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from canonical.launchpad.webapp import canonical_url
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from canonical.launchpad.webapp.batching import BatchNavigator
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from lp.testing._login import person_logged_in
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from lp.testing._webservice import QueryCollector
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class BrowsesWithQueryLimit(Matcher):
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"""Matches the rendering of an objects default view with a query limit.
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This is a wrapper for HasQueryCount which does the heavy lifting on the
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query comparison - BrowsesWithQueryLimit simply provides convenient
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glue to use a userbrowser and view an object.
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def __init__(self, query_limit, user):
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"""Create a BrowsesWithQueryLimit checking for limit query_limit.
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:param query_limit: The number of queries permited for the page.
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:param user: The user to use to render the page.
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self.query_limit = query_limit
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def match(self, context):
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# circular dependencies.
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from canonical.launchpad.testing.pages import setupBrowserForUser
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with person_logged_in(self.user):
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context_url = canonical_url(context)
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browser = setupBrowserForUser(self.user)
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collector = QueryCollector()
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browser.open(context_url)
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counter = HasQueryCount(LessThan(self.query_limit))
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# When bug 724691 is fixed, this can become an AnnotateMismatch to
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# describe the object being rendered.
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return counter.match(collector)
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# Unregister now in case this method is called multiple
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# times in a single test.
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collector.unregister()
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return "BrowsesWithQueryLimit(%s, %s)" % (self.query_limit, self.user)
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class DoesNotProvide(Mismatch):
added
removed
lib/lp/testing/matchers.py
