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describe "Kernel#retryable" do it "should not affect the return value of the block given" do retryable { 'foo' }.should == 'foo' end it "should not affect the return value of the block given when there is a retry" do num_calls = 0 ret_val = retryable_deluxe do num_calls += 1 raise Exception if num_calls == 1 # Raise error only the 1st time. 'foo' end num_calls.should == 2 ret_val.should == 'foo' end it "uses default options of :tries => 1 and :on => Exception when none is given" do num_calls = 0 lambda { retryable do num_calls += 1 raise Exception end }.should raise_error(Exception) num_calls.should == 2 end it "does not retry if none of the retry conditions occur" do num_calls = 0 retryable { num_calls += 1 } num_calls.should == 1 end it "uses retries :tries times when the exception to retry on occurs every time" do num_calls = 0 lambda { retryable(:tries => 3, :on => StandardError) do num_calls += 1 raise StandardError end }.should raise_error(StandardError) num_calls.should == 4 end it "should respect exception hierarchies (i.e. catch any subclass exceptions)" do num_calls = 0 lambda { retryable(:on => StandardError) do num_calls += 1 raise IOError if num_calls == 1 # Raise error only the 1st time. end }.should_not raise_error(IOError) num_calls.should == 2 end end

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