private TestFrameworkSelection GetFallbackSelection(
Dictionary <object, TestFrameworkSelection> selections,
IList <AssemblyName> assemblyReferences,
IEnumerable <ComponentHandle <ITestFramework, TestFrameworkTraits> > filteredTestFrameworkHandlesWithoutFallback,
TestFrameworkOptions testFrameworkOptions,
TestFrameworkFallbackMode testFrameworkFallbackMode)
{
// Strict fallback mode.
if (testFrameworkFallbackMode == TestFrameworkFallbackMode.Strict)
{
return(null);
}
// Approximate fallback mode.
if (assemblyReferences != null)
{
HashSet <string> matchingReferences = null;
HashSet <string> matchingSignatures = null;
foreach (var testFrameworkHandle in filteredTestFrameworkHandlesWithoutFallback)
{
IList <AssemblySignature> assemblySignatures = testFrameworkHandle.GetTraits().FrameworkAssemblies;
foreach (AssemblyName assemblyName in assemblyReferences)
{
foreach (AssemblySignature assemblySignature in assemblySignatures)
{
if (assemblySignature.Name == assemblyName.Name)
{
if (matchingReferences == null)
{
matchingReferences = new HashSet <string>();
matchingSignatures = new HashSet <string>();
}
matchingReferences.Add(assemblyName.FullName);
matchingSignatures.Add(assemblySignature.ToString());
}
}
}
}
if (matchingReferences != null)
{
StringBuilder fallbackExplanationBuilder = new StringBuilder();
fallbackExplanationBuilder.Append("Detected a probable test framework assembly version mismatch.\n");
fallbackExplanationBuilder.Append("Referenced test frameworks: ");
AppendQuotedItems(fallbackExplanationBuilder, matchingReferences);
fallbackExplanationBuilder.Append(".\n");
fallbackExplanationBuilder.Append("Supported test frameworks: ");
AppendQuotedItems(fallbackExplanationBuilder, matchingSignatures);
fallbackExplanationBuilder.Append(".");
string fallbackExplanation = fallbackExplanationBuilder.ToString();
return(GetOrCreateSelectionIfAbsent(selections, fallbackExplanation, () =>
{
TestFrameworkOptions fallbackTestFrameworkOptions = testFrameworkOptions.Copy();
fallbackTestFrameworkOptions.AddProperty(FallbackTestFramework.FallbackExplanationKey,
fallbackExplanation);
return new TestFrameworkSelection(fallbackTestFrameworkHandle, fallbackTestFrameworkOptions,
true);
}));
}
}
if (testFrameworkFallbackMode == TestFrameworkFallbackMode.Approximate)
{
return(null);
}
// Default fallback mode.
return(GetOrCreateSelectionIfAbsent(selections, DefaultFallbackSelectionKey,
() => new TestFrameworkSelection(fallbackTestFrameworkHandle, testFrameworkOptions, true)));
}
public TestDriverData(TestFrameworkOptions testFrameworkOptions)
{
TestFrameworkHandles = new List <ComponentHandle <ITestFramework, TestFrameworkTraits> >();
TestFrameworkOptions = testFrameworkOptions;
Items = new List <T>();
}
SelectTestFrameworksForFilesImpl(
IEnumerable <ComponentHandle <ITestFramework, TestFrameworkTraits> > filteredTestFrameworkHandlesWithoutFallback,
TestFrameworkFallbackMode testFrameworkFallbackMode,
TestFrameworkOptions testFrameworkOptions,
IEnumerable <FileInfo> files)
{
var selections = new Dictionary <object, TestFrameworkSelection>();
var partitions = new MultiMap <TestFrameworkSelection, FileInfo>();
foreach (var file in files)
{
try
{
bool supported = false;
IList <AssemblyName> assemblyReferences = null;
using (var fileInspector = new LazyFileInspector(file))
{
FileType fileType = fileTypeManager.IdentifyFileType(fileInspector);
foreach (var testFrameworkHandle in filteredTestFrameworkHandlesWithoutFallback)
{
TestFrameworkTraits traits = testFrameworkHandle.GetTraits();
if (!traits.IsFrameworkCompatibleWithFileType(fileType, fileTypeManager))
{
continue;
}
// If the file is an assembly, then filter further by assembly references.
if (fileType.IsSameOrSubtypeOf(fileTypeManager.GetFileTypeById("Assembly")))
{
if (assemblyReferences == null)
{
assemblyReferences = GetAssemblyReferences(fileInspector);
}
if (!traits.IsFrameworkCompatibleWithAssemblyReferences(assemblyReferences))
{
continue;
}
}
TestFrameworkSelection selection = GetOrCreateSelectionIfAbsent(
selections, testFrameworkHandle,
() => new TestFrameworkSelection(testFrameworkHandle, testFrameworkOptions, false));
partitions.Add(selection, file);
supported = true;
}
}
if (!supported)
{
TestFrameworkSelection selection = GetFallbackSelection(selections, assemblyReferences,
filteredTestFrameworkHandlesWithoutFallback, testFrameworkOptions, testFrameworkFallbackMode);
if (selection != null)
{
partitions.Add(selection, file);
}
}
}
catch (IOException exception)
{
logger.Log(LogSeverity.Error, string.Format("Skipping file '{0}' due to IO error.", file.FullName), exception);
}
catch (UnauthorizedAccessException exception)
{
logger.Log(LogSeverity.Error, string.Format("Skipping file '{0}' due to security error", file.FullName), exception);
}
}
return(partitions);
}
