fix errors

Author: prbzrg

lib/OptimizationOptimisers/src/OptimizationOptimisers.jl

@@ -71,7 +71,8 @@ function SciMLBase.__solve(cache::OptimizationCache{
     maxiters = Optimization._check_and_convert_maxiters(maxiters)
 
     # At this point, both of them should be fine; but, let's assert it.
-    @assert (isnothing(epochs)||isnothing(maxiters) || (maxiters != epochs * length(data))) "The number of iterations must be specified with either the epochs or maxiters kwarg. Where maxiters = epochs * length(data)."
+    @assert (!isnothing(epochs)&&!isnothing(maxiters) &&
+             (maxiters == epochs * length(data))) "The number of iterations must be specified with either the epochs or maxiters kwarg. Where maxiters = epochs * length(data)."
 
     opt = cache.opt
     θ = copy(cache.u0)

lib/OptimizationOptimisers/test/runtests.jl

@@ -35,7 +35,8 @@ using Lux, MLUtils, Random, ComponentArrays, Printf, MLDataDevices
     @testset "epochs & maxiters" begin
         optprob = SciMLBase.OptimizationFunction(
             (u, data) -> sum(u) + sum(data), Optimization.AutoZygote())
-        prob = SciMLBase.OptimizationProblem(optprob, ones(2), ones(2))
+        prob = SciMLBase.OptimizationProblem(
+            optprob, ones(2), MLUtils.DataLoader(ones(2, 2)))
         @test_throws ArgumentError("The number of iterations must be specified with either the epochs or maxiters kwarg. Where maxiters = epochs * length(data).") solve(
             prob, Optimisers.Adam())
         @test_throws ArgumentError("Both maxiters and epochs were passed but maxiters != epochs * length(data).") solve(