[testsuite] add testcase for ticket #5807

Author: kabdelhak

testsuite/simulation/modelica/start_value_selection/Makefile

@@ -5,6 +5,7 @@ TESTFILES = \
 	UnevaluateableFixedAttribute.mos \
 	MinimalModel.mos \
 	asmaFlow.mos \
+	ticket5807.mos \
 
 
 # test that currently fail. Move up when fixed. 

testsuite/simulation/modelica/start_value_selection/ticket5807.mos

@@ -0,0 +1,64 @@
+// name:     ticket #5807 [backend]
+// keywords: start value selection
+// status:   correct
+// teardown_command: rm -rf TestInitStart* _TestInitStart*
+
+loadString("
+model TestInitStart
+  final parameter Real p(start = p_start, fixed = false);
+  parameter Real p_start = -2;
+initial equation
+ (p - 1)*p*(p+2) = 0;
+annotation(__OpenModelica_simulationFlags(lv=LOG_NLS_V));
+end TestInitStart;
+"); getErrorString();
+
+simulate(TestInitStart); getErrorString();
+// Result:
+// true
+// ""
+// record SimulationResult
+//     resultFile = "TestInitStart_res.mat",
+//     simulationOptions = "startTime = 0.0, stopTime = 1.0, numberOfIntervals = 500, tolerance = 1e-06, method = 'dassl', fileNamePrefix = 'TestInitStart', options = '', outputFormat = 'mat', variableFilter = '.*', cflags = '', simflags = '-lv=LOG_NLS_V'",
+//     messages = "LOG_NLS           | info    | initialize mixed system solvers
+// |                 | |       | | 0 mixed systems
+// LOG_NLS           | info    | initialize non-linear system solvers
+// |                 | |       | | 1 non-linear systems
+// LOG_NLS           | info    | update static data of non-linear system solvers
+// LOG_NLS           | info    | ############ Solve nonlinear system 2 at time 0 ############
+// |                 | |       | | initial variable values:
+// |                 | |       | | | [ 1]                              p  =               -2		 nom =                1
+// LOG_NLS_V         | info    | ------------------------------------------------------
+// LOG_NLS_V         | info    | SOLVING NON-LINEAR SYSTEM USING MIXED SOLVER (Newton/Homotopy solver)
+// LOG_NLS_V         | info    | EQUATION NUMBER: 2
+// LOG_NLS_V         | info    | TIME:   0.0000000000e+00
+// LOG_NLS_V         | info    | number of function calls (so far!):  0
+// LOG_NLS_V         | info    | System values [1-dim]
+// |                 | |       | |               -2 
+// LOG_NLS_V         | info    | Nominal values [1-dim]
+// |                 | |       | |                1 
+// LOG_NLS_V         | info    | Scaling values [2-dim]
+// |                 | |       | |                2                1 
+// LOG_NLS_V         | info    | x0 [1-dim]
+// |                 | |       | |               -2 
+// LOG_NLS_V         | info    | NO ITERATION NECESSARY!!!
+// LOG_NLS_V         | info    | ******************************************************
+// LOG_NLS_V         | info    | SYSTEM SOLVED
+// LOG_NLS_V         | info    | number of function calls:  1
+// LOG_NLS_V         | info    | ------------------------------------------------------
+// LOG_NLS_V         | info    | Solution [1-dim]
+// |                 | |       | |               -2 
+// LOG_NLS           | info    | | Solution status: SOLVED
+// |                 | |       | | |  number of iterations           : 0
+// |                 | |       | | |  number of function evaluations : 1
+// |                 | |       | | |  number of jacobian evaluations : 0
+// |                 | |       | | | solution values:
+// |                 | |       | | | [ 1]                              p  =               -2
+// LOG_SUCCESS       | info    | The initialization finished successfully without homotopy method.
+// LOG_SUCCESS       | info    | The simulation finished successfully.
+// LOG_NLS           | info    | free mixed system solvers
+// LOG_NLS           | info    | free non-linear system solvers
+// "
+// end SimulationResult;
+// ""
+// endResult