Adding upstream version 2.5.1.
Signed-off-by: Daniel Baumann <daniel@debian.org>
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783 changed files with 150650 additions and 0 deletions
416
analysis/token/shingle/shingle_test.go
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416
analysis/token/shingle/shingle_test.go
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// Copyright (c) 2014 Couchbase, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package shingle
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import (
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"reflect"
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"testing"
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"github.com/blevesearch/bleve/v2/analysis"
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)
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func TestShingleFilter(t *testing.T) {
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tests := []struct {
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min int
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max int
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outputOriginal bool
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separator string
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filler string
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input analysis.TokenStream
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output analysis.TokenStream
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}{
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{
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min: 2,
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max: 2,
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outputOriginal: false,
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separator: " ",
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filler: "_",
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input: analysis.TokenStream{
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&analysis.Token{
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Term: []byte("the"),
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},
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&analysis.Token{
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Term: []byte("quick"),
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},
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&analysis.Token{
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Term: []byte("brown"),
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},
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&analysis.Token{
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Term: []byte("fox"),
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},
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},
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output: analysis.TokenStream{
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&analysis.Token{
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Term: []byte("the quick"),
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Type: analysis.Shingle,
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},
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&analysis.Token{
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Term: []byte("quick brown"),
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Type: analysis.Shingle,
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},
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&analysis.Token{
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Term: []byte("brown fox"),
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Type: analysis.Shingle,
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},
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},
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},
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{
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min: 3,
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max: 3,
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outputOriginal: false,
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separator: " ",
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filler: "_",
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input: analysis.TokenStream{
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&analysis.Token{
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Term: []byte("the"),
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},
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&analysis.Token{
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Term: []byte("quick"),
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},
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&analysis.Token{
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Term: []byte("brown"),
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},
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&analysis.Token{
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Term: []byte("fox"),
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},
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},
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output: analysis.TokenStream{
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&analysis.Token{
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Term: []byte("the quick brown"),
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Type: analysis.Shingle,
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},
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&analysis.Token{
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Term: []byte("quick brown fox"),
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Type: analysis.Shingle,
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},
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},
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},
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{
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min: 2,
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max: 3,
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outputOriginal: false,
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separator: " ",
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filler: "_",
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input: analysis.TokenStream{
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&analysis.Token{
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Term: []byte("the"),
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},
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&analysis.Token{
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Term: []byte("quick"),
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},
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&analysis.Token{
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Term: []byte("brown"),
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},
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&analysis.Token{
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Term: []byte("fox"),
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},
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},
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output: analysis.TokenStream{
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&analysis.Token{
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Term: []byte("the quick"),
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Type: analysis.Shingle,
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},
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&analysis.Token{
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Term: []byte("quick brown"),
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Type: analysis.Shingle,
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},
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&analysis.Token{
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Term: []byte("the quick brown"),
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Type: analysis.Shingle,
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},
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&analysis.Token{
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Term: []byte("brown fox"),
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Type: analysis.Shingle,
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},
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&analysis.Token{
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Term: []byte("quick brown fox"),
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Type: analysis.Shingle,
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},
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},
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},
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{
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min: 3,
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max: 3,
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outputOriginal: false,
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separator: " ",
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filler: "_",
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input: analysis.TokenStream{
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&analysis.Token{
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Term: []byte("ugly"),
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Position: 1,
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},
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&analysis.Token{
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Term: []byte("quick"),
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Position: 3,
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},
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&analysis.Token{
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Term: []byte("brown"),
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Position: 4,
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},
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},
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output: analysis.TokenStream{
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&analysis.Token{
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Term: []byte("ugly _ quick"),
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Type: analysis.Shingle,
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Position: 1,
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},
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&analysis.Token{
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Term: []byte("_ quick brown"),
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Type: analysis.Shingle,
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Position: 3,
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},
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},
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},
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{
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min: 1,
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max: 5,
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outputOriginal: false,
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separator: " ",
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filler: "_",
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input: analysis.TokenStream{
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&analysis.Token{
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Term: []byte("test"),
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Position: 1,
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},
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&analysis.Token{
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Term: []byte("text"),
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Position: 2,
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},
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// token 3 removed by stop filter
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&analysis.Token{
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Term: []byte("see"),
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Position: 4,
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},
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&analysis.Token{
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Term: []byte("shingles"),
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Position: 5,
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},
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},
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output: analysis.TokenStream{
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&analysis.Token{
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Term: []byte("test"),
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Type: analysis.Shingle,
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Position: 1,
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},
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&analysis.Token{
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Term: []byte("text"),
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Type: analysis.Shingle,
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Position: 2,
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},
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&analysis.Token{
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Term: []byte("test text"),
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Type: analysis.Shingle,
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Position: 1,
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},
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&analysis.Token{
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Term: []byte("_"),
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Type: analysis.Shingle,
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},
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&analysis.Token{
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Term: []byte("text _"),
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Type: analysis.Shingle,
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Position: 2,
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},
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&analysis.Token{
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Term: []byte("test text _"),
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Type: analysis.Shingle,
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Position: 1,
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},
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&analysis.Token{
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Term: []byte("see"),
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Type: analysis.Shingle,
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Position: 4,
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},
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&analysis.Token{
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Term: []byte("_ see"),
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Type: analysis.Shingle,
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Position: 4,
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},
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&analysis.Token{
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Term: []byte("text _ see"),
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Type: analysis.Shingle,
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Position: 2,
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},
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&analysis.Token{
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Term: []byte("test text _ see"),
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Type: analysis.Shingle,
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Position: 1,
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},
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&analysis.Token{
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Term: []byte("shingles"),
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Type: analysis.Shingle,
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Position: 5,
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},
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&analysis.Token{
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Term: []byte("see shingles"),
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Type: analysis.Shingle,
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Position: 4,
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},
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&analysis.Token{
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Term: []byte("_ see shingles"),
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Type: analysis.Shingle,
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Position: 4,
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},
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&analysis.Token{
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Term: []byte("text _ see shingles"),
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Type: analysis.Shingle,
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Position: 2,
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},
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&analysis.Token{
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Term: []byte("test text _ see shingles"),
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Type: analysis.Shingle,
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Position: 1,
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},
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},
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},
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{
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min: 2,
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max: 2,
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outputOriginal: true,
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separator: " ",
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filler: "_",
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input: analysis.TokenStream{
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&analysis.Token{
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Term: []byte("the"),
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},
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&analysis.Token{
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Term: []byte("quick"),
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},
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&analysis.Token{
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Term: []byte("brown"),
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},
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&analysis.Token{
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Term: []byte("fox"),
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},
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},
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output: analysis.TokenStream{
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&analysis.Token{
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Term: []byte("the"),
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},
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&analysis.Token{
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Term: []byte("quick"),
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},
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&analysis.Token{
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Term: []byte("the quick"),
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Type: analysis.Shingle,
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},
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&analysis.Token{
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Term: []byte("brown"),
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},
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&analysis.Token{
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Term: []byte("quick brown"),
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Type: analysis.Shingle,
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},
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&analysis.Token{
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Term: []byte("fox"),
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},
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&analysis.Token{
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Term: []byte("brown fox"),
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Type: analysis.Shingle,
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},
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},
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},
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}
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for _, test := range tests {
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shingleFilter := NewShingleFilter(test.min, test.max, test.outputOriginal, test.separator, test.filler)
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actual := shingleFilter.Filter(test.input)
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if !reflect.DeepEqual(actual, test.output) {
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t.Errorf("expected %s, got %s", test.output, actual)
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}
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}
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}
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// TestShingleFilterBug431 tests that the shingle filter is in fact stateless
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// by making using the same filter instance twice and ensuring we do not get
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// contaminated output
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func TestShingleFilterBug431(t *testing.T) {
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tests := []struct {
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input analysis.TokenStream
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output analysis.TokenStream
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}{
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{
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input: analysis.TokenStream{
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&analysis.Token{
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Term: []byte("the"),
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},
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&analysis.Token{
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Term: []byte("quick"),
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},
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&analysis.Token{
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Term: []byte("brown"),
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},
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&analysis.Token{
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Term: []byte("fox"),
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},
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},
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output: analysis.TokenStream{
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&analysis.Token{
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Term: []byte("the quick"),
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Type: analysis.Shingle,
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},
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&analysis.Token{
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Term: []byte("quick brown"),
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Type: analysis.Shingle,
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},
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&analysis.Token{
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Term: []byte("brown fox"),
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Type: analysis.Shingle,
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},
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},
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},
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{
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input: analysis.TokenStream{
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&analysis.Token{
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Term: []byte("a"),
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},
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&analysis.Token{
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Term: []byte("sad"),
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},
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&analysis.Token{
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Term: []byte("dirty"),
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},
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&analysis.Token{
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Term: []byte("sock"),
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},
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},
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output: analysis.TokenStream{
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&analysis.Token{
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Term: []byte("a sad"),
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Type: analysis.Shingle,
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},
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&analysis.Token{
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Term: []byte("sad dirty"),
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Type: analysis.Shingle,
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},
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&analysis.Token{
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Term: []byte("dirty sock"),
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Type: analysis.Shingle,
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},
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},
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},
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}
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shingleFilter := NewShingleFilter(2, 2, false, " ", "_")
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for _, test := range tests {
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actual := shingleFilter.Filter(test.input)
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if !reflect.DeepEqual(actual, test.output) {
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t.Errorf("expected %s, got %s", test.output, actual)
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}
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}
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}
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