public void TestCaseEvaluationExceptions()
{
var @operator = new LogicalAndOperator(TypeConverter);
ExpectArgumentNullException("context", () => @operator.Evaluate(null, 1, 2));
ExpectArgumentNullException("context", () => @operator.EvaluateLhs(null, 1, out object dummy));
}
public void TestCaseLhsEvaluation()
{
var @operator = new LogicalAndOperator(TypeConverter);
Assert.IsFalse(@operator.EvaluateLhs(EmptyEvaluationContext, true, out object result));
Assert.IsTrue(@operator.EvaluateLhs(EmptyEvaluationContext, false, out result) && result.Equals(false));
}
public void TestCaseConstruction3()
{
var @operator = new LogicalAndOperator("operator", TypeConverter);
Assert.AreEqual("operator", @operator.Symbol);
Assert.AreEqual(11, @operator.Precedence);
Assert.AreEqual(Associativity.LeftToRight, @operator.Associativity);
}
public void TestCaseEvaluation()
{
var @operator = new LogicalAndOperator(TypeConverter);
AssertEvaluation <bool>(@operator, true, true, true);
AssertEvaluation <bool>(@operator, true, false, false);
AssertEvaluation <bool>(@operator, false, true, false);
AssertEvaluation <bool>(@operator, false, false, false);
}
public virtual void Visit(LogicalAndOperator binaryOperator)
{
Visit(binaryOperator.Left);
Visit(binaryOperator.Right);
}
public void TestCaseConstruction2()
{
var @operator = new LogicalAndOperator(TypeConverter);
Assert.AreEqual("&&", @operator.Symbol);
}
public override void Visit(LogicalAndOperator binaryOperator)
{
WriteBinaryExpression(binaryOperator, "&&");
}
public override void Visit(LogicalAndOperator binaryOperator)
{
Visit(binaryOperator.Left);
Write(" && ");
Visit(binaryOperator.Right);
}