What is the test for establishing that an appealed judgment is presumed correct?

A fundamental rule of appellate review is that an appealed judgment is presumed correct. (Denham v. Superior Court (1970) 2 Cal.3d 557, 564.) "'All intendments and presumptions are indulged to support it on matters as to which the record is silent, and error must be affirmatively shown.'" (Ibid.) Additionally, under the doctrine of implied findings, the appellate court must infer that the trial court made all factual findings necessary to support the judgment. (In re Marriage of Arceneaux (1990) 51 Cal.3d 1130, 1133-1134.)