motto_test.go

// Copyright 2014 dong<ddliuhb@gmail.com>.
// Licensed under the MIT license.
//
// Motto - Modular Javascript environment.
package motto

import (
	"github.com/robertkrimen/otto"
	"io/ioutil"
	"testing"
)

func TestModule(t *testing.T) {
	_, v, err := Run("tests/index.js")
	if err != nil {
		t.Error(err)
	}

	i, _ := v.ToString()
	if i != "rat" {
		t.Error("testing result: ", i, "!=", "rat")
	}
}

func TestNpmModule(t *testing.T) {
	_, v, err := Run("tests/npm/index.js")

	if err != nil {
		t.Error(err)
	}

	i, _ := v.ToInteger()

	if i != 1 {
		t.Error("npm test failed: ", i, "!=", 1)
	}
}

func TestCoreModule(t *testing.T) {
	vm := New()
	vm.AddModule("fs", fsModuleLoader)

	v, err := vm.Run("tests/core_module_test.js")
	if err != nil {
		t.Error(err)
	}

	s, _ := v.ToString()
	if s != "cat" {
		t.Error("core module test failed: ", s, "!=", "cat")
	}
}

func fsModuleLoader(vm *Motto) (otto.Value, error) {
	fs, _ := vm.Object(`({})`)
	fs.Set("readFileSync", func(call otto.FunctionCall) otto.Value {
		filename, _ := call.Argument(0).ToString()
		bytes, err := ioutil.ReadFile(filename)
		if err != nil {
			return otto.UndefinedValue()
		}

		v, _ := call.Otto.ToValue(string(bytes))
		return v
	})

	return vm.ToValue(fs)
}