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mat: don't use global rand state

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This commit is contained in:
Dan Kortschak
2020-03-17 21:02:32 +10:30
parent 3efb0d11ee
commit 7b6a63e4e7
15 changed files with 170 additions and 118 deletions
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18
mat/mul_test.go
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@@ -17,6 +17,7 @@ import (
// TODO: Need to add tests where one is overwritten.
func TestMulTypes(t *testing.T) {
t.Parallel()
src := rand.NewSource(1)
for _, test := range []struct {
ar int
ac int
@@ -88,11 +89,11 @@ func TestMulTypes(t *testing.T) {
// Generate random matrices
avec := make([]float64, ar*ac)
randomSlice(avec)
randomSlice(avec, src)
a := NewDense(ar, ac, avec)
bvec := make([]float64, br*bc)
randomSlice(bvec)
randomSlice(bvec, src)
b := NewDense(br, bc, bvec)
@@ -132,7 +133,7 @@ func TestMulTypes(t *testing.T) {
// Normal multiply with existing receiver
c := NewDense(ar, bc, cvec)
randomSlice(cvec)
randomSlice(cvec, src)
testMul(t, a, b, c, acomp, bcomp, ccomp, false, "existing receiver")
// Cast a as a basic matrix
@@ -144,18 +145,19 @@ func TestMulTypes(t *testing.T) {
testMul(t, a, bm, d, acomp, bcomp, ccomp, true, "b is basic, receiver is empty")
d.Reset()
testMul(t, am, bm, d, acomp, bcomp, ccomp, true, "both basic, receiver is empty")
randomSlice(cvec)
randomSlice(cvec, src)
testMul(t, am, b, d, acomp, bcomp, ccomp, true, "a is basic, receiver is full")
randomSlice(cvec)
randomSlice(cvec, src)
testMul(t, a, bm, d, acomp, bcomp, ccomp, true, "b is basic, receiver is full")
randomSlice(cvec)
randomSlice(cvec, src)
testMul(t, am, bm, d, acomp, bcomp, ccomp, true, "both basic, receiver is full")
}
}
func randomSlice(s []float64) {
func randomSlice(s []float64, src rand.Source) {
rnd := rand.New(src)
for i := range s {
s[i] = rand.NormFloat64()
s[i] = rnd.NormFloat64()
}
}