# ====================================================================
# Copyright (c) 2004-2005 Open Source Applications Foundation.
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# Software is furnished to do so, subject to the following conditions: 
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#

from unittest import TestCase

from PyLucene import \
     IndexWriter, Term, SimpleAnalyzer, PerFieldAnalyzerWrapper, \
     RAMDirectory, Document, Field, IndexSearcher, TermQuery, \
     QueryParser

from lia.analysis.keyword.KeywordAnalyzer import KeywordAnalyzer


class KeywordAnalyzerTest(TestCase):

    def setUp(self):

        self.directory = RAMDirectory()
        writer = IndexWriter(self.directory, SimpleAnalyzer(), True)

        doc = Document()
        doc.add(Field("partnum", "Q36",
                      Field.Store.YES, Field.Index.UN_TOKENIZED))
        doc.add(Field("description", "Illidium Space Modulator",
                      Field.Store.YES, Field.Index.TOKENIZED))
        writer.addDocument(doc)
        writer.close()

        self.searcher = IndexSearcher(self.directory)

    def testTermQuery(self):

        query = TermQuery(Term("partnum", "Q36"))
        hits = self.searcher.search(query)
        self.assertEqual(1, len(hits))

    def testBasicQueryParser(self):
        
        query = QueryParser("description",
                            SimpleAnalyzer()).parse("partnum:Q36 AND SPACE")

        hits = self.searcher.search(query)
        self.assertEqual("+partnum:q +space", query.toString("description"),
                         "note Q36 -> q")
        self.assertEqual(0, len(hits), "doc not found :(")

    def testPerFieldAnalyzer(self):

        analyzer = PerFieldAnalyzerWrapper(SimpleAnalyzer())
        analyzer.addAnalyzer("partnum", KeywordAnalyzer())

        query = QueryParser("description",
                            analyzer).parse("partnum:Q36 AND SPACE")
        hits = self.searcher.search(query)

        self.assertEqual("+partnum:Q36 +space", query.toString("description"),
                         "Q36 kept as-is")
        self.assertEqual(1, len(hits), "doc found!")