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// 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 stop
import (
"reflect"
"testing"
"github.com/blevesearch/bleve/analysis"
"github.com/blevesearch/bleve/analysis/tokenmap"
"github.com/blevesearch/bleve/registry"
)
func TestStopWordsFilter(t *testing.T) {
inputTokenStream := analysis.TokenStream{
&analysis.Token{
Term: []byte("a"),
},
&analysis.Token{
Term: []byte("walk"),
},
&analysis.Token{
Term: []byte("in"),
},
&analysis.Token{
Term: []byte("the"),
},
&analysis.Token{
Term: []byte("park"),
},
}
expectedTokenStream := analysis.TokenStream{
&analysis.Token{
Term: []byte("walk"),
},
&analysis.Token{
Term: []byte("park"),
},
}
cache := registry.NewCache()
stopListConfig := map[string]interface{}{
"type": tokenmap.Name,
"tokens": []interface{}{"a", "in", "the"},
}
_, err := cache.DefineTokenMap("stop_test", stopListConfig)
if err != nil {
t.Fatal(err)
}
stopConfig := map[string]interface{}{
"type": "stop_tokens",
"stop_token_map": "stop_test",
}
stopFilter, err := cache.DefineTokenFilter("stop_test", stopConfig)
if err != nil {
t.Fatal(err)
}
ouputTokenStream := stopFilter.Filter(inputTokenStream)
if !reflect.DeepEqual(ouputTokenStream, expectedTokenStream) {
t.Errorf("expected %#v got %#v", expectedTokenStream, ouputTokenStream)
}
}
func BenchmarkStopWordsFilter(b *testing.B) {
inputTokenStream := analysis.TokenStream{
&analysis.Token{
Term: []byte("a"),
},
&analysis.Token{
Term: []byte("walk"),
},
&analysis.Token{
Term: []byte("in"),
},
&analysis.Token{
Term: []byte("the"),
},
&analysis.Token{
Term: []byte("park"),
},
}
cache := registry.NewCache()
stopListConfig := map[string]interface{}{
"type": tokenmap.Name,
"tokens": []interface{}{"a", "in", "the"},
}
_, err := cache.DefineTokenMap("stop_test", stopListConfig)
if err != nil {
b.Fatal(err)
}
stopConfig := map[string]interface{}{
"type": "stop_tokens",
"stop_token_map": "stop_test",
}
stopFilter, err := cache.DefineTokenFilter("stop_test", stopConfig)
if err != nil {
b.Fatal(err)
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
stopFilter.Filter(inputTokenStream)
}
}
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