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35 lines
1.1 KiB
35 lines
1.1 KiB
module Shoulda
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class << self
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attr_accessor :expected_exceptions
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end
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module ClassMethods
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# Enables the core shoulda test suite to test for failure scenarios. For
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# example, to ensure that a set of test macros should fail, do this:
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#
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# should_fail do
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# should_validate_presence_of :comments
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# should_not_allow_mass_assignment_of :name
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# end
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def should_fail(&block)
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context "should fail when trying to run:" do
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Shoulda.expected_exceptions = [Test::Unit::AssertionFailedError]
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yield block
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Shoulda.expected_exceptions = nil
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end
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end
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end
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class Context
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# alias_method_chain hack to allow the should_fail macro to work
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def should_with_failure_scenario(name, options = {}, &block)
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if Shoulda.expected_exceptions
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expected_exceptions = Shoulda.expected_exceptions
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failure_block = lambda { assert_raise(*expected_exceptions, &block.bind(self)) }
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end
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should_without_failure_scenario(name, options, &(failure_block || block))
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end
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alias_method_chain :should, :failure_scenario
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end
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end
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