/// <summary>
/// Gets the test framework object for the given test assembly. It is important that callers to this function have
/// called <see cref="TestContext.SetForInitialization"/> before calling this, so that the test framework and
/// any ancillary helper classes have access to the diagnostic and internal diagnostic message sinks.
/// </summary>
/// <param name="testAssembly">The test assembly to get the test framework for</param>
/// <returns>The test framework object</returns>
public static _ITestFramework GetTestFramework(_IAssemblyInfo testAssembly)
{
_ITestFramework result;
var testFrameworkType = GetTestFrameworkType(testAssembly);
if (!typeof(_ITestFramework).IsAssignableFrom(testFrameworkType))
{
TestContext.Current?.SendDiagnosticMessage("Test framework type '{0}' does not implement '{1}'; falling back to '{2}'", testFrameworkType.FullName, typeof(_ITestFramework).FullName, typeof(XunitTestFramework).FullName);
testFrameworkType = typeof(XunitTestFramework);
}
try
{
result = (_ITestFramework)Activator.CreateInstance(testFrameworkType) !;
}
catch (Exception ex)
{
TestContext.Current?.SendDiagnosticMessage("Exception thrown during test framework construction; falling back to default test framework: {0}", ex.Unwrap());
result = new XunitTestFramework();
}
return(result);
}
/// <summary>
/// Initializes a new instance of the <see cref="TestFrameworkProxy"/> class.
/// </summary>
/// <param name="testAssemblyObject">The test assembly (expected to implement <see cref="IAssemblyInfo"/>).</param>
/// <param name="sourceInformationProviderObject">The source information provider (expected to implement <see cref="ISourceInformationProvider"/>).</param>
public TestFrameworkProxy(object testAssemblyObject, object sourceInformationProviderObject)
{
#if PLATFORM_LINUX || PLATFORM_MACOS
InnerTestFramework = new XunitTestFramework();
SourceInformationProvider = new NullMonoSourceInformationProvider();
#else
var testAssembly = (IAssemblyInfo)testAssemblyObject;
var sourceInformationProvider = (ISourceInformationProvider)sourceInformationProviderObject;
var testFrameworkType = typeof(XunitTestFramework);
try
{
var testFrameworkAttr = testAssembly.GetCustomAttributes(typeof(ITestFrameworkAttribute)).FirstOrDefault();
if (testFrameworkAttr != null)
{
var discovererAttr = testFrameworkAttr.GetCustomAttributes(typeof(TestFrameworkDiscovererAttribute)).FirstOrDefault();
if (discovererAttr != null)
{
var discoverer = ExtensibilityPointFactory.GetTestFrameworkTypeDiscoverer(discovererAttr);
if (discoverer != null)
{
testFrameworkType = discoverer.GetTestFrameworkType(testFrameworkAttr);
}
// else // TODO: Log environmental error
}
// else // TODO: Log environmental error
}
}
catch
{
// TODO: Log environmental error
}
try
{
InnerTestFramework = (ITestFramework)Activator.CreateInstance(testFrameworkType);
}
catch
{
// TODO: Log environmental error
InnerTestFramework = new XunitTestFramework();
}
SourceInformationProvider = sourceInformationProvider;
#endif
}
/// <summary>
/// Initializes a new instance of the <see cref="TestFrameworkProxy"/> class.
/// </summary>
/// <param name="testAssemblyObject">The test assembly (expected to implement <see cref="IAssemblyInfo"/>).</param>
/// <param name="sourceInformationProviderObject">The source information provider (expected to implement <see cref="ISourceInformationProvider"/>).</param>
public TestFrameworkProxy(object testAssemblyObject, object sourceInformationProviderObject)
{
var testAssembly = (IAssemblyInfo)testAssemblyObject;
var sourceInformationProvider = (ISourceInformationProvider)sourceInformationProviderObject;
var testFrameworkType = typeof(XunitTestFramework);
try
{
var testFrameworkAttr = testAssembly.GetCustomAttributes(typeof(ITestFrameworkAttribute)).FirstOrDefault();
if (testFrameworkAttr != null)
{
var discovererAttr = testFrameworkAttr.GetCustomAttributes(typeof(TestFrameworkDiscovererAttribute)).FirstOrDefault();
if (discovererAttr != null)
{
var discoverer = ExtensibilityPointFactory.GetTestFrameworkTypeDiscoverer(discovererAttr);
if (discoverer != null)
testFrameworkType = discoverer.GetTestFrameworkType(testFrameworkAttr);
// else // TODO: Log environmental error
}
// else // TODO: Log environmental error
}
}
catch
{
// TODO: Log environmental error
}
try
{
InnerTestFramework = (ITestFramework)Activator.CreateInstance(testFrameworkType);
}
catch
{
// TODO: Log environmental error
InnerTestFramework = new XunitTestFramework();
}
SourceInformationProvider = sourceInformationProvider;
}