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bleve/search/searchers/search_disjunction_test.go
Marty Schoch 1aacd9bad5 changed approach
IndexInternalID is now []byte
this is still opaque, and should still work for any future
index implementations as it is a least common denominator
choice, all implementations must internally represent the
id as []byte at some point for storage to disk
2016-08-01 14:26:50 -04:00

208 lines
5.4 KiB
Go

// 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 searchers
import (
"testing"
"github.com/blevesearch/bleve/index"
"github.com/blevesearch/bleve/search"
)
func TestDisjunctionSearch(t *testing.T) {
twoDocIndexReader, err := twoDocIndex.Reader()
if err != nil {
t.Error(err)
}
defer func() {
err := twoDocIndexReader.Close()
if err != nil {
t.Fatal(err)
}
}()
martyTermSearcher, err := NewTermSearcher(twoDocIndexReader, "marty", "name", 1.0, true)
if err != nil {
t.Fatal(err)
}
dustinTermSearcher, err := NewTermSearcher(twoDocIndexReader, "dustin", "name", 1.0, true)
if err != nil {
t.Fatal(err)
}
martyOrDustinSearcher, err := NewDisjunctionSearcher(twoDocIndexReader, []search.Searcher{martyTermSearcher, dustinTermSearcher}, 0, true)
if err != nil {
t.Fatal(err)
}
martyTermSearcher2, err := NewTermSearcher(twoDocIndexReader, "marty", "name", 1.0, true)
if err != nil {
t.Fatal(err)
}
dustinTermSearcher2, err := NewTermSearcher(twoDocIndexReader, "dustin", "name", 1.0, true)
if err != nil {
t.Fatal(err)
}
martyOrDustinSearcher2, err := NewDisjunctionSearcher(twoDocIndexReader, []search.Searcher{martyTermSearcher2, dustinTermSearcher2}, 0, true)
if err != nil {
t.Fatal(err)
}
raviTermSearcher, err := NewTermSearcher(twoDocIndexReader, "ravi", "name", 1.0, true)
if err != nil {
t.Fatal(err)
}
nestedRaviOrMartyOrDustinSearcher, err := NewDisjunctionSearcher(twoDocIndexReader, []search.Searcher{raviTermSearcher, martyOrDustinSearcher2}, 0, true)
if err != nil {
t.Fatal(err)
}
tests := []struct {
searcher search.Searcher
results []*search.DocumentMatchInternal
}{
{
searcher: martyOrDustinSearcher,
results: []*search.DocumentMatchInternal{
{
ID: index.IndexInternalID("1"),
Score: 0.6775110856165737,
},
{
ID: index.IndexInternalID("3"),
Score: 0.6775110856165737,
},
},
},
// test a nested disjunction
{
searcher: nestedRaviOrMartyOrDustinSearcher,
results: []*search.DocumentMatchInternal{
{
ID: index.IndexInternalID("1"),
Score: 0.2765927424732821,
},
{
ID: index.IndexInternalID("3"),
Score: 0.2765927424732821,
},
{
ID: index.IndexInternalID("4"),
Score: 0.5531854849465642,
},
},
},
}
for testIndex, test := range tests {
defer func() {
err := test.searcher.Close()
if err != nil {
t.Fatal(err)
}
}()
next, err := test.searcher.Next(nil)
i := 0
for err == nil && next != nil {
if i < len(test.results) {
if !next.ID.Equals(test.results[i].ID) {
t.Errorf("expected result %d to have id %s got %s for test %d", i, test.results[i].ID, next.ID, testIndex)
}
if !scoresCloseEnough(next.Score, test.results[i].Score) {
t.Errorf("expected result %d to have score %v got %v for test %d", i, test.results[i].Score, next.Score, testIndex)
t.Logf("scoring explanation: %s", next.Expl)
}
}
next, err = test.searcher.Next(nil)
i++
}
if err != nil {
t.Fatalf("error iterating searcher: %v for test %d", err, testIndex)
}
if len(test.results) != i {
t.Errorf("expected %d results got %d for test %d", len(test.results), i, testIndex)
}
}
}
func TestDisjunctionAdvance(t *testing.T) {
twoDocIndexReader, err := twoDocIndex.Reader()
if err != nil {
t.Error(err)
}
defer func() {
err := twoDocIndexReader.Close()
if err != nil {
t.Fatal(err)
}
}()
martyTermSearcher, err := NewTermSearcher(twoDocIndexReader, "marty", "name", 1.0, true)
if err != nil {
t.Fatal(err)
}
dustinTermSearcher, err := NewTermSearcher(twoDocIndexReader, "dustin", "name", 1.0, true)
if err != nil {
t.Fatal(err)
}
martyOrDustinSearcher, err := NewDisjunctionSearcher(twoDocIndexReader, []search.Searcher{martyTermSearcher, dustinTermSearcher}, 0, true)
if err != nil {
t.Fatal(err)
}
match, err := martyOrDustinSearcher.Advance(index.IndexInternalID("3"), nil)
if err != nil {
t.Errorf("unexpected error: %v", err)
}
if match == nil {
t.Errorf("expected 3, got nil")
}
}
func TestDisjunctionSearchTooMany(t *testing.T) {
// set to max to a low non-zero value
DisjunctionMaxClauseCount = 2
defer func() {
// reset it after the test
DisjunctionMaxClauseCount = 0
}()
twoDocIndexReader, err := twoDocIndex.Reader()
if err != nil {
t.Error(err)
}
defer func() {
err := twoDocIndexReader.Close()
if err != nil {
t.Fatal(err)
}
}()
martyTermSearcher, err := NewTermSearcher(twoDocIndexReader, "marty", "name", 1.0, true)
if err != nil {
t.Fatal(err)
}
dustinTermSearcher, err := NewTermSearcher(twoDocIndexReader, "dustin", "name", 1.0, true)
if err != nil {
t.Fatal(err)
}
steveTermSearcher, err := NewTermSearcher(twoDocIndexReader, "steve", "name", 1.0, true)
if err != nil {
t.Fatal(err)
}
_, err = NewDisjunctionSearcher(twoDocIndexReader, []search.Searcher{martyTermSearcher, dustinTermSearcher, steveTermSearcher}, 0, true)
if err == nil {
t.Fatal(err)
}
}