71 lines
1.3 KiB
Go
71 lines
1.3 KiB
Go
package geom
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import (
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"bytes"
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"goposm/element"
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"goposm/geom/geos"
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"testing"
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)
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func TestLineString(t *testing.T) {
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nodes := make([]element.Node, 2)
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nodes[0] = element.Node{Lat: 0, Long: 0}
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nodes[1] = element.Node{Lat: 0, Long: 10}
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g := geos.NewGEOS()
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defer g.Finish()
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wkt, err := LineStringWKB(g, nodes)
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if err != nil {
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t.Fatal(err)
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}
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if bytes.Compare(wkt[0:2], []byte{0x1, 0x2}) != 0 {
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t.Errorf("%#v", wkt)
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}
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}
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func TestPolygon(t *testing.T) {
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nodes := []element.Node{
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element.Node{Lat: 0, Long: 0},
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element.Node{Lat: 0, Long: 10},
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element.Node{Lat: 10, Long: 10},
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element.Node{Lat: 0, Long: 0},
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}
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g := geos.NewGEOS()
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defer g.Finish()
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wkt, err := PolygonWKB(g, nodes)
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if err != nil {
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t.Fatal(err)
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}
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if bytes.Compare(wkt[0:2], []byte{0x1, 0x3}) != 0 {
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t.Errorf("%#v", wkt)
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}
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}
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func TestPolygonNotClosed(t *testing.T) {
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nodes := []element.Node{
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element.Node{Lat: 0, Long: 0},
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element.Node{Lat: 0, Long: 10},
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element.Node{Lat: 10, Long: 10},
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}
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g := geos.NewGEOS()
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defer g.Finish()
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_, err := PolygonWKB(g, nodes)
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if err == nil {
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t.Fatal("no error")
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}
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}
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func BenchmarkLineString(b *testing.B) {
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size := 16
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nodes := make([]element.Node, size)
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for i := 0; i < size; i++ {
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nodes[i] = element.Node{Lat: 0, Long: float64(i)}
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}
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g := geos.NewGEOS()
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defer g.Finish()
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for i := 0; i < b.N; i++ {
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LineStringWKB(g, nodes)
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}
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}
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