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spatial_test.go
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344 lines (272 loc) · 6.57 KB
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package spatial
import (
"math"
"testing"
"time"
"github.com/dhconnelly/rtreego"
)
const (
itUserObject IndexableType = 1
itUserObject2 IndexableType = 2
testObjectID = "obj1"
)
var (
testBounds = MapBounds{
SouthWestLng: -10,
SouthWestLat: -10,
NorthEastLng: 10,
NorthEastLat: 10,
}
)
type (
object struct {
id string
rect *rtreego.Rect
objType IndexableType
}
)
func (o *object) ID() string {
return o.id
}
func (o *object) Type() IndexableType {
return o.objType
}
func (o *object) Bounds() *rtreego.Rect {
return o.rect
}
func (o *object) Ref() interface{} {
return nil
}
func newObject(oType IndexableType, id string, lat float64, lng float64) *object {
p := rtreego.Point{lng, lat}
rect, _ := rtreego.NewRect(p, []float64{0.1, 0.1})
return &object{id, rect, oType}
}
func newRectObject(oType IndexableType, id string, rect *rtreego.Rect) *object {
return &object{id, rect, oType}
}
func timeout(n time.Duration) <-chan time.Time {
t := time.NewTimer(n * time.Millisecond)
return t.C
}
func getUpdates(ch <-chan []Indexable) []Indexable {
for {
select {
case <-timeout(50):
return nil
case u := <-ch:
return u
}
}
}
func eq(a, b float64) bool {
tolerance := 0.0001
diff := math.Abs(a - b)
return diff < tolerance
}
func checkCoords(rect *rtreego.Rect, x float64, y float64) bool {
return eq(rect.PointCoord(0), x) && eq(rect.PointCoord(1), y)
}
func TestBoundsUpdate(t *testing.T) {
var updates []Indexable
var ok bool
srv := New(25, 50)
lst := srv.NewListener(100, 10*time.Millisecond)
defer lst.Stop()
lst.SetBounds(testBounds)
ch := lst.Updates()
// make sure there are no updates yet
updates = getUpdates(ch)
if updates != nil {
t.Errorf("unexpected update: %s", updates)
return
}
obj := newObject(itUserObject, testObjectID, 0, 0)
srv.Add(obj)
updates = getUpdates(ch)
if updates == nil {
t.Errorf("one update expected, got nil")
return
}
if len(updates) != 1 {
t.Errorf("one update expected, got %d", len(updates))
return
}
if obj, ok = updates[0].(*object); !ok {
t.Errorf("error asserting update type as object")
return
}
if !checkCoords(obj.rect, 0, 0) {
t.Errorf("expected coords %.3f/%.3f, got %.3f/%.3f",
0.0, 0.0,
obj.rect.PointCoord(0), obj.rect.PointCoord(1),
)
return
}
obj = newObject(itUserObject, testObjectID, 3, 3)
srv.Add(obj)
updates = getUpdates(ch)
if updates == nil {
t.Errorf("one update expected, got nil")
return
}
if len(updates) != 1 {
t.Errorf("one update expected, got %d", len(updates))
return
}
if obj, ok = updates[0].(*object); !ok {
t.Errorf("error asserting update type as object")
return
}
if !checkCoords(obj.rect, 3, 3) {
t.Errorf("expected coords %.3f/%.3f, got %.3f/%.3f",
3.0, 3.0,
obj.rect.PointCoord(0), obj.rect.PointCoord(1),
)
return
}
// move outside
obj = newObject(itUserObject, testObjectID, 12, 12)
srv.Add(obj)
updates = getUpdates(ch)
if updates == nil {
t.Errorf("zero updates expected, got nil")
return
}
if len(updates) != 0 {
t.Errorf("zero updates expected, got %d", len(updates))
return
}
}
func TestWatchID(t *testing.T) {
var updates []Indexable
var ok bool
srv := New(25, 50)
lst := srv.NewListener(100, 10*time.Millisecond)
defer lst.Stop()
lst.SetBounds(testBounds)
lst.SubscribeID(testObjectID)
ch := lst.Updates()
// make sure there are no updates yet
updates = getUpdates(ch)
if updates != nil {
t.Errorf("unexpected update: %s", updates)
return
}
obj := newObject(itUserObject, testObjectID, 0, 0)
srv.Add(obj)
updates = getUpdates(ch)
if updates == nil {
t.Errorf("one update expected, got nil")
return
}
if len(updates) != 1 {
t.Errorf("one update expected, got %d", len(updates))
return
}
if obj, ok = updates[0].(*object); !ok {
t.Errorf("error asserting update type as object")
return
}
if !checkCoords(obj.rect, 0, 0) {
t.Errorf("expected coords %.3f/%.3f, got %.3f/%.3f",
0.0, 0.0,
obj.rect.PointCoord(0), obj.rect.PointCoord(1),
)
return
}
obj = newObject(itUserObject, testObjectID, 3, 3)
srv.Add(obj)
updates = getUpdates(ch)
if updates == nil {
t.Errorf("one update expected, got nil")
return
}
if len(updates) != 1 {
t.Errorf("one update expected, got %d", len(updates))
return
}
if obj, ok = updates[0].(*object); !ok {
t.Errorf("error asserting update type as object")
return
}
if !checkCoords(obj.rect, 3, 3) {
t.Errorf("expected coords %.3f/%.3f, got %.3f/%.3f",
3.0, 3.0,
obj.rect.PointCoord(0), obj.rect.PointCoord(1),
)
return
}
// move outside
obj = newObject(itUserObject, testObjectID, 12, 12)
srv.Add(obj)
updates = getUpdates(ch)
if updates == nil {
t.Errorf("one update expected, got nil")
return
}
if len(updates) != 1 {
t.Errorf("one update expected, got %d", len(updates))
return
}
if obj, ok = updates[0].(*object); !ok {
t.Errorf("error asserting update type as object")
return
}
if !checkCoords(obj.rect, 12, 12) {
t.Errorf("expected coords %.3f/%.3f, got %.3f/%.3f",
12.0, 12.0,
obj.rect.PointCoord(0), obj.rect.PointCoord(1),
)
return
}
}
func TestFilters(t *testing.T) {
srv := New(25, 50)
lst := srv.NewListener(100, time.Second)
defer lst.Stop()
obj := newObject(itUserObject, testObjectID, 0, 0)
srv.Add(obj)
obj2 := newObject(itUserObject2, "obj2", 0.1, 0.1)
srv.Add(obj2)
p := rtreego.Point{-1.0, -1.0}
rect, _ := rtreego.NewRect(p, []float64{2.0, 2.0})
boxObj := newRectObject(itBoundingBox, "box1", rect)
srv.Add(boxObj)
p = rtreego.Point{-30.0, -30.0}
rect, _ = rtreego.NewRect(p, []float64{60.0, 60.0})
bounds := newBoundingBox(rect, lst)
srv.Add(bounds)
results := srv.findObjectsByBoundingBoxes([]*boundingBox{bounds})
if len(results) != 2 {
t.Errorf("expected exactly 2 objects, but %d were found", len(results))
return
}
for id := range results {
if id != obj.id && id != obj2.id {
t.Errorf("unexpected object with id \"%s\" found", id)
}
}
results = srv.findObjectsByBoundingBoxes(
[]*boundingBox{bounds},
FilterByTypes([]IndexableType{itUserObject}),
)
if len(results) != 1 {
t.Errorf("expected exactly 1 object, but %d were found", len(results))
return
}
if _, found := results[obj.id]; !found {
t.Errorf("object %s is expected to be in results", obj.id)
}
results = srv.findObjectsByBoundingBoxes(
[]*boundingBox{bounds},
FilterByTypes([]IndexableType{itUserObject2}),
)
if len(results) != 1 {
t.Errorf("expected exactly 1 object, but %d were found", len(results))
return
}
if _, found := results[obj2.id]; !found {
t.Errorf("object %s is expected to be in results", obj.id)
}
}