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require_relative '../../spec_helper'
require_relative 'fixtures/common'
require_relative 'shared/new'
describe "Exception.exception" do
it_behaves_like :exception_new, :exception
end
describe "Exception#exception" do
it "returns self when passed no argument" do
e = RuntimeError.new
e.should == e.exception
end
it "returns self when passed self as an argument" do
e = RuntimeError.new
e.should == e.exception(e)
end
it "returns an exception of the same class as self with the message given as argument" do
e = RuntimeError.new
e2 = e.exception("message")
e2.should be_an_instance_of(RuntimeError)
e2.message.should == "message"
end
it "when raised will be rescued as the new exception" do
begin
begin
raised_first = StandardError.new('first')
raise raised_first
rescue => caught_first
raised_second = raised_first.exception('second')
raise raised_second
end
rescue => caught_second
end
raised_first.should == caught_first
raised_second.should == caught_second
end
it "captures an exception into $!" do
exception = begin
raise
rescue RuntimeError
$!
end
exception.class.should == RuntimeError
exception.message.should == ""
exception.backtrace.first.should =~ /exception_spec/
end
class CustomArgumentError < StandardError
attr_reader :val
def initialize(val)
@val = val
end
end
it "returns an exception of the same class as self with the message given as argument, but without reinitializing" do
e = CustomArgumentError.new(:boom)
e2 = e.exception("message")
e2.should be_an_instance_of(CustomArgumentError)
e2.val.should == :boom
e2.message.should == "message"
end
end
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