tile38/vendor/github.com/tidwall/geojson/geo/geo_test.go

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// Copyright 2018 Joshua J Baker. All rights reserved.
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
package geo
import "testing"
func TestGeoCalc(t *testing.T) {
dist := 172853.26908429610193707048892974853515625
bearing := 320.8560640269032546711969189345836639404296875
latA, lonA := 33.112, -112.123
latB, lonB := 34.312, -113.311
// DistanceTo
value := DistanceTo(latA, lonA, latB, lonB)
if value != dist {
t.Fatalf("expected '%v', got '%v'", dist, value)
}
// BearingTo
value = BearingTo(latA, lonA, latB, lonB)
if value != bearing {
t.Fatalf("expected '%v', got '%v'", bearing, value)
}
// DestinationPoint
value1, value2 := DestinationPoint(latA, lonA, dist, bearing)
if value1 != latB {
t.Fatalf("expected '%v', got '%v'", latB, value1)
}
if value2 != lonB {
t.Fatalf("expected '%v', got '%v'", lonB, value2)
}
}