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Contents
Feature: as_null_object
Use the `as_null_object` method to ignore any messages that aren't explicitly
set as stubs or message expectations.
EXCEPTION: `to_ary` will raise a NoMethodError unless explicitly stubbed in
order to support `flatten` on an Array containing a double.
Scenario: double acting as_null_object
Given a file named "as_null_object_spec.rb" with:
"""ruby
describe "a double with as_null_object called" do
let(:null_object) { double('null object').as_null_object }
it "responds to any method that is not defined" do
null_object.should respond_to(:an_undefined_method)
end
it "allows explicit stubs" do
null_object.stub(:foo) { "bar" }
null_object.foo.should eq("bar")
end
it "allows explicit expectations" do
null_object.should_receive(:something)
null_object.something
end
it "supports Array#flatten" do
[null_object].flatten.should eq([null_object])
end
end
"""
When I run `rspec as_null_object_spec.rb`
Then the examples should all pass
Version data entries
13 entries across 13 versions & 6 rubygems