What is the test for a judicial review of a land use decision?

Judicial review of administrative land use decisions is governed by Code of Civil Procedure section 1094.5. (Saad v. City of Berkeley (1994) 24 Cal.App.4th 1206, 1211.) That section permits a court to issue a writ of mandate if it finds an agency has abused its discretion, and an abuse of discretion is established "if the [agency] has not proceeded in the manner required by law, the [agency's] decision is not supported by the findings, or if the findings are not supported by the evidence." (Code Civ. Pro. 1094.5, subd. (b).)