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search_test.go
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search_test.go
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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 bleve
import (
"encoding/json"
"fmt"
index "github.com/blevesearch/bleve_index_api"
"reflect"
"strconv"
"strings"
"testing"
"time"
"github.com/blevesearch/bleve/v2/analysis"
"github.com/blevesearch/bleve/v2/analysis/analyzer/custom"
"github.com/blevesearch/bleve/v2/analysis/analyzer/keyword"
"github.com/blevesearch/bleve/v2/analysis/analyzer/standard"
regexp_char_filter "github.com/blevesearch/bleve/v2/analysis/char/regexp"
"github.com/blevesearch/bleve/v2/analysis/token/length"
"github.com/blevesearch/bleve/v2/analysis/token/lowercase"
"github.com/blevesearch/bleve/v2/analysis/token/shingle"
"github.com/blevesearch/bleve/v2/analysis/tokenizer/single"
"github.com/blevesearch/bleve/v2/analysis/tokenizer/whitespace"
"github.com/blevesearch/bleve/v2/document"
"github.com/blevesearch/bleve/v2/index/scorch"
"github.com/blevesearch/bleve/v2/index/upsidedown"
"github.com/blevesearch/bleve/v2/mapping"
"github.com/blevesearch/bleve/v2/search"
"github.com/blevesearch/bleve/v2/search/highlight/highlighter/ansi"
"github.com/blevesearch/bleve/v2/search/highlight/highlighter/html"
"github.com/blevesearch/bleve/v2/search/query"
)
func TestSearchResultString(t *testing.T) {
tests := []struct {
result *SearchResult
str string
}{
{
result: &SearchResult{
Request: &SearchRequest{
Size: 10,
},
Total: 5,
Took: 1 * time.Second,
Hits: search.DocumentMatchCollection{
&search.DocumentMatch{},
&search.DocumentMatch{},
&search.DocumentMatch{},
&search.DocumentMatch{},
&search.DocumentMatch{},
},
},
str: "5 matches, showing 1 through 5, took 1s",
},
{
result: &SearchResult{
Request: &SearchRequest{
Size: 0,
},
Total: 5,
Hits: search.DocumentMatchCollection{},
},
str: "5 matches",
},
{
result: &SearchResult{
Request: &SearchRequest{
Size: 10,
},
Total: 0,
Hits: search.DocumentMatchCollection{},
},
str: "No matches",
},
}
for _, test := range tests {
srstring := test.result.String()
if !strings.HasPrefix(srstring, test.str) {
t.Errorf("expected to start %s, got %s", test.str, srstring)
}
}
}
func TestSearchResultMerge(t *testing.T) {
l := &SearchResult{
Status: &SearchStatus{
Total: 1,
Successful: 1,
Errors: make(map[string]error),
},
Total: 1,
MaxScore: 1,
Hits: search.DocumentMatchCollection{
&search.DocumentMatch{
ID: "a",
Score: 1,
},
},
}
r := &SearchResult{
Status: &SearchStatus{
Total: 1,
Successful: 1,
Errors: make(map[string]error),
},
Total: 1,
MaxScore: 2,
Hits: search.DocumentMatchCollection{
&search.DocumentMatch{
ID: "b",
Score: 2,
},
},
}
expected := &SearchResult{
Status: &SearchStatus{
Total: 2,
Successful: 2,
Errors: make(map[string]error),
},
Total: 2,
MaxScore: 2,
Hits: search.DocumentMatchCollection{
&search.DocumentMatch{
ID: "a",
Score: 1,
},
&search.DocumentMatch{
ID: "b",
Score: 2,
},
},
}
l.Merge(r)
if !reflect.DeepEqual(l, expected) {
t.Errorf("expected %#v, got %#v", expected, l)
}
}
func TestUnmarshalingSearchResult(t *testing.T) {
searchResponse := []byte(`{
"status":{
"total":1,
"failed":1,
"successful":0,
"errors":{
"default_index_362ce020b3d62b13_348f5c3c":"context deadline exceeded"
}
},
"request":{
"query":{
"match":"emp",
"field":"type",
"boost":1,
"prefix_length":0,
"fuzziness":0
},
"size":10000000,
"from":0,
"highlight":null,
"fields":[],
"facets":null,
"explain":false
},
"hits":null,
"total_hits":0,
"max_score":0,
"took":0,
"facets":null
}`)
rv := &SearchResult{
Status: &SearchStatus{
Errors: make(map[string]error),
},
}
err = json.Unmarshal(searchResponse, rv)
if err != nil {
t.Error(err)
}
if len(rv.Status.Errors) != 1 {
t.Errorf("expected 1 error, got %d", len(rv.Status.Errors))
}
}
func TestFacetNumericDateRangeRequests(t *testing.T) {
var drMissingErr = fmt.Errorf("date range query must specify either start, end or both for range name 'testName'")
var nrMissingErr = fmt.Errorf("numeric range query must specify either min, max or both for range name 'testName'")
var drNrErr = fmt.Errorf("facet can only conain numeric ranges or date ranges, not both")
var drNameDupErr = fmt.Errorf("date ranges contains duplicate name 'testName'")
var nrNameDupErr = fmt.Errorf("numeric ranges contains duplicate name 'testName'")
value := float64(5)
tests := []struct {
facet *FacetRequest
result error
}{
{
facet: &FacetRequest{
Field: "Date_Range_Success_With_StartEnd",
Size: 1,
DateTimeRanges: []*dateTimeRange{
{Name: "testName", Start: time.Unix(0, 0), End: time.Now()},
},
},
result: nil,
},
{
facet: &FacetRequest{
Field: "Date_Range_Success_With_Start",
Size: 1,
DateTimeRanges: []*dateTimeRange{
{Name: "testName", Start: time.Unix(0, 0)},
},
},
result: nil,
},
{
facet: &FacetRequest{
Field: "Date_Range_Success_With_End",
Size: 1,
DateTimeRanges: []*dateTimeRange{
{Name: "testName", End: time.Now()},
},
},
result: nil,
},
{
facet: &FacetRequest{
Field: "Numeric_Range_Success_With_MinMax",
Size: 1,
NumericRanges: []*numericRange{
{Name: "testName", Min: &value, Max: &value},
},
},
result: nil,
},
{
facet: &FacetRequest{
Field: "Numeric_Range_Success_With_Min",
Size: 1,
NumericRanges: []*numericRange{
{Name: "testName", Min: &value},
},
},
result: nil,
},
{
facet: &FacetRequest{
Field: "Numeric_Range_Success_With_Max",
Size: 1,
NumericRanges: []*numericRange{
{Name: "testName", Max: &value},
},
},
result: nil,
},
{
facet: &FacetRequest{
Field: "Date_Range_Missing_Failure",
Size: 1,
DateTimeRanges: []*dateTimeRange{
{Name: "testName2", Start: time.Unix(0, 0)},
{Name: "testName1", End: time.Now()},
{Name: "testName"},
},
},
result: drMissingErr,
},
{
facet: &FacetRequest{
Field: "Numeric_Range_Missing_Failure",
Size: 1,
NumericRanges: []*numericRange{
{Name: "testName2", Min: &value},
{Name: "testName1", Max: &value},
{Name: "testName"},
},
},
result: nrMissingErr,
},
{
facet: &FacetRequest{
Field: "Numeric_And_DateRanges_Failure",
Size: 1,
NumericRanges: []*numericRange{
{Name: "testName", Max: &value},
},
DateTimeRanges: []*dateTimeRange{
{Name: "testName", End: time.Now()},
},
},
result: drNrErr,
},
{
facet: &FacetRequest{
Field: "Numeric_Range_Name_Repeat_Failure",
Size: 1,
NumericRanges: []*numericRange{
{Name: "testName", Min: &value},
{Name: "testName", Max: &value},
},
},
result: nrNameDupErr,
},
{
facet: &FacetRequest{
Field: "Date_Range_Name_Repeat_Failure",
Size: 1,
DateTimeRanges: []*dateTimeRange{
{Name: "testName", Start: time.Unix(0, 0)},
{Name: "testName", End: time.Now()},
},
},
result: drNameDupErr,
},
}
for _, test := range tests {
result := test.facet.Validate()
if !reflect.DeepEqual(result, test.result) {
t.Errorf("expected %#v, got %#v", test.result, result)
}
}
}
func TestSearchResultFacetsMerge(t *testing.T) {
lowmed := "2010-01-01"
medhi := "2011-01-01"
hihigher := "2012-01-01"
fr := &search.FacetResult{
Field: "birthday",
Total: 100,
Missing: 25,
Other: 25,
DateRanges: []*search.DateRangeFacet{
{
Name: "low",
End: &lowmed,
Count: 25,
},
{
Name: "med",
Count: 24,
Start: &lowmed,
End: &medhi,
},
{
Name: "hi",
Count: 1,
Start: &medhi,
End: &hihigher,
},
},
}
frs := search.FacetResults{
"birthdays": fr,
}
l := &SearchResult{
Status: &SearchStatus{
Total: 10,
Successful: 1,
Errors: make(map[string]error),
},
Total: 10,
MaxScore: 1,
}
r := &SearchResult{
Status: &SearchStatus{
Total: 1,
Successful: 1,
Errors: make(map[string]error),
},
Total: 1,
MaxScore: 2,
Facets: frs,
}
expected := &SearchResult{
Status: &SearchStatus{
Total: 11,
Successful: 2,
Errors: make(map[string]error),
},
Total: 11,
MaxScore: 2,
Facets: frs,
}
l.Merge(r)
if !reflect.DeepEqual(l, expected) {
t.Errorf("expected %#v, got %#v", expected, l)
}
}
func TestMemoryNeededForSearchResult(t *testing.T) {
query := NewTermQuery("blah")
req := NewSearchRequest(query)
var sr SearchResult
expect := sr.Size()
var dm search.DocumentMatch
expect += 10 * dm.Size()
estimate := MemoryNeededForSearchResult(req)
if estimate != uint64(expect) {
t.Errorf("estimate not what is expected: %v != %v", estimate, expect)
}
}
// https://github.com/blevesearch/bleve/issues/954
func TestNestedBooleanSearchers(t *testing.T) {
// create an index with a custom analyzer
idxMapping := NewIndexMapping()
if err := idxMapping.AddCustomAnalyzer("3xbla", map[string]interface{}{
"type": custom.Name,
"tokenizer": whitespace.Name,
"token_filters": []interface{}{lowercase.Name, "stop_en"},
}); err != nil {
t.Fatal(err)
}
idxMapping.DefaultAnalyzer = "3xbla"
tmpIndexPath := createTmpIndexPath(t)
defer cleanupTmpIndexPath(t, tmpIndexPath)
idx, err := New(tmpIndexPath, idxMapping)
if err != nil {
t.Fatal(err)
}
defer func() {
err = idx.Close()
if err != nil {
t.Fatal(err)
}
}()
// create and insert documents as a batch
batch := idx.NewBatch()
matches := 0
for i := 0; i < 100; i++ {
hostname := fmt.Sprintf("planner_hostname_%d", i%5)
metadata := map[string]string{"region": fmt.Sprintf("planner_us-east-%d", i%5)}
// Expected matches
if (hostname == "planner_hostname_1" || hostname == "planner_hostname_2") &&
metadata["region"] == "planner_us-east-1" {
matches++
}
doc := document.NewDocument(strconv.Itoa(i))
doc.Fields = []document.Field{
document.NewTextFieldCustom("hostname", []uint64{}, []byte(hostname),
index.IndexField,
&analysis.Analyzer{
Tokenizer: single.NewSingleTokenTokenizer(),
TokenFilters: []analysis.TokenFilter{
lowercase.NewLowerCaseFilter(),
},
},
),
}
for k, v := range metadata {
doc.AddField(document.NewTextFieldWithIndexingOptions(
fmt.Sprintf("metadata.%s", k), []uint64{}, []byte(v), index.IndexField))
}
doc.CompositeFields = []*document.CompositeField{
document.NewCompositeFieldWithIndexingOptions(
"_all", true, []string{"text"}, []string{},
index.IndexField|index.IncludeTermVectors),
}
if err = batch.IndexAdvanced(doc); err != nil {
t.Fatal(err)
}
}
if err = idx.Batch(batch); err != nil {
t.Fatal(err)
}
que, err := query.ParseQuery([]byte(
`{
"conjuncts": [
{
"must": {
"conjuncts": [
{
"disjuncts": [
{
"match": "planner_hostname_1",
"field": "hostname"
},
{
"match": "planner_hostname_2",
"field": "hostname"
}
]
}
]
}
},
{
"must": {
"conjuncts": [
{
"match": "planner_us-east-1",
"field": "metadata.region"
}
]
}
}
]
}`,
))
if err != nil {
t.Fatal(err)
}
req := NewSearchRequest(que)
req.Size = 100
req.Fields = []string{"hostname", "metadata.region"}
searchResults, err := idx.Search(req)
if err != nil {
t.Fatal(err)
}
if matches != len(searchResults.Hits) {
t.Fatalf("Unexpected result set, %v != %v", matches, len(searchResults.Hits))
}
}
func TestNestedBooleanMustNotSearcherUpsidedown(t *testing.T) {
tmpIndexPath := createTmpIndexPath(t)
defer cleanupTmpIndexPath(t, tmpIndexPath)
// create an index with default settings
idxMapping := NewIndexMapping()
idx, err := New(tmpIndexPath, idxMapping)
if err != nil {
t.Fatal(err)
}
defer func() {
err = idx.Close()
if err != nil {
t.Fatal(err)
}
}()
// create and insert documents as a batch
batch := idx.NewBatch()
docs := []struct {
id string
hasRole bool
investigationId string
}{
{
id: "1@1",
hasRole: true,
investigationId: "1",
},
{
id: "1@2",
hasRole: false,
investigationId: "2",
},
{
id: "2@1",
hasRole: true,
investigationId: "1",
},
{
id: "2@2",
hasRole: false,
investigationId: "2",
},
{
id: "3@1",
hasRole: true,
investigationId: "1",
},
{
id: "3@2",
hasRole: false,
investigationId: "2",
},
{
id: "4@1",
hasRole: true,
investigationId: "1",
},
{
id: "5@1",
hasRole: true,
investigationId: "1",
},
{
id: "6@1",
hasRole: true,
investigationId: "1",
},
{
id: "7@1",
hasRole: true,
investigationId: "1",
},
}
for i := 0; i < len(docs); i++ {
doc := document.NewDocument(docs[i].id)
doc.Fields = []document.Field{
document.NewTextField("id", []uint64{}, []byte(docs[i].id)),
document.NewBooleanField("hasRole", []uint64{}, docs[i].hasRole),
document.NewTextField("investigationId", []uint64{}, []byte(docs[i].investigationId)),
}
doc.CompositeFields = []*document.CompositeField{
document.NewCompositeFieldWithIndexingOptions(
"_all", true, []string{"text"}, []string{},
index.IndexField|index.IncludeTermVectors),
}
if err = batch.IndexAdvanced(doc); err != nil {
t.Fatal(err)
}
}
if err = idx.Batch(batch); err != nil {
t.Fatal(err)
}
tq := NewTermQuery("1")
tq.SetField("investigationId")
// using must not, for cases that the field did not exists at all
hasRole := NewBoolFieldQuery(true)
hasRole.SetField("hasRole")
noRole := NewBooleanQuery()
noRole.AddMustNot(hasRole)
oneRolesOrNoRoles := NewBooleanQuery()
oneRolesOrNoRoles.AddShould(noRole)
oneRolesOrNoRoles.SetMinShould(1)
q := NewConjunctionQuery(tq, oneRolesOrNoRoles)
sr := NewSearchRequestOptions(q, 100, 0, false)
sr.Fields = []string{"hasRole"}
sr.Highlight = NewHighlight()
res, err := idx.Search(sr)
if err != nil {
t.Fatal(err)
}
if res.Total != 0 {
t.Fatalf("Unexpected result, %v != 0", res.Total)
}
}
func TestSearchScorchOverEmptyKeyword(t *testing.T) {
defaultIndexType := Config.DefaultIndexType
Config.DefaultIndexType = scorch.Name
dmap := mapping.NewDocumentMapping()
dmap.DefaultAnalyzer = standard.Name
fm := mapping.NewTextFieldMapping()
fm.Analyzer = keyword.Name
fm1 := mapping.NewTextFieldMapping()
fm1.Analyzer = standard.Name
dmap.AddFieldMappingsAt("id", fm)
dmap.AddFieldMappingsAt("name", fm1)
imap := mapping.NewIndexMapping()
imap.DefaultMapping = dmap
imap.DefaultAnalyzer = standard.Name
tmpIndexPath := createTmpIndexPath(t)
defer cleanupTmpIndexPath(t, tmpIndexPath)
idx, err := New(tmpIndexPath, imap)
if err != nil {
t.Fatal(err)
}
defer func() {
err = idx.Close()
if err != nil {
t.Fatal(err)
}
Config.DefaultIndexType = defaultIndexType
}()
for i := 0; i < 10; i++ {
err = idx.Index(fmt.Sprint(i), map[string]string{"name": fmt.Sprintf("test%d", i), "id": ""})
if err != nil {
t.Fatal(err)
}
}
count, err := idx.DocCount()
if err != nil {
t.Fatal(err)
}
if count != 10 {
t.Fatalf("Unexpected doc count: %v, expected 10", count)
}
q := query.NewWildcardQuery("test*")
sr := NewSearchRequestOptions(q, 40, 0, false)
res, err := idx.Search(sr)
if err != nil {
t.Fatal(err)
}
if res.Total != 10 {
t.Fatalf("Unexpected search hits: %v, expected 10", res.Total)
}
}
func TestMultipleNestedBooleanMustNotSearchersOnScorch(t *testing.T) {
defaultIndexType := Config.DefaultIndexType
Config.DefaultIndexType = scorch.Name
tmpIndexPath := createTmpIndexPath(t)
defer cleanupTmpIndexPath(t, tmpIndexPath)
// create an index with default settings
idxMapping := NewIndexMapping()
idx, err := New(tmpIndexPath, idxMapping)
if err != nil {
t.Fatal(err)
}
defer func() {
err = idx.Close()
if err != nil {
t.Fatal(err)
}
Config.DefaultIndexType = defaultIndexType
}()
// create and insert documents as a batch
batch := idx.NewBatch()
doc := document.NewDocument("1-child-0")
doc.Fields = []document.Field{
document.NewTextField("id", []uint64{}, []byte("1-child-0")),
document.NewBooleanField("hasRole", []uint64{}, false),
document.NewTextField("roles", []uint64{}, []byte("R1")),
document.NewNumericField("type", []uint64{}, 0),
}
doc.CompositeFields = []*document.CompositeField{
document.NewCompositeFieldWithIndexingOptions(
"_all", true, []string{"text"}, []string{},
index.IndexField|index.IncludeTermVectors),
}
if err = batch.IndexAdvanced(doc); err != nil {
t.Fatal(err)
}
docs := []struct {
id string
hasRole bool
typ int
}{
{
id: "16d6fa37-48fd-4dea-8b3d-a52bddf73951",
hasRole: false,
typ: 9,
},
{
id: "18fa9eb2-8b1f-46f0-8b56-b4c551213f78",
hasRole: false,
typ: 9,
},
{
id: "3085855b-d74b-474a-86c3-9bf3e4504382",
hasRole: false,
typ: 9,
},
{
id: "38ef5d28-0f85-4fb0-8a94-dd20751c3364",
hasRole: false,
typ: 9,
},
}
for i := 0; i < len(docs); i++ {
doc := document.NewDocument(docs[i].id)
doc.Fields = []document.Field{
document.NewTextField("id", []uint64{}, []byte(docs[i].id)),
document.NewBooleanField("hasRole", []uint64{}, docs[i].hasRole),
document.NewNumericField("type", []uint64{}, float64(docs[i].typ)),
}
doc.CompositeFields = []*document.CompositeField{
document.NewCompositeFieldWithIndexingOptions(
"_all", true, []string{"text"}, []string{},
index.IndexField|index.IncludeTermVectors),
}
if err = batch.IndexAdvanced(doc); err != nil {
t.Fatal(err)
}
}
if err = idx.Batch(batch); err != nil {
t.Fatal(err)
}
batch = idx.NewBatch()
// Update 1st doc
doc = document.NewDocument("1-child-0")
doc.Fields = []document.Field{
document.NewTextField("id", []uint64{}, []byte("1-child-0")),
document.NewBooleanField("hasRole", []uint64{}, false),
document.NewNumericField("type", []uint64{}, 0),
}
doc.CompositeFields = []*document.CompositeField{
document.NewCompositeFieldWithIndexingOptions(
"_all", true, []string{"text"}, []string{},
index.IndexField|index.IncludeTermVectors),
}
if err = batch.IndexAdvanced(doc); err != nil {
t.Fatal(err)
}
if err = idx.Batch(batch); err != nil {
t.Fatal(err)
}
inclusive := true
val := float64(9)
q := query.NewNumericRangeInclusiveQuery(&val, &val, &inclusive, &inclusive)
q.SetField("type")
initialQuery := query.NewBooleanQuery(nil, nil, []query.Query{q})
// using must not, for cases that the field did not exists at all
hasRole := NewBoolFieldQuery(true)
hasRole.SetField("hasRole")
noRole := NewBooleanQuery()
noRole.AddMustNot(hasRole)
rq := query.NewBooleanQuery([]query.Query{initialQuery, noRole}, nil, nil)
sr := NewSearchRequestOptions(rq, 100, 0, false)
sr.Fields = []string{"id", "hasRole", "type"}
sr.Highlight = NewHighlight()
res, err := idx.Search(sr)
if err != nil {
t.Fatal(err)
}
if res.Total != 1 {
t.Fatalf("Unexpected result, %v != 1", res.Total)
}
}
func testBooleanMustNotSearcher(t *testing.T, indexName string) {
tmpIndexPath := createTmpIndexPath(t)
defer cleanupTmpIndexPath(t, tmpIndexPath)
im := NewIndexMapping()
idx, err := NewUsing(tmpIndexPath, im, indexName, Config.DefaultKVStore, nil)
if err != nil {
t.Fatal(err)
}
defer func() {
err = idx.Close()
if err != nil {
t.Fatal(err)
}
}()
docs := []struct {
Name string
HasRole bool
}{
{
Name: "13900",
},
{
Name: "13901",
},
{
Name: "13965",
},
{
Name: "13966",
HasRole: true,
},
{
Name: "13967",
HasRole: true,
},
}
for _, doc := range docs {
err := idx.Index(doc.Name, doc)
if err != nil {
t.Fatal(err)
}
}
lhs := NewDocIDQuery([]string{"13965", "13966", "13967"})
hasRole := NewBoolFieldQuery(true)
hasRole.SetField("HasRole")
rhs := NewBooleanQuery()
rhs.AddMustNot(hasRole)
var compareLeftRightAndConjunction = func(idx Index, left, right query.Query) error {
// left
lr := NewSearchRequestOptions(left, 100, 0, false)
lres, err := idx.Search(lr)
if err != nil {
return fmt.Errorf("error left: %v", err)
}
lresIds := map[string]struct{}{}
for i := range lres.Hits {
lresIds[lres.Hits[i].ID] = struct{}{}
}
// right
rr := NewSearchRequestOptions(right, 100, 0, false)
rres, err := idx.Search(rr)
if err != nil {
return fmt.Errorf("error right: %v", err)
}
rresIds := map[string]struct{}{}
for i := range rres.Hits {
rresIds[rres.Hits[i].ID] = struct{}{}
}
// conjunction
cr := NewSearchRequestOptions(NewConjunctionQuery(left, right), 100, 0, false)
cres, err := idx.Search(cr)
if err != nil {
return fmt.Errorf("error conjunction: %v", err)
}
for i := range cres.Hits {
if _, ok := lresIds[cres.Hits[i].ID]; ok {
if _, ok := rresIds[cres.Hits[i].ID]; !ok {
return fmt.Errorf("error id %s missing from right", cres.Hits[i].ID)
}
} else {
return fmt.Errorf("error id %s missing from left", cres.Hits[i].ID)
}
}
return nil
}
err = compareLeftRightAndConjunction(idx, lhs, rhs)
if err != nil {
t.Fatal(err)
}
}
func TestBooleanMustNotSearcherUpsidedown(t *testing.T) {
testBooleanMustNotSearcher(t, upsidedown.Name)
}
func TestBooleanMustNotSearcherScorch(t *testing.T) {
testBooleanMustNotSearcher(t, scorch.Name)
}
func TestQueryStringEmptyConjunctionSearcher(t *testing.T) {
mapping := NewIndexMapping()