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// Copyright 2016 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 (
"fmt"
"io/ioutil"
"os"
"testing"
"github.com/dexon-foundation/dexon/internal/cmdtest"
"github.com/docker/docker/pkg/reexec"
)
func tmpdir(t *testing.T) string {
dir, err := ioutil.TempDir("", "geth-test")
if err != nil {
t.Fatal(err)
}
return dir
}
type testgeth struct {
*cmdtest.TestCmd
// template variables for expect
Datadir string
Etherbase string
}
func init() {
// Run the app if we've been exec'd as "geth-test" in runGeth.
reexec.Register("geth-test", func() {
if err := app.Run(os.Args); err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
os.Exit(0)
})
}
func TestMain(m *testing.M) {
// check if we have been reexec'd
if reexec.Init() {
return
}
os.Exit(m.Run())
}
// spawns geth with the given command line args. If the args don't set --datadir, the
// child g gets a temporary data directory.
func runGeth(t *testing.T, args ...string) *testgeth {
tt := &testgeth{}
tt.TestCmd = cmdtest.NewTestCmd(t, tt)
for i, arg := range args {
switch {
case arg == "-datadir" || arg == "--datadir":
if i < len(args)-1 {
tt.Datadir = args[i+1]
}
case arg == "-etherbase" || arg == "--etherbase":
if i < len(args)-1 {
tt.Etherbase = args[i+1]
}
}
}
if tt.Datadir == "" {
tt.Datadir = tmpdir(t)
tt.Cleanup = func() { os.RemoveAll(tt.Datadir) }
args = append([]string{"-datadir", tt.Datadir}, args...)
// Remove the temporary datadir if something fails below.
defer func() {
if t.Failed() {
tt.Cleanup()
}
}()
}
// Boot "geth". This actually runs the test binary but the TestMain
// function will prevent any tests from running.
tt.Run("geth-test", args...)
return tt
}
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