snapshot of https://github.com/blevesearch/bleve.git (master, 2026-09-15; blobs > 131072B omitted)

analysis/token/compound/dict_test.go

@@ -0,0 +1,187 @@
+//  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 compound
+
+import (
+	"reflect"
+	"testing"
+
+	"github.com/blevesearch/bleve/v2/analysis"
+	"github.com/blevesearch/bleve/v2/analysis/tokenmap"
+	"github.com/blevesearch/bleve/v2/registry"
+)
+
+func TestStopWordsFilter(t *testing.T) {
+
+	inputTokenStream := analysis.TokenStream{
+		&analysis.Token{
+			Term:     []byte("i"),
+			Start:    0,
+			End:      1,
+			Position: 1,
+		},
+		&analysis.Token{
+			Term:     []byte("like"),
+			Start:    2,
+			End:      6,
+			Position: 2,
+		},
+		&analysis.Token{
+			Term:     []byte("to"),
+			Start:    7,
+			End:      9,
+			Position: 3,
+		},
+		&analysis.Token{
+			Term:     []byte("play"),
+			Start:    10,
+			End:      14,
+			Position: 4,
+		},
+		&analysis.Token{
+			Term:     []byte("softball"),
+			Start:    15,
+			End:      23,
+			Position: 5,
+		},
+	}
+
+	expectedTokenStream := analysis.TokenStream{
+		&analysis.Token{
+			Term:     []byte("i"),
+			Start:    0,
+			End:      1,
+			Position: 1,
+		},
+		&analysis.Token{
+			Term:     []byte("like"),
+			Start:    2,
+			End:      6,
+			Position: 2,
+		},
+		&analysis.Token{
+			Term:     []byte("to"),
+			Start:    7,
+			End:      9,
+			Position: 3,
+		},
+		&analysis.Token{
+			Term:     []byte("play"),
+			Start:    10,
+			End:      14,
+			Position: 4,
+		},
+		&analysis.Token{
+			Term:     []byte("softball"),
+			Start:    15,
+			End:      23,
+			Position: 5,
+		},
+		&analysis.Token{
+			Term:     []byte("soft"),
+			Start:    15,
+			End:      19,
+			Position: 5,
+		},
+		&analysis.Token{
+			Term:     []byte("ball"),
+			Start:    19,
+			End:      23,
+			Position: 5,
+		},
+	}
+
+	cache := registry.NewCache()
+	dictListConfig := map[string]interface{}{
+		"type":   tokenmap.Name,
+		"tokens": []interface{}{"factor", "soft", "ball", "team"},
+	}
+	_, err := cache.DefineTokenMap("dict_test", dictListConfig)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	dictConfig := map[string]interface{}{
+		"type":           "dict_compound",
+		"dict_token_map": "dict_test",
+	}
+	dictFilter, err := cache.DefineTokenFilter("dict_test", dictConfig)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	ouputTokenStream := dictFilter.Filter(inputTokenStream)
+	if !reflect.DeepEqual(ouputTokenStream, expectedTokenStream) {
+		t.Errorf("expected %#v got %#v", expectedTokenStream, ouputTokenStream)
+	}
+}
+
+func TestStopWordsFilterLongestMatch(t *testing.T) {
+
+	inputTokenStream := analysis.TokenStream{
+		&analysis.Token{
+			Term:     []byte("softestball"),
+			Start:    0,
+			End:      11,
+			Position: 1,
+		},
+	}
+
+	expectedTokenStream := analysis.TokenStream{
+		&analysis.Token{
+			Term:     []byte("softestball"),
+			Start:    0,
+			End:      11,
+			Position: 1,
+		},
+		&analysis.Token{
+			Term:     []byte("softest"),
+			Start:    0,
+			End:      7,
+			Position: 1,
+		},
+		&analysis.Token{
+			Term:     []byte("ball"),
+			Start:    7,
+			End:      11,
+			Position: 1,
+		},
+	}
+
+	cache := registry.NewCache()
+	dictListConfig := map[string]interface{}{
+		"type":   tokenmap.Name,
+		"tokens": []interface{}{"soft", "softest", "ball"},
+	}
+	_, err := cache.DefineTokenMap("dict_test", dictListConfig)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	dictConfig := map[string]interface{}{
+		"type":               "dict_compound",
+		"dict_token_map":     "dict_test",
+		"only_longest_match": true,
+	}
+	dictFilter, err := cache.DefineTokenFilter("dict_test", dictConfig)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	ouputTokenStream := dictFilter.Filter(inputTokenStream)
+	if !reflect.DeepEqual(ouputTokenStream, expectedTokenStream) {
+		t.Errorf("expected %#v got %#v", expectedTokenStream, ouputTokenStream)
+	}
+}