85 lines
2.3 KiB
Go
85 lines
2.3 KiB
Go
// 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 searcher
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import (
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"reflect"
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"testing"
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"github.com/blevesearch/bleve/index"
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"github.com/blevesearch/bleve/search"
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)
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func TestGeoPointDistanceSearcher(t *testing.T) {
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tests := []struct {
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centerLon float64
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centerLat float64
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dist float64
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field string
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want []string
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}{
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// approx 110567m per degree at equator
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{0.0, 0.0, 0, "loc", nil},
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{0.0, 0.0, 110567, "loc", []string{"a"}},
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{0.0, 0.0, 2 * 110567, "loc", []string{"a", "b"}},
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// stretching our approximation here
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{0.0, 0.0, 15 * 110567, "loc", []string{"a", "b", "c", "d", "e", "f", "g", "h", "i", "j"}},
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}
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i := setupGeo(t)
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indexReader, err := i.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 = indexReader.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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for _, test := range tests {
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got, err := testGeoPointDistanceSearch(indexReader, test.centerLon, test.centerLat, test.dist, test.field)
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if err != nil {
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t.Fatal(err)
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}
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if !reflect.DeepEqual(got, test.want) {
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t.Errorf("expected %v, got %v for %f %f %f %s", test.want, got, test.centerLon, test.centerLat, test.dist, test.field)
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}
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}
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}
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func testGeoPointDistanceSearch(i index.IndexReader, centerLon, centerLat, dist float64, field string) ([]string, error) {
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var rv []string
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gds, err := NewGeoPointDistanceSearcher(i, centerLon, centerLat, dist, field, 1.0, search.SearcherOptions{})
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if err != nil {
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return nil, err
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}
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ctx := &search.SearchContext{
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DocumentMatchPool: search.NewDocumentMatchPool(gds.DocumentMatchPoolSize(), 0),
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}
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docMatch, err := gds.Next(ctx)
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for docMatch != nil && err == nil {
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rv = append(rv, string(docMatch.IndexInternalID))
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docMatch, err = gds.Next(ctx)
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}
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if err != nil {
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return nil, err
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}
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return rv, nil
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}
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