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therubyrhino/spec/rhino/ruby_spec.rb

414 lines
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Ruby

require File.expand_path('../spec_helper', File.dirname(__FILE__))
shared_examples_for Rhino::Ruby::Scriptable, :shared => true do
it "puts, gets and has a read/write attr" do
start = mock('start')
start.expects(:put).never
@wrapper.unwrap.instance_eval do
def foo; @foo; end
def foo=(foo); @foo = foo; end
end
@wrapper.put('foo', start, 42)
@wrapper.has('foo', nil).should == true
@wrapper.get('foo', nil).should == 42
@wrapper.unwrap.instance_variable_get(:'@foo').should == 42
end
it "puts, gets and has a write only attr" do
start = mock('start')
start.expects(:put).never
@wrapper.unwrap.instance_eval do
def foo=(foo); @foo = foo; end
end
@wrapper.put('foo', start, 42)
@wrapper.has('foo', nil).should == true
@wrapper.get('foo', nil).should be(nil)
@wrapper.unwrap.instance_variable_get(:'@foo').should == 42
end
it "puts, gets and has gets delegated if it acts like a Hash" do
start = mock('start')
start.expects(:put).never
@wrapper.unwrap.instance_eval do
def [](name); (@hash ||= {})[name]; end
def []=(name, value); (@hash ||= {})[name] = value; end
end
@wrapper.put('foo', start, 42)
@wrapper.has('foo', nil).should == true
@wrapper.get('foo', nil).should == 42
@wrapper.unwrap.instance_variable_get(:'@hash')['foo'].should == 42
end
it "puts, gets and has non-existing property" do
start = mock('start')
start.expects(:put).once
@wrapper.put('foo', start, 42)
@wrapper.has('foo', nil).should == false
@wrapper.get('foo', nil).should be(Rhino::JS::Scriptable::NOT_FOUND)
end
end
describe Rhino::Ruby::Object do
before do
@wrapper = Rhino::Ruby::Object.wrap @object = Object.new
end
it "unwraps a ruby object" do
@wrapper.unwrap.should be(@object)
end
it_should_behave_like Rhino::Ruby::Scriptable
class UII < Object
attr_reader :reader
attr_writer :writer
def method; nil; end
end
it "returns the ruby class name" do
rb_object = Rhino::Ruby::Object.wrap UII.new
rb_object.getClassName.should == UII.name
end
it "reports being a ruby object on toString" do
rb_object = Rhino::Ruby::Object.wrap UII.new
rb_object.toString.should == '[ruby UII]'
end
it "puts a non-existent attr (delegates to start)" do
start = mock('start')
start.expects(:put).once
rb_object = Rhino::Ruby::Object.wrap UII.new
rb_object.put('nonExistingAttr', start, 42)
end
it "getIds include ruby class methods" do
rb_object = Rhino::Ruby::Object.wrap UII.new
rb_object.getIds.to_a.should include("reader")
rb_object.getIds.to_a.should include("method")
rb_object.getIds.to_a.should_not include('writer=')
rb_object.getIds.to_a.should include("writer")
end
it "getIds include ruby instance methods" do
rb_object = Rhino::Ruby::Object.wrap object = UII.new
object.instance_eval do
def foo; 'foo'; end
end
rb_object.getIds.to_a.should include('foo')
end
it "getIds include writers as attr names" do
rb_object = Rhino::Ruby::Object.wrap object = UII.new
rb_object.getIds.to_a.should include('writer')
rb_object.getIds.to_a.should_not include('writer=')
object.instance_eval do
def foo=(foo)
'foo'
end
end
rb_object.getIds.to_a.should include('foo')
rb_object.getIds.to_a.should_not include('foo=')
end
describe 'with scope' do
before do
factory = Rhino::JS::ContextFactory.new
context = nil
factory.call do |ctx|
context = ctx
@scope = context.initStandardObjects(nil, false)
end
factory.enterContext(context)
end
after do
Rhino::JS::Context.exit
end
it "sets up correct prototype" do
rb_object = Rhino::Ruby::Object.wrap UII.new, @scope
rb_object.getPrototype.should_not be(nil)
rb_object.getPrototype.should be_a(Rhino::JS::NativeObject)
end
end
it "is aliased to RubyObject" do
(!! defined? Rhino::RubyObject).should == true
Rhino::RubyObject.should be(Rhino::Ruby::Object)
end
end
describe Rhino::Ruby::Function do
before do
@wrapper = Rhino::Ruby::Function.wrap @method = Object.new.method(:to_s)
end
it "unwraps a ruby method" do
@wrapper.unwrap.should be(@method)
end
it_should_behave_like Rhino::Ruby::Scriptable
it "is callable as a function" do
rb_function = Rhino::Ruby::Function.wrap method = 'foo'.method(:to_s)
context = nil; scope = nil; this = nil; args = nil
rb_function.call(context, scope, this, args).should == 'foo'
end
it "args get converted before delegating a ruby function call" do
klass = Class.new(Object) do
def foo(array)
array.all? { |elem| elem.is_a?(String) }
end
end
rb_function = Rhino::Ruby::Function.wrap method = klass.new.method(:foo)
context = nil; scope = nil; this = nil
args = [ '1'.to_java, java.lang.String.new('2') ].to_java
args = [ Rhino::JS::NativeArray.new(args) ].to_java
rb_function.call(context, scope, this, args).should be(true)
end
it "returned value gets converted to javascript" do
klass = Class.new(Object) do
def foo
[ 42 ]
end
end
rb_function = Rhino::Ruby::Function.wrap method = klass.new.method(:foo)
context = nil; scope = nil; this = nil; args = [].to_java
rb_function.call(context, scope, this, args).should be_a(Rhino::JS::NativeArray)
end
it "slices redundant args when delegating call" do
klass = Class.new(Object) do
def foo(a1)
a1
end
end
rb_function = Rhino::Ruby::Function.wrap method = klass.new.method(:foo)
context = nil; scope = nil; this = nil
args = [ 1.to_java, 2.to_java, 3.to_java ].to_java; js_return = nil
lambda { js_return = rb_function.call(context, scope, this, args) }.should_not raise_error
js_return.should == 1
end
it "fills missing args when delegating call" do
klass = Class.new(Object) do
def foo(a1, a2)
[ a1, a2 ]
end
end
rb_function = Rhino::Ruby::Function.wrap klass.new.method(:foo)
context = nil; scope = nil; this = nil
args = [ 1.to_java ].to_java; js_return = nil
lambda { js_return = rb_function.call(context, scope, this, args) }.should_not raise_error
js_return.toArray.to_a.should == [ 1, nil ]
args = [ ].to_java; js_return = nil
lambda { js_return = rb_function.call(context, scope, this, args) }.should_not raise_error
js_return.toArray.to_a.should == [ nil, nil ]
end
it "fills missing args when delegating call that ends with varargs" do
klass = Class.new(Object) do
def foo(a1, a2, *args)
[ a1, a2, args ].flatten
end
end
rb_function = Rhino::Ruby::Function.wrap klass.new.method(:foo)
context = nil; scope = nil; this = nil
args = [ ].to_java; js_return = nil
lambda { js_return = rb_function.call(context, scope, this, args) }.should_not raise_error
js_return.toArray.to_a.should == [ nil, nil ]
args = [ 1.to_java ].to_java; js_return = nil
lambda { js_return = rb_function.call(context, scope, this, args) }.should_not raise_error
js_return.toArray.to_a.should == [ 1, nil ]
args = [ 1.to_java, 2.to_java ].to_java; js_return = nil
lambda { js_return = rb_function.call(context, scope, this, args) }.should_not raise_error
js_return.toArray.to_a.should == [ 1, 2 ]
args = [ 1.to_java, 2.to_java, 3.to_java ].to_java; js_return = nil
lambda { js_return = rb_function.call(context, scope, this, args) }.should_not raise_error
js_return.toArray.to_a.should == [ 1, 2, 3 ]
end
it "returns correct arity and length" do
klass = Class.new(Object) do
def foo(a1, a2)
a1 || a2
end
end
rb_function = Rhino::Ruby::Function.wrap klass.new.method(:foo)
rb_function.getArity.should == 2
rb_function.getLength.should == 2
end
it "reports arity and length of 0 for varargs only method" do
klass = Class.new(Object) do
def foo(*args); args; end
end
rb_function = Rhino::Ruby::Function.wrap klass.new.method(:foo)
rb_function.getArity.should == 0
rb_function.getLength.should == 0
end
it "reports correct arity and length for ending varargs" do
klass = Class.new(Object) do
def foo(a1, *args); [ a1, args ]; end
end
rb_function = Rhino::Ruby::Function.wrap klass.new.method(:foo)
rb_function.getArity.should == 1
rb_function.getLength.should == 1
end
describe 'with scope' do
before do
factory = Rhino::JS::ContextFactory.new
context = nil
factory.call do |ctx|
context = ctx
@scope = context.initStandardObjects(nil, false)
end
factory.enterContext(context)
end
after do
Rhino::JS::Context.exit
end
it "sets up correct prototype" do
rb_function = Rhino::Ruby::Function.wrap 'foo'.method(:concat), @scope
rb_function.getPrototype.should_not be(nil)
rb_function.getPrototype.should be_a(Rhino::JS::Function)
end
end
it "is aliased to RubyFunction" do
(!! defined? Rhino::RubyFunction).should == true
Rhino::RubyFunction.should be(Rhino::Ruby::Function)
end
end
describe Rhino::Ruby::Constructor do
before do
@wrapper = Rhino::Ruby::Constructor.wrap @class = Class.new(Object)
end
it "unwraps a ruby method" do
@wrapper.unwrap.should be(@class)
end
it_should_behave_like Rhino::Ruby::Scriptable
class Foo < Object
end
it "is callable as a function" do
rb_new = Rhino::Ruby::Constructor.wrap Foo
context = nil; scope = nil; this = nil; args = nil
rb_new.call(context, scope, this, args).should be_a(Rhino::Ruby::Object)
rb_new.call(context, scope, this, args).unwrap.should be_a(Foo)
end
it "returns correct arity and length" do
rb_new = Rhino::Ruby::Constructor.wrap Foo
rb_new.getArity.should == 0
rb_new.getLength.should == 0
end
it "reports arity and length of 0 for varargs" do
klass = Class.new do
def initialize(*args); args; end
end
rb_new = Rhino::Ruby::Constructor.wrap klass
rb_new.getArity.should == 0
rb_new.getLength.should == 0
end
describe 'with scope' do
before do
factory = Rhino::JS::ContextFactory.new
context = nil
factory.call do |ctx|
context = ctx
@scope = context.initStandardObjects(nil, false)
end
factory.enterContext(context)
end
after do
Rhino::JS::Context.exit
end
it "has a function prototype" do
rb_function = Rhino::Ruby::Function.wrap 'foo'.method(:concat), @scope
rb_function.getPrototype.should_not be(nil)
rb_function.getPrototype.should be_a(Rhino::JS::Function)
end
end
it "is aliased to RubyConstructor" do
(!! defined? Rhino::RubyConstructor).should == true
Rhino::RubyConstructor.should be(Rhino::Ruby::Constructor)
end
end
describe Rhino::Ruby::Exception do
it 'outcomes as ruby errors in function calls' do
klass = Class.new(Object) do
def foo(arg)
raise TypeError, "don't foo me with #{arg}" unless arg.is_a?(String)
end
end
rb_function = Rhino::Ruby::Function.wrap klass.new.method(:foo)
context = nil; scope = nil; this = nil; args = [ 42.to_java ].to_java
begin
rb_function.call(context, scope, this, args)
rescue java.lang.Exception => e
e.should be_a(Rhino::Ruby::Exception)
e.getValue.should be_a(Rhino::Ruby::Object)
e.value.unwrap.should be_a(TypeError)
e.value.unwrap.message == "don't foo me with 42"
else
fail "#{Rhino::Ruby::Exception} expected to be raised"
end
end
end