def test_class_name_swapped():
"""Test that class_name is swapped properly."""
val = render(_.div(class_name="myclass"))
assert val == '<div class="myclass"></div>'
val = render(_.p("Some Text", class_name="myclass"))
assert val == '<p class="myclass">Some Text</p>'
def test_render_boolean():
"""Test the rendering of boolean attributes."""
val = render(_.input(type="checkbox", checked=True))
assert val == '<input type="checkbox" checked>'
val = render(_.option("California", selected=True))
assert val == "<option selected>California</option>"
def test_render_data():
"""Test the rendering of data attributes."""
val = render(_.div(data_text="Some text!"))
assert val == '<div data-text="Some text!"></div>'
val = render(_.div(data_lots_of_dashes="value"))
assert val == '<div data-lots-of-dashes="value"></div>'
def test_render_numbers():
val = render(_.p(8))
assert val == "<p>8</p>"
val = render(_.p(8.8))
assert val == "<p>8.8</p>"
val = render(_.div(data_number=8))
assert val == '<div data-number="8"></div>'
def test_render_aria():
"""Test the rendering of aria attributes."""
val = render(_.button("Close", aria_label="Close"))
assert val == '<button aria-label="Close">Close</button>'
val = render(
_.button("Collapse", aria_expanded="false", aria_controls="collapsible-0")
)
assert (
val
== '<button aria-expanded="false" aria-controls="collapsible-0">Collapse</button>'
)
def test_orm_style_functions():
"""An ORM-like example of an element function."""
from typing import NamedTuple
class Article(NamedTuple):
"""Basically a fake database model."""
title: str
content: str
author: str
def html(self):
header = _.header(_.h1(self.title, class_name="article__header"))
content = _.section(_.p(self.content, class_name="article__content"))
byline = _.section(
_.p(_.i(f"By {self.author}"), class_name="article__byline")
)
return _.article(header, content, byline,)
article = Article(
title="Hello from DashML!",
content="Demo of ORM-style usage of DashML",
author="Madelyn Eriksen",
)
assert render(article.html())
assert (
article.html().xpath("//p[@class='article__content']")[0].text
== article.content
)
assert (
article.html().xpath("//h1[@class='article__header']")[0].text == article.title
)
assert (
article.html().xpath("//p[@class='article__byline']/i")[0].text
== "By Madelyn Eriksen"
)
def test_html_for_swapped():
"""Test that html_for is swapped."""
val = render(_.label(html_for="my-input"))
assert val == '<label for="my-input"></label>'
def test_render_script_fails():
"""Gratuitous test of the classic alert."""
value = render(_.p("<script>alert('Hello, world!')</script>"))
assert value == (
"<p><script>alert('Hello, world!')</script></p>")