What is the test for determining the sufficiency of evidence in a civil case?

favorable to the prosecution, any rational trier of fact could have found beyond a reasonable doubt that the perpetrator was not acting in self defense. (See People v. Johnson (1980) 26 Cal.3d 557, 576 [when the sufficiency of the evidence is challenged, "'the relevant question is whether, after viewing the evidence in the light most favorable to the prosecution, any rational trier of fact could have found the essential elements of the crime beyond a reasonable doubt.' [Citation.]"].)