/// <summary>
/// Indicates whether the instance is less or equal to the reference value.
/// </summary>
/// <param name="value">The instance to test.</param>
/// <param name="referenceValue">The reference value to test.</param>
/// <returns><strong>true</strong> if the instance is less or equal to the reference
/// value; otherwise, <strong>false</strong>.</returns>
/// <exception cref="ArgumentNullException"><em>value</em> or <em>referenceValue</em> is
/// <strong>null</strong>.</exception>
public static bool IsLessOrEqual(this IComparable value, IComparable referenceValue)
{
Precondition.IsNotNull(value, nameof(value));
Precondition.IsNotNull(referenceValue, nameof(referenceValue));
return(value.IsLess(referenceValue) || value.IsEqual(referenceValue));
}
/// <summary>
/// Checks whether the value is equal to the reference value.
/// </summary>
/// <param name="value">The value to test.</param>
/// <param name="referenceValue">The reference value to test.</param>
/// <param name="paramName">The name of the parameter that caused the exception.</param>
/// <param name="message">A message that describes the error.</param>
/// <exception cref="ArgumentOutOfRangeException"><em>value</em> is out of
/// range.</exception>
public static void IsEqual(IComparable value, IComparable referenceValue, string paramName, string message)
{
if (!value.IsEqual(referenceValue))
{
throw new ArgumentOutOfRangeException(paramName, referenceValue, message);
}
}
/// <summary>
/// Checks whether the value is equal to the reference value.
/// </summary>
/// <param name="value">The value to test.</param>
/// <param name="referenceValue">The reference value to test.</param>
/// <exception cref="ArgumentOutOfRangeException"><em>value</em> is out of
/// range.</exception>
public static void IsEqual(IComparable value, IComparable referenceValue)
{
if (!value.IsEqual(referenceValue))
{
throw new ArgumentOutOfRangeException();
}
}
void IsEqual(IComparable x, Object y, Boolean expected)
{
Boolean result = default;
Test.IfNot.Action.ThrowsException(() => result = x.IsEqual(y), out Exception ex);
Test.If.Value.IsEqual(result, expected);
}
/// <summary>
/// 如果等于比较值则返回默认值否则返回原值
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <param name="compareValue">比较值</param>
/// <param name="becomeValue">默认值</param>
/// <returns></returns>
public static T IfEqualBecome <T>(this IComparable <T> t, T compareValue, T becomeValue)
{
if (t.IsEqual(compareValue))
{
return(becomeValue);
}
else
{
return((T)t);
}
}
public void IsEqual_Throws_ArgumentNullException(IComparable value, IComparable referenceValue, string expectedParameter)
{
AssertThrowsException<ArgumentNullException>(() => value.IsEqual(referenceValue), expectedParameter);
}
public void IsEqual_Throws_ArgumentNullException(IComparable value, IComparable referenceValue, string expectedParameter)
{
AssertThrowsException <ArgumentNullException>(() => value.IsEqual(referenceValue), expectedParameter);
}