cereal test
n.— «Editors apply what is generically referred to in the newsroom as the “cereal test.” Photos that might upset a reader over breakfast are screened very carefully, and are used only if the subject matter or news value warrants it.» —“Demi Moore cover photo had people talking” by Mike Foley St. Petersurg Times (Florida) July 21, 1991. (source: Double-Tongued Dictionary)