public void LogDetails_LogsWhenPartiallyMatchedAttributesFound()
{
// Arrange
var modeMatchResult = new ModeMatchResult <string>();
modeMatchResult.PartialMatches.Add(
ModeMatchAttributes.Create("mode0", new[] { "first-attr" }, new[] { "second-attr" }));
modeMatchResult.PartiallyMatchedAttributes.Add("first-attr");
var logger = MakeLogger(LogLevel.Verbose);
var tagHelper = new Mock <ITagHelper>();
var uniqueId = "id";
var viewPath = "Views/Home/Index.cshtml";
// Act
modeMatchResult.LogDetails(logger, tagHelper.Object, uniqueId, viewPath);
// Assert
Mock.Get(logger).Verify(l => l.Log(
LogLevel.Warning,
It.IsAny <int>(),
It.IsAny <object>(),
It.IsAny <Exception>(),
It.IsAny <Func <object, Exception, string> >()), Times.Once);
Mock.Get(logger).Verify(l => l.Log(
LogLevel.Verbose,
It.IsAny <int>(),
It.IsAny <object>(),
It.IsAny <Exception>(),
It.IsAny <Func <object, Exception, string> >()), Times.Once);
}
/// <summary>
/// Determines the modes a <see cref="ITagHelper" /> can run in based on which modes have all their required
/// attributes present, non null, non empty, and non whitepsace.
/// </summary>
/// <typeparam name="TMode">The type representing the <see cref="ITagHelper" />'s modes.</typeparam>
/// <param name="context">The <see cref="TagHelperContext"/>.</param>
/// <param name="modeInfos">The modes and their required attributes.</param>
/// <returns>The <see cref="ModeMatchResult{TMode}"/>.</returns>
public static ModeMatchResult <TMode> DetermineMode <TMode>(
[NotNull] TagHelperContext context,
[NotNull] IEnumerable <ModeAttributes <TMode> > modeInfos)
{
// true == full match, false == partial match
var matchedAttributes = new Dictionary <string, bool>(StringComparer.OrdinalIgnoreCase);
var result = new ModeMatchResult <TMode>();
foreach (var modeInfo in modeInfos)
{
var modeAttributes = GetPresentMissingAttributes(context, modeInfo.Attributes);
if (modeAttributes.Present.Any())
{
if (!modeAttributes.Missing.Any())
{
// A complete match, mark the attribute as fully matched
foreach (var attribute in modeAttributes.Present)
{
matchedAttributes[attribute] = true;
}
result.FullMatches.Add(ModeMatchAttributes.Create(modeInfo.Mode, modeInfo.Attributes));
}
else
{
// A partial match, mark the attribute as partially matched if not already fully matched
foreach (var attribute in modeAttributes.Present)
{
bool attributeMatch;
if (!matchedAttributes.TryGetValue(attribute, out attributeMatch))
{
matchedAttributes[attribute] = false;
}
}
result.PartialMatches.Add(ModeMatchAttributes.Create(
modeInfo.Mode, modeAttributes.Present, modeAttributes.Missing));
}
}
}
// Build the list of partially matched attributes (those with partial matches but no full matches)
foreach (var attribute in matchedAttributes.Keys)
{
if (!matchedAttributes[attribute])
{
result.PartiallyMatchedAttributes.Add(attribute);
}
}
return(result);
}