如何在Coffeescript Mocha Test中检查类继承？

Question

如何在Coffeescript的摩卡规范中检查对象的类？

我尝试了以下方法：

# foo.coffee
class Foo
module.exports = new Foo()

# foo_spec.coffee
should  = require 'should'
{ Foo } = require 'foo'
foo = new Foo
foo.should.be.an.instanceOf(Foo)

但是，我收到ReferenceError Foo is not defined

Answer 1

我认为这是最简单的方法：

# foo.coffee
class Foo
module.exports = new Foo()
module.exports.Foo = Foo # IMPORTANT, exports the actual class Foo


# foo_spec.coffee
should  = require 'should'
{ Foo } = require 'foo' # Requires said class Foo
foo = new Foo
foo.should.be.an.instanceOf(Foo)