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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 length
import (
"testing"
"github.com/blevesearch/bleve/analysis"
)
func TestLengthFilter(t *testing.T) {
inputTokenStream := analysis.TokenStream{
&analysis.Token{
Term: []byte("1"),
},
&analysis.Token{
Term: []byte("two"),
},
&analysis.Token{
Term: []byte("three"),
},
}
lengthFilter := NewLengthFilter(3, 4)
ouputTokenStream := lengthFilter.Filter(inputTokenStream)
if len(ouputTokenStream) != 1 {
t.Fatalf("expected 1 output token")
}
if string(ouputTokenStream[0].Term) != "two" {
t.Errorf("expected term `two`, got `%s`", ouputTokenStream[0].Term)
}
}
func TestLengthFilterNoMax(t *testing.T) {
inputTokenStream := analysis.TokenStream{
&analysis.Token{
Term: []byte("1"),
},
&analysis.Token{
Term: []byte("two"),
},
&analysis.Token{
Term: []byte("three"),
},
}
lengthFilter := NewLengthFilter(3, -1)
ouputTokenStream := lengthFilter.Filter(inputTokenStream)
if len(ouputTokenStream) != 2 {
t.Fatalf("expected 2 output token")
}
if string(ouputTokenStream[0].Term) != "two" {
t.Errorf("expected term `two`, got `%s`", ouputTokenStream[0].Term)
}
if string(ouputTokenStream[1].Term) != "three" {
t.Errorf("expected term `three`, got `%s`", ouputTokenStream[0].Term)
}
}
func TestLengthFilterNoMin(t *testing.T) {
inputTokenStream := analysis.TokenStream{
&analysis.Token{
Term: []byte("1"),
},
&analysis.Token{
Term: []byte("two"),
},
&analysis.Token{
Term: []byte("three"),
},
}
lengthFilter := NewLengthFilter(-1, 4)
ouputTokenStream := lengthFilter.Filter(inputTokenStream)
if len(ouputTokenStream) != 2 {
t.Fatalf("expected 2 output token")
}
if string(ouputTokenStream[0].Term) != "1" {
t.Errorf("expected term `1`, got `%s`", ouputTokenStream[0].Term)
}
if string(ouputTokenStream[1].Term) != "two" {
t.Errorf("expected term `two`, got `%s`", ouputTokenStream[0].Term)
}
}
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