Replace Temp with Chain

You are using a temporary variable to hold the result of an expression

Change the methods to support chaining, thus removing the need for a temp.

mock = Mock.new
expectation = mock.expects(:a_method_name)
expectation.with("arguments")
expectation.returns([1, :array]) 
  

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mock = Mock.new
mock.expects(:a_method_name).with("arguments").returns([1, :array])