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config_spec.rb
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config_spec.rb
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require 'sham/config'
describe Sham::Config do
let(:parent) do
Object.send(:remove_const, :Parent) if defined?(Parent)
class Parent; end
Parent
end
let(:child) do
Object.send(:remove_const, :Child) if defined?(Child)
class Child < parent; end
Child
end
context '#activate!' do
it 'activates shams in the root directory' do
begin
expect {
described_class.activate!('spec/root')
}.to change{ defined?(Employee) }.from(nil).to('constant')
ensure
Object.send(:remove_const, :Employee) rescue nil
end
end
end
context '#config' do
it 'extends the class with Sham::Shammable' do
expect { Sham.config(parent) } \
.to change{ (class << parent; self; end).include?(Sham::Shammable) } \
.from(false).to(true)
end
it 'only extends with Sham::Shammable once' do
Sham.config(parent)
parent.should_receive(:extend).never
Sham.config(parent, :alternate)
end
it 'defines sham! on the class' do
expect { Sham.config(parent) } \
.to change{ parent.respond_to?(:sham!) }.from(false).to(true)
end
it 'defines sham_alternate! on the class' do
expect { Sham.config(parent) } \
.to change{ parent.respond_to?(:sham_alternate!) } \
.from(false).to(true)
end
end
context 'configured sham' do
it 'should be individual to every class' do
class A; end
class B; end
a = { :attribute => 'a' }
b = { :attribute => 'b' }
Sham.config(A){ |c| c.attributes{ a } }
Sham.config(B){ |c| c.attributes{ b } }
A.should_receive(:new).with(a)
B.should_receive(:new).with(b)
A.sham!
B.sham!
end
it 'carries over to subclasses' do
Sham.config(parent)
child.should respond_to(:sham!)
end
it 'allows subclasses to define their own' do
Sham.config(parent){ |c| c.empty }
Sham.config(child){ |c| c.empty }
parent.sham_config(:default) \
.should_not == child.sham_config(:default)
end
it 'defaults to calling #new when #create is not present' do
Sham.config(parent){ |c| c.empty }
parent.should_receive(:new).once
parent.sham!
end
it 'allows shams to be built instead of created' do
Sham.config(parent){ |c| c.empty }
parent.should_receive(:create).never
parent.should_receive(:new).once
parent.sham!(:build)
end
it 'creates shams by default' do
Sham.config(parent){ |c| c.empty }
parent.stub(:create)
parent.should_receive(:create).once
parent.sham!
end
context 'alternative shams' do
let(:other){ { :id => 1 } }
before do
Sham.config(parent){ |c| c.empty }
Sham.config(parent, :other){ |c| c.attributes{ other } }
end
it 'builds them' do
parent.should_receive(:new).with(other)
parent.sham!(:build, :other)
end
it 'creates them' do
parent.should_receive(:create).with(other)
parent.sham!(:other)
end
end
context 'nested shams' do
before do
parent.stub(:create)
Sham.config(parent) do |c|
c.attributes do
{ :child => Sham::Nested.new(child) }
end
end
end
it 'calls them' do
child.should_receive(:sham!)
parent.sham!
end
it 'prefers passed options' do
other_child = stub
parent.should_receive(:create).with({ :child => other_child })
parent.sham!(:child => other_child)
end
end
end
it 'configures assign shams' do
Sham.config(parent) do |c|
c.assign{ { :first => 'first' } }
end
instance = stub
parent.stub(:new){ instance }
instance.should_receive(:public_send).with('first=', 'first')
parent.sham!.should == instance
end
it 'configures attribute shams' do
attributes = { :first => 'first', :last => 'last' }
Sham.config(parent) do |c|
c.attributes{ attributes }
end
parent.should_receive(:new).with(attributes)
parent.sham!
end
it 'configures empty shams' do
Sham.config(parent){ |c| c.empty }
parent.should_receive(:new).with({})
parent.sham!
end
it 'configures no arg shams' do
Sham.config(parent){ |c| c.no_args }
parent.should_receive(:new).with()
parent.sham!
end
it 'configures parameter shams' do
parameters = [:first, :second]
Sham.config(parent) do |c|
c.parameters{ parameters }
end
parent.should_receive(:new).with(*parameters)
parent.sham!
end
end