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tag: v2.8.0.rc2
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Feature: stub with a simple return value
Use the `stub` method on a test double or a real object to tell the object to
return a value (or values) in response to a given message. Nothing happens if
the message is never received.
Scenario: stub with no return value
Given a file named "example_spec.rb" with:
"""
describe "a stub with no return value specified" do
let(:collaborator) { double("collaborator") }
it "returns nil" do
collaborator.stub(:message)
collaborator.message.should be(nil)
end
end
"""
When I run `rspec example_spec.rb`
Then the examples should all pass
Scenario: stubs with return values
Given a file named "example_spec.rb" with:
"""
describe "a stub with a return value" do
context "specified in a block" do
it "returns the specified value" do
collaborator = double("collaborator")
collaborator.stub(:message) { :value }
collaborator.message.should eq(:value)
end
end
context "specified with #and_return" do
it "returns the specified value" do
collaborator = double("collaborator")
collaborator.stub(:message).and_return(:value)
collaborator.message.should eq(:value)
end
end
context "specified with a hash passed to #stub" do
it "returns the specified value" do
collaborator = double("collaborator")
collaborator.stub(:message_1 => :value_1, :message_2 => :value_2)
collaborator.message_1.should eq(:value_1)
collaborator.message_2.should eq(:value_2)
end
end
context "specified with a hash passed to #double" do
it "returns the specified value" do
collaborator = double("collaborator",
:message_1 => :value_1,
:message_2 => :value_2
)
collaborator.message_1.should eq(:value_1)
collaborator.message_2.should eq(:value_2)
end
end
end
"""
When I run `rspec example_spec.rb`
Then the examples should all pass
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