1
0
mirror of https://github.com/sjwhitworth/golearn.git synced 2025-04-28 13:48:56 +08:00
golearn/metrics/pairwise/euclidean_test.go
Richard Townsend ff52c013eb Update gonum to latest version
Should fix #200 and #205
2018-03-24 00:19:35 +00:00

37 lines
740 B
Go

package pairwise
import (
"testing"
"gonum.org/v1/gonum/mat"
. "github.com/smartystreets/goconvey/convey"
)
func TestEuclidean(t *testing.T) {
var vectorX, vectorY *mat.Dense
euclidean := NewEuclidean()
Convey("Given two vectors", t, func() {
vectorX = mat.NewDense(3, 1, []float64{1, 2, 3})
vectorY = mat.NewDense(3, 1, []float64{2, 4, 5})
Convey("When doing inner product", func() {
result := euclidean.InnerProduct(vectorX, vectorY)
Convey("The result should be 25", func() {
So(result, ShouldEqual, 25)
})
})
Convey("When calculating distance", func() {
result := euclidean.Distance(vectorX, vectorY)
Convey("The result should be 3", func() {
So(result, ShouldEqual, 3)
})
})
})
}