Add test case for ticket:4061

simulation/modelica/equations/Makefile

@@ -21,7 +21,7 @@ IfEquation4.mos \
 IfEquation5.mos \
 IfEquation6.mos \
 IfEquationUnbalanced.mos \
-ModelBalance1.mos ModelBalance2.mos ModelBalance3.mos \
+ModelBalance1.mos ModelBalance2.mos ModelBalance3.mos ModelBalance4.mos \
 ticket-2337.mos \
 WatchDog1AlgorithmWhen.mos WatchDog2EquationWhen.mos \
 WhenEquation.mos WhenEquation1.mos \

simulation/modelica/equations/ModelBalance4.mos

@@ -0,0 +1,30 @@
+// name: ModelBalance4
+// keywords: balance
+// status: correct
+//
+// Tests an unbalanced model with too many equations
+// ticket 4061
+//
+
+loadString("
+model ModelBalance4
+  Real a;
+  Real b=2;
+equation
+  a = 2*b;
+  b = time+2;
+end ModelBalance4;
+"); getErrorString();
+simulate(ModelBalance4); getErrorString();
+
+// Result:
+// true
+// ""
+// record SimulationResult
+//     resultFile = "",
+//     simulationOptions = "startTime = 0.0, stopTime = 1.0, numberOfIntervals = 500, tolerance = 1e-06, method = 'dassl', fileNamePrefix = 'ModelBalance4', options = '', outputFormat = 'mat', variableFilter = '.*', cflags = '', simflags = ''",
+//     messages = "Failed to build model: ModelBalance4"
+// end SimulationResult;
+// "Error: Too many equations, over-determined system. The model has 3 equation(s) and 2 variable(s).
+// "
+// endResult