RubyString.newString(ruby, "Line 1"),
RubyString.newString(ruby, "Line 2"),
};
RubyArray backtrace = RubyArray.newArray(ruby, Arrays.<IRubyObject>asList(lines));
exception.set_backtrace(backtrace);
ruby.printError(exception);
assertEquals("Line 1: A message (NameError)\n\tfrom Line 2\n", err.toString());
}
public void testPrintErrorShouldOnlyPrintErrorMessageWhenBacktraceIsNil() {
final ByteArrayOutputStream err = new ByteArrayOutputStream();