// Copyright (c) 2014 Couchbase, Inc. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. package porter import ( "reflect" "testing" "github.com/blevesearch/bleve/analysis" ) func TestPorterStemmer(t *testing.T) { inputTokenStream := analysis.TokenStream{ &analysis.Token{ Term: []byte("walking"), }, &analysis.Token{ Term: []byte("talked"), }, &analysis.Token{ Term: []byte("business"), }, &analysis.Token{ Term: []byte("protected"), KeyWord: true, }, &analysis.Token{ Term: []byte("cat"), }, &analysis.Token{ Term: []byte("done"), }, // a term which does stem, but does not change length &analysis.Token{ Term: []byte("marty"), }, } expectedTokenStream := analysis.TokenStream{ &analysis.Token{ Term: []byte("walk"), }, &analysis.Token{ Term: []byte("talk"), }, &analysis.Token{ Term: []byte("busi"), }, &analysis.Token{ Term: []byte("protected"), KeyWord: true, }, &analysis.Token{ Term: []byte("cat"), }, &analysis.Token{ Term: []byte("done"), }, &analysis.Token{ Term: []byte("marti"), }, } filter := NewPorterStemmer() ouputTokenStream := filter.Filter(inputTokenStream) if !reflect.DeepEqual(ouputTokenStream, expectedTokenStream) { t.Errorf("expected %#v got %#v", expectedTokenStream[3], ouputTokenStream[3]) } } func BenchmarkPorterStemmer(b *testing.B) { inputTokenStream := analysis.TokenStream{ &analysis.Token{ Term: []byte("walking"), }, &analysis.Token{ Term: []byte("talked"), }, &analysis.Token{ Term: []byte("business"), }, &analysis.Token{ Term: []byte("protected"), KeyWord: true, }, &analysis.Token{ Term: []byte("cat"), }, &analysis.Token{ Term: []byte("done"), }, } filter := NewPorterStemmer() b.ResetTimer() for i := 0; i < b.N; i++ { filter.Filter(inputTokenStream) } }