path: root/common/resolver/resolver_test.go

package resolver

import (
    "testing"

    "github.com/ethereum/go-ethereum/common"
    "github.com/ethereum/go-ethereum/crypto"
)

type testBackend struct {
    // contracts mock
    contracts map[string](map[string]string)
}

var (
    text     = "test"
    codehash = "1234" //common.RightPadString("1234", 64)
    hash     = common.Bytes2Hex(crypto.Sha3([]byte(text)))
    url      = "bzz://bzzhash/my/path/contr.act"
)

func NewTestBackend() *testBackend {
    self := &testBackend{}
    self.contracts = make(map[string](map[string]string))

    self.contracts["0x"+HashRegContractAddress] = make(map[string]string)
    key := storageAddress(1, common.Hex2BytesFixed(codehash, 32))
    self.contracts["0x"+HashRegContractAddress][key] = "0x" + hash

    self.contracts["0x"+URLHintContractAddress] = make(map[string]string)
    key = storageAddress(1, common.Hex2BytesFixed(hash, 32))
    self.contracts["0x"+URLHintContractAddress][key] = "0x" + common.Bytes2Hex([]byte(url))

    return self
}

func (self *testBackend) StorageAt(ca, sa string) (res string) {
    c := self.contracts[ca]
    if c == nil {
        return
    }
    res = c[sa]
    return
}

func TestKeyToContentHash(t *testing.T) {
    b := NewTestBackend()
    res := New(b, URLHintContractAddress, HashRegContractAddress)
    chash := common.Hash{}
    copy(chash[:], common.Hex2BytesFixed(codehash, 32))

    got, err := res.KeyToContentHash(chash)
    if err != nil {
        t.Errorf("expected no error, got %v", err)
    } else {
        if common.Bytes2Hex(got[:]) != hash {
            t.Errorf("incorrect result, expected %x, got %x: ", hash, common.Bytes2Hex(got[:]))
        }
    }
}

func TestContentHashToUrl(t *testing.T) {
    b := NewTestBackend()
    res := New(b, URLHintContractAddress, HashRegContractAddress)
    chash := common.Hash{}
    copy(chash[:], common.Hex2BytesFixed(hash, 32))
    got, err := res.ContentHashToUrl(chash)
    if err != nil {
        t.Errorf("expected no error, got %v", err)
    } else {
        if string(got[:]) != url {
            t.Errorf("incorrect result, expected %v, got %s: ", url, string(got[:]))
        }
    }
}

func TestKeyToUrl(t *testing.T) {
}