func NewTestBackend() *testBackend {
HashRegAddr = common.BigToAddress(common.Big0).Hex() //[2:]
UrlHintAddr = common.BigToAddress(common.Big1).Hex() //[2:]
self := &testBackend{}
self.contracts = make(map[string](map[string]string))
self.contracts[HashRegAddr[2:]] = make(map[string]string)
key := storageAddress(storageMapping(storageIdx2Addr(1), codehash[:]))
self.contracts[HashRegAddr[2:]][key] = hash.Hex()
self.contracts[UrlHintAddr[2:]] = make(map[string]string)
mapaddr := storageMapping(storageIdx2Addr(1), hash[:])
key = storageAddress(storageFixedArray(mapaddr, storageIdx2Addr(0)))
self.contracts[UrlHintAddr[2:]][key] = common.ToHex([]byte(url))
key = storageAddress(storageFixedArray(mapaddr, storageIdx2Addr(1)))
self.contracts[UrlHintAddr[2:]][key] = "0x0"
return self
}
func abiSignature(s string) string {
return common.ToHex(crypto.Sha3([]byte(s))[:4])
}
func storageAddress(addr []byte) string {
return common.ToHex(addr)
}