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describe :kernel_raise, shared: true do
before :each do
ScratchPad.clear
end
it "aborts execution" do
-> do
@object.raise Exception, "abort"
ScratchPad.record :no_abort
end.should raise_error(Exception, "abort")
ScratchPad.recorded.should be_nil
end
it "raises RuntimeError if no exception class is given" do
-> { @object.raise }.should raise_error(RuntimeError, "")
end
it "raises a given Exception instance" do
error = RuntimeError.new
-> { @object.raise(error) }.should raise_error(error)
end
it "raises a RuntimeError if string given" do
-> { @object.raise("a bad thing") }.should raise_error(RuntimeError)
end
it "passes no arguments to the constructor when given only an exception class" do
klass = Class.new(Exception) do
def initialize
end
end
-> { @object.raise(klass) }.should raise_error(klass) { |e| e.message.should == klass.to_s }
end
it "raises a TypeError when passed a non-Exception object" do
-> { @object.raise(Object.new) }.should raise_error(TypeError)
end
it "raises a TypeError when passed true" do
-> { @object.raise(true) }.should raise_error(TypeError)
end
it "raises a TypeError when passed false" do
-> { @object.raise(false) }.should raise_error(TypeError)
end
it "raises a TypeError when passed nil" do
-> { @object.raise(nil) }.should raise_error(TypeError)
end
it "re-raises a previously rescued exception without overwriting the backtrace" do
# This spec is written using #backtrace and matching the line number
# from the string, as backtrace_locations is a more advanced
# method that is not always supported by implementations.
#
initial_raise_line = nil
raise_again_line = nil
raised_again = nil
if defined?(FiberSpecs::NewFiberToRaise) and @object == FiberSpecs::NewFiberToRaise
fiber = Fiber.new do
begin
initial_raise_line = __LINE__; Fiber.yield
rescue => raised
begin
raise_again_line = __LINE__; Fiber.yield raised
rescue => raised_again
raised_again
end
end
end
fiber.resume
raised = fiber.raise 'raised'
raised_again = fiber.raise raised
else
begin
initial_raise_line = __LINE__; @object.raise 'raised'
rescue => raised
begin
raise_again_line = __LINE__; @object.raise raised
rescue => raised_again
raised_again
end
end
end
raised_again.backtrace.first.should include("#{__FILE__}:#{initial_raise_line}:")
raised_again.backtrace.first.should_not include("#{__FILE__}:#{raise_again_line}:")
end
it "allows Exception, message, and backtrace parameters" do
-> do
@object.raise(ArgumentError, "message", caller)
end.should raise_error(ArgumentError, "message")
end
end
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