author | Sylvain Thénault <sylvain.thenault@logilab.fr> |
Fri, 13 Nov 2009 11:16:39 +0100 | |
branch | stable |
changeset 3841 | b2598c9eeffc |
parent 3826 | 0c0c051863cb |
child 3877 | 7ca53fc72a0a |
child 4212 | ab6573088b4a |
permissions | -rw-r--r-- |
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""" |
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:organization: Logilab |
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:copyright: 2001-2009 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2. |
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:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr |
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:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses |
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""" |
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from logilab.common.testlib import unittest_main, TestCase |
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from logilab.common.testlib import mock_object |
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from rql import parse, nodes, RQLHelper |
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from cubicweb import Unauthorized |
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from cubicweb.schema import RRQLExpression |
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from cubicweb.rqlrewrite import RQLRewriter |
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from cubicweb.devtools import repotest, TestServerConfiguration |
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config = TestServerConfiguration('data/rewrite') |
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config.bootstrap_cubes() |
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schema = config.load_schema() |
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schema.add_relation_def(mock_object(subject='Card', name='in_state', object='State', cardinality='1*')) |
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rqlhelper = RQLHelper(schema, special_relations={'eid': 'uid', |
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'has_text': 'fti'}) |
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def setup_module(*args): |
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repotest.do_monkey_patch() |
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def teardown_module(*args): |
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repotest.undo_monkey_patch() |
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def eid_func_map(eid): |
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return {1: 'CWUser', |
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2: 'Card'}[eid] |
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def rewrite(rqlst, snippets_map, kwargs, existingvars=None): |
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class FakeVReg: |
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schema = schema |
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@staticmethod |
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def solutions(sqlcursor, mainrqlst, kwargs): |
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rqlhelper.compute_solutions(rqlst, {'eid': eid_func_map}, kwargs=kwargs) |
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class rqlhelper: |
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@staticmethod |
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def annotate(rqlst): |
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rqlhelper.annotate(rqlst) |
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@staticmethod |
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def simplify(mainrqlst, needcopy=False): |
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rqlhelper.simplify(rqlst, needcopy) |
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rewriter = RQLRewriter(mock_object(vreg=FakeVReg, user=(mock_object(eid=1)))) |
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for v, snippets in snippets_map.items(): |
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snippets_map[v] = [isinstance(snippet, basestring) |
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and mock_object(snippet_rqlst=parse('Any X WHERE '+snippet).children[0], |
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expression='Any X WHERE '+snippet) |
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or snippet |
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for snippet in snippets] |
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rqlhelper.compute_solutions(rqlst.children[0], {'eid': eid_func_map}, kwargs=kwargs) |
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solutions = rqlst.children[0].solutions |
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rewriter.rewrite(rqlst.children[0], snippets_map.items(), solutions, kwargs, |
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existingvars) |
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test_vrefs(rqlst.children[0]) |
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return rewriter.rewritten |
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def test_vrefs(node): |
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vrefmap = {} |
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for vref in node.iget_nodes(nodes.VariableRef): |
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vrefmap.setdefault(vref.name, set()).add(vref) |
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for var in node.defined_vars.itervalues(): |
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assert not (var.stinfo['references'] ^ vrefmap[var.name]) |
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assert (var.stinfo['references']) |
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class RQLRewriteTC(TestCase): |
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"""a faire: |
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* optimisation: detecter les relations utilisees dans les rqlexpressions qui |
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sont presentes dans la requete de depart pour les reutiliser si possible |
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* "has_<ACTION>_permission" ? |
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""" |
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def test_base_var(self): |
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card_constraint = ('X in_state S, U in_group G, P require_state S,' |
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'P name "read", P require_group G') |
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rqlst = parse('Card C') |
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rewrite(rqlst, {('C', 'X'): (card_constraint,)}, {}) |
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self.failUnlessEqual(rqlst.as_string(), |
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u"Any C WHERE C is Card, B eid %(D)s, " |
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"EXISTS(C in_state A, B in_group E, F require_state A, " |
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"F name 'read', F require_group E, A is State, E is CWGroup, F is CWPermission)") |
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def test_multiple_var(self): |
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card_constraint = ('X in_state S, U in_group G, P require_state S,' |
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'P name "read", P require_group G') |
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affaire_constraints = ('X ref LIKE "PUBLIC%"', 'U in_group G, G name "public"') |
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kwargs = {'u':2} |
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rqlst = parse('Any S WHERE S documented_by C, C eid %(u)s') |
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rewrite(rqlst, {('C', 'X'): (card_constraint,), ('S', 'X'): affaire_constraints}, |
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kwargs) |
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self.assertTextEquals(rqlst.as_string(), |
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"Any S WHERE S documented_by C, C eid %(u)s, B eid %(D)s, " |
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"EXISTS(C in_state A, B in_group E, F require_state A, " |
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"F name 'read', F require_group E, A is State, E is CWGroup, F is CWPermission), " |
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"(EXISTS(S ref LIKE 'PUBLIC%')) OR (EXISTS(B in_group G, G name 'public', G is CWGroup)), " |
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"S is Affaire") |
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self.failUnless('D' in kwargs) |
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def test_or(self): |
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constraint = '(X identity U) OR (X in_state ST, CL identity U, CL in_state ST, ST name "subscribed")' |
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rqlst = parse('Any S WHERE S owned_by C, C eid %(u)s, S is in (CWUser, CWGroup)') |
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rewrite(rqlst, {('C', 'X'): (constraint,)}, {'u':1}) |
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self.failUnlessEqual(rqlst.as_string(), |
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"Any S WHERE S owned_by C, C eid %(u)s, S is IN(CWUser, CWGroup), A eid %(B)s, " |
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"EXISTS((C identity A) OR (C in_state D, E identity A, " |
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"E in_state D, D name 'subscribed'), D is State, E is CWUser)") |
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def test_simplified_rqlst(self): |
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card_constraint = ('X in_state S, U in_group G, P require_state S,' |
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'P name "read", P require_group G') |
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rqlst = parse('Any 2') # this is the simplified rql st for Any X WHERE X eid 12 |
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rewrite(rqlst, {('2', 'X'): (card_constraint,)}, {}) |
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self.failUnlessEqual(rqlst.as_string(), |
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u"Any 2 WHERE B eid %(C)s, " |
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"EXISTS(2 in_state A, B in_group D, E require_state A, " |
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"E name 'read', E require_group D, A is State, D is CWGroup, E is CWPermission)") |
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def test_optional_var(self): |
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card_constraint = ('X in_state S, U in_group G, P require_state S,' |
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'P name "read", P require_group G') |
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rqlst = parse('Any A,C WHERE A documented_by C?') |
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rewrite(rqlst, {('C', 'X'): (card_constraint,)}, {}) |
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self.failUnlessEqual(rqlst.as_string(), |
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"Any A,C WHERE A documented_by C?, A is Affaire " |
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"WITH C BEING " |
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"(Any C WHERE C in_state B, D in_group F, G require_state B, G name 'read', " |
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"G require_group F, D eid %(A)s, C is Card)") |
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rqlst = parse('Any A,C,T WHERE A documented_by C?, C title T') |
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rewrite(rqlst, {('C', 'X'): (card_constraint,)}, {}) |
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self.failUnlessEqual(rqlst.as_string(), |
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"Any A,C,T WHERE A documented_by C?, A is Affaire " |
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"WITH C,T BEING " |
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"(Any C,T WHERE C in_state B, D in_group F, G require_state B, G name 'read', " |
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"G require_group F, C title T, D eid %(A)s, C is Card)") |
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def test_relation_optimization_1_lhs(self): |
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# since Card in_state State as monovalued cardinality, the in_state |
145 |
# relation used in the rql expression can be ignored and S replaced by |
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# the variable from the incoming query |
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snippet = ('X in_state S, S name "hop"') |
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rqlst = parse('Card C WHERE C in_state STATE') |
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rewrite(rqlst, {('C', 'X'): (snippet,)}, {}) |
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self.failUnlessEqual(rqlst.as_string(), |
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"Any C WHERE C in_state STATE, C is Card, " |
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152 |
"EXISTS(STATE name 'hop'), STATE is State") |
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153 |
def test_relation_optimization_1_rhs(self): |
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snippet = ('TW subworkflow_exit X, TW name "hop"') |
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rqlst = parse('WorkflowTransition C WHERE C subworkflow_exit EXIT') |
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156 |
rewrite(rqlst, {('EXIT', 'X'): (snippet,)}, {}) |
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self.failUnlessEqual(rqlst.as_string(), |
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"Any C WHERE C subworkflow_exit EXIT, C is WorkflowTransition, " |
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159 |
"EXISTS(C name 'hop'), EXIT is SubWorkflowExitPoint") |
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160 |
|
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def test_relation_optimization_2_lhs(self): |
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# optional relation can be shared if also optional in the snippet |
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snippet = ('X in_state S?, S name "hop"') |
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rqlst = parse('Card C WHERE C in_state STATE?') |
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rewrite(rqlst, {('C', 'X'): (snippet,)}, {}) |
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self.failUnlessEqual(rqlst.as_string(), |
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"Any C WHERE C in_state STATE?, C is Card, " |
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168 |
"EXISTS(STATE name 'hop'), STATE is State") |
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def test_relation_optimization_2_rhs(self): |
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snippet = ('TW? subworkflow_exit X, TW name "hop"') |
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rqlst = parse('SubWorkflowExitPoint EXIT WHERE C? subworkflow_exit EXIT') |
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rewrite(rqlst, {('EXIT', 'X'): (snippet,)}, {}) |
0 | 173 |
self.failUnlessEqual(rqlst.as_string(), |
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174 |
"Any EXIT WHERE C? subworkflow_exit EXIT, EXIT is SubWorkflowExitPoint, " |
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175 |
"EXISTS(C name 'hop'), C is WorkflowTransition") |
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176 |
|
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177 |
def test_relation_optimization_3_lhs(self): |
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178 |
# optional relation in the snippet but not in the orig tree can be shared |
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179 |
snippet = ('X in_state S?, S name "hop"') |
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rqlst = parse('Card C WHERE C in_state STATE') |
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181 |
rewrite(rqlst, {('C', 'X'): (snippet,)}, {}) |
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182 |
self.failUnlessEqual(rqlst.as_string(), |
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183 |
"Any C WHERE C in_state STATE, C is Card, " |
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184 |
"EXISTS(STATE name 'hop'), STATE is State") |
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185 |
def test_relation_optimization_3_rhs(self): |
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186 |
snippet = ('TW? subworkflow_exit X, TW name "hop"') |
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rqlst = parse('WorkflowTransition C WHERE C subworkflow_exit EXIT') |
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188 |
rewrite(rqlst, {('EXIT', 'X'): (snippet,)}, {}) |
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189 |
self.failUnlessEqual(rqlst.as_string(), |
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190 |
"Any C WHERE C subworkflow_exit EXIT, C is WorkflowTransition, " |
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191 |
"EXISTS(C name 'hop'), EXIT is SubWorkflowExitPoint") |
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192 |
|
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193 |
def test_relation_non_optimization_1_lhs(self): |
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194 |
# but optional relation in the orig tree but not in the snippet can't be shared |
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195 |
snippet = ('X in_state S, S name "hop"') |
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196 |
rqlst = parse('Card C WHERE C in_state STATE?') |
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197 |
rewrite(rqlst, {('C', 'X'): (snippet,)}, {}) |
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198 |
self.failUnlessEqual(rqlst.as_string(), |
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199 |
"Any C WHERE C in_state STATE?, C is Card, " |
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200 |
"EXISTS(C in_state A, A name 'hop', A is State), STATE is State") |
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201 |
def test_relation_non_optimization_1_rhs(self): |
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202 |
snippet = ('TW subworkflow_exit X, TW name "hop"') |
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203 |
rqlst = parse('SubWorkflowExitPoint EXIT WHERE C? subworkflow_exit EXIT') |
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204 |
rewrite(rqlst, {('EXIT', 'X'): (snippet,)}, {}) |
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205 |
self.failUnlessEqual(rqlst.as_string(), |
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206 |
"Any EXIT WHERE C? subworkflow_exit EXIT, EXIT is SubWorkflowExitPoint, " |
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207 |
"EXISTS(A subworkflow_exit EXIT, A name 'hop', A is WorkflowTransition), " |
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208 |
"C is WorkflowTransition") |
0 | 209 |
|
210 |
def test_unsupported_constraint_1(self): |
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# CWUser doesn't have require_permission |
0 | 212 |
trinfo_constraint = ('X wf_info_for Y, Y require_permission P, P name "read"') |
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rqlst = parse('Any U,T WHERE U is CWUser, T wf_info_for U') |
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214 |
self.assertRaises(Unauthorized, rewrite, rqlst, {('T', 'X'): (trinfo_constraint,)}, {}) |
1787 | 215 |
|
0 | 216 |
def test_unsupported_constraint_2(self): |
217 |
trinfo_constraint = ('X wf_info_for Y, Y require_permission P, P name "read"') |
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rqlst = parse('Any U,T WHERE U is CWUser, T wf_info_for U') |
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219 |
rewrite(rqlst, {('T', 'X'): (trinfo_constraint, 'X wf_info_for Y, Y in_group G, G name "managers"')}, {}) |
0 | 220 |
self.failUnlessEqual(rqlst.as_string(), |
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u"Any U,T WHERE U is CWUser, T wf_info_for U, " |
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222 |
"EXISTS(U in_group B, B name 'managers', B is CWGroup), T is TrInfo") |
0 | 223 |
|
224 |
def test_unsupported_constraint_3(self): |
|
225 |
self.skip('raise unauthorized for now') |
|
226 |
trinfo_constraint = ('X wf_info_for Y, Y require_permission P, P name "read"') |
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227 |
rqlst = parse('Any T WHERE T wf_info_for X') |
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228 |
rewrite(rqlst, {('T', 'X'): (trinfo_constraint, 'X in_group G, G name "managers"')}, {}) |
0 | 229 |
self.failUnlessEqual(rqlst.as_string(), |
230 |
u'XXX dunno what should be generated') |
|
1787 | 231 |
|
0 | 232 |
def test_add_ambiguity_exists(self): |
233 |
constraint = ('X concerne Y') |
|
234 |
rqlst = parse('Affaire X') |
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235 |
rewrite(rqlst, {('X', 'X'): (constraint,)}, {}) |
0 | 236 |
self.failUnlessEqual(rqlst.as_string(), |
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237 |
u"Any X WHERE X is Affaire, ((EXISTS(X concerne A, A is Division)) OR (EXISTS(X concerne C, C is Societe))) OR (EXISTS(X concerne B, B is Note))") |
1787 | 238 |
|
0 | 239 |
def test_add_ambiguity_outerjoin(self): |
240 |
constraint = ('X concerne Y') |
|
241 |
rqlst = parse('Any X,C WHERE X? documented_by C') |
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242 |
rewrite(rqlst, {('X', 'X'): (constraint,)}, {}) |
0 | 243 |
# ambiguity are kept in the sub-query, no need to be resolved using OR |
244 |
self.failUnlessEqual(rqlst.as_string(), |
|
1787 | 245 |
u"Any X,C WHERE X? documented_by C, C is Card WITH X BEING (Any X WHERE X concerne A, X is Affaire)") |
246 |
||
247 |
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248 |
def test_rrqlexpr_nonexistant_subject_1(self): |
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249 |
constraint = RRQLExpression('S owned_by U') |
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250 |
rqlst = parse('Card C') |
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251 |
rewrite(rqlst, {('C', 'S'): (constraint,)}, {}, 'SU') |
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252 |
self.failUnlessEqual(rqlst.as_string(), |
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253 |
u"Any C WHERE C is Card, A eid %(B)s, EXISTS(C owned_by A)") |
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254 |
rqlst = parse('Card C') |
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255 |
rewrite(rqlst, {('C', 'S'): (constraint,)}, {}, 'OU') |
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256 |
self.failUnlessEqual(rqlst.as_string(), |
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257 |
u"Any C WHERE C is Card") |
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258 |
rqlst = parse('Card C') |
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259 |
rewrite(rqlst, {('C', 'S'): (constraint,)}, {}, 'SOU') |
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260 |
self.failUnlessEqual(rqlst.as_string(), |
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261 |
u"Any C WHERE C is Card, A eid %(B)s, EXISTS(C owned_by A)") |
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|
262 |
|
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263 |
def test_rrqlexpr_nonexistant_subject_2(self): |
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264 |
constraint = RRQLExpression('S owned_by U, O owned_by U, O is Card') |
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265 |
rqlst = parse('Card C') |
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266 |
rewrite(rqlst, {('C', 'S'): (constraint,)}, {}, 'SU') |
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267 |
self.failUnlessEqual(rqlst.as_string(), |
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268 |
'Any C WHERE C is Card, A eid %(B)s, EXISTS(C owned_by A)') |
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269 |
rqlst = parse('Card C') |
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270 |
rewrite(rqlst, {('C', 'S'): (constraint,)}, {}, 'OU') |
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271 |
self.failUnlessEqual(rqlst.as_string(), |
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272 |
'Any C WHERE C is Card, B eid %(D)s, EXISTS(A owned_by B, A is Card)') |
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rqlst = parse('Card C') |
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rewrite(rqlst, {('C', 'S'): (constraint,)}, {}, 'SOU') |
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self.failUnlessEqual(rqlst.as_string(), |
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'Any C WHERE C is Card, A eid %(B)s, EXISTS(C owned_by A, D owned_by A, D is Card)') |
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|
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def test_rrqlexpr_nonexistant_subject_3(self): |
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constraint = RRQLExpression('U in_group G, G name "users"') |
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rqlst = parse('Card C') |
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rewrite(rqlst, {('C', 'S'): (constraint,)}, {}, 'SU') |
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self.failUnlessEqual(rqlst.as_string(), |
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u'Any C WHERE C is Card, A eid %(B)s, EXISTS(A in_group D, D name "users", D is CWGroup)') |
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|
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def test_rrqlexpr_nonexistant_subject_4(self): |
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constraint = RRQLExpression('U in_group G, G name "users", S owned_by U') |
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rqlst = parse('Card C') |
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rewrite(rqlst, {('C', 'S'): (constraint,)}, {}, 'SU') |
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self.failUnlessEqual(rqlst.as_string(), |
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u'Any C WHERE C is Card, A eid %(B)s, EXISTS(A in_group D, D name "users", C owned_by A, D is CWGroup)') |
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rqlst = parse('Card C') |
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rewrite(rqlst, {('C', 'S'): (constraint,)}, {}, 'OU') |
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self.failUnlessEqual(rqlst.as_string(), |
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u'Any C WHERE C is Card, A eid %(B)s, EXISTS(A in_group D, D name "users", D is CWGroup)') |
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|
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def test_rrqlexpr_nonexistant_subject_5(self): |
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constraint = RRQLExpression('S owned_by Z, O owned_by Z, O is Card') |
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rqlst = parse('Card C') |
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rewrite(rqlst, {('C', 'S'): (constraint,)}, {}, 'S') |
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self.failUnlessEqual(rqlst.as_string(), |
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u"Any C WHERE C is Card, EXISTS(C owned_by A, A is CWUser)") |
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0 | 304 |
if __name__ == '__main__': |
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unittest_main() |