Initial support for the Bool API query in PG searches

.gitlab-ci.yml

@@ -78,9 +78,10 @@ test:
       chown -R test:test /root/.cache/cabal/logs/
       chown -R test:test /root/.cache/cabal/packages/hackage.haskell.org/
 
-      ls /builds/gargantext/devops/coreNLP/stanford-corenlp-current
-      cp -R /builds/gargantext/devops/coreNLP/stanford-corenlp-current /build/gargantext/haskell-gargantext/devops/coreNLP/
-      chown -R test:test /build/gargantext/haskell-gargantext/devops/coreNLP/stanford-corenlp-current
+      # This is not optimal because it downloads the coreNLP binary every time
+      # and it's not resistant in case of network outages.
+      cd /builds/gargantext/haskell-gargantext/devops/coreNLP; ./build.sh
+      cd /builds/gargantext/haskell-gargantext
 
       nix-shell --run "chown -R test:test /root/.config/ && su -m test -c \"export PATH=$PATH:$TEST_NIX_PATH && cd /builds/gargantext/haskell-gargantext; $CABAL --store-dir=$CABAL_STORE_DIR v2-test --test-show-details=streaming --flags test-crypto --ghc-options='-O0 -fclear-plugins'\""
       chown -R root:root dist-newstyle/

gargantext.cabal

@@ -124,6 +124,7 @@ library
       Gargantext.Database.Admin.Types.Hyperdata.Document
       Gargantext.Database.Admin.Types.Node
       Gargantext.Database.Prelude
+      Gargantext.Database.Query.Facet
       Gargantext.Database.Query.Table.NgramsPostag
       Gargantext.Database.Query.Table.Node
       Gargantext.Database.Query.Table.Node.Error
@@ -316,7 +317,6 @@ library
       Gargantext.Database.Admin.Types.Metrics
       Gargantext.Database.GargDB
       Gargantext.Database.Query
-      Gargantext.Database.Query.Facet
       Gargantext.Database.Query.Facet.Types
       Gargantext.Database.Query.Filter
       Gargantext.Database.Query.Join

src/Gargantext/API/Search.hs

@@ -17,12 +17,13 @@ Count API part of Gargantext.
 module Gargantext.API.Search
       where
 
-import Data.Aeson hiding (defaultTaggedObject)
 -- import Data.List (concat)
+import Data.Aeson hiding (defaultTaggedObject)
 import Data.Swagger hiding (fieldLabelModifier, Contact)
 import Data.Text (Text)
 import GHC.Generics (Generic)
 import Gargantext.API.Prelude (GargServer)
+import Gargantext.Core.Text.Corpus.Query (RawQuery (..), parseQuery)
 import Gargantext.Core.Types.Query (Limit, Offset)
 import Gargantext.Core.Types.Search
 import Gargantext.Core.Utils.Prefix (unPrefixSwagger)
@@ -37,6 +38,7 @@ import Servant
 import Test.QuickCheck (elements)
 import Test.QuickCheck.Arbitrary
 import qualified Data.Text as T
+import Data.Either
 
 -----------------------------------------------------------------------
 -- TODO-ACCESS: CanSearch? or is it part of CanGetNode
@@ -50,13 +52,18 @@ type API results = Summary "Search endpoint"
 -----------------------------------------------------------------------
 -- | Api search function
 api :: NodeId -> GargServer (API SearchResult)
-api nId (SearchQuery q SearchDoc) o l order = do
-  $(logLocM) DEBUG $ T.pack "New search started with query = " <> T.pack (show q)
+api nId (SearchQuery rawQuery SearchDoc) o l order = do
+  case parseQuery rawQuery of
+    Left  err -> pure $ SearchResult $ SearchNoResult (T.pack err)
+    Right q   -> do
+      $(logLocM) DEBUG $ T.pack "New search started with query = " <> (getRawQuery rawQuery)
       SearchResult <$> SearchResultDoc
                    <$> map (toRow nId)
                    <$> searchInCorpus nId False q o l order
-               -- <$> searchInCorpus nId False (concat q) o l order
-api nId (SearchQuery q SearchContact) o l order = do
+api nId (SearchQuery rawQuery SearchContact) o l order = do
+  case parseQuery rawQuery of
+    Left  err -> pure $ SearchResult $ SearchNoResult (T.pack err)
+    Right q   -> do
       -- printDebug "isPairedWith" nId
       aIds <- isPairedWith nId NodeAnnuaire
       -- TODO if paired with several corpus
@@ -85,7 +92,7 @@ instance Arbitrary SearchType where
 
 -----------------------------------------------------------------------
 data SearchQuery =
-  SearchQuery { query    :: ![Text]
+  SearchQuery { query    :: !RawQuery
               , expected :: !SearchType
               }
     deriving (Generic)
@@ -100,7 +107,7 @@ instance ToSchema SearchQuery
 -}
 
 instance Arbitrary SearchQuery where
-  arbitrary = elements [SearchQuery ["electrodes"] SearchDoc]
+  arbitrary = elements [SearchQuery (RawQuery "electrodes") SearchDoc]
   -- arbitrary = elements [SearchQuery "electrodes" 1 ] --SearchDoc]
 -----------------------------------------------------------------------
 data SearchResult =

src/Gargantext/API/Table.hs

@@ -36,6 +36,7 @@ import Data.Maybe
 import Data.Swagger
 import Data.Text (Text())
 import GHC.Generics (Generic)
+import Prelude
 import Servant
 import Test.QuickCheck (elements)
 import Test.QuickCheck.Arbitrary (Arbitrary, arbitrary)
@@ -43,15 +44,16 @@ import Test.QuickCheck.Arbitrary (Arbitrary, arbitrary)
 import Gargantext.API.HashedResponse
 import Gargantext.API.Ngrams.Types (TabType(..))
 import Gargantext.API.Prelude (GargServer)
+import Gargantext.Core.Text.Corpus.Query (RawQuery, parseQuery)
 import Gargantext.Core.Types (TableResult(..))
 import Gargantext.Core.Types.Query (Offset, Limit)
 import Gargantext.Core.Utils.Prefix (unPrefix, unPrefixSwagger)
 import Gargantext.Database.Action.Learn (FavOrTrash(..), moreLike)
 import Gargantext.Database.Action.Search
-import Gargantext.Database.Admin.Types.Node
-import Gargantext.Database.Query.Table.Node.Error (HasNodeError)
-import Gargantext.Database.Query.Facet (FacetDoc , runViewDocuments, runCountDocuments, OrderBy(..), runViewAuthorsDoc)
+import Gargantext.Database.Admin.Types.Node hiding (ERROR, DEBUG)
 import Gargantext.Database.Prelude -- (Cmd, CmdM)
+import Gargantext.Database.Query.Facet (FacetDoc , runViewDocuments, runCountDocuments, OrderBy(..), runViewAuthorsDoc)
+import Gargantext.Database.Query.Table.Node.Error (HasNodeError)
 import Gargantext.Prelude
 
 ------------------------------------------------------------------------
@@ -77,7 +79,7 @@ data TableQuery = TableQuery
   , tq_limit        :: Limit
   , tq_orderBy      :: OrderBy
   , tq_view         :: TabType
-  , tq_query        :: Text
+  , tq_query        :: RawQuery
   } deriving (Generic)
 
 type FacetTableResult = TableResult FacetDoc
@@ -116,12 +118,12 @@ getTableApi cId tabType mLimit mOffset mOrderBy mQuery mYear = do
   t <- getTable cId tabType mOffset mLimit mOrderBy mQuery mYear
   pure $ constructHashedResponse t
 
-postTableApi :: HasNodeError err
-             => NodeId -> TableQuery -> Cmd err FacetTableResult
-postTableApi cId (TableQuery o l order ft "") = getTable cId (Just ft) (Just o) (Just l) (Just order) Nothing Nothing
-postTableApi cId (TableQuery o l order ft q) = case ft of
-      Docs  -> searchInCorpus' cId False [q] (Just o) (Just l) (Just order)
-      Trash -> searchInCorpus' cId True [q] (Just o) (Just l) (Just order)
+postTableApi :: HasNodeError err => NodeId -> TableQuery -> Cmd err FacetTableResult
+postTableApi cId tq = case tq of
+ TableQuery o l order ft "" -> getTable cId (Just ft) (Just o) (Just l) (Just order) Nothing Nothing
+ TableQuery o l order ft q  -> case ft of
+   Docs  -> searchInCorpus' cId False q (Just o) (Just l) (Just order)
+   Trash -> searchInCorpus' cId True  q (Just o) (Just l) (Just order)
    x     -> panic $ "not implemented in tableApi " <> (cs $ show x)
 
 getTableHashApi :: HasNodeError err
@@ -132,14 +134,20 @@ getTableHashApi cId tabType = do
 
 searchInCorpus' :: CorpusId
                 -> Bool
-                -> [Text]
+                -> RawQuery
                 -> Maybe Offset
                 -> Maybe Limit
                 -> Maybe OrderBy
                 -> Cmd err FacetTableResult
 searchInCorpus' cId t q o l order = do
-  docs          <- searchInCorpus cId t q o l order
-  countAllDocs  <- searchCountInCorpus cId t q
+  case parseQuery q of
+    -- FIXME(adn) The error handling needs to be monomorphic over GargErr.
+    Left _noParseErr -> do
+      -- - $(logLocM) ERROR $ "Invalid input query " <> (getRawQuery q) <> " , error = " <> (T.pack noParseErr)
+      pure $ TableResult 0 []
+    Right boolQuery -> do
+      docs          <- searchInCorpus cId t boolQuery o l order
+      countAllDocs  <- searchCountInCorpus cId t boolQuery
       pure $ TableResult { tr_docs = docs, tr_count = countAllDocs }
 
 

src/Gargantext/Core/Text/Corpus/Query.hs

@@ -6,6 +6,7 @@ module Gargantext.Core.Text.Corpus.Query (
   , Limit(..)
   , getQuery
   , parseQuery
+  , mapQuery
   , renderQuery
   , interpretQuery
   , ExternalAPIs(..)
@@ -93,3 +94,6 @@ parseQuery (RawQuery txt) = bimap show (Query . BoolExpr.boolTreeToCNF) $
 
 renderQuery :: Query -> RawQuery
 renderQuery (Query cnf) = RawQuery . T.pack $ BoolExpr.boolExprPrinter (showsPrec 0) (BoolExpr.fromCNF cnf) ""
+
+mapQuery :: (Term -> Term) -> Query -> Query
+mapQuery f = Query . fmap f . getQuery

src/Gargantext/Database/Action/Search.hs

@@ -21,34 +21,67 @@ module Gargantext.Database.Action.Search (
 
 import Control.Arrow (returnA)
 import Control.Lens ((^.), view)
-import qualified Data.List as List
-import qualified Data.Map.Strict as Map
 import Data.Maybe
-import qualified Data.Set as Set
-import Data.Text (Text, unpack, intercalate)
+import Data.Profunctor.Product (p4)
+import Data.Text (Text, unpack)
 import Data.Time (UTCTime)
 import Gargantext.Core
+import Gargantext.Core.Text.Terms.Mono.Stem.En (stemIt)
 import Gargantext.Core.Types
 import Gargantext.Core.Types.Query (IsTrash, Limit, Offset)
 import Gargantext.Database.Admin.Types.Hyperdata (HyperdataDocument(..), HyperdataContact(..))
 import Gargantext.Database.Prelude (runOpaQuery, runCountOpaQuery, DBCmd)
 import Gargantext.Database.Query.Facet
 import Gargantext.Database.Query.Filter
-import Gargantext.Database.Query.Table.Node
-import Gargantext.Database.Query.Table.Node.Error (HasNodeError())
 import Gargantext.Database.Query.Table.Context
 import Gargantext.Database.Query.Table.ContextNodeNgrams (queryContextNodeNgramsTable)
+import Gargantext.Database.Query.Table.Node
+import Gargantext.Database.Query.Table.Node.Error (HasNodeError())
 import Gargantext.Database.Query.Table.NodeContext
 import Gargantext.Database.Query.Table.NodeContext_NodeContext
+import Gargantext.Database.Schema.Context
 import Gargantext.Database.Schema.ContextNodeNgrams (ContextNodeNgramsPoly(..))
 import Gargantext.Database.Schema.Ngrams (NgramsType(..))
 import Gargantext.Database.Schema.Node
-import Gargantext.Database.Schema.Context
 import Gargantext.Prelude
-import Gargantext.Core.Text.Terms.Mono.Stem.En (stemIt)
 import Opaleye hiding (Order)
-import Data.Profunctor.Product (p4)
+import qualified Data.List as List
+import qualified Data.Map.Strict as Map
+import qualified Data.Set as Set
+import qualified Gargantext.Core.Text.Corpus.Query as API
 import qualified Opaleye as O hiding (Order)
+import Data.BoolExpr
+import qualified Data.Text as T
+
+--
+-- Interpreting a query into a Postgres' TSQuery
+--
+
+queryToTsSearch :: API.Query -> Field SqlTSQuery
+queryToTsSearch q = sqlToTSQuery $ T.unpack $ (API.interpretQuery q transformAST)
+  where
+    transformAST :: BoolExpr Term -> T.Text
+    transformAST ast = case ast of
+      BAnd sub1 sub2
+        -> " (" <> transformAST sub1 <> " & " <> transformAST sub2 <> ") "
+      BOr sub1 sub2
+        -> " (" <> transformAST sub1 <> " | " <> transformAST sub2 <> ") "
+      BNot (BConst (Negative term))
+        -> transformAST (BConst (Positive term)) -- double negation
+      BNot sub
+        -> "!" <> transformAST sub
+      -- BTrue cannot happen is the query parser doesn't support parsing 'TRUE' alone.
+      BTrue
+        -> T.empty
+      -- BTrue cannot happen is the query parser doesn't support parsing 'FALSE' alone.
+      BFalse
+        -> T.empty
+      BConst (Positive (Term term))
+        -> T.intercalate " & " $ T.words term
+      -- We can handle negatives via `ANDNOT` with itself.
+      BConst (Negative (Term term))
+        -> "!" <> term
+
 
 ------------------------------------------------------------------------
 searchDocInDatabase :: HasDBid NodeType
@@ -139,7 +172,7 @@ _queryListWithNgrams lId ngramIds = proc () -> do
 searchInCorpus :: HasDBid NodeType
                => CorpusId
                -> IsTrash
-               -> [Text]
+               -> API.Query
                -> Maybe Offset
                -> Maybe Limit
                -> Maybe OrderBy
@@ -147,23 +180,21 @@ searchInCorpus :: HasDBid NodeType
 searchInCorpus cId t q o l order = runOpaQuery
                                  $ filterWith o l order
                                  $ queryInCorpus cId t
-                                 $ intercalate " | "
-                                 $ map stemIt q
+                                 $ API.mapQuery (Term . stemIt . getTerm) q
 
 searchCountInCorpus :: HasDBid NodeType
                     => CorpusId
                     -> IsTrash
-                    -> [Text]
+                    -> API.Query
                     -> DBCmd err Int
 searchCountInCorpus cId t q = runCountOpaQuery
                             $ queryInCorpus cId t
-                            $ intercalate " | "
-                            $ map stemIt q
+                            $ API.mapQuery (Term . stemIt . getTerm) q
 
 queryInCorpus :: HasDBid NodeType
               => CorpusId
               -> IsTrash
-              -> Text
+              -> API.Query
               -> O.Select FacetDocRead
 queryInCorpus cId t q = proc () -> do
   c <- queryContextSearchTable -< ()
@@ -175,7 +206,7 @@ queryInCorpus cId t q = proc () -> do
                  else matchMaybe (view nc_category <$> nc) $ \case
                         Nothing -> toFields False
                         Just c' -> c' .>= sqlInt4 1
-  restrict -< (c ^. cs_search)           @@ sqlToTSQuery (unpack q)
+  restrict -< (c ^. cs_search)           @@ queryToTsSearch q
   restrict -< (c ^. cs_typename )       .== sqlInt4 (toDBid NodeDocument)
   returnA  -< FacetDoc { facetDoc_id         = c^.cs_id
                        , facetDoc_created    = c^.cs_date
@@ -191,7 +222,7 @@ searchInCorpusWithContacts
   :: HasDBid NodeType
   => CorpusId
   -> AnnuaireId
-  -> [Text]
+  -> API.Query
   -> Maybe Offset
   -> Maybe Limit
   -> Maybe OrderBy
@@ -201,13 +232,12 @@ searchInCorpusWithContacts cId aId q o l _order =
               $ offset'  o
               $ orderBy (desc _fp_score)
               $ selectGroup cId aId
-              $ intercalate " | "
-              $ map stemIt q
+              $ API.mapQuery (Term . stemIt . getTerm) q
 
 selectGroup :: HasDBid NodeType
             => CorpusId
             -> AnnuaireId
-            -> Text
+            -> API.Query
             -> Select FacetPairedRead
 selectGroup cId aId q = proc () -> do
   (a, b, c, d) <- aggregate (p4 (groupBy, groupBy, groupBy, O.sum))
@@ -219,7 +249,7 @@ selectContactViaDoc
   :: HasDBid NodeType
   => CorpusId
   -> AnnuaireId
-  -> Text
+  -> API.Query
   -> SelectArr ()
                ( Field SqlInt4
                , Field SqlTimestamptz
@@ -231,7 +261,7 @@ selectContactViaDoc cId aId query = proc () -> do
   (contact, annuaire, _, corpus, doc) <- queryContactViaDoc -< ()
   restrict -< matchMaybe (view cs_search <$> doc) $ \case
     Nothing -> toFields False
-    Just s  -> s @@ sqlToTSQuery (unpack query)
+    Just s  -> s @@ queryToTsSearch query
   restrict -< (view cs_typename <$> doc)          .=== justFields (sqlInt4 (toDBid NodeDocument))
   restrict -< (view nc_node_id <$> corpus)        .=== justFields (pgNodeId cId)
   restrict -< (view nc_node_id <$> annuaire)      .=== justFields (pgNodeId aId)

src/Gargantext/Database/Query/Table/Node/Error.hs

@@ -37,6 +37,7 @@ data NodeError = NoListFound { listId :: ListId }
                | DoesNotExist NodeId
                | NeedsConfiguration
                | NodeError Text
+               | QueryNoParse Text
 
 instance Show NodeError
   where
@@ -55,6 +56,7 @@ instance Show NodeError
     show (DoesNotExist n)   = "Node does not exist (" <> show n <> ")"
     show NeedsConfiguration = "Needs configuration"
     show (NodeError e)      = "NodeError: " <> cs e
+    show (QueryNoParse err) = "QueryNoParse: " <> T.unpack err
 
 instance ToJSON NodeError where
   toJSON (NoListFound { listId = NodeId listId }) =

test/Database/Operations.hs

@@ -128,6 +128,7 @@ tests = sequential $ aroundAll withTestDB $ describe "Database" $ do
       it "Can stem query terms" stemmingTest
       it "Can perform a simple search inside documents" corpusSearch01
       it "Can perform search by author in documents" corpusSearch02
+      it "Can perform more complex searches using the boolean API" corpusSearch03
 
 data ExpectedActual a =
     Expected a

test/Database/Operations/DocumentSearch.hs

@@ -23,6 +23,9 @@ import Test.Hspec.Expectations
 import Test.Tasty.HUnit
 import Gargantext.Core.Text.Terms.Mono.Stem.En
 import Gargantext.Database.Admin.Config (userMaster)
+import qualified Data.Text as T
+import qualified Gargantext.Core.Text.Corpus.Query as API
+import Gargantext.Database.Query.Facet
 
 
 exampleDocument_01 :: HyperdataDocument
@@ -48,14 +51,13 @@ exampleDocument_01 = either error id $ parseEither parseJSON $ [aesonQQ|
 
 exampleDocument_02 :: HyperdataDocument
 exampleDocument_02 = either error id $ parseEither parseJSON $ [aesonQQ|
-  { "doi":"02"
+  { "doi":""
+  , "uniqId": "1405.3072v3"
+  , "bdd": "Arxiv"
   , "publication_day":6
   , "language_iso2":"EN"
-  , "publication_minute":0
-  , "publication_month":7
-  , "language_iso3":"eng"
   , "publication_second":0
-  , "authors":"Ajeje Brazorf and Manuel Agnelli"
+  , "authors":"Ajeje Brazorf, Manuel Agnelli"
   , "publication_year":2012
   , "publication_date":"2012-07-06 00:00:00+00:00"
   , "language_name":"English"
@@ -76,7 +78,7 @@ exampleDocument_03 = either error id $ parseEither parseJSON $ [aesonQQ|
   , "title": "Haskell for OCaml programmers"
   , "source": ""
   , "uniqId": "1405.3072v2"
-  , "authors": "Raphael Poss"
+  , "authors": "Raphael Poss, Herbert Ballerina"
   , "abstract": "  This introduction to Haskell is written to optimize learning by programmers who already know OCaml. "
   , "institutes": ""
   , "language_iso2": "EN"
@@ -85,6 +87,23 @@ exampleDocument_03 = either error id $ parseEither parseJSON $ [aesonQQ|
 }
 |]
 
+exampleDocument_04 :: HyperdataDocument
+exampleDocument_04 = either error id $ parseEither parseJSON $ [aesonQQ|
+{
+    "bdd": "Arxiv"
+  , "doi": ""
+  , "url": "http://arxiv.org/pdf/1407.5670v1"
+  , "title": "Rust for functional programmers"
+  , "source": ""
+  , "uniqId": "1407.5670v1"
+  , "authors": "Raphael Poss"
+  , "abstract": "  This article provides an introduction to Rust , a systems language by Mozilla , to programmers already familiar with Haskell , OCaml or other functional languages. " , "institutes": ""
+  , "language_iso2": "EN"
+  , "publication_date": "2014-07-21T21:20:31Z"
+  , "publication_year": 2014
+}
+|]
+
 nlpServerConfig :: NLPServerConfig
 nlpServerConfig =
   let uri = parseURI "http://localhost:9000"
@@ -103,14 +122,17 @@ corpusAddDocuments env = do
                                      (Just $ _node_hyperdata $ corpus)
                                      (Multi EN)
                                      corpusId
-                                     [exampleDocument_01, exampleDocument_02, exampleDocument_03]
-    liftIO $ length ids `shouldBe` 3
+                                     [exampleDocument_01, exampleDocument_02, exampleDocument_03, exampleDocument_04]
+    liftIO $ length ids `shouldBe` 4
 
 stemmingTest :: TestEnv -> Assertion
 stemmingTest _env = do
   stemIt "Ajeje"    `shouldBe` "Ajeje"
   stemIt "PyPlasm:" `shouldBe` "PyPlasm:"
 
+mkQ :: T.Text -> API.Query
+mkQ txt = either (\e -> error $ "(query) = " <> T.unpack txt <> ": " <> e) id . API.parseQuery . API.RawQuery $ txt
+
 corpusSearch01 :: TestEnv -> Assertion
 corpusSearch01 env = do
   flip runReaderT env $ runTestMonad $ do
@@ -118,8 +140,8 @@ corpusSearch01 env = do
     parentId <- getRootId (UserName userMaster)
     [corpus] <- getCorporaWithParentId parentId
 
-    results1 <- searchInCorpus (_node_id corpus) False ["mineral"] Nothing Nothing Nothing
-    results2 <- searchInCorpus (_node_id corpus) False ["computational"] Nothing Nothing Nothing
+    results1 <- searchInCorpus (_node_id corpus) False (mkQ "mineral") Nothing Nothing Nothing
+    results2 <- searchInCorpus (_node_id corpus) False (mkQ "computational") Nothing Nothing Nothing
 
     liftIO $ length results1 `shouldBe` 1
     liftIO $ length results2 `shouldBe` 1
@@ -132,7 +154,26 @@ corpusSearch02 env = do
     parentId <- getRootId (UserName userMaster)
     [corpus] <- getCorporaWithParentId parentId
 
-    results1 <- searchInCorpus (_node_id corpus) False ["Raphael"] Nothing Nothing Nothing
+    results1 <- searchInCorpus (_node_id corpus) False (mkQ "Raphael") Nothing Nothing Nothing
+    results2 <- searchInCorpus (_node_id corpus) False (mkQ "Raphael Poss") Nothing Nothing Nothing
+
+    liftIO $ do
+      length results1 `shouldBe` 2 -- Haskell & Rust
+      map facetDoc_title results2 `shouldBe` ["Haskell for OCaml programmers", "Rust for functional programmers"]
+
+-- | Check that we support more complex queries via the bool API
+corpusSearch03 :: TestEnv -> Assertion
+corpusSearch03 env = do
+  flip runReaderT env $ runTestMonad $ do
+
+    parentId <- getRootId (UserName userMaster)
+    [corpus] <- getCorporaWithParentId parentId
+
+    results1 <- searchInCorpus (_node_id corpus) False (mkQ "\"Manuel Agnelli\"") Nothing Nothing Nothing
+    results2 <- searchInCorpus (_node_id corpus) False (mkQ "Raphael AND -Rust") Nothing Nothing Nothing
+    results3 <- searchInCorpus (_node_id corpus) False (mkQ "(Raphael AND (NOT Rust)) OR PyPlasm") Nothing Nothing Nothing
 
     liftIO $ do
       length results1 `shouldBe` 1
+      map facetDoc_title results2 `shouldBe` ["Haskell for OCaml programmers"]
+      map facetDoc_title results3 `shouldBe` ["PyPlasm: computational geometry made easy", "Haskell for OCaml programmers"]