public static void DbFunctions_ATAN()
{
DbFunctionTools tools = new DbFunctionTools();
Random rnd = new Random();
//Double.
{
Console.WriteLine("Testing DbFunctions.ATAN(Double)...");
double input = rnd.NextDouble();
if (input < 0.5)
{
input = input * -1d;
}
List <DbValue> args = new List <DbValue>();
args.Add(tools.AllocValue(input));
DbFunctionArguments fargs = new DbFunctionArguments(args);
DbValue valOutput = DbFunctions.ATAN(tools, fargs);
ByteSlice bs = valOutput.Eval();
double output = tools.GetDouble(bs);
double expected = Math.Atan(input);
if (expected != output)
{
throw new Exception("DbFunctions.ATAN(Double) has failed. Expected result: " + expected.ToString() + ", but received: " + output.ToString());
}
else
{
Console.WriteLine("Expected results received.");
}
}
{
Console.WriteLine("Testing DbFunctions.ATAN(Int32)...");
int input = rnd.Next(Int32.MinValue, Int32.MaxValue);
List <DbValue> args = new List <DbValue>();
args.Add(tools.AllocValue(input));
DbFunctionArguments fargs = new DbFunctionArguments(args);
DbValue valOutput = DbFunctions.ATAN(tools, fargs);
ByteSlice bs = valOutput.Eval();
double output = tools.GetDouble(bs);
double expected = Math.Atan((double)input);
if (Double.IsNaN(output) && Double.IsNaN(expected))
{
Console.WriteLine("Expected results received.");
}
else
{
if (expected != output)
{
throw new Exception("DbFunctions.ATAN(Int32) has failed. Expected result: " + expected.ToString() + ", but received: " + output.ToString());
}
else
{
Console.WriteLine("Expected results received.");
}
}
}
{
Console.WriteLine("Testing DbFunctions.ATAN(Long)...");
long input = DateTime.Now.Ticks;
List <DbValue> args = new List <DbValue>();
args.Add(tools.AllocValue(input));
DbFunctionArguments fargs = new DbFunctionArguments(args);
DbValue valOutput = DbFunctions.ATAN(tools, fargs);
ByteSlice bs = valOutput.Eval();
double output = tools.GetDouble(bs);
double expected = Math.Atan((double)input);
if (Double.IsNaN(output) && Double.IsNaN(expected))
{
Console.WriteLine("Expected results received.");
}
else
{
if (expected != output)
{
throw new Exception("DbFunctions.ATAN(Int32) has failed. Expected result: " + expected.ToString() + ", but received: " + output.ToString());
}
else
{
Console.WriteLine("Expected results received.");
}
}
}
}
