.walk_children(with_self=True, method="breadth", reverse=True)
]
assert children == ["f", "e", "d", "c", "b", "a"]