(a) If a testator's surviving spouse married the testator after the testator executed his or her will, the surviving spouse is entitled to receive, as an intestate share no less than the value of the share of the estate he or she would have received if the testator had died intestate as to that portion of the testator's estate, if any, that neither is devised to a child of the testator who was born before the testator married the surviving spouse and who is not a child of the surviving spouse nor is devised or passes to a descendant of such a child, unless:
(1) It appears from the will or other evidence that the will was made in contemplation of the testator's marriage to the surviving spouse;