def test_replace_views():
dataset = DataSet()
adapter = dataset.add_adapter(MockAdapter())
no_managers = SelectionOp(
LoadOp('bogus'),
IsOp(Var('manager_id'), NullConst())
)
dataset.create_view(
'no_managers',
no_managers
)
view = AliasOp('no_managers', no_managers)
compare(
replace_views(LoadOp('no_managers'), dataset),
view
)
compare(
replace_views(
JoinOp(
LoadOp('no_managers'),
LoadOp('no_managers')
),
dataset
),
JoinOp(
view,
view
)
)
def test_replace_views():
dataset = DataSet()
adapter = dataset.add_adapter(MockAdapter())
no_managers = SelectionOp(LoadOp('bogus'),
IsOp(Var('manager_id'), NullConst()))
dataset.create_view('no_managers', no_managers)
view = AliasOp('no_managers', no_managers)
compare(replace_views(LoadOp('no_managers'), dataset), view)
compare(
replace_views(JoinOp(LoadOp('no_managers'), LoadOp('no_managers')),
dataset), JoinOp(view, view))
def test_replace_view_within_a_view():
dataset = DataSet()
adapter = dataset.add_adapter(MockAdapter())
dataset.create_view(
'view1',
LoadOp('bogus')
)
dataset.create_view(
'view2',
LoadOp('view1')
)
dataset.create_view(
'view3',
SelectionOp(LoadOp('view2'), IsOp(Var('x'), NullConst()))
)
v1 = replace_views(
LoadOp('view3'),
dataset
)
compare(
v1,
AliasOp('view3',
SelectionOp(
AliasOp('view2', AliasOp('view1',LoadOp('bogus'))),
IsOp(Var('x'), NullConst())
)
)
)
def test_replace_view_within_a_view():
dataset = DataSet()
adapter = dataset.add_adapter(MockAdapter())
dataset.create_view('view1', LoadOp('bogus'))
dataset.create_view('view2', LoadOp('view1'))
dataset.create_view(
'view3', SelectionOp(LoadOp('view2'), IsOp(Var('x'), NullConst())))
v1 = replace_views(LoadOp('view3'), dataset)
compare(
v1,
AliasOp(
'view3',
SelectionOp(AliasOp('view2', AliasOp('view1', LoadOp('bogus'))),
IsOp(Var('x'), NullConst()))))
