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// Copyright ©2017 The Gonum Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package testblas
import (
"testing"
"gonum.org/v1/gonum/blas"
)
type Zhpr2er interface {
Zhpr2(uplo blas.Uplo, n int, alpha complex128, x []complex128, incX int, y []complex128, incY int, ap []complex128)
}
func Zhpr2Test(t *testing.T, impl Zhpr2er) {
for tc, test := range zher2TestCases {
n := len(test.x)
incX := test.incX
incY := test.incY
for _, uplo := range []blas.Uplo{blas.Upper, blas.Lower} {
x := makeZVector(test.x, incX)
xCopy := make([]complex128, len(x))
copy(xCopy, x)
y := makeZVector(test.y, incY)
yCopy := make([]complex128, len(y))
copy(yCopy, y)
ap := zPack(uplo, n, test.a, n)
impl.Zhpr2(uplo, n, test.alpha, x, incX, y, incY, ap)
a := zUnpackAsHermitian(uplo, n, ap)
if !zsame(x, xCopy) {
t.Errorf("Case %v (uplo=%v,incX=%v,incY=%v): unexpected modification of x", tc, uplo, incX, incY)
}
if !zsame(y, yCopy) {
t.Errorf("Case %v (uplo=%v,incX=%v,incY=%v): unexpected modification of y", tc, uplo, incX, incY)
}
if !zsame(test.want, a) {
t.Errorf("Case %v (uplo=%v,incX=%v,incY=%v): unexpected result\nwant: %v\ngot: %v", tc, uplo, incX, incY, test.want, a)
}
}
}
}
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