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|
package models
import (
"encoding/hex"
"testing"
)
func TestInfohashImport(t *testing.T) {
tests := []struct {
str string
ok bool
}{
{str: "5a3ce1c14e7a08645677bbd1cfe7d8f956d53256", ok: true},
{str: "5a3ce1c14e7a08645677bbd1cfe7d8f956d53256000", ok: false},
}
for _, tt := range tests {
ih, err := InfohashFromString(tt.str)
if tt.ok {
if err != nil {
t.Errorf("FromString failed with %s", err)
}
idBytes, err := hex.DecodeString(tt.str)
if err != nil {
t.Errorf("failed to decode %s to hex", tt.str)
}
ih2 := Infohash(idBytes)
if !ih.Equal(ih2) {
t.Errorf("expected %s to equal %s", ih, ih2)
}
} else {
if err == nil {
t.Errorf("FromString should have failed for %s", tt.str)
}
}
}
}
func TestInfohashLength(t *testing.T) {
ih := GenInfohash()
if len(ih) != 20 {
t.Errorf("%s as string should be length 20, got %d", ih, len(ih))
}
}
func TestInfohashDistance(t *testing.T) {
id := "d1c5676ae7ac98e8b19f63565905105e3c4c37a2"
var tests = []struct {
ih string
other string
distance int
}{
{id, id, 160},
{id, "d1c5676ae7ac98e8b19f63565905105e3c4c37a3", 159},
}
ih, err := InfohashFromString(id)
if err != nil {
t.Errorf("Failed to create Infohash: %s", err)
}
for _, tt := range tests {
other, err := InfohashFromString(tt.other)
if err != nil {
t.Errorf("Failed to create Infohash: %s", err)
}
dist := ih.Distance(*other)
if dist != tt.distance {
t.Errorf("Distance() => %d, expected %d", dist, tt.distance)
}
}
}
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