/// <summary> /// Write the constraint description to a MessageWriter /// </summary> /// <param name="writer">The writer on which the description is displayed</param> public abstract void WriteDescriptionTo(MessageWriter writer);
/// <summary>
/// Write the internalActual value for a failing constraint test to a
/// MessageWriter. The default implementation simply writes
/// the raw value of internalActual, leaving it to the writer to
/// perform any formatting.
/// </summary>
/// <param name="writer">The writer on which the internalActual value is displayed</param>
public virtual void WriteActualValueTo(MessageWriter writer)
{
writer.WriteActualValue(internalActual);
}
/// <summary>
/// Write the internalActual value for a failing constraint test to a
/// MessageWriter.
/// </summary>
/// <param name="writer">The writer on which the internalActual value is displayed</param>
public override void WriteActualValueTo(MessageWriter writer)
{
writer.WriteActualValue(actualType);
}
/// <summary>
/// Write the failure message to the MessageWriter provided
/// as an argument. The default implementation simply passes
/// the constraint and the internalActual value to the writer, which
/// then displays the constraint description and the value.
/// Constraints that need to provide additional details,
/// such as where the error occured can override this.
/// </summary>
/// <param name="writer">The MessageWriter on which to display the message</param>
public virtual void WriteMessageTo(MessageWriter writer)
{
writer.DisplayDifferences(this);
}
/// <summary>
/// Write the constraint description to a MessageWriter
/// </summary>
/// <param name="writer">The writer on which the description is displayed</param>
public override void WriteDescriptionTo(MessageWriter writer)
{
writer.Write("property " + name);
}
/// <summary>
/// Write the internalActual value for a failing constraint test to a
/// MessageWriter. Overridden in ThrowsNothingConstraint to write
/// information about the exception that was actually caught.
/// </summary>
/// <param name="writer">The writer on which the internalActual value is displayed</param>
public override void WriteActualValueTo(MessageWriter writer)
{
writer.WriteLine(" ({0})", caughtException.Message);
writer.Write(caughtException.StackTrace);
}
/// <summary>
/// Write the constraint description to a MessageWriter
/// </summary>
/// <param name="writer">The writer on which the description is displayed</param>
public override void WriteDescriptionTo(MessageWriter writer)
{
writer.Write(string.Format("No Exception to be thrown"));
}
/// <summary>
/// Write a description of this constraint to a MessageWriter
/// </summary>
/// <param name="writer">The MessageWriter to use</param>
public override void WriteDescriptionTo(MessageWriter writer)
{
writer.WritePredicate("assignable to");
writer.WriteExpectedValue(expectedType);
}
/// <summary>
/// Write the constraint description to a MessageWriter
/// </summary>
/// <param name="writer">The writer on which the description is displayed</param>
public override void WriteDescriptionTo(MessageWriter writer)
{
writer.WritePredicate("greater than");
writer.WriteExpectedValue(expected);
}