public void TestUInt16ToInt16Nullable()
{
// Test conversion of source type minimum value
UInt16 source = UInt16.MinValue;
Assert.IsInstanceOfType(source, typeof(UInt16));
Int16?result = source.ToInt16Nullable();
Assert.AreEqual((short)0, result);
Assert.IsInstanceOfType(result, typeof(Int16));
// Test conversion of source type value 42 to target type
source = (ushort)42;
Assert.IsInstanceOfType(source, typeof(UInt16));
result = source.ToInt16Nullable();
Assert.AreEqual((short)42, result);
Assert.IsInstanceOfType(result, typeof(Int16));
// Test conversion of source type maximum value
source = UInt16.MaxValue;
Assert.IsInstanceOfType(source, typeof(UInt16));
result = source.ToInt16Nullable();
// Here we would expect this conversion to fail (and return null),
// since the source type's maximum value (65535) is greater than the target type's maximum value (32767).
Assert.IsNull(result);
}
/*
* SByte to Int16: Method omitted
* There is a predefined implicit conversion from SByte to Int16
*/
/*
* Byte to Int16: Method omitted
* There is a predefined implicit conversion from Byte to Int16
*/
/// <summary>
/// Converts this UInt16 to Int16 or returns the specified default value
/// </summary>
/// <returns>This UInt16 converted to Int16</returns>
/// <remarks>
/// Source type: UInt16
/// Min value: 0
/// Max value: 65535
///
/// Target type: Int16
/// Min value: -32768
/// Max value: 32767
/// </remarks>
public static Int16 ToInt16OrDefault(this UInt16 thisUInt16, Int16 defaultValue = default(Int16))
{
return(thisUInt16.ToInt16Nullable().GetValueOrDefault(defaultValue));
}