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require 'spec_helper'
module RSpec
module Mocks
describe "stub implementation" do
describe "with no args" do
it "execs the block when called" do
obj = double()
obj.stub(:foo) { :bar }
expect(obj.foo).to eq :bar
end
end
describe "with one arg" do
it "execs the block with that arg when called" do
obj = double()
obj.stub(:foo) {|given| given}
expect(obj.foo(:bar)).to eq :bar
end
end
describe "with variable args" do
it "execs the block when called" do
obj = double()
obj.stub(:foo) {|*given| given.first}
expect(obj.foo(:bar)).to eq :bar
end
end
end
describe "unstub implementation" do
it "replaces the stubbed method with the original method" do
obj = Object.new
def obj.foo; :original; end
obj.stub(:foo)
obj.unstub(:foo)
expect(obj.foo).to eq :original
end
it "removes all stubs with the supplied method name" do
obj = Object.new
def obj.foo; :original; end
obj.stub(:foo).with(1)
obj.stub(:foo).with(2)
obj.unstub(:foo)
expect(obj.foo).to eq :original
end
it "does not remove any expectations with the same method name" do
obj = Object.new
def obj.foo; :original; end
obj.should_receive(:foo).with(3).and_return(:three)
obj.stub(:foo).with(1)
obj.stub(:foo).with(2)
obj.unstub(:foo)
expect(obj.foo(3)).to eq :three
end
it "restores the correct implementations when stubbed and unstubbed on a parent and child class" do
parent = Class.new
child = Class.new(parent)
parent.stub(:new)
child.stub(:new)
parent.unstub(:new)
child.unstub(:new)
expect(parent.new).to be_an_instance_of parent
expect(child.new).to be_an_instance_of child
end
it "raises a MockExpectationError if the method has not been stubbed" do
obj = Object.new
expect {
obj.unstub(:foo)
}.to raise_error(RSpec::Mocks::MockExpectationError)
end
end
end
end
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