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line_string_test.go
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package wkb
import (
"testing"
"github.com/planetfederal/orb"
)
var (
testLineString = orb.LineString{{1, 2}, {3, 4}}
testLineStringData = []byte{
1, 2, 0, 0, 0,
2, 0, 0, 0,
0, 0, 0, 0, 0, 0, 240, 63, 0, 0, 0, 0, 0, 0, 0, 64,
0, 0, 0, 0, 0, 0, 8, 64, 0, 0, 0, 0, 0, 0, 16, 64}
)
func TestLineString(t *testing.T) {
large := orb.LineString{}
for i := 0; i < maxPointsAlloc+100; i++ {
large = append(large, orb.Point{float64(i), float64(-i)})
}
cases := []struct {
name string
data []byte
expected orb.LineString
}{
{
name: "line string",
data: testLineStringData,
expected: testLineString,
},
{
name: "large line string",
data: MustMarshal(large),
expected: large,
},
}
for _, tc := range cases {
t.Run(tc.name, func(t *testing.T) {
compare(t, tc.expected, tc.data)
})
}
}
var (
testMultiLineString = orb.MultiLineString{
{{10, 10}, {20, 20}, {10, 40}},
{{40, 40}, {30, 30}, {40, 20}, {30, 10}},
}
testMultiLineStringData = []byte{
0x01, 0x05, 0x00, 0x00, 0x00,
0x02, 0x00, 0x00, 0x00, // Number of Lines 2
0x01, // Encoding Little
0x02, 0x00, 0x00, 0x00, // Type
0x03, 0x00, 0x00, 0x00, // Number of points 3
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x24, 0x40, // X1 10
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x24, 0x40, // Y1 10
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x34, 0x40, // X2 20
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x34, 0x40, // Y2 20
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x24, 0x40, // X3 10
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x44, 0x40, // Y3 40
0x01, // Encoding Little
0x02, 0x00, 0x00, 0x00, // Type LineString
0x04, 0x00, 0x00, 0x00, // Number of Points 4
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x44, 0x40, // X1 40
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x44, 0x40, // Y1 40
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3e, 0x40, // X2 30
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3e, 0x40, // Y2 40
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x44, 0x40, // X3 40
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x34, 0x40, // Y3 20
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3e, 0x40, // X4 30
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x24, 0x40, // Y4 10
}
testMultiLineStringSingle = orb.MultiLineString{
{{10, 10}, {20, 20}, {10, 40}},
}
testMultiLineStringSingleData = []byte{
0x01, 0x05, 0x00, 0x00, 0x00,
0x01, 0x00, 0x00, 0x00, // Number of Lines 2
0x01, // Encoding Little
0x02, 0x00, 0x00, 0x00, // Type
0x03, 0x00, 0x00, 0x00, // Number of points 3
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x24, 0x40, // X1 10
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x24, 0x40, // Y1 10
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x34, 0x40, // X2 20
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x34, 0x40, // Y2 20
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x24, 0x40, // X3 10
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x44, 0x40, // Y3 40
}
)
func TestMultiLineString(t *testing.T) {
large := orb.MultiLineString{}
for i := 0; i < maxMultiAlloc+100; i++ {
large = append(large, orb.LineString{})
}
cases := []struct {
name string
data []byte
expected orb.MultiLineString
}{
{
name: "multi line string",
data: testMultiLineStringData,
expected: testMultiLineString,
},
{
name: "single multi line string",
data: testMultiLineStringSingleData,
expected: testMultiLineStringSingle,
},
{
name: "large",
data: MustMarshal(large),
expected: large,
},
}
for _, tc := range cases {
t.Run(tc.name, func(t *testing.T) {
compare(t, tc.expected, tc.data)
})
}
}