test: fix solution indexing in test

AayushSabharwal · AayushSabharwal · commit 9b604c520ed2 · 2023-11-13T19:46:41.000+05:30
diff --git a/test/tuple_nodes.jl b/test/tuple_nodes.jl
@@ -91,7 +91,7 @@ prob = ODEProblem(f, scenario, (0.0, 1.0))
 
 sol = solve(prob, Tsit5())
 
-@test length(sol[end]) == 12
+@test length(sol[:, end]) == 12
 
 organ1 .+ organ2
 scenario .+ scenario
