func becnchmark(b *testing.B, h hash.Hash32, n int64) {
b.SetBytes(n)
data := make([]byte, n)
for i := range data {
data[i] = byte(i)
}
in := make([]byte, 0, h.Size())
b.ResetTimer()
for i := 0; i < b.N; i++ {
h.Reset()
h.Write(data)
h.Sum(in)
}
}
func benchmark(b *testing.B, h hash.Hash32, n, alignment int64) {
b.SetBytes(n)
data := make([]byte, n+alignment)
data = data[alignment:]
for i := range data {
data[i] = byte(i)
}
in := make([]byte, 0, h.Size())
// Warm up
h.Reset()
h.Write(data)
h.Sum(in)
b.ResetTimer()
for i := 0; i < b.N; i++ {
h.Reset()
h.Write(data)
h.Sum(in)
}
}
Describe("Reset", func() {
It("sets back to 0", func() {
Expect(jhash.Sum32()).To(Equal(uint32(0)))
jhash.Write(key)
Expect(jhash.Sum32()).NotTo(Equal(uint32(0)))
jhash.Reset()
Expect(jhash.Sum32()).To(Equal(uint32(0)))
})
})
Describe("Size", func() {
It("is 4", func() {
Expect(jhash.Size()).To(Equal(4))
})
})
Describe("BlockSize", func() {
It("is 1", func() {
Expect(jhash.BlockSize()).To(Equal(1))
})
})
Describe("Sum32", func() {
It("defaults to 0", func() {