Added test model for spatial discretization.

Author: HildingElmqvist

test/models/TestSpatialDiscretization.jl

@@ -0,0 +1,20 @@
+module TestSpatialDiscretization
+
+using Modia
+using ModiaMath.plot
+
+const n=5
+@model SpatialDiscretization begin
+  u = Var(start=zeros(n))
+  c = 1
+  @equations begin
+#    der(u[2:n]) = ( u[2:n] - u[1:n-1] ) / c
+    der(u) = [1; ( u[2:n] - u[1:n-1] ) / c]
+  end
+end
+
+result = simulate(SpatialDiscretization, 1)
+plot(result, "u")
+
+end
+

test/runsimulationtests.jl

@@ -14,6 +14,7 @@ include("models/TestEquations.jl")
 include("models/TestElectrical.jl")
 include("models/TestFilter.jl")
 include("models/TestArrayOfComponents.jl")
+include("models/TestSpatialDiscretization.jl")
 
 #include("models/TestCoupledInertias.jl")
 #include("models/TestPendulum.jl")