shard-spectator/spec/docs/null_objects_spec.cr

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require "../spec_helper"
# https://gitlab.com/arctic-fox/spectator/-/wikis/Null-Objects
Spectator.describe "Null Objects Docs" do
double :my_double
it "returns itself for undefined methods" do
dbl = double(:my_double).as_null_object
expect(dbl.some_undefined_method).to be(dbl)
end
it "can be used to chain methods" do
dbl = double(:my_double).as_null_object
expect(dbl.foo.bar.baz).to be(dbl)
end
end