public void CallNativeObjectMethodWithoutArguments()
{
Person person = new Person() { FirstName = "Adam", LastName = "Doe" };
BindingEnvironment environment = new BindingEnvironment();
environment.SetValue("adam", person);
CallExpression expression = new CallExpression(new AttributeExpression(new NameExpression("adam"), "GetName"), null);
var result = expression.Evaluate(environment);
Assert.IsNotNull(result);
Assert.AreEqual(person.GetName(), result);
}
public void CallNativeObjectMethodWithArguments()
{
Calculator calculator = new Calculator();
BindingEnvironment environment = new BindingEnvironment();
environment.SetValue("calculator", calculator);
CallExpression expression = new CallExpression(new AttributeExpression(new NameExpression("calculator"), "Add"), new IExpression[] { new ConstantExpression(1), new ConstantExpression(2) });
var result = expression.Evaluate(environment);
Assert.IsNotNull(result);
Assert.AreEqual(calculator.Add(1, 2), result);
}
public void CallLen()
{
BindingEnvironment environment = new BindingEnvironment();
environment.SetValue("len", new LenFunction());
CallExpression expression = new CallExpression(new NameExpression("len"), new IExpression[] { new ConstantExpression("spam") });
var result = expression.Evaluate(environment);
Assert.IsNotNull(result);
Assert.AreEqual(4, result);
Assert.IsNotNull(expression.TargetExpression);
Assert.IsNotNull(expression.ArgumentExpressions);
}
public void CallNativeType()
{
BindingEnvironment environment = new BindingEnvironment();
environment.SetValue("FileInfo", typeof(System.IO.FileInfo));
CallExpression expression = new CallExpression(new NameExpression("FileInfo"), new IExpression[] { new ConstantExpression("unknown.txt") });
var result = expression.Evaluate(environment);
Assert.IsNotNull(result);
Assert.IsInstanceOfType(result, typeof(System.IO.FileInfo));
var fileinfo = (System.IO.FileInfo)result;
Assert.AreEqual("unknown.txt", fileinfo.Name);
}
public void CallObjectMethod()
{
DefinedClass klass = DynamicObjectTests.CreateClassWithMethods("Spam");
DynamicObject dynobj = (DynamicObject)klass.Apply(null, null, null);
BindingEnvironment environment = new BindingEnvironment();
environment.SetValue("foo", dynobj);
CallExpression expression = new CallExpression(new AttributeExpression(new NameExpression("foo"), "getSelf"), null);
var result = expression.Evaluate(environment);
Assert.IsNotNull(result);
Assert.AreEqual(dynobj, result);
}
public void CallNativeTypeStaticMethod()
{
BindingEnvironment environment = new BindingEnvironment();
environment.SetValue("File", typeof(System.IO.File));
CallExpression expression = new CallExpression(new AttributeExpression(new NameExpression("File"), "Exists"), new IExpression[] { new ConstantExpression("unknown.txt") });
var result = expression.Evaluate(environment);
Assert.IsNotNull(result);
Assert.IsInstanceOfType(result, typeof(bool));
Assert.AreEqual(false, result);
}
public void RaiseWhenCallLenWithNullArguments()
{
BindingEnvironment environment = new BindingEnvironment();
environment.SetValue("len", new LenFunction());
CallExpression expression = new CallExpression(new NameExpression("len"), null);
try
{
expression.Evaluate(environment);
Assert.Fail("Exception expected");
}
catch (Exception ex)
{
Assert.IsInstanceOfType(ex, typeof(TypeError));
Assert.AreEqual("len() takes exactly one argument (0 given)", ex.Message);
}
}