public void EvaluateUndefinedInstanceVar()
{
InstanceVarExpression expr = new InstanceVarExpression("foo");
DynamicObject obj = new DynamicObject(null);
Context context = new Context(obj, null);
Assert.IsNull(expr.Evaluate(context));
}
public void EvaluateDefinedInstanceVar()
{
InstanceVarExpression expr = new InstanceVarExpression("one");
DynamicObject obj = new DynamicObject(null);
obj.SetValue("one", 1);
Context context = new Context(obj, null);
Assert.AreEqual(1, expr.Evaluate(context));
}
public void ParseInstanceVariableExpression()
{
Parser parser = new Parser("@a");
var expected = new InstanceVarExpression("a");
var result = parser.ParseExpression();
Assert.IsNotNull(result);
Assert.AreEqual(expected, result);
Assert.IsNull(parser.ParseExpression());
}
public void Equals()
{
InstanceVarExpression expr1 = new InstanceVarExpression("one");
InstanceVarExpression expr2 = new InstanceVarExpression("two");
InstanceVarExpression expr3 = new InstanceVarExpression("one");
Assert.IsTrue(expr1.Equals(expr3));
Assert.IsTrue(expr3.Equals(expr1));
Assert.AreEqual(expr1.GetHashCode(), expr3.GetHashCode());
Assert.IsFalse(expr1.Equals(null));
Assert.IsFalse(expr1.Equals(123));
Assert.IsFalse(expr1.Equals(expr2));
Assert.IsFalse(expr2.Equals(expr1));
}
