Since there's quite a lot of text here I'd be tempted to use `self.assertString` or `self.assertFilesEqual` instead (depending on whether you get the results as a string from StringIO or as a real file). This would let you put the expected text straight into a results file. (e.g. See `lib/iris/tests/results/cdm/str_repr/simple.__str__.txt`)

NB. You could also use the assertString technique in the previous tests which might help cut down on the long-line issues.