104 lines
2.3 KiB
Go
104 lines
2.3 KiB
Go
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// Copyright (c) 2017 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 de
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import (
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"reflect"
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"testing"
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"github.com/blevesearch/bleve/analysis"
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)
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func TestGermanNormalizeFilter(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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// Tests that a/o/u + e is equivalent to the umlaut form
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{
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input: analysis.TokenStream{
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&analysis.Token{
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Term: []byte("Schaltflächen"),
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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("Schaltflachen"),
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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("Schaltflaechen"),
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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("Schaltflachen"),
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},
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},
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},
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// Tests the specific heuristic that ue is not folded after a vowel or q.
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{
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input: analysis.TokenStream{
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&analysis.Token{
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Term: []byte("dauer"),
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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("dauer"),
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},
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},
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},
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// Tests german specific folding of sharp-s
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{
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input: analysis.TokenStream{
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&analysis.Token{
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Term: []byte("weißbier"),
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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("weissbier"),
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},
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},
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},
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// empty
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{
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input: analysis.TokenStream{
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&analysis.Token{
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Term: []byte(""),
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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(""),
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},
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},
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},
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}
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germanNormalizeFilter := NewGermanNormalizeFilter()
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for _, test := range tests {
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actual := germanNormalizeFilter.Filter(test.input)
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if !reflect.DeepEqual(actual, test.output) {
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t.Errorf("expected %#v, got %#v", test.output, actual)
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t.Errorf("expected %s(% x), got %s(% x)", test.output[0].Term, test.output[0].Term, actual[0].Term, actual[0].Term)
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}
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}
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}
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