public void TestDefinition()
{
var def = new ArrayPopFunction();
Assert.That(def.Name.Name, Is.EqualTo("array_pop"));
Assert.That(def.Parameters.Count, Is.EqualTo(1));
Assert.That(def.Parameters.ElementAt(0).Name, Is.EqualTo("array"));
}
private ExpressionBase Evaluate(string input, InterpreterScope scope, string expectedError = null)
{
var funcDef = new ArrayPopFunction();
var expression = ExpressionBase.Parse(new PositionalTokenizer(Tokenizer.CreateTokenizer(input)));
Assert.That(expression, Is.InstanceOf <FunctionCallExpression>());
var funcCall = (FunctionCallExpression)expression;
ExpressionBase error;
var parameterScope = funcCall.GetParameters(funcDef, scope, out error);
if (expectedError == null)
{
Assert.That(error, Is.Null);
ExpressionBase result;
Assert.That(funcDef.Evaluate(parameterScope, out result), Is.True);
return(result);
}
else
{
if (error == null)
{
Assert.That(funcDef.Evaluate(parameterScope, out error), Is.False);
}
Assert.That(error, Is.InstanceOf <ParseErrorExpression>());
var parseError = (ParseErrorExpression)error;
while (parseError.InnerError != null)
{
parseError = parseError.InnerError;
}
Assert.That(parseError.Message, Is.EqualTo(expectedError));
return(null);
}
}
