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- // Copyright 2015 The go-ethereum Authors
- // This file is part of the go-ethereum library.
- //
- // The go-ethereum library is free software: you can redistribute it and/or modify
- // it under the terms of the GNU Lesser General Public License as published by
- // the Free Software Foundation, either version 3 of the License, or
- // (at your option) any later version.
- //
- // The go-ethereum library 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 Lesser General Public License for more details.
- //
- // You should have received a copy of the GNU Lesser General Public License
- // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
- package node
- import (
- "bytes"
- "io/ioutil"
- "os"
- "path/filepath"
- "runtime"
- "testing"
- "github.com/ethereum/go-ethereum/crypto"
- "github.com/ethereum/go-ethereum/p2p"
- )
- // Tests that datadirs can be successfully created, be them manually configured
- // ones or automatically generated temporary ones.
- func TestDatadirCreation(t *testing.T) {
- // Create a temporary data dir and check that it can be used by a node
- dir, err := ioutil.TempDir("", "")
- if err != nil {
- t.Fatalf("failed to create manual data dir: %v", err)
- }
- defer os.RemoveAll(dir)
- if _, err := New(&Config{DataDir: dir}); err != nil {
- t.Fatalf("failed to create stack with existing datadir: %v", err)
- }
- // Generate a long non-existing datadir path and check that it gets created by a node
- dir = filepath.Join(dir, "a", "b", "c", "d", "e", "f")
- if _, err := New(&Config{DataDir: dir}); err != nil {
- t.Fatalf("failed to create stack with creatable datadir: %v", err)
- }
- if _, err := os.Stat(dir); err != nil {
- t.Fatalf("freshly created datadir not accessible: %v", err)
- }
- // Verify that an impossible datadir fails creation
- file, err := ioutil.TempFile("", "")
- if err != nil {
- t.Fatalf("failed to create temporary file: %v", err)
- }
- defer os.Remove(file.Name())
- dir = filepath.Join(file.Name(), "invalid/path")
- if _, err := New(&Config{DataDir: dir}); err == nil {
- t.Fatalf("protocol stack created with an invalid datadir")
- }
- }
- // Tests that IPC paths are correctly resolved to valid endpoints of different
- // platforms.
- func TestIPCPathResolution(t *testing.T) {
- var tests = []struct {
- DataDir string
- IPCPath string
- Windows bool
- Endpoint string
- }{
- {"", "", false, ""},
- {"data", "", false, ""},
- {"", "geth.ipc", false, filepath.Join(os.TempDir(), "geth.ipc")},
- {"data", "geth.ipc", false, "data/geth.ipc"},
- {"data", "./geth.ipc", false, "./geth.ipc"},
- {"data", "/geth.ipc", false, "/geth.ipc"},
- {"", "", true, ``},
- {"data", "", true, ``},
- {"", "geth.ipc", true, `\\.\pipe\geth.ipc`},
- {"data", "geth.ipc", true, `\\.\pipe\geth.ipc`},
- {"data", `\\.\pipe\geth.ipc`, true, `\\.\pipe\geth.ipc`},
- }
- for i, test := range tests {
- // Only run when platform/test match
- if (runtime.GOOS == "windows") == test.Windows {
- if endpoint := (&Config{DataDir: test.DataDir, IPCPath: test.IPCPath}).IPCEndpoint(); endpoint != test.Endpoint {
- t.Errorf("test %d: IPC endpoint mismatch: have %s, want %s", i, endpoint, test.Endpoint)
- }
- }
- }
- }
- // Tests that node keys can be correctly created, persisted, loaded and/or made
- // ephemeral.
- func TestNodeKeyPersistency(t *testing.T) {
- // Create a temporary folder and make sure no key is present
- dir, err := ioutil.TempDir("", "node-test")
- if err != nil {
- t.Fatalf("failed to create temporary data directory: %v", err)
- }
- defer os.RemoveAll(dir)
- keyfile := filepath.Join(dir, "unit-test", datadirPrivateKey)
- // Configure a node with a preset key and ensure it's not persisted
- key, err := crypto.GenerateKey()
- if err != nil {
- t.Fatalf("failed to generate one-shot node key: %v", err)
- }
- config := &Config{Name: "unit-test", DataDir: dir, P2P: p2p.Config{PrivateKey: key}}
- config.NodeKey()
- if _, err := os.Stat(filepath.Join(keyfile)); err == nil {
- t.Fatalf("one-shot node key persisted to data directory")
- }
- // Configure a node with no preset key and ensure it is persisted this time
- config = &Config{Name: "unit-test", DataDir: dir}
- config.NodeKey()
- if _, err := os.Stat(keyfile); err != nil {
- t.Fatalf("node key not persisted to data directory: %v", err)
- }
- if _, err = crypto.LoadECDSA(keyfile); err != nil {
- t.Fatalf("failed to load freshly persisted node key: %v", err)
- }
- blob1, err := ioutil.ReadFile(keyfile)
- if err != nil {
- t.Fatalf("failed to read freshly persisted node key: %v", err)
- }
- // Configure a new node and ensure the previously persisted key is loaded
- config = &Config{Name: "unit-test", DataDir: dir}
- config.NodeKey()
- blob2, err := ioutil.ReadFile(filepath.Join(keyfile))
- if err != nil {
- t.Fatalf("failed to read previously persisted node key: %v", err)
- }
- if !bytes.Equal(blob1, blob2) {
- t.Fatalf("persisted node key mismatch: have %x, want %x", blob2, blob1)
- }
- // Configure ephemeral node and ensure no key is dumped locally
- config = &Config{Name: "unit-test", DataDir: ""}
- config.NodeKey()
- if _, err := os.Stat(filepath.Join(".", "unit-test", datadirPrivateKey)); err == nil {
- t.Fatalf("ephemeral node key persisted to disk")
- }
- }
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