What is the test for a claim for possession of a house in the name of the deceased?

2 In Tyranski v. Piggins, supra, 205 N.W.2d at pages 596-597, the plaintiff cleaned the house, did the marketing, cooked the food, did the decedent's personal laundry, acted as his hostess, cared for him when he was sick, and contributed money towards the purchase of a house in which the unmarried plaintiff and the decedent resided. The court held it was proper to enforce the parties' express agreement to convey the house, which was held in the name of the decedent, to the plaintiff.