| // 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 Zhprer interface { |
| Zhpr(uplo blas.Uplo, n int, alpha float64, x []complex128, incX int, ap []complex128) |
| } |
| |
| func ZhprTest(t *testing.T, impl Zhprer) { |
| for tc, test := range zherTestCases { |
| n := len(test.x) |
| for _, uplo := range []blas.Uplo{blas.Upper, blas.Lower} { |
| for _, incX := range []int{-11, -2, -1, 1, 2, 7} { |
| x := makeZVector(test.x, incX) |
| xCopy := make([]complex128, len(x)) |
| copy(xCopy, x) |
| |
| ap := zPack(uplo, n, test.a, n) |
| impl.Zhpr(uplo, n, test.alpha, x, incX, ap) |
| a := zUnpackAsHermitian(uplo, n, ap) |
| |
| var want []complex128 |
| if incX > 0 { |
| want = makeZGeneral(test.want, n, n, max(1, n)) |
| } else { |
| want = makeZGeneral(test.wantRev, n, n, max(1, n)) |
| } |
| |
| if !zsame(x, xCopy) { |
| t.Errorf("Case %v (uplo=%v,incX=%v,alpha=%v): unexpected modification of x", tc, uplo, incX, test.alpha) |
| } |
| if !zsame(want, a) { |
| t.Errorf("Case %v (uplo=%v,incX=%v,alpha=%v): unexpected result\nwant: %v\ngot: %v", tc, uplo, incX, test.alpha, want, a) |
| } |
| } |
| } |
| } |
| } |