func TestHash(t *testing.T) {
data := []byte("some other data")
block := NewBlock(data)
hash, err := mh.Sum(data, mh.SHA2_256, -1)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(block.Multihash(), hash) {
t.Error("wrong multihash")
}
}
func TestManualHash(t *testing.T) {
oldDebugState := u.Debug
defer (func() {
u.Debug = oldDebugState
})()
data := []byte("I can't figure out more names .. data")
hash, err := mh.Sum(data, mh.SHA2_256, -1)
if err != nil {
t.Fatal(err)
}
c := cid.NewCidV0(hash)
u.Debug = false
block, err := NewBlockWithCid(data, c)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(block.Multihash(), hash) {
t.Error("wrong multihash")
}
data[5] = byte((uint32(data[5]) + 5) % 256) // Transfrom hash to be different
block, err = NewBlockWithCid(data, c)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(block.Multihash(), hash) {
t.Error("wrong multihash")
}
u.Debug = true
block, err = NewBlockWithCid(data, c)
if err != ErrWrongHash {
t.Fatal(err)
}
}