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path: root/cmd/ethkey/message_test.go
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// Copyright 2017 The go-ethereum Authors
// This file is part of go-ethereum.
//
// go-ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// go-ethereum is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.

package main

import (
    "io/ioutil"
    "os"
    "path/filepath"
    "testing"
)

func TestMessageSignVerify(t *testing.T) {
    tmpdir, err := ioutil.TempDir("", "ethkey-test")
    if err != nil {
        t.Fatal("Can't create temporary directory:", err)
    }
    defer os.RemoveAll(tmpdir)

    keyfile := filepath.Join(tmpdir, "the-keyfile")
    message := "test message"

    // Create the key.
    generate := runEthkey(t, "generate", keyfile)
    generate.Expect(`
!! Unsupported terminal, password will be echoed.
Passphrase: {{.InputLine "foobar"}}
Repeat passphrase: {{.InputLine "foobar"}}
`)
    _, matches := generate.ExpectRegexp(`Address: (0x[0-9a-fA-F]{40})\n`)
    address := matches[1]
    generate.ExpectExit()

    // Sign a message.
    sign := runEthkey(t, "signmessage", keyfile, message)
    sign.Expect(`
!! Unsupported terminal, password will be echoed.
Passphrase: {{.InputLine "foobar"}}
`)
    _, matches = sign.ExpectRegexp(`Signature: ([0-9a-f]+)\n`)
    signature := matches[1]
    sign.ExpectExit()

    // Verify the message.
    verify := runEthkey(t, "verifymessage", address, signature, message)
    _, matches = verify.ExpectRegexp(`
Signature verification successful!
Recovered public key: [0-9a-f]+
Recovered address: (0x[0-9a-fA-F]{40})
`)
    recovered := matches[1]
    verify.ExpectExit()

    if recovered != address {
        t.Error("recovered address doesn't match generated key")
    }
}