github.com/klaytn/klaytn@v1.10.2/console/jsre/jsre_test.go (about)

     1  // Modifications Copyright 2018 The klaytn Authors
     2  // Copyright 2015 The go-ethereum Authors
     3  // This file is part of the go-ethereum library.
     4  //
     5  // The go-ethereum library is free software: you can redistribute it and/or modify
     6  // it under the terms of the GNU Lesser General Public License as published by
     7  // the Free Software Foundation, either version 3 of the License, or
     8  // (at your option) any later version.
     9  //
    10  // The go-ethereum library is distributed in the hope that it will be useful,
    11  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    12  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    13  // GNU Lesser General Public License for more details.
    14  //
    15  // You should have received a copy of the GNU Lesser General Public License
    16  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    17  //
    18  // This file is derived from internal/jsre/jsre_test.go (2018/06/04).
    19  // Modified and improved for the klaytn development.
    20  
    21  package jsre
    22  
    23  import (
    24  	"io/ioutil"
    25  	"os"
    26  	"path"
    27  	"testing"
    28  	"time"
    29  
    30  	"github.com/robertkrimen/otto"
    31  )
    32  
    33  type testNativeObjectBinding struct{}
    34  
    35  type msg struct {
    36  	Msg string
    37  }
    38  
    39  func (no *testNativeObjectBinding) TestMethod(call otto.FunctionCall) otto.Value {
    40  	m, err := call.Argument(0).ToString()
    41  	if err != nil {
    42  		return otto.UndefinedValue()
    43  	}
    44  	v, _ := call.Otto.ToValue(&msg{m})
    45  	return v
    46  }
    47  
    48  func newWithTestJS(t *testing.T, testjs string) (*JSRE, string) {
    49  	dir, err := ioutil.TempDir("", "jsre-test")
    50  	if err != nil {
    51  		t.Fatal("cannot create temporary directory:", err)
    52  	}
    53  	if testjs != "" {
    54  		if err := ioutil.WriteFile(path.Join(dir, "test.js"), []byte(testjs), os.ModePerm); err != nil {
    55  			t.Fatal("cannot create test.js:", err)
    56  		}
    57  	}
    58  	return New(dir, os.Stdout), dir
    59  }
    60  
    61  func TestExec(t *testing.T) {
    62  	jsre, dir := newWithTestJS(t, `msg = "testMsg"`)
    63  	defer os.RemoveAll(dir)
    64  
    65  	err := jsre.Exec("test.js")
    66  	if err != nil {
    67  		t.Errorf("expected no error, got %v", err)
    68  	}
    69  	val, err := jsre.Run("msg")
    70  	if err != nil {
    71  		t.Errorf("expected no error, got %v", err)
    72  	}
    73  	if !val.IsString() {
    74  		t.Errorf("expected string value, got %v", val)
    75  	}
    76  	exp := "testMsg"
    77  	got, _ := val.ToString()
    78  	if exp != got {
    79  		t.Errorf("expected '%v', got '%v'", exp, got)
    80  	}
    81  	jsre.Stop(false)
    82  }
    83  
    84  func TestNatto(t *testing.T) {
    85  	jsre, dir := newWithTestJS(t, `setTimeout(function(){msg = "testMsg"}, 1);`)
    86  	defer os.RemoveAll(dir)
    87  
    88  	err := jsre.Exec("test.js")
    89  	if err != nil {
    90  		t.Errorf("expected no error, got %v", err)
    91  	}
    92  	time.Sleep(100 * time.Millisecond)
    93  	val, err := jsre.Run("msg")
    94  	if err != nil {
    95  		t.Errorf("expected no error, got %v", err)
    96  	}
    97  	if !val.IsString() {
    98  		t.Errorf("expected string value, got %v", val)
    99  	}
   100  	exp := "testMsg"
   101  	got, _ := val.ToString()
   102  	if exp != got {
   103  		t.Errorf("expected '%v', got '%v'", exp, got)
   104  	}
   105  	jsre.Stop(false)
   106  }
   107  
   108  func TestBind(t *testing.T) {
   109  	jsre := New("", os.Stdout)
   110  	defer jsre.Stop(false)
   111  
   112  	jsre.Bind("no", &testNativeObjectBinding{})
   113  
   114  	_, err := jsre.Run(`no.TestMethod("testMsg")`)
   115  	if err != nil {
   116  		t.Errorf("expected no error, got %v", err)
   117  	}
   118  }
   119  
   120  func TestLoadScript(t *testing.T) {
   121  	jsre, dir := newWithTestJS(t, `msg = "testMsg"`)
   122  	defer os.RemoveAll(dir)
   123  
   124  	_, err := jsre.Run(`loadScript("test.js")`)
   125  	if err != nil {
   126  		t.Errorf("expected no error, got %v", err)
   127  	}
   128  	val, err := jsre.Run("msg")
   129  	if err != nil {
   130  		t.Errorf("expected no error, got %v", err)
   131  	}
   132  	if !val.IsString() {
   133  		t.Errorf("expected string value, got %v", val)
   134  	}
   135  	exp := "testMsg"
   136  	got, _ := val.ToString()
   137  	if exp != got {
   138  		t.Errorf("expected '%v', got '%v'", exp, got)
   139  	}
   140  	jsre.Stop(false)
   141  }