AK.ExpressionSolverTests.TestUndefinedVariablePolicies C# (CSharp) Method

        public static void TestUndefinedVariablePolicies()
        {
            ExpressionSolver solver = new ExpressionSolver();
            try
            {
                solver.SymbolicateExpression("test");
                throw new System.Exception("ExpressionSolverTest failed");
            }
            catch (AK.ESUnknownExpressionException)
            {
                // Expected behaviour
            }

            solver.undefinedVariablePolicy = ExpressionSolver.UndefinedVariablePolicy.DefineGlobalVariable;
            var exp2 = solver.SymbolicateExpression("test2");
            AssertSameValue(solver.GetGlobalVariable("test2").value,0);
            AssertSameValue(exp2.Evaluate(),0);

            solver.undefinedVariablePolicy = ExpressionSolver.UndefinedVariablePolicy.DefineExpressionLocalVariable;
            var exp3 = solver.SymbolicateExpression("sin(test3)");
            var test3 = exp3.GetVariable("test3");
            AssertSameValue(test3.value,0);
            test3.value = System.Math.PI/2;
            AssertSameValue(exp3.Evaluate(),1);
        }