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package jsre
import (
"github.com/obscuren/otto"
"os"
"path"
"testing"
"github.com/ethereum/go-ethereum/ethutil"
)
var defaultAssetPath = path.Join(os.Getenv("GOPATH"), "src", "github.com", "ethereum", "go-ethereum", "cmd", "mist", "assets", "ext")
type testNativeObjectBinding struct {
toVal func(interface{}) otto.Value
}
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()
}
return no.toVal(&msg{m})
}
func TestExec(t *testing.T) {
jsre := New("/tmp")
ethutil.WriteFile("/tmp/test.js", []byte(`msg = "testMsg"`))
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)
}
// this errors
err = jsre.Exec(path.Join(defaultAssetPath, "bignumber.min.js"))
if err != nil {
t.Errorf("expected no error, got %v", err)
}
_, err = jsre.Run("x = new BigNumber(123.4567);")
if err != nil {
t.Errorf("expected no error, got %v", err)
}
}
func TestBind(t *testing.T) {
jsre := New(defaultAssetPath)
jsre.Bind("no", &testNativeObjectBinding{jsre.ToVal})
val, err := jsre.Run(`no.testMethod("testMsg")`)
if err != nil {
t.Errorf("expected no error, got %v", err)
}
pp, err := jsre.PrettyPrint(val)
if err != nil {
t.Errorf("expected no error, got %v", err)
}
t.Logf("no: %v", pp)
}
func TestRequire(t *testing.T) {
jsre := New(defaultAssetPath)
_, err := jsre.Run("x = new BigNumber(123.4567);")
if err == nil {
t.Errorf("expected error, got nothing")
}
_, err = jsre.Run(`loadScript("bignumber.min.js"); x = new BigNumber(123.4567)`)
if err != nil {
t.Errorf("expected no error, got %v", err)
}
}
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