[iss-227]

Squashed commit of the following:

commit b6edf17
Author: joaquin.f.fernandez <joaquin.f.fernandez@gmail.com>
Date:   Thu Jun 1 11:08:33 2023 -0300

    Remove working tests from test-suite.

commit 53548f9
Author: joaquin.f.fernandez <joaquin.f.fernandez@gmail.com>
Date:   Thu Jun 1 11:06:39 2023 -0300

    Added new system tests for mmoc.

commit 8fefb8c
Author: joaquin.f.fernandez <joaquin.f.fernandez@gmail.com>
Date:   Thu Jun 1 11:06:03 2023 -0300

    Added new system tests GT files for mmoc.

commit 21bfee7
Author: joaquin.f.fernandez <joaquin.f.fernandez@gmail.com>
Date:   Thu Jun 1 11:03:37 2023 -0300

    Added new tests for engine.

commit 4437b42
Author: joaquin.f.fernandez <joaquin.f.fernandez@gmail.com>
Date:   Thu Jun 1 11:02:53 2023 -0300

    Added new engine system tests.

src/engine/tests/system/gt_data/BouncingBall/BouncingBall.mo

@@ -0,0 +1,70 @@
+model BouncingBall
+  Real spring1_flange1_f;
+  Real spring1_flange1_s;
+  Real spring1_flange1_v;
+  Real spring1_flange2_f;
+  Real spring1_flange2_s;
+  Real spring1_flange2_v;
+  Real spring1_dy;
+  Real spring1_dv;
+  parameter Real spring1_b=10;
+  parameter Real spring1_k=10000;
+  Real fixed1_flange1_f;
+  Real fixed1_flange1_s;
+  Real fixed1_flange1_v;
+  parameter Real fixed1_s0=0;
+  Real ball1_flange1_f;
+  Real ball1_flange1_s;
+  Real ball1_flange1_v;
+  Real ball1_v;
+  parameter Real ball1_m=1;
+  parameter Real ball1_g=9.8;
+  Real ball1_y(start=10);
+  discrete Real d0;
+  discrete Real d1;
+equation
+  fixed1_flange1_s = fixed1_s0;
+  fixed1_flange1_v = 0;
+  der(ball1_y) = ball1_v;
+  ball1_flange1_v = ball1_v;
+  ball1_flange1_s = ball1_y;
+  spring1_flange2_s = fixed1_flange1_s;
+  spring1_flange2_v = fixed1_flange1_v;
+  spring1_flange1_s = ball1_flange1_s;
+  spring1_flange1_v = ball1_flange1_v;
+  spring1_dv = spring1_flange1_v-spring1_flange2_v;
+  spring1_dy = spring1_flange1_s-spring1_flange2_s;
+  spring1_flange1_f = d0*(spring1_b*spring1_dv+spring1_k*spring1_dy)+(1-d0)*(0);
+  spring1_flange2_f = (((-spring1_flange1_f)));
+  ball1_flange1_f = (-spring1_flange1_f);
+  der(ball1_v) = (ball1_flange1_f-ball1_m*ball1_g)*(1/(ball1_m));
+  fixed1_flange1_f = (-spring1_flange2_f);
+algorithm
+    when spring1_dy<0 then 
+      d0:=1;
+    elsewhen spring1_dy>=0 then 
+      d0:=0;
+    end when;
+    when d0>0 then 
+      d1:=1;
+    elsewhen d0<1 then 
+      d1:=0;
+    end when;
+	annotation(
+
+	experiment(
+		MMO_Description="",
+		MMO_Solver=LIQSS3,
+		MMO_SymDiff=false,
+		MMO_PartitionMethod=Metis,
+		MMO_Output={ball1_y},
+		MMO_OutputType=CI_Sampled,
+		Jacobian=Dense,
+		MMO_BDF_PDepth=1,
+		MMO_BDF_Max_Step=0,
+		StartTime=0.0,
+		StopTime=10,
+		Tolerance={1e-3},
+		AbsTolerance={1e-6}
+	));
+end BouncingBall;