def test_cached_content_is_indexed_by_cache_key(self):
from cocktail.html.element import Element
a = Element("div")
a.append("a")
a.cached = True
a.cache_key = "a"
a.render(cache=self.cache)
b = Element("div")
b.append("b")
b.cached = True
b.cache_key = "b"
b.render(cache=self.cache)
x = Element("div")
x.append("x")
x.cached = True
x.cache_key = "x"
x.render(cache=self.cache)
assert x.render(cache=self.cache) == "<div>x</div>"
x.cache_key = "a"
assert x.render(cache=self.cache) == "<div>a</div>"
x.cache_key = "b"
assert x.render(cache=self.cache) == "<div>b</div>"
def test_elements_reuse_cached_content(self):
from cocktail.html.element import Element
e = Element("div")
e.append("Hello, world")
e.cached = True
e.cache_key = "test"
e.render(cache=self.cache)
e.append("!!!")
assert e.render(cache=self.cache) == "<div>Hello, world</div>"
e.cached = False
assert e.render(cache=self.cache) == "<div>Hello, world!!!</div>"
def test_cached_content_respects_renderer_class(self):
from cocktail.html.element import Element
from cocktail.html.renderers import html4_renderer, xhtml_renderer
img = Element("img")
img.cached = True
img.cache_key = "test"
img.render(cache=self.cache)
html = img.render(renderer=html4_renderer, cache=self.cache)
assert html == "<img>"
xhtml = img.render(renderer=xhtml_renderer, cache=self.cache)
assert xhtml == "<img/>"
def test_elements_can_invalidate_cached_content(self):
from cocktail.html.element import Element
e = Element()
e.cached = True
e.cached_key = "foo"
e.cache_tags.add("foo")
e.render(cache=self.cache)
e.append("foo")
html = e.render(cache=self.cache)
assert "foo" not in html
self.cache.clear(scope=["foo"])
html = e.render(cache=self.cache)
assert "foo" in html
def test_elements_can_define_cache_expiration(self):
from time import sleep
from datetime import timedelta
from cocktail.html.element import Element
e = Element()
e.cached = True
e.cache_key = "test"
e.cache_expiration = timedelta(seconds=1)
e.render(cache=self.cache)
e.append("foo")
assert "foo" not in e.render(cache=self.cache)
sleep(1.2)
assert "foo" in e.render(cache=self.cache)
def test_cached_content_includes_client_parameters(self):
from cocktail.events import when
from cocktail.html.element import Element
e = Element()
e.cached = True
e.cache_key = "test"
@when(e.ready_stage)
def add_resources(event):
child = Element()
child.set_client_param("foo", "bar")
e.append(child)
e.render(cache=self.cache)
assert "foo" in e.render_page()
