go-ethereum/internal/jsre/jsre_test.go
Eng Zer Jun 8d066f1f42
all: use T.TempDir to create temporary test directories (#24633)
This commit replaces ioutil.TempDir with t.TempDir in tests. The
directory created by t.TempDir is automatically removed when the test
and all its subtests complete.

Prior to this commit, temporary directory created using ioutil.TempDir
had to be removed manually by calling os.RemoveAll, which is omitted in
some tests. The error handling boilerplate e.g.

	defer func() {
		if err := os.RemoveAll(dir); err != nil {
			t.Fatal(err)
		}
	}

is also tedious, but t.TempDir handles this for us nicely.

Reference: https://pkg.go.dev/testing#T.TempDir
Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
2022-04-08 15:44:55 +02:00

132 lines
3.2 KiB
Go

// 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"
"reflect"
"testing"
"time"
"github.com/dop251/goja"
)
type testNativeObjectBinding struct {
vm *goja.Runtime
}
type msg struct {
Msg string
}
func (no *testNativeObjectBinding) TestMethod(call goja.FunctionCall) goja.Value {
m := call.Argument(0).ToString().String()
return no.vm.ToValue(&msg{m})
}
func newWithTestJS(t *testing.T, testjs string) *JSRE {
dir := t.TempDir()
if testjs != "" {
if err := ioutil.WriteFile(path.Join(dir, "test.js"), []byte(testjs), os.ModePerm); err != nil {
t.Fatal("cannot create test.js:", err)
}
}
jsre := New(dir, os.Stdout)
return jsre
}
func TestExec(t *testing.T) {
jsre := newWithTestJS(t, `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.ExportType().Kind() != reflect.String {
t.Errorf("expected string value, got %v", val)
}
exp := "testMsg"
got := val.ToString().String()
if exp != got {
t.Errorf("expected '%v', got '%v'", exp, got)
}
jsre.Stop(false)
}
func TestNatto(t *testing.T) {
jsre := newWithTestJS(t, `setTimeout(function(){msg = "testMsg"}, 1);`)
err := jsre.Exec("test.js")
if err != nil {
t.Fatalf("expected no error, got %v", err)
}
time.Sleep(100 * time.Millisecond)
val, err := jsre.Run("msg")
if err != nil {
t.Fatalf("expected no error, got %v", err)
}
if val.ExportType().Kind() != reflect.String {
t.Fatalf("expected string value, got %v", val)
}
exp := "testMsg"
got := val.ToString().String()
if exp != got {
t.Fatalf("expected '%v', got '%v'", exp, got)
}
jsre.Stop(false)
}
func TestBind(t *testing.T) {
jsre := New("", os.Stdout)
defer jsre.Stop(false)
jsre.Set("no", &testNativeObjectBinding{vm: jsre.vm})
_, err := jsre.Run(`no.TestMethod("testMsg")`)
if err != nil {
t.Errorf("expected no error, got %v", err)
}
}
func TestLoadScript(t *testing.T) {
jsre := newWithTestJS(t, `msg = "testMsg"`)
_, 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.ExportType().Kind() != reflect.String {
t.Errorf("expected string value, got %v", val)
}
exp := "testMsg"
got := val.ToString().String()
if exp != got {
t.Errorf("expected '%v', got '%v'", exp, got)
}
jsre.Stop(false)
}