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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 jsre
import (
"io/ioutil"
"os"
"path"
"testing"
"time"
"github.com/robertkrimen/otto"
)
type testNativeObjectBinding struct{}
type msg struct {
Msg string
}
func (no *testNativeObjectBinding) TestMethod(call otto.FunctionCall) otto.Value {
m, err := call.Argument(0).ToString()
if err != nil {
return otto.UndefinedValue()
}
v, _ := call.Otto.ToValue(&msg{m})
return v
}
func newWithTestJS(t *testing.T, testjs string) (*JSRE, string) {
dir, err := ioutil.TempDir("", "jsre-test")
if err != nil {
t.Fatal("cannot create temporary directory:", err)
}
if testjs != "" {
if err := ioutil.WriteFile(path.Join(dir, "test.js"), []byte(testjs), os.ModePerm); err != nil {
t.Fatal("cannot create test.js:", err)
}
}
return New(dir, os.Stdout), dir
}
func TestExec(t *testing.T) {
jsre, dir := newWithTestJS(t, `msg = "testMsg"`)
defer os.RemoveAll(dir)
err := jsre.Exec("test.js")
if err != nil {
t.Errorf("expected no error, got %v", err)
}
val, err := jsre.Run("msg")
if err != nil {
t.Errorf("expected no error, got %v", err)
}
if !val.IsString() {
t.Errorf("expected string value, got %v", val)
}
exp := "testMsg"
got, _ := val.ToString()
if exp != got {
t.Errorf("expected '%v', got '%v'", exp, got)
}
jsre.Stop(false)
}
func TestNatto(t *testing.T) {
jsre, dir := newWithTestJS(t, `setTimeout(function(){msg = "testMsg"}, 1);`)
defer os.RemoveAll(dir)
err := jsre.Exec("test.js")
if err != nil {
t.Errorf("expected no error, got %v", err)
}
time.Sleep(100 * time.Millisecond)
val, err := jsre.Run("msg")
if err != nil {
t.Errorf("expected no error, got %v", err)
}
if !val.IsString() {
t.Errorf("expected string value, got %v", val)
}
exp := "testMsg"
got, _ := val.ToString()
if exp != got {
t.Errorf("expected '%v', got '%v'", exp, got)
}
jsre.Stop(false)
}
func TestBind(t *testing.T) {
jsre := New("", os.Stdout)
defer jsre.Stop(false)
jsre.Bind("no", &testNativeObjectBinding{})
_, err := jsre.Run(`no.TestMethod("testMsg")`)
if err != nil {
t.Errorf("expected no error, got %v", err)
}
}
func TestLoadScript(t *testing.T) {
jsre, dir := newWithTestJS(t, `msg = "testMsg"`)
defer os.RemoveAll(dir)
_, err := jsre.Run(`loadScript("test.js")`)
if err != nil {
t.Errorf("expected no error, got %v", err)
}
val, err := jsre.Run("msg")
if err != nil {
t.Errorf("expected no error, got %v", err)
}
if !val.IsString() {
t.Errorf("expected string value, got %v", val)
}
exp := "testMsg"
got, _ := val.ToString()
if exp != got {
t.Errorf("expected '%v', got '%v'", exp, got)
}
jsre.Stop(false)
}
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