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require 'mspec/utils/deprecate'
class RaiseErrorMatcher
def initialize(exception, message, &block)
@exception = Array(exception)
@message = message
@block = block
end
def matches?(proc)
@result = proc.call
return false
rescue Exception => @actual
if matching_exception?(@actual)
return true
else
raise @actual
end
end
def matching_exception?(exc)
return false unless @exception.any? {|exception_class| exception_class === exc}
if @message then
case @message
when String
return false if @message != exc.message
when Regexp
return false if @message !~ exc.message
end
end
# The block has its own expectations and will throw an exception if it fails
@block[exc] if @block
return true
end
def exception_class_and_message(exception_class, message)
if Array === exception_class and exception_class.size == 1
exception_class = exception_class[0]
end
if message
"#{exception_class} (#{message})"
else
"#{exception_class}"
end
end
def format_expected_exception
exception_class_and_message(@exception, @message)
end
def format_exception(exception)
exception_class_and_message(exception.class, exception.message)
end
def failure_message
message = ["Expected #{format_expected_exception}"]
if @actual then
message << "but got #{format_exception(@actual)}"
else
message << "but no exception was raised (#{@result.pretty_inspect.chomp} was returned)"
end
message
end
def negative_failure_message
message = ["Expected to not get #{format_expected_exception}", ""]
unless @exception.include?(@actual.class)
message[1] = "but got #{format_exception(@actual)}"
end
message
end
end
class Object
def raise_error(exception=Exception, message=nil, &block)
RaiseErrorMatcher.new(exception, message, &block)
end
end
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