From: Martin Hansen <mail@...>
Date: 2010-05-12T23:11:49+09:00
Subject: Re: Unit Test of method calling system() - how?

Aha! Great!

This seems to work great:

 test "Options.parse with --help in argv and existing wiki output long 
usage" do
     opt_parser = Options.new
     opt_parser.expects(:print_usage_and_exit).with(true)
     assert_nil( opt_parser.parse(["--help"],SCRIPT_PATH) )
 end

(Probably the assertion should be something more sane)


Thanks Brian, much appreciated!



Martin


Brian Candler wrote:
> he error is pretty clear when you break it down.
> 
>>  optparse_swapcase_seq_test.rb:183:in `block in <class:OptionTest>']:
>> unexpected invocation: #<Options:0x100953a70>.print_usage_and_exit(true)
> 
> "You called print_usage_and_exit(true), and I wasn't expecting that"
> 
>> unsatisfied expectations:
>> - expected exactly once, not yet invoked: 
>> #<Options:0x100953a70>.print_usage_and_exit(:full)
> 
> "I was expecting you to call print_usage_and_exit(:full), and you never 
> did"
> 
> So the expectation you set (that the method would be called with 
> argument ':full') doesn't match the reality (that your code calls the 
> method with argument 'true')

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