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feat: add Product and ProductBy functions (#566)

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Co-authored-by: John.Devitt@cdp.net <JohnDevitt@Mac.cust.communityfibre.co.uk>
This commit is contained in:
JohnDevitt
2025-01-27 01:02:11 +01:00
committed by GitHub
parent 124d3004de
commit 1c1dfd9d29
3 changed files with 112 additions and 3 deletions
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40
math_test.go
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@@ -98,6 +98,46 @@ func TestSumBy(t *testing.T) {
is.Equal(result5, complex128(6_6))
}
func TestProduct(t *testing.T) {
is := assert.New(t)
result1 := Product([]float32{2.3, 3.3, 4, 5.3})
result2 := Product([]int32{2, 3, 4, 5})
result3 := Product([]int32{7, 8, 9, 0})
result4 := Product([]int32{7, -1, 9, 2})
result5 := Product([]uint32{2, 3, 4, 5})
result6 := Product([]uint32{})
result7 := Product([]complex128{4_4, 2_2})
is.Equal(result1, float32(160.908))
is.Equal(result2, int32(120))
is.Equal(result3, int32(0))
is.Equal(result4, int32(-126))
is.Equal(result5, uint32(120))
is.Equal(result6, uint32(0))
is.Equal(result7, complex128(96_8))
}
func TestProductBy(t *testing.T) {
is := assert.New(t)
result1 := ProductBy([]float32{2.3, 3.3, 4, 5.3}, func(n float32) float32 { return n })
result2 := ProductBy([]int32{2, 3, 4, 5}, func(n int32) int32 { return n })
result3 := ProductBy([]int32{7, 8, 9, 0}, func(n int32) int32 { return n })
result4 := ProductBy([]int32{7, -1, 9, 2}, func(n int32) int32 { return n })
result5 := ProductBy([]uint32{2, 3, 4, 5}, func(n uint32) uint32 { return n })
result6 := ProductBy([]uint32{}, func(n uint32) uint32 { return n })
result7 := ProductBy([]complex128{4_4, 2_2}, func(n complex128) complex128 { return n })
is.Equal(result1, float32(160.908))
is.Equal(result2, int32(120))
is.Equal(result3, int32(0))
is.Equal(result4, int32(-126))
is.Equal(result5, uint32(120))
is.Equal(result6, uint32(0))
is.Equal(result7, complex128(96_8))
}
func TestMean(t *testing.T) {
t.Parallel()
is := assert.New(t)