public ReducedBooleanExpression(ExpandedBooleanExpression bexpr)
{
_sortedVariables = bexpr.GetAllVariables();
ushort index = 0;
foreach (char c in _sortedVariables)
{
_alphabet[c] = index;
index++;
}
Implicant i = null;
foreach (string factor in bexpr.AsString.Split('+'))
{
i = new Implicant(this, factor);
if ((i == null) || (i.IsContradiction))
{
continue;
}
_implicants.Add(i);
}
//
CalculatePrimeImplicants();
BuildMintermToPrimeImplicantTable();
_mintermCount = _primeImplicantTable.Count();
PickFinalImplicants();
}
public void TestValidExpandedExpressions()
{
foreach (ExpressionTestCase t in validCases)
{
expr = new ExpandedBooleanExpression(t.inputExpression);
Assert.AreEqual(t.expectedExpression, expr.ToString());
}
}
public void TestVariableParsing()
{
foreach (ExpressionTestCase te in validCases)
{
expr = new ExpandedBooleanExpression(te.inputExpression);
CollectionAssert.AreEqual(expr.GetAllVariables(), te.variables);
}
}
public void TestVariableCount()
{
foreach (ExpressionTestCase te in validCases)
{
expr = new ExpandedBooleanExpression(te.inputExpression);
Assert.AreEqual(expr.GetVariableCount(), te.variableCount);
}
}
public void TestInvalidExpandedExpressions()
{
foreach (InvalidExpressionTestCase t in invalidCases)
{
try
{
expr = new ExpandedBooleanExpression(t.inputExpression);
}
catch (Exception e)
{
StringAssert.Contains(e.Message, t.expectedExceptionMessage);
}
}
}
