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package orb
import (
"fmt"
"testing"
)
func TestRound(t *testing.T) {
for _, g := range AllGeometries {
// this closure is necessary if tests are run in parallel, maybe
func(geom Geometry) {
t.Run(fmt.Sprintf("%T", g), func(t *testing.T) {
// should not panic
Round(geom)
})
}(g)
}
cases := []struct {
name string
input Point
factor int
result Point
}{
{
name: "round out",
input: Point{0.007, -0.007},
factor: 1e2,
result: Point{0.01, -0.01},
},
{
name: "round in",
input: Point{0.12345, -0.12345},
factor: 1e3,
result: Point{0.123, -0.123},
},
{
name: "round out on tie",
input: Point{0.15, -0.15},
factor: 1e1,
result: Point{0.2, -0.2},
},
}
for _, tc := range cases {
t.Run(tc.name+" - point", func(t *testing.T) {
r := Round(tc.input, tc.factor).(Point)
if !r.Equal(tc.result) {
t.Errorf("point round incorrect: %v != %v", r, tc.result)
}
})
t.Run(tc.name+" - list", func(t *testing.T) {
r := Round(LineString{tc.input}, tc.factor).(LineString)
if !r[0].Equal(tc.result) {
t.Errorf("list round incorrect: %v != %v", r[0], tc.result)
}
})
t.Run(tc.name+" - bound", func(t *testing.T) {
r := Round(Bound{Min: tc.input, Max: tc.input}, tc.factor).(Bound)
if !r.Min.Equal(tc.result) {
t.Errorf("bound min incorrect: %v != %v", r.Min, tc.result)
}
if !r.Max.Equal(tc.result) {
t.Errorf("bound max incorrect: %v != %v", r.Max, tc.result)
}
})
}
t.Run("default to 6 decimal places", func(t *testing.T) {
r := Round(Point{0.123456789, -0.123456789}).(Point)
if !r.Equal(Point{0.123457, -0.123457}) {
t.Errorf("incorrect default round: %v", r)
}
})
}
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