add probprog test group

Author: sbrantq

test/runtests.jl

@@ -60,4 +60,12 @@ const REACTANT_TEST_GROUP = lowercase(get(ENV, "REACTANT_TEST_GROUP", "all"))
             @safetestset "Lux Integration" include("nn/lux.jl")
         end
     end
+
+    if REACTANT_TEST_GROUP == "all" || REACTANT_TEST_GROUP == "probprog"
+        @safetestset "ProbProg Sample" include("probprog/sample.jl")
+        @safetestset "ProbProg BLR" include("probprog/blr.jl")
+        @safetestset "ProbProg Simulate" include("probprog/simulate.jl")
+        @safetestset "ProbProg Generate" include("probprog/generate.jl")
+        @safetestset "ProbProg Linear Regression" include("probprog/linear_regression.jl")
+    end
 end