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geometry_test.go
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geometry_test.go
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package geojson
import (
"encoding/json"
"fmt"
"strings"
"testing"
)
func TestCoord(t *testing.T) {
tt := test{t}
tt.AssertEq(1.0, float64(Coord(1)), "Coord 1 test")
tt.AssertEq(1.0, float64(Coord(1.0)), "Coord 1 test")
func() {
defer func() {
err := recover()
tt.AssertNeq(err, nil, "Panic expected")
}()
Coord("asd")
}()
}
func TestPoint(t *testing.T) {
var (
p *Point
err error
)
tt := test{t}
res := `{"type":"Point","coordinates":[1.1,2.2]}`
p = NewPoint(Coordinate{1.1, 2.2})
tt.AssertMarshal(p, res, "Point 1")
p = NewPoint(Coordinate{})
err = p.AddGeometry(nil)
tt.AssertNeq(err, nil, "Should raise assertion error")
}
func TestUnmarshalPoint(t *testing.T) {
var (
err error
p Point
)
res := `{"type":"Point","coordinates":[1.1,2.2]}`
tt := test{t}
err = json.Unmarshal([]byte(res), &p)
tt.AssertEq(err, nil, "No error expected 1")
tt.AssertEq("Point", p.Type)
tt.AssertEq(Coord(1.1), p.Coordinates[0])
tt.AssertEq(Coord(2.2), p.Coordinates[1])
}
func TestLineString(t *testing.T) {
tt := test{t}
res := `{"type":"LineString","coordinates":[]}`
mp := NewLineString(nil)
tt.AssertMarshal(mp, res)
}
func TestUnmarshalLineString(t *testing.T) {
var (
err error
ls LineString
)
res := `{"type":"LineString","coordinates":[[1,2], [3.0, 4.1]]}`
tt := test{t}
err = json.Unmarshal([]byte(res), &ls)
tt.AssertEq(err, nil, "No error expected 1")
tt.AssertEq("LineString", ls.Type)
tt.AssertEq(len(ls.Coordinates), 2, "Wrong size of coordinates")
tt.AssertCoordinates(Coordinate{1, 2}, ls.Coordinates[0])
tt.AssertCoordinates(Coordinate{3, 4.1}, ls.Coordinates[1])
}
func TestMultiPoint(t *testing.T) {
tt := test{t}
res := `{"type":"MultiPoint","coordinates":[]}`
mp := NewMultiPoint(nil)
tt.AssertMarshal(mp, res)
}
func TestMultiLineString(t *testing.T) {
tt := test{t}
res := `{"type":"MultiLineString","coordinates":[]}`
mp := NewMultiLineString(nil)
tt.AssertMarshal(mp, res)
}
func TestPolygon(t *testing.T) {
tt := test{t}
res := `{"type":"Polygon","coordinates":[]}`
mp := NewPolygon(nil)
tt.AssertMarshal(mp, res)
}
func TestPolygonWithHoles(t *testing.T) {
ps1 := `[[100.01,0],[101,0],[101,1],[100,1],[100,0]]`
ps2 := `[[100.2,0.2],[100.8,0.2],[100.8,0.8],[100.2,0.8],[100.2,0.2]]`
ps := `{"type":"Polygon","coordinates":[%s,%s]}`
res := fmt.Sprintf(ps, ps1, ps2)
l1 := Coordinates{Coordinate{100.01, 0.0}, Coordinate{101, 0}, Coordinate{101.0, 1.0},
Coordinate{100.0, 1.0}, Coordinate{100.0, 0.0}}
l2 := Coordinates{Coordinate{100.2, 0.2}, Coordinate{100.8, 0.2}, Coordinate{100.8, 0.8},
Coordinate{100.2, 0.8}, Coordinate{100.2, 0.2}}
ml := MultiLine{l1, l2}
mp := NewPolygon(ml)
tt := test{t}
tt.AssertMarshal(mp, res)
}
func MultiCoordinatesInterfaceTest(factory func(Coordinates) TestInterfaceMultiCoord,
res string, t test) {
var (
mc TestInterfaceMultiCoord
err error
)
mc = factory(nil)
mc.AddCoordinates(Coordinate{1.1, 2.2})
mc.AddCoordinates(Coordinate{3.3, 4.4})
t.AssertMarshal(mc, res, "1")
p := Coordinates{{1.1, 2.2}, {3.3, 4.4}}
mc = factory(p)
t.AssertMarshal(mc, res, "2")
mc = factory(nil)
mc.AddCoordinates(p...)
t.AssertMarshal(mc, res, "3")
mc = factory(nil)
mc.AddCoordinates(Coordinate{1.1, 2.2}, Coordinate{3.3, 4.4})
t.AssertMarshal(mc, res, "4")
mc = factory(nil)
mc.AddGeometry(Coordinate{1.1, 2.2})
mc.AddGeometry(Coordinate{3.3, 4.4})
t.AssertMarshal(mc, res, "5")
mc = factory(nil)
mc.AddGeometry(Coordinates{{1.1, 2.2}, {3.3, 4.4}})
t.AssertMarshal(mc, res, "6")
mc = factory(nil)
mc.AddGeometry(nil)
err = mc.AddGeometry(nil)
t.AssertNeq(err, nil, "Should raise assertion error")
}
func MultiLineCoordinatesInterfaceTest(factory func([]Coordinates) TestInterfaceMultiLineCoords,
res string, t test) {
var (
mc TestInterfaceMultiLineCoords
err error
)
c1 := Coordinate{1.1, 2.2}
c2 := Coordinate{3.3, 4.4}
c := Coordinates{c1, c2}
cc := MultiLine{c, c}
mc = factory(nil)
mc.AddCoordinates(c)
mc.AddCoordinates(c)
t.AssertMarshal(mc, res, "1")
mc = factory(nil)
mc.AddCoordinates(cc...)
t.AssertMarshal(mc, res, "2")
mc = factory(nil)
mc.AddGeometry(c)
mc.AddGeometry(c)
t.AssertMarshal(mc, res, "3")
mc = factory(nil)
mc.AddGeometry(cc)
t.AssertMarshal(mc, res, "4")
mc = factory(nil)
mc.AddGeometry(nil)
err = mc.AddGeometry(nil)
t.AssertNeq(err, nil, "Should raise assertion error")
}
func TestMultiPointInterface(t *testing.T) {
tt := test{t}
res := `{"type":"MultiPoint","coordinates":[[1.1,2.2],[3.3,4.4]]}`
MultiCoordinatesInterfaceTest(NewMultiPointTest, res, tt)
}
func TestLineStringInterface(t *testing.T) {
res := `{"type":"LineString","coordinates":[[1.1,2.2],[3.3,4.4]]}`
tt := test{t}
MultiCoordinatesInterfaceTest(NewLineStringTest, res, tt)
}
func TestMultiLineStringInterface(t *testing.T) {
res := (`{"type":"MultiLineString","coordinates":[[[1.1,2.2],[3.3,4.4]],[[1.1,2.2],[3.3,4.4]]]}`)
tt := test{t}
MultiLineCoordinatesInterfaceTest(NewMultiLineStringTest, res, tt)
}
func TestPolygonInterface(t *testing.T) {
res := `{"type":"Polygon","coordinates":[[[1.1,2.2],[3.3,4.4]],[[1.1,2.2],[3.3,4.4]]]}`
tt := test{t}
MultiLineCoordinatesInterfaceTest(NewPolygonTest, res, tt)
}
func TestMultiPolygon(t *testing.T) {
var (
m *MultiPolygon
err error
res string
)
tt := test{t}
res = `{"type":"MultiPolygon","coordinates":[]}`
m = NewMultiPolygon(nil)
tt.AssertMarshal(m, res)
m = NewMultiPolygon(nil)
err = m.AddGeometry(nil)
tt.AssertNeq(err, nil, "Should raise assertion error")
}
func TestGeometryCollection(t *testing.T) {
var (
m *GeometryCollection
err error
res string
)
tt := test{t}
ress := []string{`{"type":"GeometryCollection",`,
`"geometries":[`,
`{"type":"Point",`,
`"coordinates":[100,0]`,
`},`,
`{"type":"LineString",`,
`"coordinates":[[101,0.1],[102.2,1]]`,
`}]}`}
res = strings.Join(ress, "")
p := NewPoint(Coordinate{100, 0})
ls := NewLineString(Coordinates{{101, 0.1}, {102.2, 1}})
m = NewGeometryCollection([]interface{}{p, ls})
tt.AssertMarshal(m, res, "1")
m = NewGeometryCollection(nil)
m.AddGeometry(p)
m.AddGeometry(ls)
tt.AssertMarshal(m, res, "2")
m = NewGeometryCollection(nil)
err = m.AddGeometry(nil)
tt.AssertNeq(err, nil, "Should raise assertion error")
}