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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 "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 the previously rescued exception if no exception is specified" do
-> do
begin
@object.raise Exception, "outer"
ScratchPad.record :no_abort
rescue
begin
@object.raise StandardError, "inner"
rescue
end
@object.raise
ScratchPad.record :no_reraise
end
end.should raise_error(Exception, "outer")
ScratchPad.recorded.should be_nil
end
it "re-raises a previously rescued exception without overwriting the backtrace" do
begin
initial_raise_line = __LINE__; @object.raise 'raised'
rescue => raised
begin
raise_again_line = __LINE__; @object.raise raised
rescue => raised_again
# 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.
raised_again.backtrace.first.should include("#{__FILE__}:#{initial_raise_line}:")
raised_again.backtrace.first.should_not include("#{__FILE__}:#{raise_again_line}:")
end
end
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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