fixup! fixup! test: add extensive modelingtoolkitize tests

Author: AayushSabharwal

test/modelingtoolkitize.jl

@@ -458,13 +458,13 @@ sys = modelingtoolkitize(prob)
             @parameters p=3.0 q=4.0
             loss = (p - x)^2 + q * (y - x^2)^2
             @mtkbuild optsys = OptimizationSystem(loss, [x, y], [p, q])
-            prob1 = OptimizationProblem(optsys, [], grad=true, hess=true)
+            prob1 = OptimizationProblem(optsys, [], grad = true, hess = true)
             newsys = complete(modelingtoolkitize(prob1))
             @test is_variable(newsys, newsys.x)
             @test is_variable(newsys, newsys.y)
             @test is_parameter(newsys, newsys.p)
             @test is_parameter(newsys, newsys.q)
-            prob2 = OptimizationProblem(newsys, [], grad=true, hess=true)
+            prob2 = OptimizationProblem(newsys, [], grad = true, hess = true)
 
             sol1 = solve(prob1, GradientDescent())
             sol2 = solve(prob2, GradientDescent())