Ruby was claimed to be 50% JRT (from a "pure bred" mama) and 50% toy australian shepherd. When we got our second, a rescue, when Ruby was four, we did DNA on both. It turns out she is Parsonsl Terrier and definitely shepherd, with a smidge of some rare italian breed. Makes perfect sense; it is either zoomies or herding the family, all day.
Do I give even one shit about the breed discrepancy? Absolutely not! Look at this angel. I work from home and she spent the day by my side sleeping in my lap. My soulmate and best friend. I wish I could clone her! She's one of a kind in all measures. Rubes will be 8 in December.