The A.F.L.-C.I.O. and other groups plan on Monday to file a complaint with the Biden administration over claims of labor violations at a group of auto parts factories in Mexico, a move that will pose an early test of the new North American trade deal and its labor protections. The complaint focuses on the Tridonex auto parts factories in the city of Matamoros, just across the border from Brownsville, Texas. The A.F.L.-C.I.O. said workers there have been harassed and fired over their efforts to organize with an independent union, SNITIS, in place of a company-controlled union.