public void TestRightTrueEvaluate()
{
var expression = new AndExpression(
Mock.Of <IExpression>(e => e.Evaluate(It.IsAny <IDictionary <string, object> >()) == (object)false),
Mock.Of <IExpression>(e => e.Evaluate(It.IsAny <IDictionary <string, object> >()) == (object)true),
ExpressiveOptions.None);
Assert.AreEqual(false, expression.Evaluate(null));
}
public void TestBothTrueEvaluate()
{
var expression = new AndExpression(
Mock.Of <IExpression>(e => e.Evaluate(It.IsAny <IDictionary <string, object> >()) == (object)true),
Mock.Of <IExpression>(e => e.Evaluate(It.IsAny <IDictionary <string, object> >()) == (object)true),
new Context(ExpressiveOptions.None));
Assert.AreEqual(true, expression.Evaluate(null));
}
public void GetAndEvaluateAndExpression()
{
AndExpression expression = AndExpression.Instance;
Assert.IsNotNull(expression);
Machine machine = new Machine();
machine.Push(true);
machine.Push(true);
expression.Evaluate(machine);
Assert.AreEqual(1, machine.StackCount);
Assert.IsTrue((bool)machine.Pop());
Assert.AreEqual(0, machine.StackCount);
machine.Push(true);
machine.Push(false);
expression.Evaluate(machine);
Assert.AreEqual(1, machine.StackCount);
Assert.IsFalse((bool)machine.Pop());
Assert.AreEqual(0, machine.StackCount);
machine.Push(false);
machine.Push(true);
expression.Evaluate(machine);
Assert.AreEqual(1, machine.StackCount);
Assert.IsFalse((bool)machine.Pop());
Assert.AreEqual(0, machine.StackCount);
machine.Push(false);
machine.Push(false);
expression.Evaluate(machine);
Assert.AreEqual(1, machine.StackCount);
Assert.IsFalse((bool)machine.Pop());
Assert.AreEqual(0, machine.StackCount);
}
private void DoTestEvaluate(IExpression a, IExpression b, bool expected)
{
// Arrange
IExpression expression = new AndExpression(a, b);
// Act
bool result = expression.Evaluate(null);
// Assert
Assert.AreEqual(expected, result);
}
public void TestShortCircuit()
{
var rightHandMock = new Mock <IExpression>();
var expression = new AndExpression(
Mock.Of <IExpression>(e => e.Evaluate(It.IsAny <IDictionary <string, object> >()) == (object)false),
rightHandMock.Object,
new Context(ExpressiveOptions.None));
expression.Evaluate(null);
rightHandMock.Verify(e => e.Evaluate(It.IsAny <IDictionary <string, object> >()), Times.Never);
}
private static bool EvaluateAndOperator(object left, object right)
{
IExpression expression = new AndExpression(new ConstantExpression(left), new ConstantExpression(right));
return((bool)expression.Evaluate(null));
}