In service A I have a string that get hashed like this:
fun String.toHash(): Long {
var hashCode = this.hashCode().toLong()
if (hashCode < 0L) {
hashCode *= -1
}
return hashCode
}
I want to replicate this code in service B written in Golang so for the same word I get the exact same hash. For what I understand from Kotlin's documentation the hash applied returns a 64bit integer. So in Go I am doing this:
func hash(s string) int64 {
h := fnv.New64()
h.Write([]byte(s))
v := h.Sum64()
return int64(v)
}
But while unit testing this I do not get the same value. I get:
func Test_hash(t *testing.T) {
tests := []struct {
input string
output int64
}{
{input: "papafritas", output: 1079370635},
}
for _, test := range tests {
got := hash(test.input)
assert.Equal(t, test.output, got)
}
}
Result:
7841672725449611742
Am I doing something wrong?
