| // Copyright ©2014 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 ( |
| "math" |
| "testing" |
| ) |
| |
| type Dgerer interface { |
| Dger(m, n int, alpha float64, x []float64, incX int, y []float64, incY int, a []float64, lda int) |
| } |
| |
| func DgerTest(t *testing.T, blasser Dgerer) { |
| for _, test := range []struct { |
| name string |
| a [][]float64 |
| m int |
| n int |
| x []float64 |
| y []float64 |
| incX int |
| incY int |
| |
| want [][]float64 |
| }{ |
| { |
| name: "M gt N inc 1", |
| m: 5, |
| n: 3, |
| a: [][]float64{ |
| {1.3, 2.4, 3.5}, |
| {2.6, 2.8, 3.3}, |
| {-1.3, -4.3, -9.7}, |
| {8, 9, -10}, |
| {-12, -14, -6}, |
| }, |
| x: []float64{-2, -3, 0, 1, 2}, |
| y: []float64{-1.1, 5, 0}, |
| incX: 1, |
| incY: 1, |
| want: [][]float64{{3.5, -7.6, 3.5}, {5.9, -12.2, 3.3}, {-1.3, -4.3, -9.7}, {6.9, 14, -10}, {-14.2, -4, -6}}, |
| }, |
| { |
| name: "M eq N inc 1", |
| m: 3, |
| n: 3, |
| a: [][]float64{ |
| {1.3, 2.4, 3.5}, |
| {2.6, 2.8, 3.3}, |
| {-1.3, -4.3, -9.7}, |
| }, |
| x: []float64{-2, -3, 0}, |
| y: []float64{-1.1, 5, 0}, |
| incX: 1, |
| incY: 1, |
| want: [][]float64{{3.5, -7.6, 3.5}, {5.9, -12.2, 3.3}, {-1.3, -4.3, -9.7}}, |
| }, |
| |
| { |
| name: "M lt N inc 1", |
| m: 3, |
| n: 6, |
| a: [][]float64{ |
| {1.3, 2.4, 3.5, 4.8, 1.11, -9}, |
| {2.6, 2.8, 3.3, -3.4, 6.2, -8.7}, |
| {-1.3, -4.3, -9.7, -3.1, 8.9, 8.9}, |
| }, |
| x: []float64{-2, -3, 0}, |
| y: []float64{-1.1, 5, 0, 9, 19, 22}, |
| incX: 1, |
| incY: 1, |
| want: [][]float64{{3.5, -7.6, 3.5, -13.2, -36.89, -53}, {5.9, -12.2, 3.3, -30.4, -50.8, -74.7}, {-1.3, -4.3, -9.7, -3.1, 8.9, 8.9}}, |
| }, |
| { |
| name: "M gt N inc not 1", |
| m: 5, |
| n: 3, |
| a: [][]float64{ |
| {1.3, 2.4, 3.5}, |
| {2.6, 2.8, 3.3}, |
| {-1.3, -4.3, -9.7}, |
| {8, 9, -10}, |
| {-12, -14, -6}, |
| }, |
| x: []float64{-2, -3, 0, 1, 2, 6, 0, 9, 7}, |
| y: []float64{-1.1, 5, 0, 8, 7, -5, 7}, |
| incX: 2, |
| incY: 3, |
| want: [][]float64{{3.5, -13.6, -10.5}, {2.6, 2.8, 3.3}, {-3.5, 11.7, 4.3}, {8, 9, -10}, {-19.700000000000003, 42, 43}}, |
| }, |
| { |
| name: "M eq N inc not 1", |
| m: 3, |
| n: 3, |
| a: [][]float64{ |
| {1.3, 2.4, 3.5}, |
| {2.6, 2.8, 3.3}, |
| {-1.3, -4.3, -9.7}, |
| }, |
| x: []float64{-2, -3, 0, 8, 7, -9, 7, -6, 12, 6, 6, 6, -11}, |
| y: []float64{-1.1, 5, 0, 0, 9, 8, 6}, |
| incX: 4, |
| incY: 3, |
| want: [][]float64{{3.5, 2.4, -8.5}, {-5.1, 2.8, 45.3}, {-14.5, -4.3, 62.3}}, |
| }, |
| { |
| name: "M lt N inc not 1", |
| m: 3, |
| n: 6, |
| a: [][]float64{ |
| {1.3, 2.4, 3.5, 4.8, 1.11, -9}, |
| {2.6, 2.8, 3.3, -3.4, 6.2, -8.7}, |
| {-1.3, -4.3, -9.7, -3.1, 8.9, 8.9}, |
| }, |
| x: []float64{-2, -3, 0, 0, 8, 0, 9, -3}, |
| y: []float64{-1.1, 5, 0, 9, 19, 22, 11, -8.11, -9.22, 9.87, 7}, |
| incX: 3, |
| incY: 2, |
| want: [][]float64{{3.5, 2.4, -34.5, -17.2, 19.55, -23}, {2.6, 2.8, 3.3, -3.4, 6.2, -8.7}, {-11.2, -4.3, 161.3, 95.9, -74.08, 71.9}}, |
| }, |
| { |
| name: "Y NaN element", |
| m: 1, |
| n: 1, |
| a: [][]float64{{1.3}}, |
| x: []float64{1.3}, |
| y: []float64{math.NaN()}, |
| incX: 1, |
| incY: 1, |
| want: [][]float64{{math.NaN()}}, |
| }, |
| { |
| name: "M eq N large inc 1", |
| m: 7, |
| n: 7, |
| x: []float64{6.2, -5, 88.68, 43.4, -30.5, -40.2, 19.9}, |
| y: []float64{1.5, 21.7, -28.7, -11.9, 18.1, 3.1, 21}, |
| a: [][]float64{ |
| {-20.5, 17.1, -8.4, -23.8, 3.9, 7.7, 6.25}, |
| {2.9, -0.29, 25.6, -9.4, 36.5, 9.7, 2.3}, |
| {4.1, -34.1, 10.3, 4.5, -42.05, 9.4, 4}, |
| {19.2, 9.8, -32.7, 4.1, 4.4, -22.5, -7.8}, |
| {3.6, -24.5, 21.7, 8.6, -13.82, 38.05, -2.29}, |
| {39.4, -40.5, 7.9, -2.5, -7.7, 18.1, -25.5}, |
| {-18.5, 43.2, 2.1, 30.1, 3.02, -31.1, -7.6}, |
| }, |
| incX: 1, |
| incY: 1, |
| want: [][]float64{ |
| {-11.2, 151.64, -186.34, -97.58, 116.12, 26.92, 136.45}, |
| {-4.6, -108.79, 169.1, 50.1, -54, -5.8, -102.7}, |
| {137.12, 1890.256, -2534.816, -1050.792, 1563.058, 284.308, 1866.28}, |
| {84.3, 951.58, -1278.28, -512.36, 789.94, 112.04, 903.6}, |
| {-42.15, -686.35, 897.05, 371.55, -565.87, -56.5, -642.79}, |
| {-20.9, -912.84, 1161.64, 475.88, -735.32, -106.52, -869.7}, |
| {11.35, 475.03, -569.03, -206.71, 363.21, 30.59, 410.3}, |
| }, |
| }, |
| { |
| name: "M eq N large inc not 1", |
| m: 7, |
| n: 7, |
| x: []float64{6.2, 100, 200, -5, 300, 400, 88.68, 100, 200, 43.4, 300, 400, -30.5, 100, 200, -40.2, 300, 400, 19.9}, |
| y: []float64{1.5, 100, 200, 300, 21.7, 100, 200, 300, -28.7, 100, 200, 300, -11.9, 100, 200, 300, 18.1, 100, 200, 300, 3.1, 100, 200, 300, 21}, |
| a: [][]float64{ |
| {-20.5, 17.1, -8.4, -23.8, 3.9, 7.7, 6.25}, |
| {2.9, -0.29, 25.6, -9.4, 36.5, 9.7, 2.3}, |
| {4.1, -34.1, 10.3, 4.5, -42.05, 9.4, 4}, |
| {19.2, 9.8, -32.7, 4.1, 4.4, -22.5, -7.8}, |
| {3.6, -24.5, 21.7, 8.6, -13.82, 38.05, -2.29}, |
| {39.4, -40.5, 7.9, -2.5, -7.7, 18.1, -25.5}, |
| {-18.5, 43.2, 2.1, 30.1, 3.02, -31.1, -7.6}, |
| }, |
| incX: 3, |
| incY: 4, |
| want: [][]float64{ |
| {-11.2, 151.64, -186.34, -97.58, 116.12, 26.92, 136.45}, |
| {-4.6, -108.79, 169.1, 50.1, -54, -5.8, -102.7}, |
| {137.12, 1890.256, -2534.816, -1050.792, 1563.058, 284.308, 1866.28}, |
| {84.3, 951.58, -1278.28, -512.36, 789.94, 112.04, 903.6}, |
| {-42.15, -686.35, 897.05, 371.55, -565.87, -56.5, -642.79}, |
| {-20.9, -912.84, 1161.64, 475.88, -735.32, -106.52, -869.7}, |
| {11.35, 475.03, -569.03, -206.71, 363.21, 30.59, 410.3}, |
| }, |
| }, |
| } { |
| // TODO: Add tests where a is longer |
| // TODO: Add panic tests |
| // TODO: Add negative increment tests |
| |
| x := sliceCopy(test.x) |
| y := sliceCopy(test.y) |
| |
| a := sliceOfSliceCopy(test.a) |
| |
| // Test with row major |
| alpha := 1.0 |
| aFlat := flatten(a) |
| blasser.Dger(test.m, test.n, alpha, x, test.incX, y, test.incY, aFlat, test.n) |
| ans := unflatten(aFlat, test.m, test.n) |
| dgercomp(t, x, test.x, y, test.y, ans, test.want, test.name+" row maj") |
| |
| // Test with different alpha |
| alpha = 4.0 |
| aFlat = flatten(a) |
| blasser.Dger(test.m, test.n, alpha, x, test.incX, y, test.incY, aFlat, test.n) |
| ans = unflatten(aFlat, test.m, test.n) |
| trueCopy := sliceOfSliceCopy(test.want) |
| for i := range trueCopy { |
| for j := range trueCopy[i] { |
| trueCopy[i][j] = alpha*(trueCopy[i][j]-a[i][j]) + a[i][j] |
| } |
| } |
| dgercomp(t, x, test.x, y, test.y, ans, trueCopy, test.name+" row maj alpha") |
| } |
| } |
| |
| func dgercomp(t *testing.T, x, xCopy, y, yCopy []float64, ans [][]float64, trueAns [][]float64, name string) { |
| if !dSliceEqual(x, xCopy) { |
| t.Errorf("case %v: x modified during call to dger\n%v\n%v", name, x, xCopy) |
| } |
| if !dSliceEqual(y, yCopy) { |
| t.Errorf("case %v: y modified during call to dger\n%v\n%v", name, y, yCopy) |
| } |
| |
| for i := range ans { |
| if !dSliceTolEqual(ans[i], trueAns[i]) { |
| t.Errorf("case %v: answer mismatch at %v.\nExpected %v,\nFound %v", name, i, trueAns, ans) |
| break |
| } |
| } |
| } |