public static void DbFunctions_CHARINDEX()
{
DbFunctionTools tools = new DbFunctionTools();
//String,Int32.
{
Console.WriteLine("Testing DbFunctions.CHARINDEX(char(n), char(n)...");
mstring word = mstring.Prepare("apple");
mstring sentence = mstring.Prepare("Red is apple");
List <DbValue> args = new List <DbValue>();
args.Add(tools.AllocValue(word));
args.Add(tools.AllocValue(sentence));
DbFunctionArguments fargs = new DbFunctionArguments(args);
DbValue valOutput = DbFunctions.CHARINDEX(tools, fargs);
ByteSlice bs = valOutput.Eval();
int output = tools.GetInt(bs);
int expected = 7;
if (expected != output)
{
throw new Exception("DbFunctions.CHARINDEX(char(n), char(n) has failed. Expected result: " + expected.ToString() + ", but received: " + output.ToString());
}
else
{
Console.WriteLine("Expected results received.");
}
}
{
Console.WriteLine("Testing DbFunctions.CHARINDEX(char(n), char(n), Int32...");
mstring word = mstring.Prepare("apple");
mstring sentence = mstring.Prepare("Red is apple, or more apples.");
int startIndex = 8;
List <DbValue> args = new List <DbValue>();
args.Add(tools.AllocValue(word));
args.Add(tools.AllocValue(sentence));
args.Add(tools.AllocValue(startIndex));
DbFunctionArguments fargs = new DbFunctionArguments(args);
DbValue valOutput = DbFunctions.CHARINDEX(tools, fargs);
ByteSlice bs = valOutput.Eval();
int output = tools.GetInt(bs);
int expected = 22;
if (expected != output)
{
throw new Exception("DbFunctions.CHARINDEX(char(n), char(n), Int32 has failed. Expected result: " + expected.ToString() + ", but received: " + output.ToString());
}
else
{
Console.WriteLine("Expected results received.");
}
}
}
