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

analysis/token/reverse/reverse_test.go

@@ -0,0 +1,184 @@
+//  Copyright (c) 2019 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 reverse
+
+import (
+	"bytes"
+	"testing"
+
+	"github.com/blevesearch/bleve/v2/analysis"
+)
+
+func TestReverseFilter(t *testing.T) {
+	inputTokenStream := analysis.TokenStream{
+		&analysis.Token{},
+		&analysis.Token{
+			Term: []byte("one"),
+		},
+		&analysis.Token{
+			Term: []byte("TWo"),
+		},
+		&analysis.Token{
+			Term: []byte("thRee"),
+		},
+		&analysis.Token{
+			Term: []byte("four's"),
+		},
+		&analysis.Token{
+			Term: []byte("what's this in reverse"),
+		},
+		&analysis.Token{
+			Term: []byte("œ∑´®†"),
+		},
+		&analysis.Token{
+			Term: []byte("İȺȾCAT÷≥≤µ123"),
+		},
+		&analysis.Token{
+			Term: []byte("!@#$%^&*()"),
+		},
+		&analysis.Token{
+			Term: []byte("cafés"),
+		},
+		&analysis.Token{
+			Term: []byte("¿Dónde estás?"),
+		},
+		&analysis.Token{
+			Term: []byte("Me gustaría una cerveza."),
+		},
+	}
+
+	expectedTokenStream := analysis.TokenStream{
+		&analysis.Token{},
+		&analysis.Token{
+			Term: []byte("eno"),
+		},
+		&analysis.Token{
+			Term: []byte("oWT"),
+		},
+		&analysis.Token{
+			Term: []byte("eeRht"),
+		},
+		&analysis.Token{
+			Term: []byte("s'ruof"),
+		},
+		&analysis.Token{
+			Term: []byte("esrever ni siht s'tahw"),
+		},
+		&analysis.Token{
+			Term: []byte("†®´∑œ"),
+		},
+		&analysis.Token{
+			Term: []byte("321µ≤≥÷TACȾȺİ"),
+		},
+		&analysis.Token{
+			Term: []byte(")(*&^%$#@!"),
+		},
+		&analysis.Token{
+			Term: []byte("séfac"),
+		},
+		&analysis.Token{
+			Term: []byte("?sátse ednóD¿"),
+		},
+		&analysis.Token{
+			Term: []byte(".azevrec anu aíratsug eM"),
+		},
+	}
+
+	filter := NewReverseFilter()
+	outputTokenStream := filter.Filter(inputTokenStream)
+	for i := 0; i < len(expectedTokenStream); i++ {
+		if !bytes.Equal(outputTokenStream[i].Term, expectedTokenStream[i].Term) {
+			t.Errorf("[%d] expected %s got %s",
+				i+1, expectedTokenStream[i].Term, outputTokenStream[i].Term)
+		}
+	}
+}
+
+func BenchmarkReverseFilter(b *testing.B) {
+	input := analysis.TokenStream{
+		&analysis.Token{
+			Term: []byte("A"),
+		},
+		&analysis.Token{
+			Term: []byte("boiling"),
+		},
+		&analysis.Token{
+			Term: []byte("liquid"),
+		},
+		&analysis.Token{
+			Term: []byte("expanding"),
+		},
+		&analysis.Token{
+			Term: []byte("vapor"),
+		},
+		&analysis.Token{
+			Term: []byte("explosion"),
+		},
+		&analysis.Token{
+			Term: []byte("caused"),
+		},
+		&analysis.Token{
+			Term: []byte("by"),
+		},
+		&analysis.Token{
+			Term: []byte("the"),
+		},
+		&analysis.Token{
+			Term: []byte("rupture"),
+		},
+		&analysis.Token{
+			Term: []byte("of"),
+		},
+		&analysis.Token{
+			Term: []byte("a"),
+		},
+		&analysis.Token{
+			Term: []byte("vessel"),
+		},
+		&analysis.Token{
+			Term: []byte("containing"),
+		},
+		&analysis.Token{
+			Term: []byte("pressurized"),
+		},
+		&analysis.Token{
+			Term: []byte("liquid"),
+		},
+		&analysis.Token{
+			Term: []byte("above"),
+		},
+		&analysis.Token{
+			Term: []byte("its"),
+		},
+		&analysis.Token{
+			Term: []byte("boiling"),
+		},
+		&analysis.Token{
+			Term: []byte("point"),
+		},
+		&analysis.Token{
+			Term: []byte("İȺȾCAT"),
+		},
+		&analysis.Token{
+			Term: []byte("Me gustaría una cerveza."),
+		},
+	}
+	filter := NewReverseFilter()
+
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		filter.Filter(input)
+	}
+}