Format and update tests

Author: YingboMa

src/systems/abstractsystem.jl

@@ -965,7 +965,7 @@ function structural_simplify(sys::AbstractSystem, io = nothing; simplify = false
     sys = alias_elimination!(state)
     # TODO: avoid construct `TearingState` again.
     state = TearingState(sys)
-    has_io && markio!(state, io..., check=false)
+    has_io && markio!(state, io..., check = false)
     check_consistency(state)
     find_solvables!(state; kwargs...)
     sys = dummy_derivative(sys, state; simplify)
@@ -1077,11 +1077,11 @@ function markio!(state, inputs, outputs; check = true)
         end
     end
     check && (all(values(inputset)) ||
-        error("Some specified inputs were not found in system. The following Dict indicates the found variables ",
-              inputset))
+     error("Some specified inputs were not found in system. The following Dict indicates the found variables ",
+           inputset))
     check && (all(values(outputset)) ||
-        error("Some specified outputs were not found in system. The following Dict indicates the found variables ",
-              outputset))
+     error("Some specified outputs were not found in system. The following Dict indicates the found variables ",
+           outputset))
     state
 end
 

test/reduction.jl

@@ -37,12 +37,12 @@ show(io, MIME("text/plain"), lorenz1_aliased);
 str = String(take!(io));
 @test all(s -> occursin(s, str), ["lorenz1", "States (2)", "Parameters (3)"])
 reduced_eqs = [D(x) ~ σ * (y - x)
-               D(y) ~ β + x * (ρ + a) - y]
+               D(y) ~ β + (ρ - z) * x - y]
 test_equal.(equations(lorenz1_aliased), reduced_eqs)
 @test isempty(setdiff(states(lorenz1_aliased), [x, y, z]))
 test_equal.(observed(lorenz1_aliased), [u ~ 0
-                                        a ~ y - x
-                                        z ~ -a])
+                                        z ~ x - y
+                                        a ~ -z])
 
 # Multi-System Reduction