Writ of Mandamus

A writ of mandamus is an extraordinary remedy that allows an appellate court to review a ruling made by a trial court even though the trial court has not yet made a final judgment in the case and a normal appellate remedy is not available. See, e.g., Johnson v. Fourth Court of Appeals, 700 S.W.2d 916, 917 (Tex. 1985); see also Walker v. Packer, 827 S.W.2d 833, 840 (Tex. 1992).