forked from mirror/grect
102 lines
3.3 KiB
Go
102 lines
3.3 KiB
Go
package grect
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import (
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"fmt"
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"math/rand"
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"testing"
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"time"
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)
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func testGet(t *testing.T, s, expect string) {
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if Get(s).String() != expect {
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t.Fatalf("for '%v': expected '%v', got '%v'", s, expect, Get(s).String())
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}
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}
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func TestRect(t *testing.T) {
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testGet(t, "", "[]")
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testGet(t, "[]", "[]")
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testGet(t, "[],[]", "[]")
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testGet(t, "[],[],[]", "[]")
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testGet(t, "[10]", "[10]")
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testGet(t, "[10],[10]", "[10]")
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testGet(t, "[10 11],[10]", "[10 11]")
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testGet(t, "[10 11],[11 10]", "[10 10],[11 11]")
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testGet(t, ",[10]", "[10]")
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testGet(t, "[10 11]", "[10 11]")
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testGet(t, "[-3 -2 -1 0 1 2 3],[3 2 1 0 -1 -2 -3]", "[-3 -2 -1 0 -1 -2 -3],[3 2 1 0 1 2 3]")
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}
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func TestWKT(t *testing.T) {
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testGet(t, "POINT(1 2)", "[1 2]")
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testGet(t, "LINESTRING(3 4, -1 -3, (-20 15 18 ))", "[-20 -3 18],[3 15 18]")
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testGet(t, "POLYGON (((1 2 0), 3 4 1, -1 -3 123))", "[-1 -3 0],[3 4 123]")
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testGet(t, "MULTIPOINT (1 2, 3 4, -1 0)", "[-1 0],[3 4]")
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testGet(t, " mUltiLineString ( (1 2, 3 4),(3 4, (5 6)), (-1 -2 -3)) ", "[-1 -2 -3],[5 6 -3]")
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testGet(t, ` MULTIPOLYGON (
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((1 2,2 3),(2 3,8 9)),
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((4 5,6 7))
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)`, "[1 2],[8 9]")
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testGet(t, `
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GEOMETRYCOLLECTION (
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POLYGON EMPTY,
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POINT EMPTY,
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POINT(1000 2),
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POINT EMPTY,
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LINESTRING(3 4, -1 -3, (-20 15 18)),
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GEOMETRYCOLLECTION EMPTY,
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GEOMETRYCOLLECTION(POINT(-1000),POLYGON((10 20,-50 1500))),
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)`, "[-1000 -3 18],[1000 1500 18]")
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}
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func TestGeoJSON(t *testing.T) {
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testGet(t, `{"type":"Point","coordinates":[1,2]}`, "[1 2]")
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testGet(t, `{"type":"LineString","coordinates":[[3,4], [-1,-3], [-20,15,18]]}`, "[-20 -3 18],[3 15 18]")
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testGet(t, `{"type":"Polygon", "coordinates": [[[[1,2,0]],[ 3,4,1], [-1,-3,123]]]}`, "[-1 -3 0],[3 4 123]")
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testGet(t, `{"type":"MultiPoint", "coordinates":[[1,2], [3,4], [-1,0]]}`, "[-1 0],[3 4]")
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testGet(t, `{"type":"mUltiLineString","coordinates": [ [[1,2], [3,4]],[[3,4], [5,6]], [-1,-2,-3]]} `, "[-1 -2 -3],[5 6 -3]")
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testGet(t, `{"type":"MULTIPOLYGON","coordinates": [
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[[[1 2],[2 3]],[[2 3],[8 9]]],
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[[[4 5],[6 7]]]
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)`, "[1 2],[8 9]")
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testGet(t, `{"type":"GeometryCollection", "geometries":[
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{"type":"Feature","geometry":{"type":"Point","coordinates":[0 -10, 17]}},
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{"type":"FeatureCollection","features":[
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{"type":"Feature","geometry":{"type":"Point","coordinates":[0 -10]}},
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{"type":"Feature","geometry":{"type":"Point","coordinates":[0 -11]}}
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]},
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{"type":"POLYGON","coordinates":[]},
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{"type":"POINT","coordinates":[]},
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{"type":"POINT","coordinates":[1000,2]},
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{"type":"POINT","coordinates":[]},
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{"type":"LINESTRING","coordinates":[[3,4], [-1,-3], [[-20,15,18]]]},
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{"type":"GeometryCollection","geometries":[]},
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{"type":"GeometryCollection","geometries":[
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{"type":"Point","coordinates":[-1000]},
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{"type":"Polygon","coordinates":[[[10,20],[-50,1500]]]}
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],
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]}`, "[-1000 -11 17],[1000 1500 18]")
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}
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func TestRandom(t *testing.T) {
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buf := make([]byte, 50)
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rand.Seed(time.Now().UnixNano())
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for i := 0; i < 10000000; i++ {
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rand.Read(buf)
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Get(string(buf))
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}
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}
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func ExampleGet() {
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r := Get(`{
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"type": "Polygon",
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"coordinates": [
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[ [100.0, 0.0], [101.0, 0.0], [101.0, 1.0],
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[100.0, 1.0], [100.0, 0.0] ]
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]
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}`)
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fmt.Printf("%v %v\n", r.Min, r.Max)
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// Output:
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// [100 0] [101 1]
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}
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