I am working on one of the specs for string.each which is failing. This is
the spec that is failing.
it "raises a RuntimeError if the string is modified while substituting" do
str = "hello\nworld"
should_raise(RuntimeError) { str.send(cmd) { str[0] = 'x' } }
end
The idea is that the string that is being iterated over shouldn't be changed
during the iteration. It is easy enough to freeze the string in the first line
of MutableString.EachLine using:
RubyUtils.GetExecutionContext(context).FreezeObject(self); Which
appropriately throws an error when the string gets modified, however this
approach throws a "TypeError" and the spec wants a "RuntimeError" (message:
String#each raises a RuntimeError if the string is modified while substituting
FAILED, Expected RuntimeError, got TypeError (can't modify frozen object)). I
considered wrapping the code in EachLine that invokes the each block with a try
catch and then rethrowing a caught type error exception to a runtime exception
however I don't see a runtime exception type in RubyExceptions. Any
suggestions on how best to approach this?
Thx!
rem
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