def test_cache(self):
from core.db.locator import XMLFileLocator
"""Test if basic caching is working."""
v = XMLFileLocator(core.system.vistrails_root_directory() + "/tests/resources/dummy.xml").load()
p1 = v.getPipeline("int chain")
n = v.get_version_number("int chain")
view = DummyView()
interpreter = core.interpreter.cached.CachedInterpreter.get()
result = interpreter.execute(None, p1, "dummy.xml", n, view)
# to force fresh params
p2 = v.getPipeline("int chain")
result = interpreter.execute(None, p2, "dummy.xml", n, view)
assert len(result.modules_added) == 1
