154 lines
3.4 KiB
Go
154 lines
3.4 KiB
Go
package geojson
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import (
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"bytes"
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"testing"
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)
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func TestParsePolygon(t *testing.T) {
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r := bytes.NewBufferString(`{"type": "Polygon", "coordinates": [[[8, 50], [11, 50], [11, 53], [8, 53], [8, 50]]]}`)
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features, err := ParseGeoJSON(r)
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if err != nil {
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t.Fatal(err)
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}
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if len(features) != 1 {
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t.Fatal(features)
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}
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if len(features[0].Polygon[0]) != 5 {
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t.Fatal(features)
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}
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// ignore z values
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r = bytes.NewBufferString(`{"type": "Polygon", "coordinates": [[[8, 50, 0], [11, 50, 0], [11, 53, 0], [8, 53, 0], [8, 50, 0]]]}`)
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features, err = ParseGeoJSON(r)
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if err != nil {
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t.Fatal(err)
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}
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if len(features) != 1 {
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t.Fatal(features)
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}
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if len(features[0].Polygon[0]) != 5 {
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t.Fatal(features)
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}
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if p := features[0].Polygon[0][0]; p.Long != 8.0 || p.Lat != 50 {
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t.Fatal(features)
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}
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// with hole
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r = bytes.NewBufferString(`{"type": "Polygon", "coordinates": [[[8, 50], [11, 50], [11, 53], [8, 53], [8, 50]], [[9, 51], [10, 51], [10, 52], [9, 52], [9, 51]]]}`)
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features, err = ParseGeoJSON(r)
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if err != nil {
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t.Fatal(err)
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}
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if len(features) != 1 {
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t.Fatal(features)
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}
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if len(features[0].Polygon) != 2 {
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t.Fatal(features)
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}
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}
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func TestParseMultiPolygon(t *testing.T) {
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r := bytes.NewBufferString(`{"type": "MultiPolygon", "coordinates":
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[[[[8, 50], [11, 50], [11, 53], [8, 50]]],
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[[[8, 50], [11, 50], [11, 53], [8, 50]]]]
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}`)
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features, err := ParseGeoJSON(r)
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if err != nil {
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t.Fatal(err)
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}
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if len(features) != 2 {
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t.Fatal(features)
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}
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}
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func TestParseFeature(t *testing.T) {
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r := bytes.NewBufferString(`{"type": "Feature", "geometry": {
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"type": "Polygon", "coordinates": [[[8, 50], [11, 50], [11, 53], [8, 53], [8, 50]]]
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}}`)
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features, err := ParseGeoJSON(r)
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if err != nil {
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t.Fatal(err)
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}
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if len(features) != 1 {
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t.Fatal(features)
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}
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if len(features[0].Polygon[0]) != 5 {
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t.Fatal(features)
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}
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}
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func TestParseFeatureCollection(t *testing.T) {
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r := bytes.NewBufferString(`{"type": "FeatureCollection", "features": [
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{"type": "Feature", "geometry":
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{"type": "Polygon", "coordinates": [[[8, 50], [11, 50], [11, 53], [8, 53], [8, 50]]]}
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},
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{"type": "Feature", "geometry":
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{"type": "Polygon", "coordinates": [[[8, 50], [11, 50], [11, 53], [8, 53], [8, 50]]]}
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}
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]}`)
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features, err := ParseGeoJSON(r)
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if err != nil {
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t.Fatal(err)
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}
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if len(features) != 2 {
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t.Fatal(features)
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}
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if len(features[0].Polygon[0]) != 5 {
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t.Fatal(features)
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}
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if len(features[1].Polygon[0]) != 5 {
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t.Fatal(features)
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}
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}
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func TestParseProperties(t *testing.T) {
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r := bytes.NewBufferString(`{"type": "FeatureCollection", "features": [
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{"type": "Feature", "properties": {"foo": "bar", "baz": 42}, "geometry":
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{"type": "Polygon", "coordinates": [[[8, 50], [11, 50], [11, 53], [8, 53], [8, 50]]]}
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},
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{"type": "Feature", "geometry":
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{"type": "Polygon", "coordinates": [[[8, 50], [11, 50], [11, 53], [8, 53], [8, 50]]]}
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}
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]}`)
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features, err := ParseGeoJSON(r)
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if err != nil {
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t.Fatal(err)
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}
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if len(features) != 2 {
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t.Fatal(features)
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}
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if v, ok := features[0].Properties["foo"]; !ok || v != "bar" {
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t.Errorf("foo != bar, but '%v'", v)
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}
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if v, ok := features[0].Properties["baz"]; !ok || v != "42" {
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t.Errorf("baz != 42, but '%v'", v)
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}
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if len(features[0].Polygon[0]) != 5 {
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t.Fatal(features)
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}
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if len(features[1].Polygon[0]) != 5 {
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t.Fatal(features)
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}
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}
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