rect/point_test.go

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package rect
import (
"math"
"testing"
)
func TestDistance(t *testing.T) {
var distanceTest = []struct {
p []Point
expected float64
}{
{[]Point{Point{1, 1}, Point{4, 5}}, 5},
{[]Point{Point{-1, -1}, Point{2, 3}}, 5},
{[]Point{Point{1, 1}, Point{2, 2}}, math.Sqrt(2)},
{[]Point{Point{1, 1}, Point{40, 20}}, math.Sqrt(1882)},
}
for _, rt := range distanceTest {
actual := distance(rt.p[0], rt.p[1])
if actual != rt.expected {
t.Errorf(
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"failed distance:\n\texpected: %f\n\t actual: %f",
rt.expected,
actual,
)
}
}
}