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// Copyright ©2018 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 Ztpmver interface {
Ztpmv(uplo blas.Uplo, trans blas.Transpose, diag blas.Diag, n int, ap []complex128, x []complex128, incX int)
}
func ZtpmvTest(t *testing.T, impl Ztpmver) {
for tc, test := range ztrmvTestCases {
n := len(test.x)
uplo := test.uplo
for _, trans := range []blas.Transpose{blas.NoTrans, blas.Trans, blas.ConjTrans} {
for _, diag := range []blas.Diag{blas.NonUnit, blas.Unit} {
for _, incX := range []int{-11, -2, -1, 1, 2, 7} {
ap := zPack(uplo, n, test.a, n)
apCopy := make([]complex128, len(ap))
copy(apCopy, ap)
x := makeZVector(test.x, incX)
impl.Ztpmv(uplo, trans, diag, n, ap, x, incX)
if !zsame(ap, apCopy) {
t.Errorf("Case %v (uplo=%v,trans=%v,diag=%v,incX=%v): unexpected modification of A", tc, uplo, trans, diag, incX)
}
var want []complex128
if diag == blas.NonUnit {
switch {
case trans == blas.NoTrans && incX > 0:
want = makeZVector(test.want, incX)
case trans == blas.NoTrans && incX < 0:
want = makeZVector(test.wantNeg, incX)
case trans == blas.Trans && incX > 0:
want = makeZVector(test.wantTrans, incX)
case trans == blas.Trans && incX < 0:
want = makeZVector(test.wantTransNeg, incX)
case trans == blas.ConjTrans && incX > 0:
want = makeZVector(test.wantConjTrans, incX)
case trans == blas.ConjTrans && incX < 0:
want = makeZVector(test.wantConjTransNeg, incX)
}
} else {
switch {
case trans == blas.NoTrans && incX > 0:
want = makeZVector(test.wantUnit, incX)
case trans == blas.NoTrans && incX < 0:
want = makeZVector(test.wantUnitNeg, incX)
case trans == blas.Trans && incX > 0:
want = makeZVector(test.wantUnitTrans, incX)
case trans == blas.Trans && incX < 0:
want = makeZVector(test.wantUnitTransNeg, incX)
case trans == blas.ConjTrans && incX > 0:
want = makeZVector(test.wantUnitConjTrans, incX)
case trans == blas.ConjTrans && incX < 0:
want = makeZVector(test.wantUnitConjTransNeg, incX)
}
}
if !zsame(x, want) {
t.Errorf("Case %v (uplo=%v,trans=%v,diag=%v,incX=%v): unexpected result\nwant %v\ngot %v", tc, uplo, trans, diag, incX, want, x)
}
}
}
}
}
}
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