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require 'spec_helper'
describe Bogus::CreatesFakes do
let(:fake_class) { stub }
let(:fake_instance) { stub }
let(:converts_name_to_class) { stub }
let(:copies_classes) { stub }
let(:makes_ducks) { stub }
let(:creates_fakes) { isolate(Bogus::CreatesFakes) }
module Foo
end
module Bar
end
before { stub(fake_class).__create__{fake_instance} }
context "without block" do
before do
mock(converts_name_to_class).convert(:foo) { Foo }
mock(copies_classes).copy(Foo) { fake_class }
end
it "creates a new instance of copied class by default" do
expect(creates_fakes.create(:foo)).to eq fake_instance
end
it "creates a new instance of copied class if called with as: :instance" do
expect(creates_fakes.create(:foo, as: :instance)).to eq fake_instance
end
it "copies class but does not create an instance if called with as: :class" do
expect(creates_fakes.create(:foo, as: :class)).to eq fake_class
end
it "raises an error if the as mode is not known" do
expect do
creates_fakes.create(:foo, as: :something)
end.to raise_error(Bogus::CreatesFakes::UnknownMode)
end
end
context "with block" do
before do
stub(converts_name_to_class).convert
mock(copies_classes).copy(Bar) { fake_class }
end
it "uses the class provided" do
expect(creates_fakes.create(:foo){Bar}).to eq fake_instance
end
it "does not convert the class name" do
creates_fakes.create(:foo) { Bar}
expect(copies_classes).to_not have_received.convert
end
end
module FooBarDuck
end
context "with multiple classes" do
it "creates a duck type out of those classes and fakes it" do
stub(makes_ducks).make(Foo, Bar) { FooBarDuck }
stub(copies_classes).copy(FooBarDuck) { :the_fake }
fake = creates_fakes.create(:role, as: :class) { [Foo, Bar] }
expect(fake).to eq :the_fake
end
end
end
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