github.com/gopherd/gonum@v0.0.4/lapack/testlapack/iladlr.go (about)

     1  // Copyright ©2015 The Gonum Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package testlapack
     6  
     7  import "testing"
     8  
     9  type Iladlrer interface {
    10  	Iladlr(m, n int, a []float64, lda int) int
    11  }
    12  
    13  func IladlrTest(t *testing.T, impl Iladlrer) {
    14  	for i, test := range []struct {
    15  		a         []float64
    16  		m, n, lda int
    17  		ans       int
    18  	}{
    19  		{
    20  			a:   []float64{0, 0, 0, 0},
    21  			m:   1,
    22  			n:   1,
    23  			lda: 2,
    24  			ans: -1,
    25  		},
    26  		{
    27  			a:   []float64{0, 0, 0, 0},
    28  			m:   2,
    29  			n:   2,
    30  			lda: 2,
    31  			ans: -1,
    32  		},
    33  		{
    34  			a:   []float64{0, 0, 0, 0},
    35  			m:   4,
    36  			n:   1,
    37  			lda: 1,
    38  			ans: -1,
    39  		},
    40  		{
    41  			a:   []float64{0, 0, 0, 0},
    42  			m:   1,
    43  			n:   4,
    44  			lda: 4,
    45  			ans: -1,
    46  		},
    47  		{
    48  			a: []float64{
    49  				1, 2, 3, 4,
    50  				5, 6, 7, 8,
    51  			},
    52  			m:   2,
    53  			n:   4,
    54  			lda: 4,
    55  			ans: 1,
    56  		},
    57  		{
    58  			a: []float64{
    59  				1, 2, 3, 0,
    60  				0, 0, 0, 0,
    61  			},
    62  			m:   2,
    63  			n:   4,
    64  			lda: 4,
    65  			ans: 0,
    66  		},
    67  		{
    68  			a: []float64{
    69  				0, 0, 3, 4,
    70  				0, 0, 0, 0,
    71  			},
    72  			m:   2,
    73  			n:   2,
    74  			lda: 4,
    75  			ans: -1,
    76  		},
    77  	} {
    78  		ans := impl.Iladlr(test.m, test.n, test.a, test.lda)
    79  		if ans != test.ans {
    80  			t.Errorf("Column mismatch case %v. Want: %v, got: %v", i, test.ans, ans)
    81  		}
    82  	}
    83  }