/// <summary>
/// Filter the list of active test methods to those matching the tag
/// expression.
/// </summary>
/// <param name="groups">The test groups.</param>
public override void Filter(IList<TestGroup> groups)
{
string tagExpression = this.Settings.TagExpression;
if (!string.IsNullOrEmpty(tagExpression))
{
this.Settings.TestRunStatusMessage += " - Tag Expression '" + tagExpression + "'";
foreach (TestGroup group in groups)
{
List<TestMethod> activeMethods =
new TagManager(group).EvaluateExpression(tagExpression).ToList();
Remove(group.Methods, m => !activeMethods.Contains(m));
}
Remove(groups, g => g.Methods.Count == 0);
}
}
/// <summary>
/// Create an expression evaluator.
/// </summary>
/// <param name="owner">The owner object.</param>
/// <param name="tagExpression">Expression object.</param>
private ExpressionEvaluator(TagManager owner, string tagExpression)
{
if (tagExpression == null)
{
throw new ArgumentNullException("tagExpression");
}
else if (tagExpression.Length == 0)
{
throw new ArgumentOutOfRangeException("tagExpression");
}
_owner = owner;
_tagExpression = tagExpression;
}
/// <summary>
/// Evaluate a tag expression.
/// </summary>
/// <param name="owner">The owner object.</param>
/// <param name="tagExpression">Tag expression.</param>
/// <returns>Test methods associated with the tag expression.</returns>
public static IEnumerable<TestMethod> Evaluate(TagManager owner, string tagExpression)
{
return new ExpressionEvaluator(owner, tagExpression).Evaluate();
}
/// <summary>
/// Evaluate a tag expression.
/// </summary>
/// <param name="owner">The owner object.</param>
/// <param name="tagExpression">Tag expression.</param>
/// <returns>Test methods associated with the tag expression.</returns>
public static IEnumerable <TestMethod> Evaluate(TagManager owner, string tagExpression)
{
return(new ExpressionEvaluator(owner, tagExpression).Evaluate());
}
