[RSpec] stub_const で定数の stub(スタブ)化
RSpec で、定数を stub(スタブ)化するには stub_const メソッドを使います。
(例)定数 FOO をスタブ化
FOO = 7 describe "stubbing FOO" do it "can stub FOO with a different value" do stub_const("FOO", 5) FOO.should eq(5) end it "restores the stubbed constant when the example completes" do FOO.should eq(7) end end |
(例)Class や Module の定数をスタブ化
module MyGem class SomeClass FOO = 7 end end module MyGem describe SomeClass do it "stubs the nested constant when it is fully qualified" do stub_const("MyGem::SomeClass::FOO", 5) SomeClass::FOO.should eq(5) end end end |
[参考]:Stub Defined Constant – Stubbing constants – RSpec Mocks – RSpec – Relish