github.com/sberex/go-sberex@v1.8.2-0.20181113200658-ed96ac38f7d7/internal/jsre/jsre_test.go (about)

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