Add tests for fuzzy search
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130
search/searchers/search_fuzzy_test.go
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130
search/searchers/search_fuzzy_test.go
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// Copyright (c) 2015 Couchbase, Inc.
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
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// except in compliance with the License. You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software distributed under the
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// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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// either express or implied. See the License for the specific language governing permissions
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// and limitations under the License.
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package searchers
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import (
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"testing"
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"github.com/blevesearch/bleve/search"
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)
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func TestFuzzySearch(t *testing.T) {
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twoDocIndexReader, err := twoDocIndex.Reader()
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if err != nil {
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t.Error(err)
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}
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defer func() {
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err := twoDocIndexReader.Close()
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if err != nil {
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t.Fatal(err)
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}
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}()
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fuzzySearcherbeet, err := NewFuzzySearcher(twoDocIndexReader, "beet", 0, 1, "desc", 1.0, true)
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if err != nil {
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t.Fatal(err)
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}
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fuzzySearcherdouches, err := NewFuzzySearcher(twoDocIndexReader, "douches", 0, 2, "desc", 1.0, true)
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if err != nil {
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t.Fatal(err)
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}
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fuzzySearcheraplee, err := NewFuzzySearcher(twoDocIndexReader, "aplee", 0, 2, "desc", 1.0, true)
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if err != nil {
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t.Fatal(err)
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}
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fuzzySearcherprefix, err := NewFuzzySearcher(twoDocIndexReader, "water", 3, 2, "desc", 1.0, true)
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if err != nil {
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t.Fatal(err)
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}
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tests := []struct {
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searcher search.Searcher
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results []*search.DocumentMatch
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}{
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{
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searcher: fuzzySearcherbeet,
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results: []*search.DocumentMatch{
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&search.DocumentMatch{
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ID: "1",
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Score: 1.0,
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},
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&search.DocumentMatch{
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ID: "2",
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Score: 0.5,
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},
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&search.DocumentMatch{
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ID: "3",
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Score: 0.5,
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},
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&search.DocumentMatch{
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ID: "4",
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Score: 0.9999999838027345,
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},
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},
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},
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{
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searcher: fuzzySearcherdouches,
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results: []*search.DocumentMatch{},
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},
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{
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searcher: fuzzySearcheraplee,
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results: []*search.DocumentMatch{
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&search.DocumentMatch{
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ID: "3",
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Score: 0.9581453659370776,
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},
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},
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},
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{
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searcher: fuzzySearcherprefix,
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results: []*search.DocumentMatch{
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&search.DocumentMatch{
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ID: "5",
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Score: 1.916290731874155,
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},
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},
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},
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}
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for testIndex, test := range tests {
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defer func() {
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err := test.searcher.Close()
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if err != nil {
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t.Fatal(err)
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}
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}()
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next, err := test.searcher.Next()
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i := 0
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for err == nil && next != nil {
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if i < len(test.results) {
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if next.ID != test.results[i].ID {
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t.Errorf("expected result %d to have id %s got %s for test %d", i, test.results[i].ID, next.ID, testIndex)
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}
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if next.Score != test.results[i].Score {
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t.Errorf("expected result %d to have score %v got %v for test %d", i, test.results[i].Score, next.Score, testIndex)
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t.Logf("scoring explanation: %s", next.Expl)
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}
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}
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next, err = test.searcher.Next()
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i++
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}
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if err != nil {
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t.Fatalf("error iterating searcher: %v for test %d", err, testIndex)
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}
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if len(test.results) != i {
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t.Errorf("expected %d results got %d for test %d", len(test.results), i, testIndex)
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}
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}
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}
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