What is the test for an award of attorney's fees under Government Code section 800?

" 'The award of attorney's fees under Government Code section 800 is allowed only if the actions of a public entity or official were wholly arbitrary or capricious. The phrase "arbitrary or capricious" encompasses conduct not supported by a fair or substantial reason, a stubborn insistence on following unauthorized conduct, or a bad faith legal dispute.' [Citations.] Attorney's fees may not be awarded simply because the administrative entity or official's action was erroneous, even if it was 'clearly erroneous.' [Citations.]" (Stirling v. Agricultural Labor Relations Bd. (1987) 189 Cal.App.3d 1305, 1312, 235 Cal.Rptr. 56.)