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therubyracer/spec/v8/context_spec.rb
Charles Lowell 7fc1ebd612 enable calling JS code from Ruby
turns out that this "just worked" (exception handling still remains
un-implemented)
2015-07-31 15:10:18 +03:00

1037 lines
33 KiB
Ruby

# -*- encoding: utf-8 -*-
require 'spec_helper'
describe "V8::Context" do
describe "Basic Evaluation", :compat => '0.1.0' do
before do
@cxt = V8::Context.new
end
it "can evaluate some javascript" do
@cxt.eval("5 + 3").should == 8
end
it "can pass back null to ruby" do
@cxt.eval("null").should be_nil
end
it "can pass back undefined to ruby" do
@cxt.eval("this.undefined").should be_nil
end
it "can pass the empty string back to ruby" do
@cxt.eval("''").should == ""
end
it "can pass doubles back to ruby" do
@cxt.eval("2.5").should == 2.5
end
it "can pass fixed numbers back to ruby" do
@cxt.eval("1").should == 1
end
it "can pass boolean values back to ruby" do
@cxt.eval("true").should be(true)
@cxt.eval("false").should be(false)
end
it "treats nil and the empty string as the same thing when it comes to eval" do
@cxt.eval(nil).should == @cxt.eval('')
end
it "can pass back strings to ruby" do
@cxt['foo'] = "Hello World"
@cxt.eval("foo").should == "Hello World"
end
it "can pass back very long strings to ruby" do
lorem = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Duis faucibus, diam vel pellentesque aliquet, nisl sapien molestie eros, vitae vehicula libero massa vel neque. Phasellus tempor pharetra ipsum vel venenatis. Quisque vitae nisl vitae quam mattis pellentesque et in sapien. Sed at lectus quis eros pharetra feugiat non ac neque. Vivamus lacus eros, feugiat at volutpat at, viverra id nisl. Vivamus ac dolor eleifend libero venenatis pharetra ut iaculis arcu. Donec neque nibh, vehicula non porta a, consectetur eu erat. Sed eleifend, metus vel euismod placerat, lectus lectus sollicitudin nisl, ac elementum sem quam nec dolor. In hac habitasse platea dictumst. Proin vitae suscipit orci. Suspendisse a ipsum vel lorem tempus scelerisque et vitae neque. Proin sodales, tellus sit amet consequat cursus, odio massa ultricies enim, eu fermentum velit lectus in lacus. Quisque eu porttitor diam. Nunc felis purus, facilisis non tristique ac, pulvinar nec nulla. Duis dolor risus, egestas nec tristique ac, ullamcorper cras amet."
@cxt.eval("'#{lorem}'").should == lorem
end
it "correctly handles translating strings that have non-standard characters" do
@cxt['utf8'] = "Σὲ γνωρίζω ἀπὸ τὴν κόψη"
@cxt['utf8'].should == "Σὲ γνωρίζω ἀπὸ τὴν κόψη"
@cxt.eval('var nativeUtf8 = "Σὲ γνωρίζω ἀπὸ τὴν κόψη"')
@cxt['nativeUtf8'].should == "Σὲ γνωρίζω ἀπὸ τὴν κόψη"
end
it "translates JavaScript dates objects" do
now = Time.now
@cxt.eval('new Date()').tap do |time|
expect(time.getDate().to_i).to eql now.day
expect(time.getFullYear().to_i).to eql now.year
expect(time.getMonth().to_i).to eql now.month - 1
expect(time.getMinutes().to_i).to eql now.min
expect(time.getSeconds().to_i).to eql now.sec
end
end
it "can pass objects back to ruby" do
@cxt.eval("({foo: 'bar', baz: 'bang', '5': 5, embedded: {badda: 'bing'}})").tap do |object|
object.should_not be_nil
object['foo'].should == 'bar'
object['baz'].should == 'bang'
object['5'].should == 5
object['embedded'].tap do |embedded|
embedded.should_not be_nil
embedded['badda'].should == 'bing'
end
end
end
it "can pass int properties to ruby", :compat => '0.2.1' do
@cxt.eval("({ 4: '4', 5: 5, '6': true })").tap do |object|
object[ 4 ].should == '4'
object['4'].should == '4'
object[ 5 ].should == 5
object['5'].should == 5
object['6'].should == true
end
end
# xit "unwraps ruby objects returned by embedded ruby code to maintain referential integrity" do
# Object.new.tap do |o|
# @cxt['get'] = lambda {o}
# @cxt.eval('get()').should be(o)
# end
# end
it "always returns the same ruby object for a single javascript object" do
obj = @cxt.eval('obj = {}')
obj.should be(@cxt['obj'])
@cxt.eval('obj').should be(@cxt['obj'])
@cxt['obj'].should be(@cxt['obj'])
end
# xit "converts arrays to javascript" do
# @cxt['a'] = [1,2,4]
# @cxt.eval('var sum = 0;for (var i = 0; i < a.length; i++) {sum += a[i]}; sum').should == 7
# @cxt.eval('[1,2,3]').tap do |a|
# a.length.should == 3
# a.to_a.should == [1,2,3]
# end
# end
# xit "can iterate over arrays" do
# @cxt['a'] = @cxt.eval('[{num: 1},{num:2},{num:3},{num: 4}]')
# a = @cxt['a']
# a.inject(0) do |sum, item|
# sum + item['num']
# end.should == 10
# end
# xit "converts ruby hashes to javascript objects" do
# @cxt['h'] = {:foo => 'bar', :baz => 'bang', :bar => {'hello' => 'world'}}
# @cxt['h']['foo'].should == 'bar'
# @cxt['h']['baz'].should == 'bang'
# @cxt['h']['bar']['hello'].should == 'world'
# end
end
# describe "Calling Ruby Code From Within Javascript", :compat => '0.1.0' do
# before(:each) do
# @class = Class.new
# @instance = @class.new
# @cxt = V8::Context.new
# @cxt['o'] = @instance
# end
# xit "can embed a closure into a context and call it" do
# @cxt["say"] = lambda { |*args| args[-2] * args[-1] }
# @cxt.eval("say('Hello', 2)").should == "HelloHello"
# end
# xit "recognizes the same closure embedded into the same context as the same function object" do
# @cxt['say'] = @cxt['declare'] = lambda { |*args| args }
# @cxt.eval('say == declare').should be(true)
# @cxt.eval('say === declare').should be(true)
# end
# xit "translates ruby Array to Javascript Array" do
# class_eval do
# def ruby_array
# []
# end
# end
# evaljs('o.ruby_array instanceof Array').should == true
# end
# xit "translates ruby Time to Javascript Date" do
# now = Time.now
# class_eval do
# def ruby_time
# @now
# end
# end
# @instance.instance_variable_set(:@now, now)
# evaljs('o.ruby_time instanceof Date').should == true
# evaljs('o.ruby_time.getFullYear()').should == now.year
# evaljs('o.ruby_time.getMonth() + 1').should == now.month
# evaljs('o.ruby_time.getDate()').should == now.day
# evaljs('o.ruby_time.getMinutes()').should == now.min
# evaljs('o.ruby_time.getSeconds()').should == now.sec
# end
# xit "translates ruby true to Javascript true" do
# class_eval do
# def bool
# true
# end
# end
# evaljs('o.bool === true').should == true
# end
# xit "translates ruby false to Javascript false" do
# class_eval do
# def bool
# false
# end
# end
# evaljs('o.bool === false').should == true
# end
# xit "can embed a ruby object into a context and call its methods" do
# class_eval do
# def say_hello(to)
# "Hello #{to}!"
# end
# end
# evaljs('o.say_hello("Gracie")').should == "Hello Gracie!"
# end
# xit "recognizes object method as the same function" do
# @class.class_eval do
# def foo(*args); args; end
# end
# @cxt['obj'] = @class.new
# @cxt.eval('obj.foo === obj.foo').should be(true)
# end
# xit "recognizes functions on objects of the same class being equal", :compat => '0.2.0' do
# @class.class_eval do
# def foo(*args); args; end
# self
# end
# @cxt['one'] = @class.new
# @cxt['two'] = @class.new
# @cxt.eval('one.foo == two.foo').should be(true)
# end
# xit "recognizes functions on objects of the same class being the same", :compat => '0.2.1' do
# @class.class_eval do
# def foo(*args); args; end
# self
# end
# @cxt['one'] = @class.new
# @cxt['two'] = @class.new
# @cxt.eval('one.foo === two.foo').should be(true)
# #TODO: nice to have, but a bit tricky.
# # @cxt.eval('one.foo === one.constructor.prototype.foo').should be(true)
# end
# xit "fails without the correct context passed to an object function", :compat => '0.2.0' do
# @class.class_eval do
# def foo(*args); args; end
# end
# @cxt['obj'] = @class.new
# @cxt.eval('var foo = obj.foo;')
# lambda { @cxt.eval('foo()') }.should raise_error
# end
# xit "can call a bound ruby method" do
# five = class_eval do
# def initialize(lhs)
# @lhs = lhs
# end
# def times(rhs)
# @lhs * rhs
# end
# new(5)
# end
# @cxt['timesfive'] = five.method(:times)
# @cxt.eval('timesfive(3)').should == 15
# end
# xit "reports object's type being object", :compat => '0.1.1' do
# @cxt.eval('typeof( o )').should == 'object'
# end
# xit "reports object method type as function", :compat => '0.1.1' do
# @class.class_eval do
# def foo(*args); args; end
# end
# @cxt.eval('typeof o.foo ').should == 'function'
# end
# xit "reports wrapped class as of type function", :compat => '0.1.1' do
# @cxt['RObject'] = Object
# @cxt.eval('typeof(RObject)').should == 'function'
# end
# xit "truncates lambda arguments passed in to match the arity of the function", :compat => '0.4.2' do
# @cxt['testing'] = lambda { |arg| arg }
# lambda {
# @cxt.eval('testing(1,2,3)')
# }.should_not raise_error
# @cxt['testing'] = lambda { }
# lambda {
# @cxt.eval('testing(1,2,3)')
# }.should_not raise_error
# end
# xit "truncates method arguments passed in to match the arity of the function", :compat => '0.4.3' do
# @instance.instance_eval do
# def foo(arg); arg; end
# def bar(*args); args; end
# end
# lambda {
# @cxt.eval('o.foo(1,2,3)').should == 1
# }.should_not raise_error
# lambda {
# @cxt.eval('o.bar(1,2,3)').to_a.should == [ 1, 2, 3 ]
# }.should_not raise_error
# end
# xit "fills in missing arguments with nils to match the arity of the function", :compat => '0.4.3' do
# @instance.instance_eval do
# def foo(a1, a2, a3); [a1, a2, a3]; end
# end
# lambda {
# @cxt.eval('o.foo(1)').to_a.should == [ 1, nil, nil ]
# @cxt.eval('o.foo()').to_a.should == [ nil, nil, nil ]
# }.should_not raise_error
# end
# describe "Default Ruby Object Access" do
# xit "can call public locally defined ruby methods" do
# class_eval do
# def voo(str)
# "voo#{str}"
# end
# end
# evaljs("o.voo('doo')").should == "voodoo"
# end
# xit "reports ruby methods that do not exist as undefined" do
# V8::Context.new(:with => Object.new) do |cxt|
# cxt.eval('this.foobar').should be nil
# end
# end
# xit "can access methods defined in an object's superclass" do
# o = Class.new.class_eval do
# attr_accessor :foo
# def foo
# @foo ||= "FOO"
# end
# Class.new(self)
# end.new
# V8::Context.new(:with => o) do |cxt|
# cxt.eval('this.foo').should == 'FOO'
# cxt.eval('this.foo = "bar!"')
# cxt.eval('this.foo').should == "bar!"
# end
# end
# xit "allows a ruby object to intercept property access with []" do
# Class.new.class_eval do
# def [](val)
# "FOO"
# end
# V8::Context.new(:with => new) do |cxt|
# cxt.eval('this.foo').should == "FOO"
# cxt.eval('this.bar').should == "FOO"
# end
# end
# end
# xit "allows a ruby object to intercept property setting with []=" do
# Class.new.class_eval do
# def initialize
# @properties = {}
# end
# def [](name)
# @properties[name]
# end
# def []=(name, value)
# @properties[name] = value
# end
# V8::Context.new(:with => new) do |cxt|
# cxt.eval('this.foo = "bar"').should == "bar"
# cxt.eval('this.foo').should == "bar"
# end
# end
# end
# xit "allows a ruby object which intercepts property access to take a pass on intercepting the property", :compat => '0.4.0' do
# klass = Class.new do
# def initialize
# @attrs = {}
# end
# def [](name)
# name =~ /foo/ ? @attrs[name] : yield
# end
# def []=(name, value)
# name =~ /foo/ ? @attrs[name] = "#{value}-diddly" : yield
# end
# end
# V8::Context.new do |cxt|
# cxt['foo'] = klass.new
# cxt.eval('typeof foo.bar').should == 'undefined'
# cxt.eval('foo.bar = "baz"')
# cxt.eval('foo.bar').should == 'baz'
# cxt.eval('foo.foobar').should == nil
# cxt.eval('foo.foobar = "baz"')
# cxt.eval('foo.foobar').should == "baz-diddly"
# end
# end
# xit "allows a ruby object to take a pass on intercepting an indexed property", :compat => '0.4.0' do
# klass = Class.new do
# def initialize
# @arr = []
# end
# def [](i)
# i >= 5 ? @arr[i] : yield
# end
# def []=(i, value)
# i >= 5 ? @arr[i] = "#{value}-diddly" : yield
# end
# end
# V8::Context.new do |cxt|
# cxt['obj'] = klass.new
# cxt.eval('typeof obj[1]').should == 'undefined'
# cxt.eval('obj[1] = "foo"')
# cxt.eval('obj[1]').should == "foo"
# cxt.eval('obj[5] = "foo"').should == "foo"
# cxt.eval('obj[5]').should == "foo-diddly"
# end
# end
# xit "does not make the [] and []= methods visible or enumerable by default", :compat => '0.4.1' do
# klass = Class.new do
# def [](name); name; end
# def []=(name, value); name && value; end
# end
# V8::Context.new do |cxt|
# cxt['o'] = klass.new
# cxt.eval('o["[]"]').should == nil
# cxt.eval('o["[]="]').should == nil
# cxt.eval('a = new Array(); for (var i in o) a.push(i);')
# cxt['a'].length.should == 0
# end
# end
# xit "doesn't kill the whole process if a dynamic interceptor or setter throws an exception" do
# klass = Class.new do
# def [](name)
# raise "BOOM #{name}!"
# end
# def []=(name, value)
# raise "Bam #{name} = #{value} !"
# end
# end
# V8::Context.new do |cxt|
# cxt['foo'] = klass.new
# lambda {
# cxt.eval('foo.bar')
# }.should raise_error
# lambda {
# cxt.eval('foo.bar = "baz"')
# }.should raise_error
# end
# end
# xit "doesn't kill the whole process if reader or accessor throws an exception" do
# klass = Class.new do
# def foo
# raise "NO GET 4 U!"
# end
# def foo=(val)
# raise "NO SET 4 U!"
# end
# end
# cxt = V8::Context.new(:with => klass.new)
# lambda {
# cxt.eval(this.foo)
# }.should raise_error
# lambda {
# cxt.eval("this.foo = 'bar'")
# }.should raise_error
# end
# xit "allows access to methods defined on an objects included/extended modules (class)" do
# modul = Module.new do
# attr_accessor :foo
# def foo
# @foo ||= "FOO"
# end
# end
# klass = Class.new do
# include modul
# end
# V8::Context.new(:with => klass.new) do |cxt|
# cxt.eval('this.foo').should == "FOO"
# cxt.eval('this.foo = "bar!"')
# cxt.eval('this.foo').should == "bar!"
# end
# end
# xit "allows access to methods defined on an objects included/extended modules (instance)" do
# modul = Module.new do
# attr_accessor :foo
# def foo
# @foo ||= "FOO"
# end
# self
# end
# obj = Object.new; obj.extend(modul)
# V8::Context.new(:with => obj) do |cxt|
# cxt.eval('this.foo').should == "FOO"
# cxt.eval('this.foo = "bar!"')
# cxt.eval('this.foo').should == "bar!"
# end
# end
# xit "allows access to public singleton methods" do
# obj = Object.new
# class << obj; attr_accessor :foo; end
# def obj.foo; @foo ||= "FOO"; end
# V8::Context.new(:with => obj) do |cxt|
# cxt.eval("this.foo").should == "FOO"
# cxt.eval('this.foo = "bar!"')
# cxt.eval('this.foo').should == "bar!"
# end
# end
# xit "does not allow access to methods defined on Object and above", :compat => '0.5.0' do
# klass = Class.new do
# def foo; "FOO"; end
# end
# V8::Context.new(:with => klass.new) do |cxt|
# for method in Object.public_instance_methods
# cxt.eval("this['#{method}']").should be nil
# end
# end
# end
# xit "hides methods derived from Object, Kernel, etc...", :compat => '0.5.0' do
# evaljs("o.to_s").should be nil # Object
# evaljs("o.puts").should be nil # Kernel
# end
# xit "does not allow to call a ruby constructor, unless that constructor has been directly embedded", :compat => '0.5.0' do
# klass = Class.new
# @cxt['obj'] = klass.new
# lambda {
# @cxt.eval('new (obj.constructor)()')
# }.should raise_js_error
# end
# describe "with an integer index" do
# xit "allows accessing indexed properties via the []() method" do
# class_eval do
# def [](i)
# "foo" * i
# end
# end
# evaljs("o[3]").should == "foofoofoo"
# end
# xit "allows setting indexed properties via the []=() method" do
# class_eval do
# def [](i)
# @storage ||= []
# @storage[i]
# end
# def []=(i, val)
# @storage ||= []
# @storage[i] = val
# end
# end
# evaljs("o[3] = 'three'").should == 'three'
# evaljs("o[3]").should == 'three'
# end
# xit "doesn't kill the whole process if indexed interceptors throw exceptions" do
# class_eval do
# def [](idx)
# raise "No Indexed [#{idx}] For You!"
# end
# def []=(idx, value)
# raise "No Indexed [#{idx}] = #{value} For You!"
# end
# end
# lambda {
# evaljs("o[1] = 'boo'")
# }.should raise_error
# lambda {
# evaljs("o[1]")
# }.should raise_error
# end
# #TODO: I'm not sure this is warranted
# #it "will enumerate indexed properties if a length property is provided"
# end
# end
# xit "will see a method that appears after the wrapper was first created" do
# @cxt['o'] = @instance
# class_eval do
# def whiz(str)
# "whiz#{str}!"
# end
# end
# @cxt.eval("o.whiz('bang')").should == "whizbang!"
# end
# xit "treats ruby methods that have an arity of 0 as javascript properties by default" do
# class_eval do
# def property
# "flan!"
# end
# end
# evaljs('o.property').should == 'flan!'
# end
# xit "will call ruby accesssor function when setting a property from javascript" do
# class_eval do
# def dollars
# @dollars
# end
# def dollars=(amount)
# @dollars = amount
# end
# end
# evaljs('o.dollars = 50')
# @instance.dollars.should == 50
# end
# xit "will accept expando properties by default for properties on ruby object that are not implemented in ruby" do
# evaljs('o.five = 5; o.five').should == 5
# end
# xit "it silently fails to replace properties which are defined on ruby objects but which are read-only" do
# class_eval do
# def bar
# "baz"
# end
# end
# evaljs('o.bar = "bing"; o.bar').should == "baz"
# end
# def evaljs(str)
# @cxt.eval(str)
# end
# def class_eval(&body)
# @class.class_eval &body
# end
# end
describe "Calling JavaScript Code From Within Ruby", :compat => '0.1.0' do
before(:each) do
@cxt = V8::Context.new
end
it "allows you to capture a reference to a javascript function and call it" do
f = @cxt.eval('(function add(lhs, rhs) {return lhs + rhs})')
expect(f.call 1,2).to eql 3
end
it "can path the 'this' object into a function as context with methodcall()" do
obj = @cxt.eval('({num: 5})')
times = @cxt.eval('(function times(num) {return this.num * num})')
expect(times.methodcall obj, 5).to eql 25
end
it "unwraps objects that are backed by javascript objects to pass their native equivalents" do
@cxt.eval('obj = {foo: "bar"}')
f = @cxt.eval('(function() {return this == obj})')
expect(f.methodcall @cxt['obj']).to be true
end
it "can invoke a javacript constructor and return the new object reflected into ruby" do
wrapper = @cxt.eval('(function Wrapper(value) {this.value = value})')
wrapper.new(5)['value'].should == 5
end
it "can call a javascript method directly from a ruby object" do
obj = @cxt.eval('Object').new
expect(obj).to respond_to(:toString)
expect(obj.toString()).to eql '[object Object]'
end
it "can access properties defined on a javascript object through ruby" do
obj = @cxt.eval('({ str: "bar", num: 5 })')
expect(obj.str).to eql "bar"
expect(obj.num).to eql 5
end
# xit "can set properties on the javascript object via ruby setter methods" do
# obj = @cxt.eval('({ str: "bar", num: 5 })')
# obj.str = "baz"
# obj.str.should == "baz"
# obj.double = proc {|i| i * 2}
# obj.double.call(2).should == 4
# obj.array = 1,2,3
# obj.array.to_a.should == [1,2,3]
# obj.array = [1,2,3]
# obj.array.to_a.should == [1,2,3]
# end
it "is an error to try and pass parameters to a property" do
obj = @cxt.eval('({num: 1})')
expect { obj.num(5) }.to raise_error(ArgumentError)
end
end
# describe "Setting up the Host Environment", :compat => '0.1.0' do
# before(:each) do
# @cxt = V8::Context.new
# end
# xit "can eval javascript with a given ruby object as the scope." do
# scope = Class.new.class_eval do
# def plus(lhs, rhs)
# lhs + rhs
# end
# def minus(lhs, rhs)
# lhs - rhs
# end
# new
# end
# V8::Context.new(:with => scope) do |cxt|
# cxt.eval("plus(1,2)", "test").should == 3
# cxt.eval("minus(10, 20)", "test").should == -10
# cxt.eval("this").should be(scope)
# end
# end
# xit "can directly embed ruby values into javascript" do
# @cxt["bar"] = 9
# @cxt['foo'] = "bar"
# @cxt['num'] = 3.14
# @cxt['trU'] = true
# @cxt['falls'] = false
# @cxt.eval("bar + 10").should == 19
# @cxt.eval('foo').should == "bar"
# @cxt.eval('num').should == 3.14
# @cxt.eval('trU').should be(true)
# @cxt.eval('falls').should be(false)
# end
# xit "has the global object available as a javascript value" do
# @cxt['foo'] = 'bar'
# @cxt.scope.should_not be(nil)
# @cxt.scope.should respond_to :'[]'
# @cxt.scope['foo'].should == 'bar'
# end
# xit "will treat class objects as constructors by default" do
# @cxt[:MyClass] = Class.new do
# attr_reader :one, :two
# def initialize(one, two)
# @one, @two = one, two
# end
# end
# @cxt.eval('new MyClass(1,2).one').should == 1
# @cxt.eval('new MyClass(1,2).two').should == 2
# end
# xit "exposes class properties as javascript properties on the corresponding constructor" do
# @cxt[:MyClass] = Class.new do
# def self.foo(*args)
# args.inspect
# end
# end
# @cxt.eval('MyClass.foo').should_not be nil
# @cxt.eval('MyClass.foo()').should == "[]"
# end
# xit "unwraps reflected ruby constructor objects into their underlying ruby classes" do
# @cxt['RubyObject'] = Object
# @cxt['RubyObject'].should be(Object)
# end
# xit "honors the instanceof operator for ruby instances when compared to their reflected constructors" do
# @cxt['RubyObject'] = Object
# @cxt['rb_object'] = Object.new
# @cxt.eval('rb_object instanceof RubyObject').should be(true)
# @cxt.eval('new RubyObject() instanceof RubyObject').should be(true)
# @cxt.eval('new RubyObject() instanceof Array').should be(false)
# @cxt.eval('new RubyObject() instanceof Object').should be(true)
# end
# xit "reports constructor function as being an instance of Function", :compat => '0.1.1' do
# @cxt['RubyObject'] = Object
# @cxt.eval('RubyObject instanceof Function').should be(true)
# end
# xit "respects ruby's inheritance chain with the instanceof operator", :compat => '0.1.1' do
# @cxt['Class1'] = klass1 = Class.new(Object)
# @cxt['Class2'] = klass2 = Class.new(klass1)
# @cxt['obj1'] = klass1.new
# @cxt['obj2'] = klass2.new
# @cxt.eval('obj1 instanceof Class1').should == true
# @cxt.eval('obj1 instanceof Class2').should == false
# @cxt.eval('obj2 instanceof Class2').should == true
# @cxt.eval('obj2 instanceof Class1').should == true
# end
# xit "unwraps instances created by a native constructor when passing them back to ruby" do
# @cxt['RubyClass'] = Class.new do
# def definitely_a_product_of_this_one_off_class?
# true
# end
# end
# @cxt.eval('new RubyClass()').should be_definitely_a_product_of_this_one_off_class
# end
# end
# describe "Loading javascript source into the interpreter", :compat => '0.1.0' do
# xit "can take an IO object in the eval method instead of a string" do
# source = StringIO.new(<<-EOJS)
# /*
# * we want to have a fairly verbose function so that we can be assured tha
# * we overflow the buffer size so that we see that the reader is chunking
# * it's payload in at least several fragments.
# *
# * That's why we're wasting space here
# */
# function five() {
# return 5
# }
# foo = 'bar'
# five();
# EOJS
# V8::Context.new do |cxt|
# cxt.eval(source, "StringIO").should == 5
# cxt['foo'].should == "bar"
# end
# end
# xit "can load a file into the runtime" do
# filename = Pathname(__FILE__).dirname.join("fixtures/loadme.js").to_s
# V8::Context.new.load(filename).should == "I am Legend"
# end
# end
# describe "A Javascript Object Reflected Into Ruby", :compat => '0.1.0' do
# before(:each) do
# @cxt = V8::Context.new
# @o = @cxt.eval("o = new Object(); o")
# end
# def evaljs(js)
# @cxt.eval(js)
# end
# xit "can have its properties manipulated via ruby style [] hash access" do
# @o["foo"] = 'bar'
# evaljs('o.foo').should == "bar"
# evaljs('o.blue = "blam"')
# @o["blue"].should == "blam"
# end
# xit "doesn't matter if you use a symbol or a string to set a value" do
# @o[:foo] = "bar"
# @o['foo'].should == "bar"
# @o['baz'] = "bang"
# @o[:baz].should == "bang"
# end
# xit "returns nil when the value is null, null, or not defined" do
# @o[:foo].should be_nil
# end
# xit "traverses the prototype chain when hash accessing properties from the ruby object" do
# V8::Context.new do |cxt|
# cxt.eval(<<EOJS)['bar'].should == "baz"
# function Foo() {}
# Foo.prototype.bar = 'baz'
# new Foo()
# EOJS
# end
# end
# xit "is enumenable" do
# evaljs("o.foo = 'bar'; o.bang = 'baz'; o[5] = 'flip'")
# {}.tap do |h|
# @o.each do |k,v|
# h[k] = v
# end
# h.should == {"foo" => 'bar', "bang" => 'baz', 5 => 'flip'}
# end
# end
# end
# describe "Exception Handling", :compat => '0.1.0' do
# xit "raises javascript exceptions as ruby exceptions" do
# lambda {
# V8::Context.new.eval('foo')
# }.should raise_js_error
# end
# xit "can handle syntax errors" do
# lambda {
# V8::Context.eval('does not compiles')
# }.should raise_error
# end
# xit "will allow exceptions to pass through multiple languages boundaries (i.e. js -> rb -> js -> rb)" do
# V8::Context.new do |cxt|
# cxt['one'] = lambda do
# cxt.eval('two()', 'one.js')
# end
# cxt['two'] = lambda do
# cxt.eval('three()', 'two.js')
# end
# cxt['three'] = lambda do
# cxt.eval('throw "BOOM!"', "three.js")
# end
# lambda {
# cxt['one'].call(cxt.scope)
# }.should raise_error {|e|
# #TODO: assert something about the contents of the stack?
# #--cowboyd 05/25/2010
# }
# end
# end
# xit "translates ruby exceptions into javascript exceptions if they are thrown from code called xit javascript", :compat => '0.3.0' do
# V8::Context.new do |cxt|
# cxt['boom'] = lambda { raise "BOOM!" }
# cxt.eval('( function() { try { boom() } catch (e) { return e.message } } )()').should == 'BOOM!'
# end
# end
# xit "allows javascript to catch ScriptError", :compat => '0.4.4' do
# V8::Context.new do |cxt|
# cxt['boom'] = lambda { raise ScriptError, "BOOM!" }
# cxt.eval('( function() { try { boom() } catch (e) { return e.message } } )()').should == 'BOOM!'
# end
# end
# xit "will not let JavaScript catch other errors such as a SystemExit and fatal", :compat => '0.4.4' do
# V8::Context.new do |cxt|
# cxt['boom'] = lambda { raise Exception, "ByE!" }
# expect {cxt.eval('( function() { try { boom() } catch (e) { return e.message } } )()')}.should raise_error Exception
# end
# end
# xit "propagates javascript thrown values into the ruby side", :compat => '0.4.5' do
# V8::Context.new do |cxt|
# begin
# cxt.eval('throw 42')
# rescue => e
# e.should respond_to(:value)
# e.value.should == 42
# else
# fail "not raised !"
# end
# begin
# cxt.eval("throw { foo: 'bar' }")
# rescue => e
# e.should respond_to(:value)
# e.value.should respond_to(:'[]')
# e.value['foo'].should == 'bar'
# else
# fail "not raised !"
# end
# end
# end
# xit "propagates a javascript thrown error from a function", :compat => '0.4.6' do
# context = V8::Context.new
# context.eval 'function bar() { throw new Error("bar"); }'
# begin
# context['bar'].call
# rescue Exception => e
# e.should be_a defined?(V8::Error) ? V8::Error : StandardError
# else
# fail "function bar() not raised !"
# end
# end
# xit "propagates a javascript thrown error from a constructor", :compat => '0.4.6' do
# context = V8::Context.new
# context.eval 'Foo = function() { throw new Error("Foo"); };'
# begin
# context['Foo'].new
# rescue Exception => e
# e.should be_a defined?(V8::Error) ? V8::Error : StandardError
# else
# fail "not raised !"
# end
# end
# end
# describe "A Ruby class reflected into JavaScript", :compat => '0.6.0' do
# xit "will extend instances of the class when properties are added to the corresponding JavaScript constructor's prototype" do
# klass = Class.new
# V8::Context.new do |cxt|
# cxt['RubyObject'] = klass
# cxt.eval('RubyObject.prototype.foo = function() {return "bar"}')
# cxt['o'] = klass.new
# cxt.eval('o.foo()').should == "bar"
# end
# end
# xit"will extend instances of subclasses when properties are added to the corresponding JavaScript constructor's prototype" do
# superclass = Class.new
# subclass = Class.new(superclass)
# V8::Context.new do |cxt|
# cxt['SuperClass'] = superclass
# cxt['SubClass'] = subclass
# cxt['o'] = subclass.new
# cxt.eval('SuperClass.prototype.foo = function() {return "bar"}')
# cxt.eval('o.foo()').should == "bar"
# end
# end
# end
private
def raise_js_error
defined?(V8::Error) ? raise_error(V8::Error) : raise_error
end
end