module AE::Expect
Expect
¶ ↑
"When love and skill work together, expect a masterpiece." --John Ruskin (1819 - 1900)
Public Instance Methods
expect(*args, &block)
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The expect
method is a convenient tool for defining certain sets of expectations in your specifications.
Expect
is used to expect a result from a block of code. If the argument to expect is a subclass of Exception
or instance thereof, then the block is monitored for the raising of such an exception.
expect StandardError do raise ArgumentError end
All other expectations are compared using case equality (===). This allows one to verify matching Regexp.
expect /x/ do "x" end
As well as checking that an object is an instance of a given Class.
expect String do "x" end
Like assert it can be used to designate an expectation via a functor.
4.expect == 3
# File lib/ae/expect.rb, line 41 def expect(*args, &block) Assertor.new(self, :backtrace=>caller).expect(*args, &block) end
expect!(*args, &block)
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Designate a negated expectation. Read this as “expect not”.
See expect
.
# File lib/ae/expect.rb, line 49 def expect!(*args, &block) Assertor.new(self, :backtrace=>caller).not.expect(*args, &block) end
Also aliased as: forbid
expected(*args, &block)
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Like expect
but uses the reciever as the object of expectation.
@example
/x/.expected do "oooxooo" end
# File lib/ae/expect.rb, line 64 def expected(*args, &block) expect(self, *args, &block) end